JP2019206157A - Thin line display transfer film for fiber product - Google Patents

Abstract

To provide a thin line display transfer film for fiber products that is excellent in transfer property, adhesion, and elasticity.SOLUTION: The thin line display transfer film for fiber products is used to transfer laundry symbols and/or quality indication to a fabric product, and has an ink layer and a hot-melt adhesive layer laminated thereon. The ink layer contains polyurethane, and the hot-melt adhesive layer contains phthalic acid polyester and caprolactone ester urethane.SELECTED DRAWING: Figure 1

Description

The present invention relates to a fine line display transfer film for textile products.

A so-called washing label tag is sewn on conventional textiles such as clothing, bedding, and towels. This washing label has a washing label indicating a handling method such as washing based on the regulations of JIS L 0001, the name and mass ratio of the fibers used, the name and address of the manufacturer, etc. The quality indication that displays is described.

However, when the washing label tag touches the skin, the skin may be stressed or uncomfortable. For this reason, a method of eliminating the washing label and transferring the washing label and the quality label to the textile product instead has been studied.

Examples of documents disclosing the prior art related to transfer to a textile product include Patent Documents 1 to 4.

In Patent Document 1, a top layer rich in stretch elasticity composed of an amino acid-based polyether urethane and a pigment is provided in an arbitrary pattern shape on the release treatment surface of a heat-resistant base sheet, and a one-part type is provided on the top layer. There is disclosed a transfer sheet characterized in that a hot-melt adhesive layer made of polyurethane adhesive and rich in stretch elasticity is provided so as to cover the top layer. In Patent Document 1, a top layer rich in stretch elasticity composed of an amino acid-based polyether urethane and a pigment is provided in an arbitrary pattern on the release treatment surface of the heat-resistant base sheet, and two layers are formed on the top layer. It is composed of a liquid polyurethane adhesive, and an amount of isocyanate curing agent is 30% or less of the isocyanate equivalent, and a hot-melt adhesive layer rich in stretch elasticity is provided so as to cover the top layer. A featured transfer sheet is disclosed.

Patent Document 2 includes a base sheet that is peeled off after transfer, a pattern layer for forming a pattern on a transfer target portion of an object, and a hot-melt adhesive layer mainly composed of a resin in this order. The adhesive layer is heated while being pressed against the transfer target portion having flexibility and / or stretchability in the object, whereby the adhesive layer is thermally fused to the transfer target portion, A thermal transfer sheet for transferring a pattern, wherein the peripheral portion of the adhesive layer is formed so as to protrude from the peripheral portion of the pattern layer, and protrudes from the peripheral portion of the pattern when transferred to the transfer target portion. Disclosed is a thermal transfer sheet that forms a protruding edge, wherein all of the adhesive layer or a portion including a peripheral edge forming the protruding edge is colored with a colorant. That.

Patent Document 3 discloses a transfer label that can be thermally transferred to a flexible transfer material by having flexibility, a surface slip layer containing at least a fluorine-based resin and an isocyanate resin on a base sheet, A layer and an adhesive layer are provided in sequence. When thermal transfer is performed to a flexible material to be transferred, the surface slip layer and the design layer are fused from the base sheet to the material to be transferred. A transfer label having the property is disclosed. Patent Document 3 uses a base sheet in which an effect layer containing a polyurethane foam resin and a release layer containing an isocyanate resin are laminated on a base sheet, and the effect layer has an appropriate plane pattern. At least a surface slip layer, a design layer, and an adhesive layer are sequentially provided on the surface, and when heat transfer to a flexible material to be transferred, the effect layer foams and rises, resulting in an uneven pattern on the surface of the surface slip layer. In addition, there is disclosed a transfer label having surface slipperiness due to the presence of a surface slip layer in which an uneven pattern is formed by fusing the surface slip layer and the design layer from a base sheet to a transfer material. Further, in Patent Document 3, heat transfer to clothing is possible due to flexibility, and a surface slip layer containing at least a fluorine-based resin and an isocyanate resin, a design layer, and an adhesive layer are sequentially provided on a base sheet. When heat transfer is performed to a predetermined portion of the garment using the label, the surface slip layer and the design layer are fused from the base sheet to the predetermined portion of the garment, whereby the garment has surface slip and antifouling properties due to the presence of the surface slip layer. A protective sheet is disclosed.

In Patent Document 4, a plurality of printed marks formed in an arbitrary shape of various colors on a roll-shaped plastic base film wound in multiple turns are sequentially and repeatedly applied to various transferred objects including fabrics made of fibers or leather. A print mark transfer system for a roll-shaped transfer film that thermally transfers to a pair of first guide rollers that transfer and guide the roll-shaped transfer film that can be drawn and unwound by a drawing means and a rewinding means in a horizontal direction. And a second guide roller, and a pressure between the first guide roller and the second guide roller so as to be movable up and down, and applying pressure to the roll-shaped transfer film and the transfer object from above and having a heating function A pressing unit that is a heating unit, and a pressing surface that covers an outer shape of the print mark projects downward; and A transfer table on which a transferred material is placed and receives a pressing force opposite to the pressing surface of the press unit; and a position sensor for detecting a positioning mark provided between each adjacent print mark on the roll-shaped transfer film; , Using a continuous transfer machine having a position of 1 and a position of the print mark of the roll-shaped transfer film sequentially transferred via the position sensor and the positioning mark. A print mark transfer system for a roll-shaped transfer film is disclosed in which the print mark is continuously transferred to a transfer object repeatedly placed one by one.

JP-A-8-92881 JP 2010-188591 A Japanese Patent No. 5587000 International Publication No. 2014/084104

By the way, the washing display and the quality display include many characters and symbols drawn with fine fine lines within a relatively small range, unlike the decorative patterns and characters. For this reason, in order to establish a transfer technology for washing display and quality display, it has been required to prevent disconnection and bleeding of fine lines. In addition, since textile products such as clothing are generally stretchable assuming wearing, etc., it is required to follow the expansion and contraction of textile products such as clothing and to have high adhesion. It was. From the above, there has been a demand for a fine line display transfer film for textiles excellent in transferability, adhesion and stretchability, but there has been no fine line display transfer film for textiles satisfying all these characteristics.

This invention is made | formed in view of the said present condition, and aims at providing the fine line display transfer film for textiles excellent in transferability, adhesiveness, and a stretching property.

This inventor paid attention to the fine line display transfer film for textiles used in order to transcribe a washing indication and / or quality indication to textiles, and examined various methods for improving transfer nature, adhesion nature, and elasticity. As a result, the inventors have found that by optimizing the composition of the ink layer and the hot melt adhesive layer, the transferability and adhesion can be improved while the stretchability can be remarkably improved, and the present invention has been completed. .

The fine line display transfer film for textiles of the present invention is a thin line display transfer film for textiles used for transferring a washing display and / or quality display to a textile product, and an ink layer and a hot melt adhesive layer are laminated. The ink layer contains polyurethane, and the hot melt adhesive layer contains a phthalic polyester and a caprolactone ester urethane. In this specification, “film” is synonymous with “sheet”, and the two are not distinguished by thickness.

The ink layer and the hot melt adhesive layer preferably have an elongation after thermal transfer of 200% or more. The fine line display transfer film for textiles of the present invention may have a first release layer on the surface on the hot melt adhesive layer side, and a second release layer on the surface on the ink layer side. You may have.

ADVANTAGE OF THE INVENTION According to this invention, the fine line display transfer film for textiles excellent in transferability, adhesiveness, and a stretching property is realizable.

It is sectional drawing which showed typically an example of the thin wire | line display transfer film for textiles of this invention. It is explanatory drawing which showed the test method of elasticity.

FIG. 1 is a cross-sectional view schematically showing an example of the fine line display transfer film for textiles of the present invention. The fine line display transfer film for textiles shown in FIG. 1 has a structure in which an ink layer 11, a hot melt adhesive layer 12, and a first release layer 13 are laminated in order.

[Ink layer]
The ink layer 11 contains polyurethane. By containing polyurethane, a material having good texture (softness) and stretchability after being bonded to the base fabric can be obtained. In addition, the washing display and quality display drawn by the ink layer 11 are different from decorative patterns and characters, and include a large number of characters and symbols drawn by thin lines within a relatively small range. The width is, for example, 0.15 to 0.35 mm. On the other hand, when the ink layer 11 containing polyurethane is formed by a method such as screen printing, the occurrence of disconnection or bleeding can be suppressed, and excellent printability (drawability) can be obtained. It is something that can be done. Therefore, according to the ink layer 11 containing polyurethane, clear drawing with fine lines is possible, which is suitable for washing display and quality display.

Examples of the polyurethane include polyester polyurethane, polyether polyurethane, and polycarbonate polyurethane. In addition, polyester-based polyurethane and polyether-based polyurethane are preferable in terms of softness and stretchability after being bonded to the base fabric.

The polyester-based polyurethane is obtained by reacting with a polyisocyanate using a polyester polyol as one of the polyols which are main components of the polyurethane.

The polyester polyols can be obtained, for example, by reacting dicarboxylic acid and glycol according to a conventional method. Examples of the dicarboxylic acid include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, and 2,6-naphthalenedicarboxylic acid, aliphatic dicarboxylic acids such as adipic acid, azelaic acid, and sebacic acid, and oxycarboxylic acids such as oxybenzoic acid. Examples thereof include acids and ester-forming derivatives thereof. Examples of the glycol include aliphatic glycols such as ethylene glycol, 1,4-butanediol, diethylene glycol, and triethylene glycol, alicyclic glycols such as 1,4-cyclohexanedimethanol, and aromatics such as p-xylenediol. Examples thereof include polyoxyalkylene glycols such as diol, polyethylene glycol, polypropylene glycol, and polytetramethylene glycol. Polyester polyols based on these have a linear structure, but can also be made into a branched polyester using a trivalent or higher-valent ester-forming component.

The polyether-based polyurethane is obtained by reacting with a polyisocyanate using a polyether polyol as one of the polyols which are main constituent components of the polyurethane.

Examples of the polyether polyols include polyalkylene glycols such as polyethylene glycol, polypropylene glycol, polytetramethylene glycol, and copolymers thereof.

The polycarbonate-based polyurethane is obtained by reacting with a polyisocyanate using a polycarbonate polyol as one of the polyols which are main constituent components of polyurethane.

The polycarbonate polyols can be obtained, for example, by reacting a carbonate and a diol. Examples of the carbonate ester include ethylene carbonate, dimethyl carbonate, diethyl carbonate, diphenyl carbonate, dicyclohexyl carbonate, and the like. Examples of the diol include 1,6-hexanediol, 1,4-cyclohexanediol, 1,4-cyclohexanedimethanol, 3-methyl-1,5-pentanediol, polyethylene glycol, polypropylene glycol, polycaprolactone diol, Examples thereof include trimethylhexanediol and 1,4-butanediol. Moreover, the polyester polycarbonate obtained by reaction with polycarbonate diol, dicarboxylic acid, or polyester may be sufficient.

Examples of the polyisocyanate include aromatic diisocyanates such as tolylene diisocyanate, phenylene diisocyanate, 4,4′-diphenylmethane diisocyanate, 1,5-naphthalene diisocyanate, and xylylene diisocyanate, hexamethylene diisocyanate, lysine diisocyanate, and 4,4. Examples thereof include aliphatic diisocyanates such as' -dicyclohexylmethane diisocyanate and isophorone diisocyanate.

Examples of other components constituting the polyurethane include a chain extender and a crosslinking agent. Examples of the chain extender or crosslinking agent include ethylene glycol, propylene glycol, butanediol, hexanediol, diethylene glycol, trimethylolpropane, glycerin, hydrazine, ethylenediamine, diethylenetriamine, 4,4′-diaminodiphenylmethane, 4,4 ′. -Diaminodicyclohexylmethane, water, etc. are mentioned.

The ink layer 11 preferably contains a pigment. The pigment is not particularly limited, and examples thereof include carbon black (black), copper phthalocyanine (cyan), dimethylquinacridone (magenta), pigment yellow (yellow), titanium oxide, aluminum oxide, zirconium oxide, and nickel compound. Especially, since the ink layer 11 is used for drawing for washing display and quality display, carbon black is preferably used.

The ink layer 11 may further contain other resins, additives such as ultraviolet absorbers, flame retardants, additives usually used in the clothing field, etc., as necessary, within a range that does not impair the effects of the present invention. It may be included.

The ink layer 11 is formed in a desired pattern corresponding to a washing display or a quality display by a conventionally known printing method such as a screen printing method or an ink jet method. Therefore, the ink composition for forming the ink layer 11 can use additives such as solvents, amide waxes, vehicles, and the like used in conventionally known solvent-based pigment inks. May be contained.

Examples of the solvent include glycol ether solvents such as diethylene glycol diethyl ether, tetraethylene glycol dimethyl ether, tetraethylene glycol monobutyl ether, lactone solvents such as γ-butyrolactone, low boiling aromatic naphtha, propylene glycol monomethyl ether acetate, and the like. Can be mentioned.

The amide wax is synthesized by a condensation reaction of a vegetable oil fatty acid and an amine, and specific examples thereof include ethylene bis stearic acid amide (EBS) and modified montan wax. By adding amide wax, the viscosity and surface characteristics of the ink composition can be adjusted to those suitable for forming fine lines.

The thickness of the ink layer 11 is preferably 5 to 15 μm. If the thickness is less than 5 μm, the ink layer 11 may be peeled off without obtaining sufficient adhesive force. When the thickness exceeds 15 μm, formation by screen printing becomes difficult.

[Hot melt adhesive layer]
The hot melt adhesive layer 12 adheres to the fabric (base fabric) of the textile product by being heated, whereby the ink layer 11 and the hot melt adhesive layer 12 are thermally transferred to the base fabric. . The hot melt adhesive layer 12 contains a phthalic acid polyester and a caprolactone ester urethane. By containing both the phthalic acid-based polyester and the caprolactone ester-based urethane, it is possible to obtain good texture (softness) and stretchability while ensuring adhesion after being bonded to the base fabric. Moreover, the softening point of the hot-melt-adhesive agent layer 12 can be adjusted by mix | blending caprolactone ester type urethane. When the softening point is increased, it must be pasted at a high temperature, but a high adhesive force can be obtained after bonding.

The phthalic acid polyester is an ester of phthalic acid and alcohol. Specifically, dimethyl phthalate, diethyl phthalate, diallyl phthalate, dibutyl phthalate, diisobutyl phthalate, di-hexyl phthalate, phthalic acid Examples thereof include bis (2-ethylhexyl), dinormal octyl phthalate, diisononyl phthalate, dinonyl phthalate, diisodecyl phthalate, and bisbutylbenzyl phthalate. These may be used alone or in combination of two or more.

The caprolactone ester urethane is obtained by reacting a polycaprolactone polyol and polyisocyanate.

Examples of the polycaprolactone polyol include polycaprotectone glycol, polycaprolactone triol, polycaprolactone tetraol, derivatives in which side chains are introduced or branched structures are introduced, modified products, and mixtures thereof. Can be mentioned.

Examples of the polyisocyanate include hexamethylene diisocyanate (HDI), tetramethylene diisocyanate, 2-methyl-pentane-1,5-diisocyanate, 3-methyl-pentane-1,5-diisocyanate, lysine diisocyanate, and trioxyethylene diisocyanate. , Isophorone diisocyanate (IPDI), cyclohexyl diisocyanate, 4,4′-dicyclohexylmethane diisocyanate (hydrogenated MDI), norbornane diisocyanate (NBDI), hydrogenated tolylene diisocyanate, hydrogenated xylene diisocyanate, hydrogenated tetramethylxylene diisocyanate, Examples include modified products. These may be used alone or in combination of two or more.

The hot-melt adhesive layer 12 is further provided with a light stabilizer, a heat stabilizer, an antioxidant, a flame retardant, an ultraviolet absorber, a pigment, a modifier, a filler, and a charge as long as the effects of the present invention are not impaired. Various additives such as an inhibitor may be contained.

The hot melt adhesive layer 12 preferably has a softening temperature of 100 to 160 ° C. If the softening temperature is less than 100 ° C., it is sticky at the time of use, so that the handleability may not be good. When the softening temperature exceeds 160 ° C., the temperature at the time of thermal transfer increases, and the ink layer 11 or the fiber product of the adherend may be deteriorated or damaged.

A preferable lower limit of the thickness of the hot melt adhesive layer 12 is 10 μm, and a preferable upper limit is 100 μm. If the thickness is less than 10 μm, there is a possibility that sufficient adhesion to the fiber product of the adherend cannot be ensured. When the thickness exceeds 100 μm, the adhesion is not improved so much.

[First release layer]
The first release layer (separator) 13 is a layer that supports the ink layer 11 and the hot-melt adhesive layer 12 before the thermal transfer to the textile product, and the ink layer 11 and the hot-melt adhesive layer 12 are the textile product. It is easily peeled off from the hot melt adhesive layer 12 before being thermally transferred to. By providing the first release layer 13, the hot melt adhesive layer 12 is not exposed during the production, transportation and storage of the fine line display transfer film for textiles of the present invention. It becomes possible to prevent deterioration and improve the handleability of the fine line display transfer film for textiles of the present invention.

The first release layer 13 is not particularly limited as long as it can be peeled without damaging the hot melt adhesive layer 12, and examples thereof include polyesters such as polyethylene terephthalate, polyvinyl chloride, and polyvinylidene chloride. Resin film (release film) such as polypropylene and polycarbonate; paper such as high-quality paper and glassine paper (release paper), and the like. Further, the first release layer 13 is preferably a release film or release paper whose surface is coated with a release agent. Examples of the release agent include silicone release agents, alkyd release agents, and fluorine release agents. As the first release layer 13, a polyethylene terephthalate film having a silicone coating film on the surface on the hot melt adhesive layer 12 side is suitably used.

Although the thickness of the said 1st release layer 13 is not specifically limited, 50-150 micrometers is preferable from the point which is excellent in handleability.

In addition, the fine line display transfer film for textiles of the present invention may contain other layers in addition to the ink layer 11, the hot-melt pressure-sensitive adhesive layer 12, and the first release layer 13, as necessary. For example, a second release layer may be provided on the opposite side of the ink layer 11 from the hot melt pressure-sensitive adhesive layer 12 (the surface on the ink layer 11 side). The ink layer 11 and the hot melt pressure-sensitive adhesive layer 12 are preferably adjacent to each other. In other words, it is preferable that no other layer is provided between the ink layer 11 and the hot melt pressure-sensitive adhesive layer 12.

The thermocompression bonding conditions when the thin line display transfer film for textile products of the present invention is thermally transferred to a base fabric (adhered body) are the heat softening temperature and thickness of the hot melt adhesive layer 12, the material and material of the base fabric, and the ink. What is necessary is just to set suitably according to the heat-resistant temperature etc. of the layer 11, Although it does not specifically limit, What is hot-pressed for 5 to 10 second in the temperature range of 100-140 degreeC is mentioned.

The fabric of the fiber product is not particularly limited, and various materials including synthetic fibers such as polyester fiber, polyurethane fiber, nylon fiber, and triacetate fiber can be used. From the standpoint of obtaining the effect of preventing the laundry label tag from coming into contact with the skin by using the thin line display transfer film for textiles of the present invention, it is preferably a skin-wearing fabric that directly touches the skin. Moreover, it is preferable that it is a cloth | dough excellent in a stretching property from the point which takes advantage of the thin line display transfer film for textiles of this invention being excellent in a stretching property. Examples of textile fabrics having these characteristics include polyester fibers, polyurethane fibers, and mixed fibers thereof.

The ink layer 11 and the hot melt adhesive layer 12 that are thermally transferred onto the base fabric of the textile are preferably excellent in stretchability so as to follow the stretch of the base fabric. FIG. 2 is an explanatory diagram showing a test method for stretchability. As shown in FIG. 2, a test piece having a length of 60 mm produced by thermally transferring the ink layer 11 and the hot melt adhesive layer 12 onto a base fabric was stretched to a length of 120 mm in a single direction. It is preferable that the ink layer 11 and the hot melt adhesive layer 12 are not broken, peeled off, or changed in appearance (generation of wrinkles or distortion). That is, the ink layer 11 and the hot melt adhesive layer 12 preferably have an elongation after thermal transfer of 200% or more.

The fine line display transfer film for textiles of the present invention can be formed using a conventionally known method, for example, it may be formed by the following method.
(1) The coating composition obtained by coating the adhesive composition for the hot melt adhesive layer 12 directly on the release film or release paper for the first release layer 13 using the screen printing method. Is heated and dried at 60 ° C. for about 1 minute to form the hot melt adhesive layer 12.
(2) On the hot melt adhesive layer 12, the ink layer 11 is formed in a desired pattern corresponding to washing display and quality display by a conventionally known printing method such as a screen printing method or an ink jet method.

EXAMPLES Hereinafter, although an Example is hung up and demonstrated in more detail about this invention, this invention is not limited only to these Examples.

Example 1
Phthalic acid type polyester and caprolactone ester type through a screen mask in which a fine pattern with a width of 0.20 mm is formed on a polyethylene terephthalate film (manufactured by Lintec Co., Ltd., “PK38”) having a thickness of 100 μm. After applying a hot melt adhesive containing urethane (manufactured by Jujo Chemical Co., “JELCON AD-HM6”) to a thickness of 10 μm after drying, heat drying at 60 ° C. for about 1 minute with hot air, A hot melt adhesive layer was printed. Subsequently, after coating the ink composition to a thickness of 10 μm after drying through a screen mask on which the same fine pattern is formed on the hot melt adhesive layer, hot air at 60 ° C. for about 1 minute. Then, the ink layer was laminated. When coating the ink composition, the printing pattern of the hot melt adhesive layer was read with a camera and aligned so that the hot melt adhesive layer and the ink layer were laminated. In addition, as an ink composition, 80 mass parts of carbon pigment containing amide wax (manufactured by Dainichi Seika Kogyo Co., Ltd., “SX723”) with respect to 100 mass parts of ether-based polyurethane (Daiichi Seika Kogyo Co., Ltd., “LU207”). What was mixed in the ratio of the part was used. Furthermore, a polyethylene terephthalate film (manufactured by Lintec Corporation, “PET50SK-1”) with a thickness of 38 μm was applied so as to cover the ink layer. As described above, a sample of a fine line display transfer film for a textile product was produced.

(Comparative Examples 1-4)
As shown in Table 1 below, the layer configuration and the material of each layer were changed to produce a sample of a fine line display transfer film for textiles.

The details of the materials shown in Table 1 are as follows.
<First and second release layers>
“PK38” manufactured by Lintec: Polyethylene terephthalate film that has been subjected to silicone release treatment (silicone coating amount: high, peel strength: small)
“PET50SK-1” manufactured by Lintec Co., Ltd .: Polyethylene terephthalate film subjected to silicone release treatment (silicone coating amount: small, peeling force: large)

<Ink layer>
“LU207” manufactured by Dainichi Seika Kogyo Co., Ltd. “SX723” manufactured by Dainichi Seika Kogyo Co., Ltd .: Carbon pigment containing Amide Wax “FMX” manufactured by Teikoku Ink Manufacturing Co., Ltd .: Acrylic

<Hot melt adhesive layer>
"JELCON AD-HM6" manufactured by Jujo Chemical Co.
“GM-3” manufactured by Jujo Chemical Co., Ltd.
“CS-30411 TKI” manufactured by Teikoku Ink

“JELCON AD-HM6” includes urethane and polyester. The urethane is a urethane bond such as polycaprolactone diol and hexamethylene diisocyanate (HDI). The polyester is an esterified product obtained from the following acid and alcohol.
Acid: isophthalic acid, sebacic acid alcohol: neopentyl glycol, 1,3-butanediol

“GM-3” and “CS-30411 TKI” are both polyesters, but do not contain urethane.

(Evaluation test)
The samples obtained in Examples and Comparative Examples were evaluated by the following methods. The results are shown in Table 2 below.

(1) Transferability The first release layer is peeled off, and thermal transfer is performed at 120 ° C. for 10 seconds with the hot melt adhesive layer in contact with the shirt fabric (87% polyester, 13% polyurethane). Then, the second release layer was peeled from the ink layer. Thereafter, the surface of the peeled second release layer on the ink layer side was observed. The case where the ink layer was not attached to the surface of the second release layer was evaluated as “◯”, and the case where it was attached was evaluated as “X”.

(2) Stretchability After performing the thermal transfer described in (1) above, as shown in FIG. 2, the sample cut to a length of 60 mm was stretched by 200% in a single direction until the length became 120 mm. After stretching, when the ink layer and hot melt adhesive layer are not broken, peeled off, or changed in appearance (generation of wrinkles or distortion), the appearance did not change even after returning to the natural length. ”, The case where an abnormality occurred was evaluated as“ x ”.

(3) Adhesiveness with cloth After performing the thermal transfer described in (1) above, a cellophane tape was applied onto the ink layer, and the cellophane tape was peeled off. Even if the cellophane tape is peeled off, the ink layer does not peel off from the shirt fabric and the adhesiveness is good, “◯”, and when the cellophane tape is peeled off, the ink layer peels off from the shirt fabric, “×” It was evaluated.

(4) Blocking After performing the thermal transfer described in (1) above, the shirt was folded to bring the ink layers into close contact. The case where the ink layers were not attached was evaluated as “◯”, and the case where the ink layers were attached was evaluated as “x”.

As can be seen from Table 2 above, the thin line display transfer film for textiles of Example 1 had good results in all of transferability, stretchability, adhesion to the fabric, and blocking. On the other hand, the thin line display transfer films for textiles of Comparative Examples 1 to 3 were insufficient in stretchability because an acrylic material was used for the ink layer and polyurethane was not blended. Moreover, the fine line display transfer film for textiles of Comparative Example 1 also had insufficient adhesion to the fabric. Since the thin line display transfer film for textiles of Comparative Example 4 was obtained by blending the components of the ink layer in the hot melt adhesive layer instead of providing the ink layer, blocking occurred.

11 Ink layer 12 Hot melt adhesive layer 13 First release layer

Claims (4)

A thin line display transfer film for textiles used for transferring a washing indication and / or quality indication to a textile product,
Ink layer and hot melt adhesive layer are laminated,
The ink layer contains polyurethane,
The hot melt adhesive layer contains a phthalic acid polyester and a caprolactone ester urethane, and is a fine line display transfer film for textiles. The thin line display transfer film for textiles according to claim 1, wherein the ink layer and the hot melt adhesive layer have an elongation after thermal transfer of 200% or more. The thin line display transfer film for textiles according to claim 1 or 2, further comprising a first release layer on the surface on the hot melt adhesive layer side. The thin line display transfer film for textiles according to any one of claims 1 to 3, further comprising a second release layer on the surface on the ink layer side.

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