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EP1481599A2 - Feuchtigskeistregelnde Unterbekleidung - Google Patents

Feuchtigskeistregelnde Unterbekleidung Download PDF

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Publication number
EP1481599A2
EP1481599A2 EP04396053A EP04396053A EP1481599A2 EP 1481599 A2 EP1481599 A2 EP 1481599A2 EP 04396053 A EP04396053 A EP 04396053A EP 04396053 A EP04396053 A EP 04396053A EP 1481599 A2 EP1481599 A2 EP 1481599A2
Authority
EP
European Patent Office
Prior art keywords
layer
undergarment
separative
moisture managing
undergarment according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP04396053A
Other languages
English (en)
French (fr)
Other versions
EP1481599A3 (de
Inventor
Marko Kallionpää
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ursuk Oy
Original Assignee
Ursuk Oy
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 Ursuk Oy filed Critical Ursuk Oy
Priority to EP04396053A priority Critical patent/EP1481599A3/de
Publication of EP1481599A2 publication Critical patent/EP1481599A2/de
Publication of EP1481599A3 publication Critical patent/EP1481599A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B9/00—Undergarments
    • A41B9/08—Combined undergarments
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41B—SHIRTS; UNDERWEAR; BABY LINEN; HANDKERCHIEFS
    • A41B2400/00—Functions or special features of shirts, underwear, baby linen or handkerchiefs not provided for in other groups of this subclass
    • A41B2400/22—Breathability, i.e. being vapour permeable and waterproof

Definitions

  • the invention relates a moisture managing undergarment, which has an inner side adapted to be towards the skin of users and an outer side adapted to be towards the inside surface of a separate outer suit. Accordingly, the undergarment is intended to be used between the body of the user persons and the outer suit, which outer suit is mainly protective or mainly responsible for protection against the environmental effects, like water, heat, cold, wind etc.
  • the publication US-5 344 698 discloses a composite textile fabric comprising a first fabric layer of a material selected from the group consisting of polyester, acrylic and nylon, which has been rendered hydrophilic in order to quickly transport urine and other body fluids therethrough, a second fabric layer for absorbing said urine and other body fluids comprising at least 5% by weight of a super absorbent fiber, and a breathable barrier layer applied to the second fabric layer having a high moisture vapor transmission rate so that moisture retained by the second layer rapidly evaporates; wherein the first fabric layer and the second fabric layer are formed integrally and concurrently by knitting a plaited construction.
  • the barrier layer provides a gating mechanism for promoting transport of urine from the first fabric layer as the water contained therein evaporates from the second fabric layer and through the barrier layer, whereupon the weight of liquid retained by the absorbent layer is slowly and continually reduced.
  • the use of a super absorbent fiber is because the fibers will absorb many times their own weight, even when under pressure and they will retain the absorbed liquid when subjected to pressure, and they swell many times as they absorb fluids and they do it faster than super absorbent powder.
  • the publication US-5 155 867 discloses a stretchable, body conformable, undergarment for the protection of the wearer from contact with external fluids, comprised of a stretchable laminated material of: a stretchable water penetration-resistant, moisture vapor permeable membrane; a hydrophilic polyurethane layer adhered to said membrane; and a stretchable knit textile fabric adhered to said hydrophilic polyurethane.
  • the undergarment is constructed such that the knit textile, preferably of cotton or polyester-cotton blend fabric, is on the inside of the undergarment.
  • the stretchable water penetration resistant, moisture vapor-permeable membrane comprises porous, expanded polytetrafluoroethylene.
  • the undergarment provide protection to the body from accidental contact with blood and other body fluids, which protection is needed by medical personnel working in non-standard environments such as emergency rooms, accident and natural disaster sites, rescure operations and the like.
  • the undergarment of the invention utilizes a combination of materials enabling to manage the moisture secreted by a person as a sweat and at least partly preserved inside a separate outer suit or outer protective garment so that the surface, which is in contact with the skin of the user person, is kept dry enough to be comfortable for long time periods.
  • the materials and their combination can be designed to provide dryness and/or feeling of dryness for required time periods, like time of performing individual tasks or other activities, because the amount of sweat and so the amount of water present can be calculated/evaluated for various situations.
  • the undergarment of the invention utilizes a combination of materials also enabling to maintain the thermal insulation properties at a high level during use, i.e. the thermal insulation of the undergarment is not seriously deteriorated because of the water originating from the sweat.
  • a moisture managing undergarment having an inner side adapted to be towards skin of users and an outer side adapted to be towards inside surface of a separate outer suit; said undergarment being made of a multilayer material, which comprises a textile fabric layer for said inner side, a separative layer, and a waterproof/breathable membrane or coating layer on top of said separative layer, the layers being attached to each other; in which undergarment said separative layer between said textile fabric layer and said waterproof/breathable membrane or coating layer is a thermally isolating material; and that said multilayer material further comprises an elastic, slip surface textile fabric layer on top of said waterproof/breathable membrane or coating layer and attached thereto for the outer side of said undergarment.
  • the thermally isolating material of the separative layer is composed of full fibers, and/or hollow fibers, and/or open cell foamed polymer, and/or closed cell foamed polymer with breathable perforations.
  • the water absorbability of this thermally isolating material shall be low, but water vapor permeability shall be high so that the sweat, i.e. water goes through the separative layer without accumulating in the thermally isolating material.
  • said textile fabric layer at the inner side is a fleece fabric of synthetic fiber(s); and said surface textile fabric layer is a tricot fabric of synthetic fibers.
  • Fleece is very comfortable material as the innermost layer against the skin of the user.
  • the tricot fabric or the like stretchable fabric with slippery surface as the outermost layer allow gliding of the outer protective suit in respect to the undergarment and also controls the water/sweat that is conveyed from the user through the innermost layer, the thermally isolating material and the water-proof/breathable membrane or coating, and is in many applications - depending on the breathing properties of the outer suit and depending on environmental conditions like temperature - at least partly condensed on the inside of the outer suit, i.e. between the undergarment and the outer suit.
  • a moisture managing undergarment 10 has an inner side 2 adapted to be towards skin 20 of the users, and an outer side 3 adapted to be towards inside surface of a separate outer suit 4. It is suggested that persons using the undergarment of this invention does not wear additional underclothes between their skin 20 and the undergarment 10, but such underclothes, if thin material and without special isolation or absorption properties, can be used if wanted. E.g. underclothes of thin synthetic fabrics typical in everyday use hardly cause adverse effects on the function of moisture managing undergarment 10 of this invention.
  • the moisture managing undergarment 10 is intended and designed to be used under an outer garment or suit 4, which is at least liquid-tight or possibly vapor-tight or even gas tight, but nothing prohibits using it under any other type of outer suit 4, or alone without any outer garment.
  • the undergarment 10 is preferably either an one part garment, like that shown in Fig. 1, or a two part garment like trousers and blouse, and it can have shorter legs and/or sleeves, instead of normal long legs and sleeves, if especially wanted, whereupon some of the properties may be lost.
  • fiber is also used to mean “thread” and "yarn” and “filament", because it is evident that materials disclosed can be prepared utilizing any of these.
  • the undergarment 10 is made of a multilayer material, which comprises a textile fabric layer 5 for the inner side 2, which should be in contact with the skin 20 of the person wearing or using the undergarment, as explained above.
  • the multilayer material also comprises a separative layer 6, which is explained later in detail, and a waterproof/breathable membrane or coating layer 7 on top of said separative layer.
  • the different layers are attached to each other, whereupon they form the multilayer material.
  • the waterproof/breathable membrane or coating layer 7 is either a microporous membrane, or an intermolecular permeable membrane, or alternatively a microporous or an intermolecular permeable film resulting from the coating.
  • Microporous membranes are typically made of expanded polytetrafluorethylene (PTFE) with very small physical pores for permeability of water vapor and non-permeability of liquid water, whereas the intermolecular permeable membranes are made of e.g. a type of polyester providing molecular level structure for non-permeability of liquid water and permeability of water vapor.
  • PTFE expanded polytetrafluorethylene
  • the intermolecular permeable membranes are made of e.g. a type of polyester providing molecular level structure for non-permeability of liquid water and permeability of water vapor.
  • Membranes or coated films can be also made from polyurethane and other polymers.
  • Membranes or films with these non-permeability and permeability qualities having hydrophilic properties in one embodiment, or polar and hydrophobic properties in another embodiment are considered to belong to the group of intermolecular permeable membranes or films.
  • the important physical properties of these membranes and films are Water Vapor Diffusion Resistance or Water vapor Flux (g/m 2 ⁇ 24h), and Water Proof Rate (mm H 2 O) or Waterproofness (kN/m 2 ).
  • the thickness of the membranes and films are typically in the order of 0.01 mm to 0.05 mm, but the above mentioned important physical properties are decisive not the thickness. These materials are available under e.g.
  • the Water Proof Rate shall be over 800 mm H 2 O, or preferably at least 1500 mm H 2 O, or typically at least 2500 mm H 2 O.
  • Water vapor Flux shall be at least 200 g/m 2 ⁇ 24h, or preferably at least 400 g/m 2 ⁇ 24h, or typically at least 600 g/m 2 ⁇ 24h. Coatings that increase solely the contact angle of the water on textile are not believed to be effective because of low Water Proof Rate, but contact angle increasing treatment can be added to membranes or films described above, if it does not worsen their other properties.
  • the textile fabric layer 5 at the inner side 2 is a fleece fabric 5' of synthetic fiber(s).
  • Fleece is an established definition and means a fabric with at least one deep, soft, napped surface, i.e. pile textured surface.
  • the difference between fleece, velour and velvet is somewhat vague, many times depending only on person(s) utilizing the word. In general the fleece has lowest cut pile and the velvet longest cut pile, but this is not very important though a shorter cut is preferred.
  • the fuzzy ends of the pile fibers in fleece attained e.g. by brushing, makes that the fleece fabric 5' is the preferred variant for textile fabric layer 5. It is anyway possible to use velour or velvet as well for textile fabric layer 5 instead of fleece, but with a slightly lower comfort to the users.
  • the fabrics can be either woven or knit construction.
  • the first surface 5.1 of the fleece fabric 5' which surface 5.1 is to be formed the inner side 2 of the undergarment and against the skin 20, is the pile-textured surface or pile-textured side.
  • the second surface 5.2 of said two opposite surfaces of said fleece fabric 5' is a smooth finished surface to be attached to the separative layer 6.
  • fleece with two opposite piled textured surfaces can be used, but at the moment it is believed that the attaching to the separative layer 6 may cause difficulties.
  • the surface weight of textile fabric layer 5, i.e. fleece fabric 5' is at minimum 15 g/m 2 and at maximum 150 g/m 2 , and preferably between 25 g/m 2 and 100 g/m 2 .
  • the separative layer 6 between the waterproof/breathable membrane or coating layer 7 and the textile fabric layer 5, as described above, is a thermally isolating material 6', i.e. a material with low thermal conductivity.
  • the thermally isolating material 6' of the separative layer 6 is a porous and flexible material, where the porosity means spaces between the fibers or walls of the cells.
  • the thermally isolating material 6' has a total volume V M defined by the outlines of the separative layer 6 and a porosity volume V P constituted by said spaces between the fibers or walls of the cells.
  • the thermally isolating material 6' of the separative layer 6 is composed of full fibers, and/or hollow fibers, and/or open cell foamed polymer, and/or closed cell foamed polymer with breathable perforations.
  • the material thereof is typically polyester.
  • These kinds of fibers as such and different sheets of these fibers are commercially available, and accordingly, their materials are not explained in detail.
  • the fibers are arranged in different configurations in respect to each other, either in woven fashion, or non-woven fashion, or partly woven partly non-woven fashion.
  • Various additional means like adhesives can be used so that the fibers are permanently attached to each other. Independent of the layout and attaching of the fibers they form e.g. sheet material with the total volume V M and the porosity volume Vp, which sheet material being the thermally isolating material 6' for attaining the separative layer 6.
  • These fiber materials are available under e.g.
  • the moisture managing undergarment 10 of the invention has been tested using Finnfill® as the thermally isolating material 6', in which mentioned material fibers - i.e. filling - are arranged to form a two sided pile structure and an about centrally positioned carrier structure for said pile structure.
  • the thermally isolating material 6' has a mean density at maximum 200 kg/m 3 , but preferably a mean density at maximum 100 kg/m 3 , when measured in a non-compressed state.
  • the Finnfill® material that was included in the moisture managing undergarment 10 has an area weight of 150 g/m 2 and thickness in the order of 5 mm and the thermal insulation was in the order of 2 clo.
  • "Clo" is the established unit for relative thermal insulation, and 1 clo is 0.155 m ⁇ m 2 ⁇ K/W. This material does not lose its properties during repeated washings of the undergarment, which is also very important property, making this mentioned thermally isolating material 6' part of the preferred embodiment of the invention.
  • the separative layer 6 has a thickness S at minimum 3 mm, and at maximum 20 mm, and typically the thickness S is between 4 - 10 mm, all values in a non-compressed state.
  • the thermally isolating material 6' of the separative layer 6 is composed of a flexible open-cell foamed polymer, also called cellular plastic.
  • a flexible open-cell foamed polymer also called cellular plastic.
  • These polymers can be flexible polyurethane foam, latex foam rubber, cellular rubber or flexible cellular polyvinyl chloride, which are also commercially available under different brands and trademarks. Accordingly, they are not described in detail.
  • the Fraction Open Cells has a high value meaning that a large portion of the cells are interconnected by gas phase, i.e. air, the isolating material 6' behaves like those based on fibers.
  • the thermally isolating material 6' is a flexible closed-cell foamed polymer with low value of Fraction Open Cells, in which case this separative layer 6 must have separately provided with breathable perforations. These perforations can be small holes or slits extending through the separative layer 6.
  • the thermally isolating material 6' of the separative layer 6 has also a mean density at maximum 200 kg/m 3 , or preferably at maximum 100 kg/m 3 , in a non-compressed state.
  • the separative layer 6 has a thickness S at minimum 3 mm, and at maximum 20 mm, and typically the thickness S is between 4 - 10 mm, all values in a non-compressed state.
  • the thermally isolating material 6' is especially without super absorbent material(s). This is because materials containing super absorbents loose their thermal isolation properties when they absorb water. Super absorbents absorb water more than their initial volume and weight. Contrary to super absorbents the thermally isolating material 6' used in the moisture managing undergarment 10 has a water absorption at maximum equal to said total volume V M , or typically at maximum equal to said porosity volume V P , or preferably smaller than said porosity volume V P . This amount of absorption is reality for the thermally isolating materials 6' described above only if totally immersed in water.
  • the water absorption is substantially smaller, perhaps at maximum 5%, or at maximum 10%, or smaller than 20% of the initial weight of thermally isolating material 6'. It is also possible to mix or otherwise combine the above disclosed fiber type material and the above disclosed cell type polymer.
  • the multilayer material further comprises stretchable or elastic, slip surface textile fabric layer 8 on top of the waterproof/breathable membrane or coating layer 7 and attached thereto for the outer side 3 of the undergarment 10.
  • This surface textile fabric layer 8 is preferably a tricot fabric 8' of synthetic fibers.
  • the tricot is a warp knit fabric with the fiber loops connected vertically in respect to the fabric sheet, and the opposite sides are different. Warp knit fabrics with other names as tricot can be utilized as well. It is easy to get the one of the tricot fabric surfaces a smooth finish, which is slippery, i.e. have a low friction in respect to at least to the underside 21 of the intended separate outer suit 4.
  • tricot is also elastic, i.e. it can be stretched in directions parallel to the fabric sheet.
  • the tricot, or other respective fabric 8' of the surface textile fabric layer 8 has a surface weight at minimum 80 g/m 2 to attain necessary strength.
  • the surface weight of the tricot, or other respective fabric 8' is at maximum 300 g/m 2 for avoiding excessive weight of the undergarment 10. It may be practical to use a heavier and thicker tricot for applications, in which the wearing time of the undergarment 10 is known to be very long, e.g.
  • the tricot or other respective fabric 8' controls the movement of the water possibly condensed between the waterproof/breathable membrane or coating layer 7 and the underside 21 of the separate outer suit 4, while allowing mutual gliding of the undergarment 10 and outer suit 4.
  • the synthetic fibers/yarns of the fabric 8' has smooth or even surface without any brushing or the like.
  • the synthetic fibers or yarns used for preparation of the tricot, or the respective fabric 8' is preferably polyester or nylon. Other synthetic fibers known as such or new may also be useful.
  • the synthetic fibers described above for layer materials of the invention has the advantage that the fiber material itself does not substantially soak up water, contrary to natural fibers.
  • the textile fabric layer 5 for said inner side 2, the separative layer 6 being of thermally isolating material, the waterproof/breathable membrane or coating layer 7, and the stretchable, slip surface textile fabric layer 8 for said outer side 3 are attached to each other forming a uniform multilayer laminate 1.
  • This attaching of said layers 5 and 6 and 7 and 8 of the laminate 1 is made by adhesives 11, 12, 13 spread between material sheets of said layers prior to preparing said undergarment 10.
  • the adhesives and lamination methods for producing moisture managing undergarment 10 of the invention shall be selected so that the layers 5 and 6 and 7 and 8 of the laminate 1 are securely attached also during the use of the undergarment, but the transportation of water vapor therethrough the laminate is not prohibited. Accordingly, any known or new lamination material and/or lamination method suitable for the purpose can be utilized.
  • the undergarment 10 of the invention is made from a ready made laminated multilayer material 1 with the layers 5 and 6 and 7 and 8 using any practical production technology.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
EP04396053A 2004-08-04 2004-08-04 Feuchtigskeistregelnde Unterbekleidung Withdrawn EP1481599A3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04396053A EP1481599A3 (de) 2004-08-04 2004-08-04 Feuchtigskeistregelnde Unterbekleidung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04396053A EP1481599A3 (de) 2004-08-04 2004-08-04 Feuchtigskeistregelnde Unterbekleidung

Publications (2)

Publication Number Publication Date
EP1481599A2 true EP1481599A2 (de) 2004-12-01
EP1481599A3 EP1481599A3 (de) 2005-03-09

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EP04396053A Withdrawn EP1481599A3 (de) 2004-08-04 2004-08-04 Feuchtigskeistregelnde Unterbekleidung

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2496174A (en) * 2011-11-04 2013-05-08 Tracey Trotter Post exercise suit
EP2611605A2 (de) * 2010-09-03 2013-07-10 Transhield Technology As Dampfdurchlässige faserkonstrukte
IT201900010911A1 (it) * 2019-07-04 2021-01-04 Lorenzi S R L Materiale composito multistrato impermeabile e traspirante e relativo metodo di produzione

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155867A (en) * 1991-05-23 1992-10-20 W. L. Gore & Associates, Inc. Protective undergarment
US5306536A (en) * 1991-11-12 1994-04-26 Moretz Herbert L Multi-layer moisture management fabric and garments incorporating a moisture management panel
EP0599587A1 (de) * 1992-11-24 1994-06-01 Malden Mills Industries, Inc. Verbundstoff für unterwäsche
FR2831772A1 (fr) * 2001-11-07 2003-05-09 Kermel Complexe textile pour isolation thermique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155867A (en) * 1991-05-23 1992-10-20 W. L. Gore & Associates, Inc. Protective undergarment
US5306536A (en) * 1991-11-12 1994-04-26 Moretz Herbert L Multi-layer moisture management fabric and garments incorporating a moisture management panel
EP0599587A1 (de) * 1992-11-24 1994-06-01 Malden Mills Industries, Inc. Verbundstoff für unterwäsche
FR2831772A1 (fr) * 2001-11-07 2003-05-09 Kermel Complexe textile pour isolation thermique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2611605A2 (de) * 2010-09-03 2013-07-10 Transhield Technology As Dampfdurchlässige faserkonstrukte
EP2611605A4 (de) * 2010-09-03 2014-07-16 Transhield Technology As Dampfdurchlässige faserkonstrukte
GB2496174A (en) * 2011-11-04 2013-05-08 Tracey Trotter Post exercise suit
IT201900010911A1 (it) * 2019-07-04 2021-01-04 Lorenzi S R L Materiale composito multistrato impermeabile e traspirante e relativo metodo di produzione
EP3760430A1 (de) * 2019-07-04 2021-01-06 Lorenzi S.r.l. Mehrlagiges verbundmaterial enthaltend eine undurchlässige schicht und entsprechendes herstellungsverfahren

Also Published As

Publication number Publication date
EP1481599A3 (de) 2005-03-09

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