JP2953258B2 - Manufacturing method of laminate and information cloth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate of a fabric on which an image is formed with an ink containing a dye as a main component, and more particularly, it can be used as a label to be attached to clothes or the like, and The present invention relates to a laminate for providing a fabric on which an image having excellent washing resistance is formed.

[0002]

2. Description of the Related Art A transfer printing method using a dye is conventionally known in order to obtain a fabric on which an image having good fastness such as friction and washing is formed. In addition, as a method having flexibility and immediate printability, an ink jet dyeing method, a thermal transfer dyeing method, and the like are known.

[0003]

However, the transfer printing method is,
Since it is necessary to prepare an original for each sheet, it is difficult to cope with a small amount of other types and to have immediate printability. In addition, in the process, heat after printing, dye fixing step by chemicals and the like and excess dye,
There is a problem that a step of removing the glue material or the like is required, and it is difficult to obtain a fabric on which an image is formed easily.

[0004] Ink-jet dyeing and thermal transfer dyeing methods have simplicity such as versatility and instant printability. However, dyes which form temporary images by heat treatment, steam treatment, etc. are permeated and diffused into the interior of the fabric to dye. And a step of removing excess dye by reduction washing or the like. In particular, since the removal of excess dye is a wet process, there is a problem in the immediate availability of the fabric on which an image is formed.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object of the present invention is to provide a laminate capable of easily providing an image having excellent washing resistance.

[0006]

The above object of the present invention can be achieved by the following constitution. That is, the laminate of the present invention is a laminate obtained by laminating a sheet-shaped dye absorber so as to cover at least the entire image forming portion on a cloth on which an image is temporarily formed with an ink mainly containing a dye. The dye absorber is characterized in that it is laminated with an adhesive that can be peeled off from the fabric at least after applying heat, and the method for producing an information fabric of the present invention further comprises: In a laminate in which a sheet-shaped dye absorber is laminated so as to cover at least the entire image forming portion on a cloth on which an image is temporarily formed by ink as a main component, the sheet-shaped dye absorber is
At least after applying heat, the laminated body laminated with an adhesive that can be peeled off from the cloth is heat-treated, and after dyeing an image, the sheet-shaped dye absorber is peeled off from the cloth. It is.

[0007]

The image referred to in the present invention is not particularly limited.
Characters, pictures, symbols, identification marks, etc. particularly mean information images.

[0008] In the present invention, the information cloth is a character, a picture,
It refers to a cloth on which an information image such as a symbol or an identification mark and information that can be recognized as meaningful by humans or machines are recorded.

The dye used in the present invention is not particularly limited, such as a disperse dye and a basic dye. However, it is preferable to use a dye having high sublimation fastness. Specifically, the dye is sublimable and has a sublimation temperature of 180 ° C. Not less than 300 ° C, preferably not more than 200 ° C.
It is good that it is more than 250 ° C below ° C. Sublimation temperature is 180
When the temperature is lower than 0 ° C, the fastness of the printed image is deteriorated. When the temperature is higher than 300 ° C, the dyeing to the cloth is not sufficiently performed, which is not preferable. In the present invention, the sublimation temperature refers to a temperature at which the vapor pressure (sublimation pressure) of the sublimable dye is equal to the external pressure.

The method for temporarily forming an image in the present invention is not particularly limited, and any method can be used as long as it is a method such as ink-jet dyeing or thermal transfer dyeing, which is a method of dyeing by heating after forming a temporary image.

The fabric used in the present invention is not particularly limited, and a woven fabric, a knitted fabric, and a nonwoven fabric made of natural fibers such as cotton and silk, and synthetic fibers such as polyamide and polyester are used. Woven fabrics are preferred from the point of view,
In addition, polyester fibers, particularly a single fiber degree of 0.000
A cloth mainly composed of ultrafine fibers of 1 denier or more and 1 denier or less is preferable because it has excellent planar smoothness and a very clear image can be obtained during printing. Further, a fabric in which two kinds of ultrafine fibers of a polyamide fiber and a polyester fiber are well mixed is preferable because it has a dense surface and, consequently, a surface excellent in smoothness. It is also a preferable method to apply a high-speed fluid flow treatment (water jet punch) to the surface of the ultrafine fabric to open and / or entangle the ultrafine fibers to densify the surface. The method for producing these ultrafine fibers is not particularly limited, and various ordinary techniques can be used.

In the present invention, it is preferable that at least the surface of the cloth on which an image is formed is subjected to a smoothing process, since the sharpness of the image at the time of forming the temporary image can be obtained. In particular, when an image is formed by a thermal transfer method, it is preferable that the image is smoothed.
The surface smoothness of the fabric is such that the smooth surface has a surface roughness of less than 3 μm in center line average roughness (Ra) and / or less than 10 μm in maximum height (Rt), and / or substantially The Beck smoothness is preferably 30 seconds or more.
More preferably, the Ra of the smooth surface is less than 1 μm, and / or the Rt is less than 5 μm, and / or the Beck smoothness is substantially 50 seconds or more. Is less than 0.5 μm,
And / or Rt is less than 3 μm and / or substantially Beck smoothness is 100 seconds or more.

Here, the surface roughness is measured according to JIS B0601.
Is based on the definition and display of
It is based on JIS P8119. The method of the smoothing treatment is not particularly limited, and examples thereof include a method of calendering or pressing the fabric at a temperature of 140 ° C. or more and 239 ° C. or less and a pressure of 5 kg / cm ² or more and 100 kg / cm ² or less. In particular, a method of calendering with a metal roll and a plastic or paper roll is a preferable method because the cloth can be continuously treated. It is preferable that the ultrafine fiber cloth is calendered because a smoother cloth surface can be obtained.

The identification mark referred to in the present invention is a symbol encoded by a bar code, a two-dimensional code, OCR, or the like, and can be read by an arbitrary reading device corresponding to these codes by an optical or other method. The standard is not particularly limited.

The sheet-shaped dye absorber used in the present invention is not particularly limited as long as it has a high affinity for the dye to be used and easily absorbs the dye.
Fabrics such as woven fabrics and nonwoven fabrics are used, and paper is preferred from the viewpoint of dyeing efficiency, and polymer films are preferred from the viewpoint of adhesion to fabrics. In addition, a transparent sheet is preferable because a provisional image can be confirmed.

The thickness of the sheet-shaped dye absorber in the present invention is not particularly limited, but is preferably 1 μm or more and 1 mm or less, more preferably 10 μm or more and 500 μm or less. If it is less than 1 μm, the sheet is not stiff and the dye absorption is insufficient, and if it is more than 1 mm, heat conduction at the time of color development is poor and the cost is high, which is not preferable.

In the present invention, when laminating the sheet-like dye absorber on the cloth on which the temporary image is formed, it is important to laminate so as to cover at least the entire image forming portion. In the laminate of the present invention, by performing a heat treatment, the dye forming a temporary image in the laminate is permeated into the fibers constituting the fabric, diffused and dyeed, and by removing excess dye, An information cloth on which an image having excellent fastness such as washing resistance is formed can be obtained. If the sheet-shaped dye absorber does not cover a part of the image forming portion, it is not preferable because the dyeing at the portion and removal of excess dye are not sufficiently performed, and the fastness such as washing resistance is deteriorated.

In the laminate of the present invention, it is important that the sheet-shaped dye absorber can be peeled off from the fabric at least after heat is applied to the laminate. The sheet-shaped dye absorber must be laminated on the fabric in the step of dyeing an image on the fabric of the laminate, but after performing the heat treatment, the sheet-shaped dye absorber is peeled off to form an information fabric. It is used. That is, it is necessary that the sheet-shaped dye absorber can be peeled off from the fabric at least after the dyeing is completed by performing the heat treatment.

That is, the laminate of the present invention is obtained by laminating a sheet-like dye absorber and a cloth via an adhesive, and the adhesive used here is a sheet-like dye absorber from the cloth after heat treatment. It is preferable to use a material which can be peeled off, and further, a material which does not leave an adhesive on the fabric, and which has a sublimation property at a heat treatment temperature, and a material which cures at a heat treatment temperature, such as a temporary adhesive or a pressure-sensitive adhesive. Can be. In particular, when the temporary adhesive is coated on the sheet-shaped dye absorber, the adhesive does not remain on the fabric after being peeled off from the fabric, and the release paper or the like is unnecessary when pre-coating the sheet-shaped dye absorber. It is preferably used. Such temporary adhesives and pressure-sensitive adhesives may be used alone or in combination of synthetic rubbers such as polychloroprene, nitrile rubber, acrylic rubber, styrene-butadiene copolymer rubber, recycled rubber, and natural rubber. Rubber-based adhesives or pressure-sensitive adhesives can be used, but are not limited thereto, depending on the fabric or dye used, polyester-based,
A pressure-sensitive adhesive or adhesive such as a polyamide-based or acrylic-based adhesive can also be used as appropriate.

In the present invention, when the sheet-like dye absorber and the fabric are laminated via an adhesive as described above, if the sheet-like dye absorber and the fabric are partially adhered, the laminate is heat-treated. This is preferable because the sheet-shaped dye absorber can be easily peeled off later.

In the present invention, a heat-sealing resin layer can be laminated on the surface opposite to the image forming surface of the fabric. in this case,
This is preferable because it can be easily attached to clothes or the like by an iron, a press, or the like. Further, when the heat-sealing resin layer is laminated so as to substantially cover the entire surface of the fabric,
It is difficult to peel off and is preferable from the viewpoint of durability. It is preferable to use a sheet-like heat-sealing adhesive as the heat-sealing resin layer, because the heat-sealing resin layer can be easily laminated with a fabric by hot pressing, heat calendering, fusion cutting, or the like. Further, by laminating the cloth and the sheet-like heat-fusing adhesive and cutting it by heat, or performing a heat calendering process with an embossing roll, the cloth and the sheet-like heat-fusing adhesive are partially laminated to clothes and the like. This is preferable because the adhesiveness when stuck on the substrate is stabilized.

The heat-sealing resin used in the present invention is not particularly limited as long as it has thermoplasticity at the bonding temperature, and a polyester resin, a polyamide resin, a vinyl chloride resin or the like is used. In particular, polyester resin-based resins are preferable because they are excellent in the washing resistance of bonding.

In the present invention, the heat treatment method for the laminate is not particularly limited, and examples thereof include a steam heat treatment with steam or the like, a hot air treatment with an oven or the like, and a dry heat treatment with a heat roller or a hot press. A method of directly heating by a hot press is preferable because dyeing and the like are more effectively performed. Conditions such as a heating temperature and a heating time are appropriately determined depending on a dye, a cloth, and the like to be used. In addition, a method in which a laminate having a heat-fusible resin layer is overlaid on clothes or the like and heated with a hot press or the like is preferable because it can be attached to clothes and the like simultaneously with dyeing.

Next, an example of the laminate of the present invention will be described with reference to the drawings, but it is needless to say that the present invention is not limited thereto.

FIG. 1 is a diagram showing an example of the laminate of the present invention as viewed from the sheet dye absorber surface side. In FIG. 1, a sheet-shaped dye absorber 1 is laminated on a cloth 3 on which a temporary image 2 is formed.

FIG. 2 is a sectional view when the laminate of FIG. 1 is cut along the line aa. In FIG. 2, the cloth 3 and the sheet-shaped dye absorber 1 are partially adhered via a temporary adhesive 4 and are laminated.

FIG. 3 is a sectional view of another example of the laminate of the present invention. In FIG. 3, a sheet-like heat-sealing adhesive 5 is laminated on the surface of the fabric 1 opposite to the temporary image forming surface.

FIG. 4 is a schematic view of an example of an apparatus for producing the laminate of the present invention. In FIG. 4, after forming an image on the fabric tape roll 6 by the thermal transfer head 8, the sheet-shaped dye absorber is laminated by the laminating roll 11,
Cut with a cutter 13 to obtain a label-like laminate. Of course, a wide laminate can be obtained by changing the width of the fabric tape.

[0029]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples.

Example 1 A high-density woven fabric made of ultrafine polyester filament fibers of 0.06 denier was subjected to water jet punching and then calendered to obtain a dense fabric with a smooth surface. Next, a barcode was printed with an ink mainly composed of a disperse dye (CI Desperse Blue 207) by a thermal transfer method to form a temporary image of the barcode. A polyester film having a thickness of 180 μm was laminated on the provisional image forming surface of this cloth, and cut into a label size to obtain a laminate. At this time, only one side of the polyester film and the fabric were fixed with an adhesive. The obtained laminate was subjected to a hot press treatment at 180 ° C. for 1 minute.

Thereafter, the polyester film could be easily peeled off and the obtained bar code image had good washing fastness.

Example 2 A cloth on which a temporary image was formed in the same manner as in Example 1 was laminated on a polyester-based heat-bonding film with the temporary image forming surface facing up, and a polyester film was further laminated thereon, and the label size was changed. To obtain a laminate. The obtained laminate was placed on a cotton cloth with the heat-adhesive film facing down, and subjected to a hot press treatment at 180 ° C. for 30 seconds.

Thereafter, the polyester film could be easily peeled off, the adhesion between the cotton cloth and the label was sufficiently resistant to washing, and the washing fastness of the obtained dyed bar code image was good.

[0034]

According to the present invention, it is possible to remove excess dye at the same time as dyeing at the time of thermal coloring, and to easily obtain an information cloth excellent in washing fastness by dyeing.
Further, by providing a heat-sealing resin layer on the surface of the cloth opposite to the image forming cotton, it is possible to simultaneously adhere to the clothes and the like at the same time as dyeing.

[Brief description of the drawings]

FIG. 1 is an example of a laminate of the present invention.

FIG. 2 is a cross-sectional view of an example of the laminate of the present invention.

FIG. 3 is a cross-sectional view of another example of the laminate of the present invention.

FIG. 4 is a schematic view of an example of an apparatus for producing a laminate of the present invention.

[Explanation of symbols]

 1: Sheet-shaped dye absorber 2: Temporary image 3: Fabric 4: Temporary adhesive 5: Sheet-like heat-sealing adhesive 6: Fabric tape roll 7: Dye thermal transfer ribbon roll 8: Thermal transfer head 9: Winding roll 10: Dye-absorbing sheet roll 11: Laminate roll 12: Cutter 13: Label-like laminate

Claims (8)

(57) [Claims] 1. A laminate comprising a sheet-like dye absorber laminated on a cloth on which an image is temporarily formed with an ink mainly containing a dye so as to cover at least the entire image forming portion. A laminated body characterized in that the laminated body is laminated with an adhesive which can be peeled off from the cloth at least after heat is applied. 2. The laminate according to claim 1, wherein a heat-sealing resin layer is laminated on the surface of the fabric opposite to the image forming surface so as to cover substantially the entire surface of the fabric. 3. The laminate according to claim 1, wherein the sheet-shaped dye absorber and the fabric are partially adhered with an adhesive. 4. The laminate according to claim 2, wherein the heat-sealing resin layer is a sheet heat-sealing adhesive. 5. The laminate according to claim 1, wherein the fibers constituting the fabric are mainly composed of ultrafine fibers having a degree of single fiber of not less than 0.001 denier and less than 1 denier. 6. The laminate according to claim 1, wherein at least an image forming surface of the fabric has been subjected to a smoothing treatment. 7. The laminate according to claim 1, wherein the image is information. 8. A laminate in which a sheet-shaped dye absorber is laminated on a cloth on which an image is temporarily formed with an ink containing a dye as a main component so as to cover at least the entire image forming portion. Heat-treating a laminated body laminated with an adhesive which can be peeled off from the cloth at least after heat is applied, and after dyeing an image, the sheet-shaped dye absorber is peeled off from the cloth. Manufacturing method of information cloth.