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WO2018135960A1 - Cork material cloth and tape, a method for the production thereof and use of the tape for traditional weaving of carpets - Google Patents

Cork material cloth and tape, a method for the production thereof and use of the tape for traditional weaving of carpets Download PDF

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Publication number
WO2018135960A1
WO2018135960A1 PCT/PT2018/050003 PT2018050003W WO2018135960A1 WO 2018135960 A1 WO2018135960 A1 WO 2018135960A1 PT 2018050003 W PT2018050003 W PT 2018050003W WO 2018135960 A1 WO2018135960 A1 WO 2018135960A1
Authority
WO
WIPO (PCT)
Prior art keywords
cork
fabric
sheet
textile
cork material
Prior art date
Application number
PCT/PT2018/050003
Other languages
French (fr)
Portuguese (pt)
Inventor
Susana Gorete Duarte GODINHO
Original Assignee
Td Cork - Tapetes Decorativos Com Cortiça, Lda
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Td Cork - Tapetes Decorativos Com Cortiça, Lda filed Critical Td Cork - Tapetes Decorativos Com Cortiça, Lda
Publication of WO2018135960A1 publication Critical patent/WO2018135960A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/05—5 or more layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/025—Particulate layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538—Roughness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/744—Non-slip, anti-slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/02—Cork
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B32B2471/02—Carpets

Definitions

  • the present invention relates to cork fabrics and their production process, as well as cork tapes for application in traditional carpet weaving.
  • Cork is used in this application because it is a natural, lightweight, waterproof, flexible material that transmits softness to the touch and is a good thermal and acoustic insulator. Also due to its intrinsic characteristics, allergies caused by dust and mites can be reduced.
  • cork material in carpet weaving is not known, as these materials do not, by themselves, exhibit the mechanical characteristics necessary for the weaving operation, namely tensile strength, to withstand the stresses. that occur during the traditional automated carpet weaving process.
  • a cork-based fabric which, together with other materials, has improved mechanical strength when used in traditional carpet weaving.
  • the cork fabric is particularly a need for the cork fabric to be in the form of a tape.
  • the present invention relates to a cork fabric comprising at least one layered textile (1), an adhesive film (2), a layer (3) of overlapping cork material.
  • the cork fabric is characterized by comprising the following elements arranged in each other in the following order:
  • the cork fabric is characterized in that said sheet (3) of cork material is selected from the group consisting of natural cork, cork granules and their combination.
  • the cork fabric is characterized in that the textile fabric (1) comprises natural fibers, synthetic fibers or a combination thereof.
  • the cork fabric is characterized in that the adhesive film (2) is a water-based thermosetting material further comprising at least one polymer selected from the group consisting of ethylene vinyl acetate, polyurethane and polyethylene.
  • the cork fabric is characterized by having a surface finish selected from the group comprising impermeable finish, varnish, paint, fragrance and combinations thereof.
  • the cork fabric is characterized in that it comprises a thickness between 0.5 mm and 2.0 mm, preferably between 1.0 mm and 1.2 mm.
  • the cork fabric is characterized in that it comprises a width between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, more preferably between 5, 0 mm and 10.0 mm.
  • the invention further relates to a cork fabric production process comprising a step of gluing at least one sheet (3) of cork material to a first face of a textile web (1) by means of a film.
  • adhesive in a temperature range of 50 ° C to 115 ° C, preferably 70 ° C to 100 ° C, more preferably about 80 ° C.
  • the process comprises a further step of bonding at least one further sheet (3) of cork material to the second face of said textile web (1) by at least one further film (2).
  • adhesive defining two outer faces of cork material.
  • the process is further characterized by a step of polishing at least one of said cork material outer faces.
  • the process further comprises a spray-proofing step of at least one of said cork material outer faces.
  • the invention also relates to a cork tape manufacturing process, characterized in that it comprises a step of cutting cork fabric in portions of width between 3.0 mm and 50.0 mm, preferably between 5.0 mm. mm and 20.0 mm, more preferably between 5.0 mm and 10.0 mm.
  • the invention further relates to the use of cork ribbons in the manufacture of traditional automatic loom mats.
  • Fig. 1 shows a schematic of the layered constitution of the cork fabric of the present invention.
  • Fig. 2 illustrates a schematic of a preferred embodiment of the cork fabric of the present invention.
  • the present invention discloses a cork fabric, particularly in a cork tape form, its production process and the use of cork tape in traditional looms in the production of carpets.
  • any X-value presented in the course of the present disclosure should be interpreted as an approximate value of the actual X-value, as such approximation to the actual value would be reasonably expected by one skilled in the art due to experimental and / or measurement conditions that introduce deviations from the actual value.
  • the ranges of values given in this description are intended to provide a simplified and technically accepted way to indicate each individual value within its range.
  • the term "0.5 to 2.0" or “between 0.5 and 2.0” means any value within this range, for example 0.5; 0.6; 0.7; 0.8; 0.9; 1.0; 1.1; 1,2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 2.0. All values mentioned in this description are to be construed as approximate values in the sense previously adopted. For example a reference to "2.0” means "about 2.0".
  • cork material refers to natural cork, sealed natural cork, agglomerated cork, micro-agglomerated cork, cork granules or combinations thereof.
  • cork granules is meant, in the context of the present disclosure, cork fragments whose size is generally between 0.5 mm and 25.0 mm.
  • textile fabric is meant herein a structure consisting of the joining of fibers or yarns resulting from weaving, knitting or pressing processes and consisting of natural or synthetic materials or mixtures thereof.
  • Textile fabric may be subjected to surface treatment to improve its intrinsic characteristics for added strength or functionality. This treatment can be applied on one side or both sides. Treatment may include the application of a polymer, a wash, or a dye.
  • adheresive film in the context of the present invention a film-like adherent substance or film, capable of holding together other materials. It is usually composed of simple polymers that join the layers through pressure and temperature.
  • sheet of cork material is meant a planar surface, between 0.5 mm and 2.0 mm thick, laminated from cork material.
  • cork fabric is meant, in the context of the present disclosure, as the product obtained by gluing, with adhesive film, sheets of cork material on a textile fabric of varying length and width and having a thickness between 0, 5 mm to 2.0 mm, preferably between 1.0 mm and 1.2 mm. This product has the natural texture of cork that is noticeable to the touch. Cork fabric may have different surface finishes.
  • surface finish refers to the final finishes that are applied to the outer surfaces of the cork fabric and which serve to improve the characteristics of the final product.
  • cork tape is meant a band or strip of varying length cut from the cork fabric.
  • the tape in the context of the present invention may have a width between 3.0mm and 50.0mm, preferably between 5.0mm and 20.0mm, more preferably between 5.0mm and 10.0 mm.
  • binder means a binder substance which acts by reacting an aqueous dispersed polymeric matrix. It is an object of the invention to obtain a cork-based fabric which can be used in traditional automated carpet weaving.
  • cork fabric differs from known prior art cork fabrics in that it comprises more than one sheet of cork material.
  • the cork fabric makes it possible to obtain cork ribbons, also object of the present invention, having an unexpected mechanical behavior, which makes it possible to reconcile the use of cork material as an integral part of the carpet production process in a traditional automated weaving loom.
  • an object of the present invention is the process of producing cork fabric and cork tape.
  • the cork fabric object of the present invention is comprised of at least one textile web (1), an adhesive film (2) and a layer (3) of layered overlapping cork material, such as sandwich or referred to as "laminate".
  • the cork fabric of the invention comprises the following elements arranged in each other in the following order:
  • Said sheet (3) of cork material of the invention is selected from the group comprising natural cork, cork granules and their combination.
  • the textile fabric (1) employed in the present invention consists of natural fibers, synthetic fibers or a combination thereof.
  • the textile web (1) serves as a support for the sheets (3) of cork material. In addition, together with these, it improves the mechanical characteristics of cork fabric, so that it, in the form of cork ribbons, can be used in traditional carpet weaving.
  • the adhesive film (2) of this disclosure is a water-based thermosetting material comprising one or more polymers such as ethylene vinyl acetate, polyurethane, polyethylene or combinations thereof.
  • the adhesive films (2) of the present invention are used in solvent free film form. These films are pressure acting films and are heat activated to bind different materials together.
  • the adhesive film (2) is generally aqueous based and is composed of one or more polymers and copolymers as mentioned above.
  • the cork fabric of the invention may be subjected to a surface finish such as a waterproof finish, varnish, paint, fragrance or combinations thereof.
  • a surface finish such as a waterproof finish, varnish, paint, fragrance or combinations thereof.
  • These finishes are intended to improve their technical characteristics and visual appearance.
  • Such finishes result, for example, from spray application of chemicals (polymers, acrylic resins, dyes, waxes and lacquers)
  • An example of surface finish may be a waterproofing product and is used to give cork fabric greater durability and make it easier to clean.
  • Another example might be the use of different types of varnishes to increase abrasion resistance, make the touch softer or retard the spread of fire.
  • paints and products that enhance the natural color of cork can be used. Fragrances may also be used as already mentioned.
  • the cork fabric has a thickness between 0.5 mm and 2.0 mm, preferably between 1.0 mm and 1.2 mm.
  • the cork fabric of the present invention has a width between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, more preferably between 5.0 mm and 10.0 mm.
  • the invention also relates to the process of producing cork fabric as well as cork tapes obtained from cork fabric.
  • sheet (3) of cork material which will subsequently integrate said fabric of the invention.
  • the method of producing cork material sheet (3) comprises the following steps:
  • the cork fabric of the present invention can be started which comprises a step of gluing at least one cork material sheet (3) on a first face. of a textile web (1) by means of an adhesive film (2), in a temperature range of 50 ° C to 115 ° C, preferably from 70 ° C to 100 ° C, more preferably about 80 ° C.
  • the cork fabric production process comprises yet another step of bonding at least one further sheet (3) of cork material to the second face of said textile web (1) by means of at least one other sheet. adhesive film (2) defining two outer faces of cork material.
  • the process further comprises a polishing step of at least one of said outer cork material faces.
  • the process further comprises a spray proofing step of at least one of said outer cork material faces.
  • the cork tape manufacturing process of the present invention comprises the step of cutting the cork fabric obtained by the process described above, in portions of width between 3.0 mm and 50.0 mm, preferably between 5.0 mm. and 20.0 mm, more preferably between 5.0 mm and 10.0 mm, thereby obtaining said cork tapes.
  • the cork fabric is placed and rolled up. It is then placed in a vise and the cork fabric is cut through a blade, perpendicular to the width of the roll and along it, obtaining the cork tapes.
  • Cork tapes produced according to the invention may be used in the manufacture of traditional automatic loom mats.
  • Carpets produced on a traditional loom according to the invention have flexibility, softness to the touch and wash resistance.
  • cork in rugs allows them to acquire characteristics that make their use more advantageous compared to other types of rugs.
  • mats made from embedded cork have better shock absorption and damping, are more durable and have greater surface friction, reducing their slip on smooth surfaces.
  • Cork also helps to minimize the risk of allergy as it does not absorb dust and reduces the appearance of dust mites.
  • carpets made of cork incorporated offer a pleasant visual effect, a soft touch on the skin and a feeling of comfort provided by the natural temperature very close to the human body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Floor Finish (AREA)

Abstract

The present invention relates to a cork cloth comprising, at least, a textile fabric (1), an adhesive film (2), and a sheet (3) of cork material, which are superposed in layers. The method for producing the cork cloth comprises a step of adhesive bonding of at least one sheet (3) of cork material on a first face of a textile fabric (1) by means of an adhesive film (2), in a range of temperatures from 50ºC to 115ºC, preferably from 70ºC to 100ºC, and most preferably at about 80ºC. The present invention provides a method for manufacturing cork tapes by cutting the fabric into portions having a width of between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, and most preferably between 5.0 mm and 10.0 mm, for use in the manufacture of carpets on an automatic traditional loom.

Description

DESCRIÇÃO  DESCRIPTION
TECIDO E FITA DE MATERIAL DE CORTIÇA, SEU PROCESSO DE PRODUÇÃO E UTILIZAÇÃO DA FITA PARA TECELAGEM TRADICIONAL DE TAPETES" CORK MATERIAL FABRIC AND TAPE, YOUR PROCESS FOR PRODUCING AND USING RIBBON FOR TRADITIONAL CARPETING "
CAMPO DA INVENÇÃO FIELD OF INVENTION
A presente invenção refere-se a tecidos de cortiça e ao seu processo de produção, bem como, a fitas de cortiça para aplicação em tecelagem tradicional de tapetes. The present invention relates to cork fabrics and their production process, as well as cork tapes for application in traditional carpet weaving.
ANTECEDENTES DA INVENÇÃO BACKGROUND OF THE INVENTION
São conhecidas diferentes técnicas que referem a utilização de produtos à base de cortiça em tapetes. Different techniques are known which refer to the use of cork based products in carpets.
A cortiça é utilizada nesta aplicação por ser um material natural, leve, impermeável, flexível, que transmite suavidade ao toque e por ser um bom isolante em termos térmicos e acústicos. Também pelas suas características intrínsecas, consegue-se reduzir as alergias causadas pelo pó e pelos ácaros. Cork is used in this application because it is a natural, lightweight, waterproof, flexible material that transmits softness to the touch and is a good thermal and acoustic insulator. Also due to its intrinsic characteristics, allergies caused by dust and mites can be reduced.
No entanto, não é conhecida a utilização do material de cortiça na tecelagem de tapetes, uma vez que estes materiais, por si só, não apresentam as características mecânicas necessárias à operação de tecelagem, nomeadamente a resistência à tração, de modo a suportar as tensões que ocorrem durante o processo de tecelagem tradicional automatizado de tapetes. Sendo assim, existe a necessidade de um tecido à base de cortiça que, em conjunto com outros materiais, possua resistência mecânica melhorada quando utilizado na tecelagem tradicional de tapetes. Dada a especificidade dos processos de tecelagem habitualmente utilizados na indústria de tapetes, existe, de um modo particular, a necessidade de o tecido à base de cortiça estar na forma de uma fita. However, the use of cork material in carpet weaving is not known, as these materials do not, by themselves, exhibit the mechanical characteristics necessary for the weaving operation, namely tensile strength, to withstand the stresses. that occur during the traditional automated carpet weaving process. Thus, there is a need for a cork-based fabric which, together with other materials, has improved mechanical strength when used in traditional carpet weaving. Given the specificity of the weaving processes commonly used in the carpet industry, there is particularly a need for the cork fabric to be in the form of a tape.
SUMÁRIO DA INVENÇÃO SUMMARY OF THE INVENTION
A presente invenção refere-se a um tecido de cortiça caracterizado por compreender, pelo menos, uma tela (1) têxtil, um filme (2) adesivo, uma folha (3) de material de cortiça, sobrepostos em camadas. The present invention relates to a cork fabric comprising at least one layered textile (1), an adhesive film (2), a layer (3) of overlapping cork material.
Numa forma de realização, o tecido de cortiça é caracterizado por compreender os seguintes elementos dispostos uns nos outros pela seguinte ordem: In one embodiment, the cork fabric is characterized by comprising the following elements arranged in each other in the following order:
• uma folha (3) de material de cortiça; • a sheet (3) of cork material;
• um filme (2) adesivo;  • an adhesive film (2);
• uma tela (1) têxtil;  • a fabric (1) textile;
• um filme (2) adesivo; e  • an adhesive film (2); and
• uma folha (3) de material de cortiça.  • a sheet (3) of cork material.
De um modo preferido, o tecido de cortiça é caracterizado por a referida folha (3) de material de cortiça ser selecionada do grupo consistindo em cortiça natural, granulado de cortiça e sua combinação. De um modo preferido, o tecido de cortiça é caracterizado por a tela (1) têxtil compreender fibras naturais, fibras sintéticas ou sua combinação. Preferably, the cork fabric is characterized in that said sheet (3) of cork material is selected from the group consisting of natural cork, cork granules and their combination. Preferably, the cork fabric is characterized in that the textile fabric (1) comprises natural fibers, synthetic fibers or a combination thereof.
De um modo preferido, o tecido de cortiça é caracterizado por o filme (2) adesivo ser um material termo-adesivo, à base de água, compreendendo ainda pelo menos um polímero selecionado do grupo consistindo em etileno acetato de vinilo, poliuretano e polietileno . Preferably, the cork fabric is characterized in that the adhesive film (2) is a water-based thermosetting material further comprising at least one polymer selected from the group consisting of ethylene vinyl acetate, polyurethane and polyethylene.
Numa forma de realização, o tecido de cortiça é caracterizado por ter um acabamento de superfície selecionado do grupo compreendendo acabamento impermeável, verniz, tinta, fragrância e suas combinações. In one embodiment, the cork fabric is characterized by having a surface finish selected from the group comprising impermeable finish, varnish, paint, fragrance and combinations thereof.
Numa forma de realização preferida, o tecido de cortiça é caracterizado por compreender uma espessura entre 0,5 mm e 2,0 mm, de um modo preferido entre 1,0 mm e 1,2 mm. In a preferred embodiment, the cork fabric is characterized in that it comprises a thickness between 0.5 mm and 2.0 mm, preferably between 1.0 mm and 1.2 mm.
Noutra forma de realização preferida, o tecido de cortiça é caracterizado por compreender uma largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. In another preferred embodiment, the cork fabric is characterized in that it comprises a width between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, more preferably between 5, 0 mm and 10.0 mm.
A invenção refere-se ainda a um processo de produção do tecido de cortiça, caracterizado por compreender um passo de colagem de pelo menos uma folha (3) de material de cortiça numa primeira face de uma tela (1) têxtil por intermédio de um filme (2) adesivo, numa gama de temperaturas de 50 °C a 115 °C, de um modo preferido de 70 °C a 100 °C, de um modo mais preferido de cerca de 80 °C. Numa forma de realização, o processo é caracterizado por compreender ainda um outro passo de colagem de pelo menos uma outra folha (3) de material de cortiça na segunda face da referida tela (1) têxtil por intermédio de pelo menos um outro filme (2) adesivo, definindo duas faces exteriores de material de cortiça . The invention further relates to a cork fabric production process comprising a step of gluing at least one sheet (3) of cork material to a first face of a textile web (1) by means of a film. (2) adhesive, in a temperature range of 50 ° C to 115 ° C, preferably 70 ° C to 100 ° C, more preferably about 80 ° C. In one embodiment, the process comprises a further step of bonding at least one further sheet (3) of cork material to the second face of said textile web (1) by at least one further film (2). ) adhesive, defining two outer faces of cork material.
Numa outra forma de realização, o processo é caracterizado por compreender ainda um passo de polimento de pelo menos uma das referidas faces exteriores de material de cortiça. In another embodiment, the process is further characterized by a step of polishing at least one of said cork material outer faces.
Ainda noutra forma de realização, o processo é caracterizado por compreender ainda um passo de impermeabilização por pulverização de pelo menos uma das referidas faces exteriores de material de cortiça. In yet another embodiment, the process further comprises a spray-proofing step of at least one of said cork material outer faces.
A invenção refere-se também a um processo de fabrico de fitas de cortiça, caracterizado por compreender um passo de corte do tecido de cortiça em parcelas de largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. The invention also relates to a cork tape manufacturing process, characterized in that it comprises a step of cutting cork fabric in portions of width between 3.0 mm and 50.0 mm, preferably between 5.0 mm. mm and 20.0 mm, more preferably between 5.0 mm and 10.0 mm.
A invenção refere-se ainda à utilização das fitas de cortiça no fabrico de tapetes em tear tradicional automático. The invention further relates to the use of cork ribbons in the manufacture of traditional automatic loom mats.
BREVE DESCRIÇÃO DOS DESENHOS BRIEF DESCRIPTION OF DRAWINGS
A seguir procede-se à descrição da invenção fazendo referência aos desenhos anexos, em que: A Fig. 1 mostra um esquema da constituição por camadas do tecido de cortiça da presente invenção. The following is a description of the invention with reference to the accompanying drawings, in which: Fig. 1 shows a schematic of the layered constitution of the cork fabric of the present invention.
A Fig. 2 ilustra um esquema de uma forma de realização preferida da do tecido de cortiça da presente invenção. Fig. 2 illustrates a schematic of a preferred embodiment of the cork fabric of the present invention.
DESCRIÇÃO DE TALHADA DA INVENÇÃO DESCRIPTION OF INVENTION
A presente invenção divulga um tecido de cortiça, de um modo particular, numa forma de fita de cortiça, o seu processo de produção e a utilização da fita de cortiça em teares tradicionais na produção de tapetes. The present invention discloses a cork fabric, particularly in a cork tape form, its production process and the use of cork tape in traditional looms in the production of carpets.
Salvo expressa indicação em contrário, as percentagens mencionadas na presente descrição e reivindicações referem-se a percentagens em peso. Unless otherwise indicated, the percentages mentioned in the present description and claims refer to percentages by weight.
No contexto da presente descrição, o termo "compreendendo" deve ser entendido como "incluindo, entre outros". Como tal, o referido termo não deve ser interpretado como "consistindo apenas de". In the context of the present disclosure, the term "comprising" is to be understood as "including but not limited to". As such, that term should not be construed as "consisting solely of".
Note-se que qualquer valor X apresentado no decurso da presente descrição deve ser interpretado como um valor aproximado do valor X real, uma vez que tal aproximação ao valor real seria razoavelmente esperada pelo especialista na técnica devido a condições experimentais e/ou de medição que introduzem desvios ao valor real. Note that any X-value presented in the course of the present disclosure should be interpreted as an approximate value of the actual X-value, as such approximation to the actual value would be reasonably expected by one skilled in the art due to experimental and / or measurement conditions that introduce deviations from the actual value.
Salvo indicação em contrário, as gamas de valores apresentadas na presente descrição destinam-se a proporcionar um modo simplificado e tecnicamente aceite para indicar cada valor individual dentro da respetiva gama. A titulo de exemplo, a expressão "0,5 a 2,0" ou "entre 0,5 e 2,0" significa qualquer valor dentro deste intervalo, por exemplo 0,5; 0,6; 0,7; 0,8; 0,9; 1,0; 1,1; 1,2; 1,3; 1,4; 1,5; 1,6; 1,7; 1,8; 1,9; 2,0. Todos os valores mencionados na presente descrição devem ser interpretados como valores aproximados, no sentido adotado anteriormente. Por exemplo uma referência a "2,0" significa "cerca de 2,0". Unless otherwise indicated, the ranges of values given in this description are intended to provide a simplified and technically accepted way to indicate each individual value within its range. By way of example, the term "0.5 to 2.0" or "between 0.5 and 2.0" means any value within this range, for example 0.5; 0.6; 0.7; 0.8; 0.9; 1.0; 1.1; 1,2; 1.3; 1.4; 1.5; 1.6; 1.7; 1.8; 1.9; 2.0. All values mentioned in this description are to be construed as approximate values in the sense previously adopted. For example a reference to "2.0" means "about 2.0".
Na presente descrição, a expressão "material de cortiça" ou simplesmente "cortiça" refere-se a cortiça natural, cortiça natural colmatada, cortiça aglomerada, cortiça microaglomerada, granulado de cortiça ou a suas combinações. In the present description, the term "cork material" or simply "cork" refers to natural cork, sealed natural cork, agglomerated cork, micro-agglomerated cork, cork granules or combinations thereof.
Por "granulado de cortiça" entende-se, no contexto da presente descrição, fragmentos de cortiça cu a dimensão está compreendida, de um modo geral, entre 0,5 mm e 25,0 mm. By "cork granules" is meant, in the context of the present disclosure, cork fragments whose size is generally between 0.5 mm and 25.0 mm.
Pela expressão "tela têxtil" entende-se na presente descrição como sendo uma estrutura constituída pela união de fibras ou fios, resultantes de processos de tecelagem, tricotagem ou prensagem, sendo composta por matérias naturais ou sintéticas, ou suas misturas. A tela têxtil poderá ser sujeita a um tratamento nas suas superfícies para que sejam melhoradas as suas características intrínsecas, conferindo mais resistência ou funcionalidade. Este tratamento pode ser aplicado numa só face ou em ambas as faces. O tratamento pode incluir a aplicação de um polímero, uma lavagem, ou um tingimento. By the term "textile fabric" is meant herein a structure consisting of the joining of fibers or yarns resulting from weaving, knitting or pressing processes and consisting of natural or synthetic materials or mixtures thereof. Textile fabric may be subjected to surface treatment to improve its intrinsic characteristics for added strength or functionality. This treatment can be applied on one side or both sides. Treatment may include the application of a polymer, a wash, or a dye.
Por "filme adesivo" entende-se no contexto da presente invenção como sendo uma substância aderente, em forma de filme ou película, capaz de manter unidos outros materiais. Normalmente é composto por polímeros simples e que unem as camadas através da pressão e temperatura. By "adhesive film" is meant in the context of the present invention a film-like adherent substance or film, capable of holding together other materials. It is usually composed of simple polymers that join the layers through pressure and temperature.
Como "folha de material de cortiça" entende-se como sendo uma superfície planar, com uma espessura entre 0,5 mm e 2,0 mm, laminada a partir de material de cortiça. By "sheet of cork material" is meant a planar surface, between 0.5 mm and 2.0 mm thick, laminated from cork material.
Por "tecido de cortiça" entende-se, no contexto da presente descrição, como o produto obtido da colagem, com filme adesivo, de folhas de material de cortiça sobre uma tela têxtil, de comprimento e largura variável e com uma espessura entre 0,5 mm e 2,0 mm, de um modo preferido entre 1,0 mm e 1,2 mm. Este produto possui a textura natural da cortiça que é percetível, nomeadamente, ao tato. O tecido de cortiça poderá ter diferentes acabamentos de superfície. By "cork fabric" is meant, in the context of the present disclosure, as the product obtained by gluing, with adhesive film, sheets of cork material on a textile fabric of varying length and width and having a thickness between 0, 5 mm to 2.0 mm, preferably between 1.0 mm and 1.2 mm. This product has the natural texture of cork that is noticeable to the touch. Cork fabric may have different surface finishes.
Na presente descrição, a expressão "acabamento superficial" refere-se aos acabamentos finais que são aplicados sobre as superfícies exteriores do tecido de cortiça e que servem para melhorar as características do produto final. In the present description, the term "surface finish" refers to the final finishes that are applied to the outer surfaces of the cork fabric and which serve to improve the characteristics of the final product.
Por "fita de cortiça" entende-se como sendo uma banda ou tira, de comprimento variável, cortada a partir do tecido de cortiça. A fita, no contexto da presente invenção, pode possuir uma largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. By "cork tape" is meant a band or strip of varying length cut from the cork fabric. The tape in the context of the present invention may have a width between 3.0mm and 50.0mm, preferably between 5.0mm and 20.0mm, more preferably between 5.0mm and 10.0 mm.
No âmbito da presente invenção, entende-se por "aglomerante" uma substância aglutinante, que atua através da reação de uma matriz polimérica dispersa em base aquosa. É um objetivo da invenção obter um tecido à base de cortiça que possa ser utilizado na tecelagem tradicional automatizado de tapetes . For the purposes of the present invention, "binder" means a binder substance which acts by reacting an aqueous dispersed polymeric matrix. It is an object of the invention to obtain a cork-based fabric which can be used in traditional automated carpet weaving.
Na presente invenção, o tecido de cortiça difere dos tecidos de cortiça já conhecidos do estado da técnica, uma vez que compreende mais do que uma folha de material de cortiça. In the present invention, cork fabric differs from known prior art cork fabrics in that it comprises more than one sheet of cork material.
Surpreendentemente, o tecido de cortiça permite obter fitas de cortiça, igualmente objeto da presente invenção, apresentando um comportamento mecânico inesperado, que permite conciliar a utilização de material de cortiça como parte integrante no processo de produção de tapetes num tear de tecelagem tradicional automatizado. Surprisingly, the cork fabric makes it possible to obtain cork ribbons, also object of the present invention, having an unexpected mechanical behavior, which makes it possible to reconcile the use of cork material as an integral part of the carpet production process in a traditional automated weaving loom.
É também um objeto da presente invenção o processo de produção do tecido de cortiça e da fita de cortiça. Also an object of the present invention is the process of producing cork fabric and cork tape.
O tecido de cortiça objeto da presente invenção é constituído pelo menos por uma tela (1) têxtil, por um filme (2) adesivo e por uma folha (3) de material de cortiça, sobrepostos em camadas, do tipo "sandwich" ou também designado como "laminado" . The cork fabric object of the present invention is comprised of at least one textile web (1), an adhesive film (2) and a layer (3) of layered overlapping cork material, such as sandwich or referred to as "laminate".
Numa forma de realização da invenção, o tecido de cortiça da invenção compreende os seguintes elementos dispostos uns nos outros pela seguinte ordem: In one embodiment of the invention, the cork fabric of the invention comprises the following elements arranged in each other in the following order:
• uma folha (3) de material de cortiça; • a sheet (3) of cork material;
• um filme (2) adesivo;  • an adhesive film (2);
• uma tela (1) têxtil; • um filme (2) adesivo; e • a fabric (1) textile; • an adhesive film (2); and
• uma folha (3) de material de cortiça.  • a sheet (3) of cork material.
A referida folha (3) de material de cortiça da invenção é selecionada do grupo compreendendo cortiça natural, granulado de cortiça e sua combinação. Said sheet (3) of cork material of the invention is selected from the group comprising natural cork, cork granules and their combination.
A tela (1) têxtil empregue na presente invenção é constituída por fibras naturais, fibras sintéticas ou a combinação destas. The textile fabric (1) employed in the present invention consists of natural fibers, synthetic fibers or a combination thereof.
A tela (1) têxtil serve como suporte das folhas (3) de material de cortiça. Para além disso, em conjunto com estas, melhora as características mecânicas do tecido de cortiça, para que este, na forma de fitas de cortiça, possa ser utilizado na tecelagem tradicional de tapetes. The textile web (1) serves as a support for the sheets (3) of cork material. In addition, together with these, it improves the mechanical characteristics of cork fabric, so that it, in the form of cork ribbons, can be used in traditional carpet weaving.
O filme (2) adesivo constante de presente descrição é um material termo-adesivo, à base de água, compreendendo um ou mais polímeros, como por exemplo, etileno acetato de vinilo, poliuretano, polietileno ou combinações destes. The adhesive film (2) of this disclosure is a water-based thermosetting material comprising one or more polymers such as ethylene vinyl acetate, polyurethane, polyethylene or combinations thereof.
Os filmes (2) adesivos da presente invenção são utilizados na forma de filme e isento de solventes. Estes filmes são películas, que atuam por pressão, e são ativados por ação do calor para ligar os diferentes materiais entre si. O filme (2) adesivo é, geralmente, de base aquosa e é composto por um ou mais polímeros e copolímeros, como mencionado acima. The adhesive films (2) of the present invention are used in solvent free film form. These films are pressure acting films and are heat activated to bind different materials together. The adhesive film (2) is generally aqueous based and is composed of one or more polymers and copolymers as mentioned above.
O tecido de cortiça da invenção poderá ser submetido a um acabamento de superfície como, por exemplo, acabamento impermeável, verniz, tinta, fragrância ou combinações destes. Estes acabamentos têm por finalidade melhorar as suas características técnicas e o seu aspeto visual. Os referidos acabamentos resultam, por exemplo, da aplicação por pulverização de produtos químicos (polímeros, resinas acrílicas, corantes, ceras e lacas) The cork fabric of the invention may be subjected to a surface finish such as a waterproof finish, varnish, paint, fragrance or combinations thereof. These finishes are intended to improve their technical characteristics and visual appearance. Such finishes result, for example, from spray application of chemicals (polymers, acrylic resins, dyes, waxes and lacquers)
Um exemplo de acabamento de superfície pode ser um produto de impermeabilização e é utilizado com o fim de dar ao tecido de cortiça maior durabilidade e tornar mais fácil a sua limpeza. Outro exemplo pode ser o emprego de diferentes tipos de vernizes, com o objetivo de aumentar a resistência à abrasão, tornar o toque mais sedoso ou retardar a propagação do fogo. Dentro dos acabamentos que melhoram o aspeto visual, podem ser utilizadas tintas e produtos que realcem a cor natural da cortiça. Podem, também, ser utilizadas fragrâncias, como já mencionado . An example of surface finish may be a waterproofing product and is used to give cork fabric greater durability and make it easier to clean. Another example might be the use of different types of varnishes to increase abrasion resistance, make the touch softer or retard the spread of fire. Within the finishes that enhance the visual appearance, paints and products that enhance the natural color of cork can be used. Fragrances may also be used as already mentioned.
Numa forma de realização preferida da invenção, o tecido de cortiça possui uma espessura entre 0,5 mm e 2,0 mm, de um modo preferido entre 1,0 mm e 1,2 mm. In a preferred embodiment of the invention, the cork fabric has a thickness between 0.5 mm and 2.0 mm, preferably between 1.0 mm and 1.2 mm.
Noutra forma de realização preferida da invenção, o tecido de cortiça da presente invenção possui uma largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. In another preferred embodiment of the invention, the cork fabric of the present invention has a width between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, more preferably between 5.0 mm and 10.0 mm.
A invenção refere-se igualmente ao processo de produção do tecido de cortiça, bem como de fitas de cortiça obtidas a partir do tecido de cortiça. The invention also relates to the process of producing cork fabric as well as cork tapes obtained from cork fabric.
Antes de iniciar o processo de produção do tecido de cortiça da invenção, é relevante explicar como é produzida a folha (3) de material de cortiça que irá, subsequentemente, integrar o referido tecido da invenção. Before starting the process of producing the cork fabric of the invention, it is relevant to explain how the cork fabric is produced. sheet (3) of cork material which will subsequently integrate said fabric of the invention.
Assim, o método de produção da folha (3) de material de cortiça compreende os passos seguintes: Thus, the method of producing cork material sheet (3) comprises the following steps:
• mistura do material de cortiça com um aglomerante de poliuretano de base aquosa (3 a 8 % em peso); • mixing the cork material with an aqueous based polyurethane binder (3 to 8% by weight);
• prensagem da mistura; • pressing of the mixture;
• polimerização do aglomerante de poliuretano de base aquosa, aquecido a mistura a uma temperatura na gama entre os 100 °C e os 150 °C, durante um período de tempo máximo de 24 horas; Polymerization of the aqueous based polyurethane binder, heating the mixture to a temperature in the range 100 ° C to 150 ° C for a maximum period of 24 hours;
• arrefecimento e estabilização da folha (3) de material de cortiça resultante da mistura do material de cortiça com aglomerante, durante um período de tempo mínimo de 5 dias; Cooling and stabilizing the sheet (3) of cork material resulting from the mixing of cork material with binder for a minimum period of 5 days;
• laminação da folha (3) de material de cortiça para obter a espessura pretendida, por exemplo até 0,7 mm. • lamination of sheet (3) of cork material to obtain the desired thickness, for example up to 0.7 mm.
Após a obtenção da folha (3) de material de cortiça, pode dar-se início à produção do tecido de cortiça da presente invenção, a qual compreende um passo de colagem de pelo menos uma folha (3) de material de cortiça numa primeira face de uma tela (1) têxtil por intermédio de um filme (2) adesivo, numa gama de temperaturas de 50 °C a 115 °C, de um modo preferido de 70 °C a 100 °C, de um modo mais preferido de cerca de 80 °C. Numa forma de realização, o processo de produção do tecido de cortiça compreende ainda um outro passo de colagem de pelo menos uma outra folha (3) de material de cortiça na segunda face da referida tela (1) têxtil por intermédio de pelo menos um outro filme (2) adesivo, definindo duas faces exteriores de material de cortiça. After obtaining the cork material sheet (3), production of the cork fabric of the present invention can be started which comprises a step of gluing at least one cork material sheet (3) on a first face. of a textile web (1) by means of an adhesive film (2), in a temperature range of 50 ° C to 115 ° C, preferably from 70 ° C to 100 ° C, more preferably about 80 ° C. In one embodiment, the cork fabric production process comprises yet another step of bonding at least one further sheet (3) of cork material to the second face of said textile web (1) by means of at least one other sheet. adhesive film (2) defining two outer faces of cork material.
Noutra forma de realização, o processo compreende ainda um passo de polimento de pelo menos uma das referidas faces exteriores de material de cortiça. In another embodiment, the process further comprises a polishing step of at least one of said outer cork material faces.
Ainda noutra forma de realização, o processo compreende ainda um passo de impermeabilização por pulverização de pelo menos uma das referidas faces exteriores de material de cortiça. In yet another embodiment, the process further comprises a spray proofing step of at least one of said outer cork material faces.
O processo de fabrico de fitas de cortiça da presente invenção compreende o passo de cortar o tecido de cortiça obtido pelo processo anteriormente descrito, em parcelas de largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm, obtendo assim as referidas fitas de cortiça. The cork tape manufacturing process of the present invention comprises the step of cutting the cork fabric obtained by the process described above, in portions of width between 3.0 mm and 50.0 mm, preferably between 5.0 mm. and 20.0 mm, more preferably between 5.0 mm and 10.0 mm, thereby obtaining said cork tapes.
Numa forma de realização, para facilitar o corte das fitas de cortiça, o tecido de cortiça é colocado e enrolado em rolo. Posteriormente este é colocado num torno e o tecido de cortiça é cortado através de uma lâmina, perpendicularmente à largura do rolo e ao longo do mesmo, obtendo-se as fitas de cortiça. In one embodiment, to facilitate cutting the cork tapes, the cork fabric is placed and rolled up. It is then placed in a vise and the cork fabric is cut through a blade, perpendicular to the width of the roll and along it, obtaining the cork tapes.
As fitas de cortiça produzidas de acordo com a invenção podem ser utilizadas no fabrico de tapetes em tear tradicional automático . Os tapetes produzidos num tear tradicional, de acordo com a invenção, possuem flexibilidade, suavidade ao toque e resistência à lavagem. Cork tapes produced according to the invention may be used in the manufacture of traditional automatic loom mats. Carpets produced on a traditional loom according to the invention have flexibility, softness to the touch and wash resistance.
A incorporação de cortiça em tapetes permite que estes adquiriram características que tornam a sua utilização mais vantajosa, em comparação com outros tipos de tapetes. The incorporation of cork in rugs allows them to acquire characteristics that make their use more advantageous compared to other types of rugs.
Para além das características genéricas da cortiça, os tapetes produzidos com cortiça incorporada têm melhor absorção e amortecimento dos choques, são mais duráveis e têm maior atrito superficial, reduzindo o seu deslizamento sobre superfícies lisas . In addition to the general characteristics of cork, mats made from embedded cork have better shock absorption and damping, are more durable and have greater surface friction, reducing their slip on smooth surfaces.
A cortiça ainda contribui para minimizar os riscos de alergia, pois não absorve o pó e reduz o aparecimento de ácaros. Cork also helps to minimize the risk of allergy as it does not absorb dust and reduces the appearance of dust mites.
Em termos estéticos e sensitivos, os tapetes produzidos com cortiça incorporada, oferecem um agradável efeito visual, um toque suave na pele e uma sensação de conforto proporcionada pela temperatura natural muito próxima à do corpo humano. In terms of aesthetics and sensitivity, carpets made of cork incorporated offer a pleasant visual effect, a soft touch on the skin and a feeling of comfort provided by the natural temperature very close to the human body.

Claims

RE IVINDICAÇÕES REINDICATIONS
1. Tecido de cortiça caracterizado por compreender, pelo menos, uma tela (1) têxtil, um filme (2) adesivo, uma folha (3) de material de cortiça, sobrepostos em camadas. 1. Cork fabric comprising at least one layer (1) of textile, an adhesive film (2), a sheet (3) of overlapping cork material.
2. Tecido de cortiça de acordo com a reivindicação 1, caracterizado por compreender os seguintes elementos dispostos uns nos outros pela seguinte ordem: Cork fabric according to claim 1, characterized in that it comprises the following elements arranged in each other in the following order:
• uma folha (3) de material de cortiça; • a sheet (3) of cork material;
• um filme (2) adesivo;  • an adhesive film (2);
• uma tela (1) têxtil;  • a fabric (1) textile;
• um filme (2) adesivo; e  • an adhesive film (2); and
• uma folha (3) de material de cortiça.  • a sheet (3) of cork material.
3. Tecido de cortiça de acordo com a reivindicação 1 ou 2, caracterizado por a referida folha (3) de material de cortiça ser selecionada do grupo consistindo em cortiça natural, granulado de cortiça e sua combinação. Cork fabric according to claim 1 or 2, characterized in that said sheet (3) of cork material is selected from the group consisting of natural cork, cork granules and their combination.
4. Tecido de cortiça de acordo com a reivindicação 1 ou 2, caracterizado por a tela (1) têxtil compreender fibras naturais, fibras sintéticas ou sua combinação. Cork fabric according to claim 1 or 2, characterized in that the textile fabric (1) comprises natural fibers, synthetic fibers or a combination thereof.
5. Tecido de cortiça de acordo com a reivindicação 1 ou 2, caracterizado por o filme (2) adesivo ser um material termo-adesivo, à base de água, compreendendo ainda pelo menos um polímero selecionado do grupo consistindo em etileno acetato de vinilo, poliuretano e polietileno. Cork fabric according to claim 1 or 2, characterized in that the adhesive film (2) is a water-based thermosetting material, further comprising at least one polymer selected from the group consisting of ethylene vinyl acetate, polyurethane and polyethylene.
1 Tecido de cortiça de acordo com qualquer reivindicação anterior, caracterizado por ter um acabamento de superfície selecionado do grupo compreendendo acabamento impermeável, verniz, tinta, fragrância e suas combinações. 1 Cork fabric according to any preceding claim, characterized in that it has a surface finish selected from the group comprising waterproof finish, varnish, paint, fragrance and combinations thereof.
Tecido de cortiça de acordo com qualquer uma das reivindicações anteriores, caracterizado por compreender uma espessura entre 0,5 mm e 2,0 mm, de um modo preferido entre 1,0 mm e 1,2 mm. Cork fabric according to any one of the preceding claims, characterized in that it comprises a thickness between 0.5 mm and 2.0 mm, preferably between 1.0 mm and 1.2 mm.
Tecido de cortiça de acordo com a reivindicação anterior, caracterizado por compreender uma largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. Cork fabric according to the preceding claim, characterized in that it comprises a width between 3.0 mm and 50.0 mm, preferably between 5.0 mm and 20.0 mm, more preferably between 5.0 mm. mm and 10.0 mm.
Processo de produção do tecido de cortiça reivindicado em qualquer uma das reivindicações anteriores, caracterizado por compreender um passo de colagem de pelo menos uma folha (3) de material de cortiça numa primeira face de uma tela (1) têxtil por intermédio de um filme (2) adesivo, numa gama de temperaturas de 50 °C a 115 °C, de um modo preferido de 70 °C a 100 °C, de um modo mais preferido de cerca de 80 °C. Process for producing the cork fabric according to any one of the preceding claims, characterized in that it comprises a step of gluing at least one sheet (3) of cork material on a first face of a textile web (1) by means of a film ( 2) adhesive, in a temperature range of 50 ° C to 115 ° C, preferably 70 ° C to 100 ° C, more preferably about 80 ° C.
Processo de acordo com a reivindicação 9, caracterizado por compreender ainda um outro passo de colagem de pelo menos uma outra folha (3) de material de cortiça na segunda face da referida tela (1) têxtil por intermédio de pelo menos um outro filme (2) adesivo, definindo duas faces exteriores de material de cortiça. Method according to claim 9, characterized in that it comprises yet another step of gluing at least one other sheet (3) of cork material on the second face of said textile web (1) by means of at least one other film (2). ) adhesive, defining two outer faces of cork material.
11. Processo de acordo com a reivindicação 10, caracterizado por compreender ainda um passo de polimento de pelo menos uma das referidas faces exteriores de material de cortiça. A method as claimed in claim 10, further comprising a polishing step of at least one of said cork material outer faces.
12. Processo de acordo com uma das reivindicações 10 ou 11, caracterizado por compreender ainda um passo de impermeabilização por pulverização de pelo menos uma das referidas faces exteriores de material de cortiça. Method according to one of Claims 10 or 11, characterized in that it further comprises a spray-proofing step of at least one of said cork material outer faces.
13. Processo de fabrico de fitas de cortiça, caracterizado por compreender um passo de corte do tecido de cortiça produzido de acordo com qualquer uma das reivindicações 9 a 12, em parcelas de largura entre 3,0 mm e 50,0 mm, de um modo preferido entre 5,0 mm e 20,0 mm, de um modo mais preferido entre 5,0 mm e 10,0 mm. Process for the manufacture of cork tapes, characterized in that it comprises a cutting step of cork fabric produced according to any one of claims 9 to 12, in portions of width between 3.0 mm and 50.0 mm, of a preferably between 5.0 mm and 20.0 mm, more preferably between 5.0 mm and 10.0 mm.
14. Utilização das fitas de cortiça de acordo com a reivindicação 13, no fabrico de tapetes em tear tradicional automático . Use of cork ribbons according to claim 13 in the manufacture of traditional automatic loom mats.
3 3
PCT/PT2018/050003 2017-01-18 2018-01-17 Cork material cloth and tape, a method for the production thereof and use of the tape for traditional weaving of carpets WO2018135960A1 (en)

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PT109861A PT109861A (en) 2017-01-18 2017-01-18 CORK FABRIC AND FABRIC, YOUR PROCESS FOR PRODUCING AND USING RIBBON FOR TRADITIONAL CARPETING
PT109861 2017-01-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3114769A1 (en) * 2020-10-07 2022-04-08 RTFACT Brands Cork biodegradable fabric

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190602385A (en) * 1906-01-31 1906-12-20 Frederick William Henry Durant Improvements in or relating to the Manufacture of Compound Fabrics from Cork and Textile Fabric.
US20150174853A1 (en) * 2013-12-20 2015-06-25 Hyundai Motor Company Decoration film using natural cork materials and method for manufacturing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190602385A (en) * 1906-01-31 1906-12-20 Frederick William Henry Durant Improvements in or relating to the Manufacture of Compound Fabrics from Cork and Textile Fabric.
US20150174853A1 (en) * 2013-12-20 2015-06-25 Hyundai Motor Company Decoration film using natural cork materials and method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3114769A1 (en) * 2020-10-07 2022-04-08 RTFACT Brands Cork biodegradable fabric
WO2022074594A1 (en) 2020-10-07 2022-04-14 RTFACT Brands Biodegradable cork fabric

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