JPH06238858A - Decorative sheet, clothing and manufacture of decorative sheet - Google Patents

Abstract

PURPOSE:To provide a method for stably manufacturing a decorative sheet, which has extremely fine rugged pattern on its surface, at low cost so as to realize the fashionability excellent in surface change, and clothing. CONSTITUTION:The decorative sheet concerned is thermoplastic resin sheet-like matter with rugged pattern consisting of intervals or lines having the thickness of 0.1-100mum. In addition, the clothing concerned is constituted by sewing the obove-mentioned decorative sheet. Further, in order to manufacture the decorative sheet, sheet, which has rugged pattern consisting of intervals or lines having the thickness of 0.1-100mum and is so treated as to be water repellent, is laminated at least on one side of the thermoplastic resin sheet-like matter so as to being the matter in contact with the side treated to be water repellent of the sheet in order to be pressed together with the matter under heat and cooled down and finally separated from the sheet treated to be water repellent.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative sheet having an extremely fine pattern on its surface, a garment, and a method for producing the decorative sheet.

[0002]

2. Description of the Related Art Conventionally, as a method of imprinting a pattern pattern on the surface of a sheet-like material, a metal roll engraved with the pattern or a template having a pattern formed by applying a resin to paper or the like is in a heat-softened state. A method of pressing the sheet surface is known.

However, each of the above-mentioned methods has a complicated and delicate pattern, for example, a pattern of a fibrous tissue structure,
For example, it is difficult to form a thread shape pattern or a jacquard texture pattern, and it is limited to a simple pattern. Moreover, in products of other lots of small lots, engraving rolls and templates are extremely expensive, and the product cost is low. It has the drawback of being expensive.

[0004] At present, as lifestyles are diversified and individual treatment is required, there has not been proposed a shaped article and a shaping method capable of coping with them.

[0005]

DISCLOSURE OF THE INVENTION The present invention is intended to provide a fashionable decorative sheet having an extremely fine uneven pattern on the surface and excellent in surface change, particularly a leather-like decorative sheet and clothing. It is an object of the present invention to provide a method for stably and inexpensively producing such a decorative sheet.

[0006]

The present invention has the following structure in order to achieve the above object.

That is, in the decorative sheet of the present invention, the spacing or the line thickness is 0.
It is characterized by having an uneven pattern of 1 to 100 μm. Further, the clothing of the present invention is characterized by being constructed by sewing such a decorative sheet, and further, the method for producing a decorative sheet of the present invention is at least a thermoplastic resin sheet-like material. A sheet having a concavo-convex pattern with a spacing or line thickness of 0.1 to 100 μm on one side, and after stacking the water-repellent treated sheets so that the water-repellent treated surfaces are in contact, heat and press, Then, after cooling, the water-repellent treatment sheet is peeled off.

[0008]

According to the present invention, as a result of earnestly studying to obtain a sheet having an extremely fine uneven pattern and having a highly decorative appearance and touch, a specific fiber structure is laminated on the surface of the thermoplastic resin sheet. After heating and pressing, the fibrous texture structure was peeled off, and then the texture structure of the fibrous texture structure was clarified, and a concavo-convex pattern of single fiber units was finely formed to complete the completion. It is a thing.

As the thermoplastic resin of the present invention, any commonly used resin thermoplastic resin such as polyurethane resin, vinyl chloride resin, olefin resin, polyester resin and polyamide resin can be used. . Among these, polyurethane-based and polyolefin-based resins and elastomers having excellent viscoelasticity are preferably used. In particular, polyolefin elastomers and ionomers are preferable because they show excellent moldability. Specifically, a metal cross-linking resin of ethylene-propylene-diene-ternary copolymer, ethylene-methacrylic acid copolymer or the like can be used.

The decorative sheet of the present invention is characterized in that it has a very fine uneven pattern in which the intervals and the line thicknesses are 0.1 to 100 μm. Moreover, it is also characterized in that the uneven pattern is engraved. Such an uneven pattern is also extremely fine in terms of depth, and it is possible to clearly confirm even a depth of about 1 μ.

This characteristic is due to the fact that, when engraving the thermoplastic resin, an engraved sheet subjected to a specific treatment is used, and preferably the thermoplastic resin is also specific. That is, an engraved sheet having an engraved pattern, for example, a fiber sheet (including woven fabric, knitted fabric, non-woven fabric, etc., and composite fabrics and laminated fabrics thereof) and a sheet having a fine uneven pattern on the surface (plastic, wood, metal plate, leather) A sheet made of various materials such as a sheet) and at least the surface used for engraving is treated to be water repellent. This water-repellent surface can be conveniently synergized with the fluidity of the softened resin to function, and even fine irregularities can be expressed. As such a water-repellent agent, a fluorine-based resin, a silicone-based resin, a wax-based resin or the like can be used.
It is preferable that the former two form a sharp engraving pattern. Such chemicals may remain in traces in the engraved sheet, but there is no problem because it is not related to the characteristics of the product.

In the decorative sheet of the present invention, the engraved pattern in which a plurality of thin cloths are superposed and engraved can express even fine fine irregularities that cause moire due to light interference.

The decorative sheet having such fine irregularities can preferably have a fabric laminated on the back surface to impart dimensional stability. Such a fabric laminated decorative sheet can be suitably used as clothing by cutting and sewing.

Next, a method for producing the decorative sheet of the present invention will be described.

First, as a method for producing a thermoplastic resin sheet material, for example, a melt laminating method in which resin chips are introduced into an extruder, melted by heating and extruded into a sheet shape from a T-die, or a heated metal roll is used. Calendering method in which the resin is melted in between and molded into a sheet, or
A known sheet forming method such as a coating method in which a fiber cloth is coated with a resin solution and a wet or dry film is formed can be employed. Such a resin sheet may be dyed with a pigment or a dye such as a dye in advance,
You may dye after forming a sheet or after imprinting fine unevenness.

As a method for imparting a pattern (for example, a texture pattern of a fiber texture structure) of an engraved sheet having fine irregularities on one surface of such a resin sheet, for example, a heat of fusion extruded in a sheet shape from a T die is used. For example, by inserting the engraved sheet (for example, a fibrous structure) on one side of the plastic resin sheet, pressing between a cooling roll and a pressure roll, and then peeling off the engraved sheet, or by a thermal calendar. When the sheet is formed into a sheet, the engraved sheet is inserted into at least one side of the sheet, and the sheet is pressed and cooled, and then the fiber structure is peeled off. Further, the sheet is formed by various methods, and the fiber structure is laminated on the surface. Then, a method of pressing between heated rolls or flat plates can be adopted.

As a method for forming a sheet having a moire pattern in the decorative sheet of the present invention, it is confirmed that a moire pattern appears when two or more fabrics are superposed, and then the fabric is treated with the resin. Laminate on sheet. When two cloths are used, such a moire is formed by patterning one of the cloths, then cooling and peeling the cloth, and then laminating the other cloth on the resin sheet and heating and pressing. The moire can be formed by a method of peeling after cooling. Further, in the melt extrusion laminating method, if a cloth, for example, a woven fabric is bound endlessly, a resin sheet having a long pattern engraved can be continuously manufactured.

When a thermoplastic resin sheet or powder is molded with a mold, a cloth is used as an engraving sheet,
By placing this on the inner surface of the mold, a molded product having a fine texture pattern of a fabric structure or a single fiber can be obtained.

As the engraved sheet of the present invention, a cloth, for example, a woven fabric, a knitted fabric, a non-woven fabric or the like, a composite fabric thereof, a laminated fabric or the like, and a sheet-like product having a fine uneven pattern on the surface thereof, for example, plastic, wood or a metal plate. Sheets made of various materials such as leather can be used. Examples of the above-mentioned cloth include long fibers made of known fibers such as natural fibers, synthetic fibers, and semi-synthetic fibers, alone or mixed, or yarns made of single fibers,
It includes all forms such as strings, ropes, non-woven fabrics and knitted fabrics.

When selecting such an engraved sheet, it is of course necessary to select a fiber having a heat resistance above the softening temperature of the thermoplastic resin, preferably above the melting point, or between the thermoplastic resin sheet and the engraved sheet. Those having a poor compatibility, such as a combination of olefin and polyester, can form a sharp and delicate pattern and can be easily peeled off.

The engraved sheet is water-repellent for obtaining a fine engraved pattern and for facilitating peeling after hot pressing. What is this water repellent treatment?
The method usually practiced for fibrous tissue structures can be employed. For example, at least the surface of the engraved sheet to be engraved is treated with a solution of a fluorine-based resin, a silicone-based resin, or a wax-based resin, or a mixture of two or more thereof. As such a treatment method, it is possible to employ a method of dipping and then squeezing with a mangle, coating with a spray, coating with a knife coater or the like and applying a predetermined amount of resin liquid, followed by drying and heat treatment. it can.

The engraved sheet of the present invention is not limited to a sheet made of a single material, but various combinations can be used and can be reused many times.

The temperature and pressing conditions in the shaping of the present invention are as follows:
Since it depends on the type of thermoplastic resin used and the manufacturing method, it may be determined according to the desired engraving pattern (pattern) and its depth. For example, the temperature at the time of pressing is the softening of the thermoplastic resin. From the point, it is preferable that the temperature range is from 20 ° C. lower to the melting point of the resin, more preferably from −10 ° C. to plus 20 ° C. of the softening point.
The pressing pressure is preferably ^{2 to} 80 kg / cm ² , and more preferably 5 to 50 kg / cm ² . Cooling after heating and pressing, the temperature of the resin sheet processed by heating and pressing,
It is preferably carried out until the temperature reaches 50 ° C or lower, more preferably 30 ° C or lower.

The surface of the thus-produced decorative sheet can be subjected to resin processing depending on the purpose. Such resin processing is to impart scratch resistance or a leather-like surface touch. The resin used for such resin processing is preferably urethane resin. Such a urethane resin is obtained by reacting a polyol and a diisocyanate, and as the polyol, a polyester polyol having a hydroxyl group at both ends, a polyether polyol, or the like can be used. Aromatic diisocyanates and aliphatic diisocyanates such as 4-tolylene diisocyanate, diphenylmethane diisocyanate, tetramethylene diisocyanate and isophorone diisocyanate can be used. In addition, in such a reaction system,
Aliphatic amines such as 6-butanediol, hydrazine and hexamethylenediamine may be mixed as a chain extender. As such a urethane-based resin, a resin using an aliphatic organic diisocyanate and a polycarbonate-based diol or a polyether-based diol in particular exhibits an effect of improving hydrolysis resistance, discoloration resistance, and the like. A copolymer resin with an amino acid, such as an addition polymer resin of polyurethane and N-carboxy-α-amino acid anhydride, is effective for improving the surface touch, and further, collagen, natural leather,
By mixing a natural substance (granular substance, preferably fine powder) such as silk or wool, it is possible to make the appearance like natural leather in addition to the surface touch.

Such resin processing can be applied by a known method such as gravure coater, knife coater, spray, etc. before or after imprinting the engraved pattern by the engraving sheet, but when the unevenness after imprinting is large. Is preferably a spray method. The thickness of the resin layer in resin processing is preferably 3
The range is -80 μm, more preferably 5-30 μm.

[0026]

EXAMPLES The present invention will be described in more detail with reference to examples below, but the invention is not limited thereto. Examples 1 to 3 and Comparative Example 1 An olefin elastomer (Millastomer 9020N manufactured by Mitsui Oil Industry Co., Ltd.) mixed with a black pigment was extruded by an extruder at a temperature of 230 ° C. at a discharge rate of 400 g / min from a T-die to obtain a surface temperature. Various polyester woven fabrics (manufactured by Toray Industries, Inc.) shown below were introduced between the stainless steel roll for cooling at 30 ° C. and the extruded sheet, and the pressure was 5 kg / cm ² with a silicone rubber lining pressure roll.
It was collected at a speed of 2 m / min while applying the pressure. After that, the woven fabric was peeled off to obtain a decorative sheet.

The results of evaluation of this decorative sheet are summarized in Table 1.

For comparison, a template having a leather-like pattern (manufactured by Lintex Co., Ltd .; product number EV-130-TA-7-R-64) was used and carved in the same manner as in Example 1.

Next, Table 2 shows the yarn densities and finish densities of the polyester woven fabrics used in the above examples.

This polyester woven fabric was scoured or washer-twisted by a conventional method, dried and then heat set at 180 ° C. Next is Dianex Black BG-
FS (Mitsubishi Kasei Co., Ltd. disperse dye) 1 at a concentration of 14%
Dyeing was carried out at 30 ° C. for 45 minutes, and reduction washing, water washing, drying and heat setting were carried out by a conventional method. The black woven fabric is Toray Silicone S
H8240 (Silicone-based water repellent manufactured by Toray Silicone Co., Ltd.) Immerse in 40 g / l aqueous solution and squeeze with mangle 7
After adjusting the adhesion amount to 5% by weight, it is dried at 130 ° C., 18
What was heat-set at 0 ° C. was used.

[0031]

[Table 1]

[Table 2] Further, as is clear from Table 1, when these decorative sheets are observed with a microscope, in the example, grooves are formed in a number substantially equal to the yarn density forming the woven fabric for patterning. The recesses having a width substantially equal to the diameter of the fibers were clearly engraved, and the groove portions corresponding to about 0.5 to 10 μ between the single fibers were also engraved clearly. Particularly, in the first embodiment,
120-300 with different multifilament convergence states
The gathered state of the μ-width warp and weft yarns was also clear, and the engraved pattern observed with a microscope was so close that it was indistinguishable from the actual fabric.

The reflectance of the surface of the decorative sheet (L value-
Measured with a color difference colorimeter manufactured by Suga Test Instruments Co., Ltd.
The smaller the value is, the darker the color is), which is almost the same as the difference in the L value (the state where the silicone resin is not processed) between the used fabrics, and the fabric structure and the yarn structure are clearly applied. It was confirmed that it was modeled.

Further, it was confirmed that the samples of the examples looked darker than the generally used leather pattern and had a calm surface condition. In particular, the product according to Example 3 was a decorative sheet having a high-class feeling suitable for decoration and clothing, in which the jacquard pattern of the embossed pattern was clearly shaped.

When the woven fabric of Example 1 was repeatedly used, there was no problem in workability even if it was used 6 times, but the template of Comparative Example 1 hardly peeled off from the resin at the third time. , A part of the engraved sheet was peeled off by adhesion.

Example 4 Two sheets of the woven fabric of Example 2 were superposed so as to generate moire and processed in the same manner as in Example 1. As a result, the same moire as that of the fabric was clearly formed on the sheet surface. A decorative sheet was obtained.

Example 5 The woven fabric used in Example 2 was superposed on the surface of the sheet of Example 2 and processed in the same manner as in Example 1 to obtain a decorative sheet having a clear moire pattern formed on the surface. .

Examples 6 to 9 Gauze fabric for kimono (polyester fiber fabric manufactured by Toray Industries, Inc.) was scoured and heat set by a conventional method, and then NK Guard FGN700 (fluorine-based water and oil repellent manufactured by Nichika Chemical Co., Ltd.) Immerse in 50 g / l aqueous solution, squeeze with mangle (wet pickup 70%) and dry at 130 ℃, 180
Heat set at ℃. The fabric had a thickness of 0.4 mm. Table 3 shows the results of shaping the woven fabric by changing the pressure of the pressure roll in the same manner as in Example 1.

[0038]

[Table 3] As is clear from Table 3, the fabric having a depth of 20% or more of the thickness of the woven fabric for shaping has a clear woven structure pattern. The depth of the handle is measured by taking an electron micrograph of the sheet cross section.

Example 10 Taffeta (manufactured by Toray Industries, Inc.) using filament yarn having a diameter of 2.5 μm of polyester single fiber was treated to be water-repellent with silicone resin in the same manner as in Example 1, and then engraved. Then, a decorative sheet was obtained.

The recess formed in this sheet has a diameter of 2.
With a size of 8μ, the thread shape and the woven structure are clearly engraved. Specifically, about 0.1 to about 10
A groove structure corresponding to 5 μ was clearly engraved.

Example 11 One side of a nylon thread taffeta (manufactured by Toray Industries, Inc.) was coated with the following resin composition by a knife coater at 900 g / m ² and then wet-solidified to form a moisture-permeable resin film. .

(Resin composition) Polyurethane resin 100 parts (Dainippon Ink and Chemicals Co., Ltd .: Chris Bon 8006HV) Colorant 10 parts (Dainippon Ink and Chemicals Co., Ltd .: Dailac L color) Film forming aid 1 part ( Dainippon Ink and Chemicals, Inc .: Crisbon Assister SD-7) Film forming aid 2.5 parts (Dainippon Ink and Chemicals, Inc .: Crisbon Assister SD-11) Solvent (dimethylformamide) 200 parts Wet coagulation Is a mixed solution of water and the above solvent (weight ratio: 90/1
0) was adjusted to 30 ° C., the above coated cloth was immersed in this for 5 minutes, then washed with warm water of 50 ° C., dehydrated, and dried at 120 ° C.

Example 3 was applied to the coated surface of this coated fabric.
The water-repellent treated woven fabric of (1) was overlaid and pressed with a flat plate press machine heated to 140 ° C under a pressure of 10 kg / cm ² for engraving treatment, and a jacquard pattern was clearly engraved on the surface of the coating resin. A decorative sheet rich in fashionability was obtained.

This decorative sheet was cut and sewn to form a coat. The appearance of this coat was a leather-like coat that also had dignified moisture permeability.

[0045]

According to the present invention, it is possible to impart a clear and stable pattern pattern of a leather-like material or a fibrous structure to a new sensation, such as wall covering materials, interior materials for construction such as ceiling materials, furniture and the like. It is possible to provide a decorative sheet material suitable for a wide variety of uses such as a skin material for chairs, clothes, and bags with high productivity and at low cost.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B32B 25/10 27/12 8413-4F B44C 3/02 9134-3K D06N 7/04 8016-4F D21H 27/00

Claims (14)

[Claims] 1. A decorative sheet-like article, characterized in that the surface of the thermoplastic resin sheet-like article has a concavo-convex pattern in which intervals and line thicknesses are 0.1 to 100 μm. 2. The decorative sheet according to claim 1, wherein the thermoplastic resin is an elastomer. 3. The uneven pattern is a moire pattern.
The decorative sheet described. 4. The decorative sheet according to claim 1, wherein the uneven pattern has a depth of 1 μm or more. 5. The decorative sheet according to claim 1, wherein the thermoplastic resin sheet material has a cloth laminated on the back surface thereof. 6. The surface of the thermoplastic resin sheet-like material has an uneven pattern having a space or line thickness of 0.1 to 100 μm,
Moreover, a garment characterized by being sewn with a decorative sheet having a fabric laminated on the back surface thereof. 7. A water-repellent treated sheet which has a water-repellent treatment and has a concavo-convex pattern with a spacing or line thickness of 0.1 to 100 μm on at least one surface of the thermoplastic resin sheet-like material. A method for producing a decorative sheet, comprising laminating so that the surfaces are in contact with each other, heating and pressing, then cooling, and then peeling off the water-repellent treated sheet. 8. Heating the softening point of the thermoplastic resin to -1.
The method for producing a decorative sheet according to claim 7, wherein the temperature range is 0 to + 20 ° C. 9. A thermoplastic resin melt-extruded into a sheet shape, and then, while the resin is in a semi-molten state, at least one surface of the sheet has unevenness with a space or line thickness of 0.1 to 100 μm. A decorative sheet characterized in that sheets having a pattern and subjected to a water repellent treatment are laminated so that the water repellent treated surfaces are in contact, pressed, and then cooled, and then the water repellent treated sheet is peeled off. Manufacturing method. 10. The method for producing a decorative sheet according to claim 7, wherein the water repellent treatment is a treatment with at least one selected from a fluorine resin, a silicone resin and a wax resin. 11. The method for producing a decorative sheet according to claim 7, wherein the water-repellent sheet is a cloth. 12. The method for producing a decorative sheet according to claim 7, wherein the strength of pressing reaches a depth of 20% or more of the thickness of the water repellent treated sheet. 13. The method for producing a decorative sheet according to claim 7, wherein the water-repellent treated sheet is a laminate of two or more fabrics forming a moire pattern. 14. The water-repellent treated sheet according to claim 7 or 8, which is pressed with one sheet of water-repellent treated sheet to form an engraved pattern, and then the sheet is cooled and peeled off to have an engraved pattern of the same or different type. A method for producing a decorative sheet, comprising laminating water-repellent treated sheets in the same manner as described above, and imprinting the same or different engraved patterns on the engraved pattern.