JP2005226172A - Leather-like product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a leather-like product which enables a high-mix low volume production, to which a desired color pattern can efficiently be imparted, and which can avoid the damage and peeling of the color pattern, even when receiving an outer force, and to provide a hook-and-loop fastener having leather-like product which can be used as such without losing the flexibility of the leather-like product itself, by cutting off an excessive portion, even when used as a belt. <P>SOLUTION: This leather-like product is produced by forming the surface layer 3 of the leather-like product from a polyester or a nylon or forming the surface layer 3 containing a fiber layer comprising the fibers of at least one of a polyester and a nylon as a substrate and then printing the surface layer 3 with a sublimable dye by a heat transfer printing method. A hook-and-loop fastener 6 may be laminated to the back surface of the leather-like product 3 through an adhesive layer 5 comprising a hot melt adhesive. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a leather preparation, and in particular, to a leather preparation having a desired pattern, pattern and color on a surface layer, and a leather preparation with a hook-and-loop fastener using the same.

  In general, leather-like products such as artificial leather, synthetic leather, and artificial leather are used for car interiors, upholstery and other interior decorations, shoes, bags, bags, apparel products such as clothing and clothing accessories. in use. The leather preparation is generally classified into three types: artificial leather (artificial leather), synthetic leather, and artificial leather. The surface decoration includes a vinyl chloride resin and a polyurethane resin that form a skin layer of the leather preparation. Adopting a coloring method, printing a desired color, pattern or design on the surface by gravure printing or screen printing, or a liquid dyeing method in which a leather preparation is immersed in a dyeing solution Has been.

  However, only a single color can be obtained by adding a colorant, and gravure printing and spraying methods are not suitable for high-mix low-volume production due to high equipment costs, and a decorative layer is provided on the surface of leather preparations. Due to the laminated structure, there were problems such as the decorative layer being damaged or peeled off by friction or other external forces. In the liquid dyeing method, the leather preparation is dyed as a whole, so there is no problem of peeling off the decorative layer, but environmental pollution due to washing after dyeing or other post-treatment is a problem.

  In order to solve these problems, one or more polyurethane resin layers are laminated on a fiber base material, and a silicon-modified polyurethane layer is mainly used as the uppermost layer of the polyurethane resin layer, and a sublimation dye is received as a dyeing layer. A sublimation dyeable synthetic leather formed by forming a receiving layer composed of a functioning polyurethane resin layer has been proposed (see, for example, Patent Document 1).

  On the other hand, when the leather preparation is used for a fastener such as a band or a belt, it is frequently bent or a tensile force is applied, so that flexibility and durability are required. The decorativeness of the appearance is also required. However, when this kind of leather preparation is applied to a belt for a prosthesis, etc., it is first considered to give a clean feeling, and a white or light-colored belt is exclusively used regardless of the intention of the user. is the current situation. In addition, in order to facilitate the attachment and detachment of the prosthesis, usually, a hook-and-loop fastener is used instead of a clasp such as a buckle, and two types of male and female hook-and-loop fasteners are sewn on the back of the leather-made belt, and one end side thereof Sew to the prosthesis to make it the fixed end, the other end of the free end is passed through a ring provided on the prosthesis, and the other end is overlapped with the fixed end side of the belt. A so-called folded belt structure in which a fastener is engaged is employed.

  As the hook-and-loop fastener, there are known a male hook-and-loop fastener in which a hook-type engaging element is implanted or integrally molded on a base fabric, and a female hook-and-loop fastener in which a loop-type engaging element is implanted or integrally molded on a base cloth. (For example, see Patent Document 2 and Patent Document 3) In addition, a male-female mixed surface fastener in which a hook-type engaging element and a loop-type engaging element are mixed on a flat base material surface has been developed (for example, (See Patent Document 4).

JP-A-6-192967 (first page) Japanese Patent Laid-Open No. 10-099374 (first page) JP-A-10-117815 (first page) JP-A-9-173109 (first page)

  Conventional leather products cannot satisfy the decorative features such as patterns, designs and colors required for apparel products, etc., and are not sufficient as a belt for a prosthetic device that requires decorativeness in addition to cleanliness. Absent. In addition, in the case of a prosthetic device, even if the conventional white or other single color alone can give a clean feeling, the prosthetic device is too conspicuous due to the color scheme of clothing, etc. May refuse to wear. For this reason, there is a demand for the development of a belt made of leather-finished products that has not only a clean feeling but also a fashionable prosthesis and a design and color pattern suitable for it. In addition, when a leather-like product with a decorative layer printed by gravure printing, spraying, etc. is used for a folding belt for a prosthetic device, it is frequently bent, pulled or compressed, so the decorative layer is cracked, peeled off or scratched. It is inevitable that it will occur. In addition, when these leather-finished products are used by being stitched together with a hook-and-loop fastener, there is a problem that the thickness of the entire belt increases and the appearance and design are not good.

  On the other hand, in the sublimation dyeable synthetic leather, the skin layer is formed of silicon-modified polyurethane having excellent heat resistance, and sublimation dye printing paper is superimposed on the surface, and the sublimation dye is sublimated and dyed. Therefore, the color pattern is formed inside the skin layer, and it is possible to avoid damage and peeling of the color pattern due to friction and the like. In order to eliminate this blurring, it is necessary to contain heat-resistant fine particles with excellent dyeability in the silicon-modified polyurethane layer, so synthetic leather with a colored pattern by sublimation transition has not been put to practical use. Currently.

  In addition, when producing a prosthetic device, the folding belt is usually measured by individual users, cut into synthetic leather or artificial leather according to the dimensions, and then cut into two on the back side in the same manner. Generally, a method of joining the hook-and-loop fasteners and sewing them along the edges thereof. However, since a certain amount of time is required from the measurement to the fitting, the state of the user's wearing part changes with the passage of time, and the belt length often needs to be adjusted during the fitting. In this case, it is only necessary to cut off the surplus portion of the folding belt on the spot and use it as it is.However, if the surplus portion is cut off, the suture can be gradually released and the synthetic leather and the hook-and-loop fastener can be separated and repaired in a short period of time. There is a problem that it becomes necessary. Therefore, when a problem occurs in the belt at the time of try-on, an appropriate dimension is determined at the site, and then the product is brought back to the factory to cut off an excess portion and re-sewn. This inevitably not only inconveniences the user, but also has the problem that it takes time and effort and increases the cost. In addition, when only one end side of the folding belt is cut off, the folding position is shifted via the ring, and the engagement area between the male and female of the surface fastener is reduced, so that there is a problem that the coupling strength of the belt is lowered.

  In order to solve the above problem, the present inventors tried a method of bonding a surface fastener with a leather preparation with an adhesive, but a normal liquid adhesive used for bonding leather preparation, for example, polyurethane Adhesive adhesives and chloroprene rubber adhesives do not provide the desired adhesive strength, and the leather preparation may be peeled off from the surface fastener or become rigid, losing the flexibility and flexibility of the leather preparation itself. When it is used as a folding belt, it has become clear that the engaging portion of the hook-and-loop fastener comes off due to the elastic restoring force of the folding portion of the belt and cannot be put to practical use.

  Therefore, the first technical problem of the present invention is that it is possible to produce a variety of products in small quantities, has a decoration of a desired color, pattern or design, or a combination thereof, has excellent flexibility and durability, and receives external force. However, it is to obtain a leather preparation that can avoid damage and peeling of the color pattern.

  In addition, the second technical problem of the present invention is that it can be produced in a variety of small quantities, has a desired color, pattern or pattern, or a decoration made of a combination thereof, and has a hook-and-loop fastener on the back, and is flexible. And it is in obtaining the leather preparation excellent in durability.

  As a means for solving the first problem, the present invention pays attention to sublimation dye thermal transfer printing in which a heat sublimation dye penetrates into the dyed material and dyes its surface layer, while polyester and nylon are Focusing on the fact that it has a relatively high melting point (usually 250 to 265 ° C.), is excellent in weather resistance and flexibility, and exhibits excellent mechanical properties over a wide temperature range, The base material for forming the surface layer portion is made of nylon, and is composed of a nonwoven fabric, woven fabric or knitted fabric made of at least one kind of polyester and nylon fibers, and the surface layer portion is impregnated with a heat sublimation dye by thermal transfer printing for thermal transfer. A printed layer is formed.

  That is, the leather preparation according to the present invention has a skin layer made of polyester or nylon or a skin layer based on a fiber layer made of at least one kind of fiber of polyester and nylon, and the skin layer is a sublimation dye. It is characterized by containing a thermal transfer printing layer subjected to thermal transfer printing.

  For the leather preparation according to the present invention, it is sufficient to use synthetic leather as a material for general purposes, but those that require flexibility, toughness and durability, such as bands and belts, etc. When used as a fastener, it is preferable to use artificial leather or a suede type fiber product as a material.

  In a preferred embodiment of the present invention, the leather preparation is a synthetic leather, and the outermost layer of the skin layer is formed of a polyester resin and is subjected to thermal transfer printing with a sublimation dye. The synthetic leather is usually a nylon fiber, a polyurethane fiber, a polyolefin fiber, or a base material made of a woven fabric, a knitted fabric or a non-woven fabric impregnated with a polymer material, and a non-woven fabric impregnated with a polymer material, It is comprised by the porous layer formed in the surface of the base material, and the at least one skin layer laminated | stacked on the surface of the said porous layer.

  The porous layer is usually formed of a polyurethane foam. The skin layer is formed by applying a coating resin such as polyurethane resin, nylon resin, polyester resin on the surface of the porous layer.

  Further, as the synthetic leather, commercially available ones may be used. For example, synthetic leather “Saxon Tuffpet Libero (trade name)”, “Saxon Tuffpet Links (trade name)” manufactured by EH Chemical Co., Ltd. And synthetic leather “Silcem (registered trademark)” manufactured by Unitika Ltd. In this case, when the outermost layer of the skin layer is not formed of nylon or polyester resin, it can be used by coating the surface of the synthetic leather with nylon resin or polyester resin to form the outermost layer.

  In a more preferred embodiment of the present invention, the leather preparation is artificial leather obtained by impregnating a special nonwoven fabric with a flexible polymer material such as polyurethane, and at least the skin layer is at least one of polyester and nylon. And a printing layer that is heat transfer printed with a sublimation dye. The fibers constituting the skin layer are usually ultrafine fibers of 0.3 denier or less, preferably 0.1 denier or less.

  The artificial leather has a single-layer silver surface type in which a surface finish is directly applied to a base fabric obtained by impregnating an elastic polymer resin into the fiber layer, and a coating layer is laminated on the surface of the base fabric. A silver surface type having a finished two-layer structure and a suede type having a brushed finish on the surface of the base fabric are included. The artificial leather usually has at least one type of ultrafine fibers of polyester and nylon mixed together in a bundle to make a nonwoven fabric of a three-dimensional structure fiber layer, impregnated with elastic polyurethane resin, and then coated on the surface Manufactured by surface finishing after or without treatment.

  In addition, as the artificial leather, commercially available ones may be used. For example, in the case of the silver surface type, Kanebo Co., Ltd. Belace (registered trademark), Berria (registered trademark), Silkour (registered trademark); Kuraray Co., Ltd. Clarino (registered trademark), Sofrina (registered trademark) manufactured by Teijin Ltd., Cordele (registered trademark), Cordele Airy (registered trademark), etc. Suede types include Exeine (registered trademark) manufactured by Toray Industries, Inc., Clarion Nonash (registered trademark) manufactured by Kuraray Co., Ltd., Glore (registered trademark) manufactured by Mitsubishi Rayon Co., Ltd., and Ramose manufactured by Asahi Kasei Corporation (registered trademark). Trademark), Versame (registered trademark) manufactured by Kanebo Gosei Co., Ltd., Dream (trade name) manufactured by Fukui Yamamoto Co., Ltd., Ore (registered trademark) manufactured by Mitsubishi Rayon Co., Ltd., Lofera (registered trademark) manufactured by Toyobo Co., Ltd. And Renessa (registered trademark) manufactured by Teijin Limited.

  The leather preparation contains a thermal transfer printing layer for drawing a pattern, a color pattern, characters, a photograph, or the like printed by the sublimation dye thermal transfer method on the entire surface or a part of the surface layer portion. This thermal transfer printing layer uses a transfer paper on which a desired pattern, color pattern, character or photograph is gravure-printed or screen-printed with a dispersed ink containing a sublimation dye, and this transfer paper is adhered to the surface of the leather preparation. The sublimation dye is sublimated by heating to 180-200 ° C. with a heat roll or iron, and transferred from the transfer paper to the surface of the leather preparation. Penetrates and diffuses to dye the fibers of the surface layer portion, and a thermal transfer printing layer is formed inside the leather preparation. The depth of the thermal transfer printing layer usually reaches 20 to 30 μm from the surface of the leather preparation. Therefore, in the leather preparation according to the present invention, the printed layer is not laminated on the surface of the leather preparation, but is formed inside the leather preparation. Therefore, even if the surface of the leather preparation is scratched, the color is lost. Or peeling.

  The transfer paper used at the time of thermal transfer printing is usually a dispersion ink obtained by kneading a sublimation dye with a binder such as linseed oil or rosin-modified alkyd resin and adjusting the viscosity with a diluent such as mineral oil. Can be produced by printing gravure printing, offset printing, silk screen printing on base paper, commercially available transfer paper, for example, Top Color Printing NP (registered trademark) manufactured by Toppan Printing Co., Ltd., Toyo Printing Co., Ltd. A company-made pudding color TS (registered trademark), a transfer paper manufactured by Filawa, a transfer paper manufactured by North Sea, a transfer paper manufactured by Toyful, etc. may be used. Examples of the sublimable dyes include pyridone azo series, anthraquinone series, indoaniline series, azo series, quinoline series dyes, and any dye that sublimates at a temperature of 180 to 200 ° C. Any known one can be used.

  In addition, the present invention adopts a hot melt adhesive as a means for integrating with the surface fastener without losing the flexibility of the leather preparation, and adopts a male and female mixed type surface fastener when used as a folding belt. However, in order to obtain sufficient bonding strength, the thickness of the leather-finished product is made thin, and at the same time, the thin polyurethane-based hot, which is excellent in elasticity and flexibility, considering the material of the leather-finished product and the surface fastener base fabric A melt film is used for bonding.

  Therefore, according to the present invention, the leather preparation having a thermal transfer printing layer having a surface layer portion impregnated with a thermal sublimation dye by thermal transfer printing on the basis of a fiber layer composed of at least one kind of fiber of polyester and nylon. A leather fastener with a hook-and-loop fastener comprising a hook-and-loop fastener made of nylon or polyester base fabric, wherein the hook-and-loop fastener is bonded to the back of the leather-finished product with a polyurethane hot melt adhesive. It is done.

  In a preferred embodiment, the leather preparation with a hook-and-loop fastener is a thin-walled artificial leather, the hook-and-loop fastener is a hook-and-loop fastener made of a nylon or polyester base fabric, and the artificial leather and the hook-and-loop fastener Is bonded with a polyurethane-based hot melt film.

  As the hook-and-loop fastener, any one can be used depending on the application, for example, a large number of hook-shaped or mushroom-shaped male engaging elements or loop-shaped female engaging elements on the surface of a woven or knitted base fabric. A pair of hook-and-loop surface fasteners may be used, and a male-female mixed surface fastener in which a large number of male and female engaging elements are raised on the surface of the base fabric may be used. When the leather preparation according to the present invention is applied to a belt for a prosthesis, it is preferable to use a male / female mixed surface fastener in which a large number of male and female engaging elements are erected on the surface of a thin base fabric. . Commercially available hook-and-loop fasteners can be used, such as Quicklon (registered trademark) manufactured by YKK Corporation, Velcro (registered trademark) manufactured by Kuraray Co., Ltd., Free Magic (registered trademark), etc. Can be mentioned.

  In addition, as an adhesive for bonding the artificial leather and the hook-and-loop fastener, a hot melt type adhesive having a high bonding speed and strong bonding strength is used so as not to impair the flexibility of the leather-finished product. For example, known hot melt adhesives mainly composed of a thermoplastic resin such as ethylene vinyl acetate copolymer resin, polyamide, polyester, atactic polypropylene, thermoplastic elastomer, and thermoplastic polyurethane resin can be used. Among them, it is preferable to use a polyurethane hot melt adhesive mainly composed of a thermoplastic polyurethane resin. Further, the adhesive layer for bonding the leather preparation and the hook-and-loop fastener should be as thin as possible so as not to impair the flexibility of the leather preparation. Usually, the thickness is 40 μm or less, preferably 25 μm or less. Is preferable. In particular, the adhesive layer is preferably formed using a hot melt film in order to prevent the flexibility and texture of the leather preparation from being impaired.

As the hot melt film, commercially available ones can be used. For example, polyurethane hot melt film “Elfan (registered trademark) UH” manufactured by Nippon Matai Co., Ltd., polyurethane hot melt film manufactured by Nippon Unipolymer Co., Ltd. “UNIMELT (registered trademark)” series UNH790 (product name), UNH785 (product name), UNH385 (product name), polyurethane hot melt film “Thermobond film (registered trademark)” manufactured by Sumitomo 3M Limited, etc. . Examples of other polyester-based, polyamide-based, etc. include Toyobo's Byron (registered trademark) series GM400 (product name), GM900 (product name), GM925 (product name), GA5300 (product name), GA5410 ( Product name) and RV30P (product name) film, polyamide hot melt film “Elfan (registered trademark) NT” manufactured by Nippon Matai Co., Ltd., polyester hot melt film “Elfan (registered trademark) PH” , Etc. Adhesion is performed by heating and pressurizing by hot pressing, high-frequency heating, ultrasonic heating or any other means. In the case of hot pressing, the pressure is 120 to 180 ° C. under a pressure of 0.5 to 2.0 kgf / cm ² . What is necessary is just to carry out by heating for 0.1 to 1 minute at temperature.

  According to the present invention, the surface layer portion or the skin layer of the leather preparation is composed of at least one fiber of polyester and nylon, and a thermal transfer printing layer is formed by impregnating the surface with a thermal sublimation dye by thermal transfer printing. Therefore, the following excellent effects are achieved. That is, the appearance of the leather preparation can be remarkably improved by transferring a desired color, pattern or design, or a combination of these, and a variety of products can be produced in small quantities, and the decoration is the surface of the leather preparation. Dyeing layer with excellent friction and weather resistance can be formed by heat sublimation dye penetrating from the inside, and the decoration is not scratched or peeled off by external force such as friction, and dyeing by thermal transfer printing Therefore, there is an advantage that washing with water after dyeing is unnecessary and no solvent is used so that air is not contaminated.

  Moreover, since the leather-finished product and the hook-and-loop fastener are integrated, the hook-and-loop fastener leather preparation according to the present invention does not need to be sewn, and can be used after being cut at an arbitrary position. In particular, when artificial leather with a hook-and-loop fastener is applied to a belt or the like, for example, a folding belt for a prosthetic device, a male and female mixed type surface fastener is integrated on the back of the artificial leather by bonding. Even if it is cut, there is no need for re-sewing as before, and there is no need to worry about the mating between the male and female surfaces like a male and female separable surface fastener. If you use a standard product that covers the belt as a prosthetic device belt, you can adapt it to the required belt length just by cutting it to fit the size of the user when trying on it, which is inconvenient for the user In addition, the delivery time can be shortened and the cost can be reduced.

  Furthermore, since the surface fastener made of thin-walled base fabric is bonded to the leather preparation with a hot melt adhesive, both can be firmly bonded, and the surface preparation is attached without impairing the flexibility and texture of the leather preparation itself. A leather preparation can be obtained. In particular, a male-female surface fastener that has male and female engaging elements standing on a thin base fabric is used as a surface fastener in the form of thin artificial leather or suede-like fiber product as the leather preparation. Then, by heat-bonding both with a thin polyurethane hot melt film interposed therebetween, the surface layer portion has a desired color, pattern or pattern, or a decoration composed of a combination thereof, and is excellent in flexibility and durability, Even if the fastener is engaged by double folding like a folded belt, the male-female artificial hook-and-loop fastener has a binding force that does not cause the hook-and-loop fastener engaging portion to be disengaged by the elastic restoring force of the leather-like product itself. Leather or suede textile products can be obtained.

  Therefore, according to the present invention, it is possible to obtain an artificial leather or suede-like fiber product with a male and female mixed type surface fastener that is supple and has a high tensile strength and is excellent in weather resistance, flexibility and friction resistance. Can be adjusted to a belt length suitable for individual users by simply cutting the belt at an arbitrary location even if the required belt dimensions are different from the measurements at the time of fitting. it can. This makes it possible to use a standardized belt, and the belt length can be corrected on the spot at the time of fitting, and there is no need for re-sewing as in the conventional case. can do. In addition, the artificial leather itself can form a thermal transfer printing layer with a desired color, pattern or pattern, or a combination of these with a heat sublimation dye, so that it looks good according to the user's preference. A variety of good prostheses and other products can be manufactured.

  Synthetic leather “Saxon Tuffpet Libero (trade name)” manufactured by EH Chemical Co., Ltd. is used as the leather preparation, and a polyurethane adhesive is applied to the surface of the synthetic leather 1 and a polyethylene terephthalate film with a thickness of 24 μm is applied. In combination, a skin layer 3 was obtained, and a synthetic leather having the structure shown in FIG. The thickness of the adhesive layer 2 was 16 μm. The synthetic leather includes a base fabric 1a made of a 50% rayon / 50% polyester non-woven fabric, a porous layer 1b formed by impregnating and applying wet polyurethane to the base fabric, and a polyurethane-based paint on the surface. It has a structure composed of a colored skin layer 1c formed by coating, and its thickness is 0.65 to 0.75 mm.

  When a commercially available sublimation dye thermal transfer paper was superposed on the skin layer 3 of the synthetic leather and heat transfer printing was performed by heating and pressing at 200 ° C. for 40 seconds using a flat heating press, the pattern 4 of the transfer paper was The skin layer 3 was clearly and colorfully transferred and printed, and the sublimation dye penetrated into the skin layer 3 to form a printed layer.

  A male and female mixed type surface fastener “Q mate” manufactured by YKK Co., Ltd. is interposed on the back side of the synthetic leather 1 which has been transferred and printed with a polyurethane hot melt adhesive film “ELFAN (registered trademark) UH” manufactured by Nippon Matai Co., Ltd. (Registered trademark) ”is laminated and heated and pressed at 140 ° C. for 30 seconds using a flat heating press to bond the synthetic leather 1 and the hook-and-loop fastener 6 to obtain the synthetic leather with hook-and-loop fastener having the structure shown in FIG. It was. The hot-melt adhesive film forming the adhesive layer 5 has a thickness of 20 μm, and the hook-and-loop fastener 6 is erected on the base fabric 9 by mixing the hook-type engaging element 7 and the loop-type engaging element 8. It is. This synthetic leather with a hook-and-loop fastener is flexible and excellent in spite of the fact that the hook-and-loop fastener is bonded, and when the hook-and-loop fastener is bent and engaged, the hook-and-loop fastener is engaged. The department did not spread.

  In addition, in order to measure the adhesive strength between the synthetic leather and the hook-and-loop fastener, the synthetic leather with hook-and-loop fastener is cut into a 54 mm width to obtain a test piece, which is JIS L under conditions of a temperature of 20 ° C. and a humidity of 65%. It was 34.67 N / mm when measured according to the method prescribed in 3416-2000 (180 degree peel test (integral average), tensile speed 50 mm / min).

  Synthetic leather with a hook-and-loop fastener was obtained in the same manner as in Example 1 except that synthetic leather “Saxon Tuffpet Links (trade name)” manufactured by EH Chemical Co., Ltd. was used as the leather preparation. This synthetic leather with a hook-and-loop fastener is flexible and excellent in spite of the fact that the hook-and-loop fastener is bonded, and when the hook-and-loop fastener is bent and engaged, the hook-and-loop fastener is engaged. The department did not spread.

  The adhesive strength between the synthetic leather and the hook-and-loop fastener was measured with a 52 mm wide test piece in the same manner as in Example 1 and found to be 44.25 N / mm.

  As a leather preparation, Kuraray Co., Ltd. made of artificial nonwoven fabric made of polyester and nylon and impregnated with polyurethane is used as the base material. Then, a transfer paper on which a desired color pattern is gravure-printed with a dispersion ink containing a commercially available sublimation dye is adhered, and then heated under pressure with an iron heated to 180 to 200 ° C. for 1 to 2 minutes, An artificial leather having a color pattern printed on the surface by thermal transfer printing was obtained. The sublimation dye forming the color pattern penetrated from the surface of the artificial leather to a depth of 20 to 30 μm to form a thermal transfer printing layer.

  YKK Co., Ltd. male-female surface fastener “Q-Mate” (registered) with a polyurethane hot-melt adhesive film “Elfan (registered trademark) UH” manufactured by Nippon Matai Co. Trademark) ”was superposed, the adhesive film was heated and melted through a pair of heat rollers, and the artificial leather and the hook-and-loop fastener were bonded to obtain an artificial leather with hook-and-loop fastener. This artificial leather with a hook-and-loop fastener is flexible and excellent in spite of the fact that the hook-and-loop fastener is bonded. Even if the hook-and-loop fastener is bent and engaged, the hook-and-loop fastener can be engaged. The department did not spread.

  With respect to the artificial leather with a hook-and-loop fastener, the adhesion strength between the artificial leather and the hook-and-loop fastener was measured with a 52 mm wide test piece in the same manner as in Example 1, and was found to be 42.31 N / mm.

  Suede type fiber product "Dream" (trade name, knitted fabric of the same direction satin structure with yarn made of polyester fiber, processed with brushing, shirring, dyeing etc. as suede type Using a commercially available transfer paper on which a desired color pattern is gravure-printed with a dispersed ink containing a sublimation dye as a transfer paper, the color pattern is thermally transferred onto the brushed surface (surface) in the same manner as in Example 3. A printed suede-like fiber product was obtained. The heat-transferred sublimation dye penetrated from the surface of the suede-like fiber product to a depth of 20 to 30 μm to form a color pattern.

  YKK Co., Ltd. male / female surface fastener “Q Mate” (registered trademark) with polyurethane hot-melt adhesive film “Elfan (registered trademark) UH” manufactured by Nippon Matai Co., Ltd. interposed on the back surface of the suede type fiber product. ) ”Were superposed and bonded through a pair of heat rollers to obtain an artificial leather with a hook-and-loop fastener. This artificial leather with a hook-and-loop fastener is flexible and excellent in spite of the fact that the hook-and-loop fastener is bonded. Even if the hook-and-loop fastener is bent and engaged, the hook-and-loop fastener can be engaged. The department did not spread.

  Each leather fastener with surface fasteners of Examples 1 to 4 was cut into a width of 3 cm and a length of 50 cm to prepare a band-like test piece, and a belt thread (a 4 mm-thick metal plate had an outer dimension: length 40 mm × width 18 mm, Inner dimensions: Cut into 32mm length x 10mm width and rounded each corner), hold both ends of the test piece, apply the hook-and-loop fastener side of each test piece in parallel with the belt loop, An endurance test was performed in which the test piece was reciprocated while being pressed against the belt loop and bent in a state close to a normal use state. In addition, after using a test piece different from the test piece and inserting the test piece so that the surface fastener side of the test piece is in contact with the belt loop, each test piece has both ends of the test piece and the upper edge of the surface fastener of the test piece is the belt. An overdurability test was performed in which the test piece was tensioned by being obliquely applied so as to be in strong contact with the thread, and the test piece was bent in a harsher state than the normal use state by alternately pulling both ends of the test piece. The results are shown in Table 1. One reciprocation of the test piece was counted as one time.

  All leather preparations exhibited sufficient adhesive strength, no peeling from the hook-and-loop fastener was observed, and no deterioration of the color pattern was observed under normal use conditions. As can be seen from the results shown in Table 1, in the test pieces of Examples 1 and 2, since deterioration was observed on the surface side in an excessive durability test under conditions more severe than normal use conditions, Although there is a problem in durability, the test pieces of Examples 3 and 4 have significantly improved durability in the normal durability test and the special durability test as compared with those of Examples 1 and 2, and are applicable to folded bands and the like. Even if it showed sufficient durability.

Sectional drawing which shows one Example of the leather preparation which concerns on this invention Sectional drawing which shows the other Example of the leather preparation which concerns on this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Synthetic leather 1a ... Base material 1b ... Foam layer 1c ... Colored skin layer 2 ... Adhesive layer 3 ... Skin layer 4 ... Printing layer 5 ... Adhesive layer 6 ... Surface fastener 7 ... Hook type engagement element 8 ... Loop type engagement Element 9 ... Base fabric

Claims (10)

  It has a skin layer based on a skin layer made of polyester or nylon or a fiber layer made of at least one kind of fiber of polyester and nylon, and the skin layer contains a printed layer that has been heat transfer printed with a sublimation dye. Leather preparation characterized by that.   The leather-like product according to claim 1, wherein the leather-like product is a synthetic leather, and the outermost layer of the skin layer is formed of a polyester resin and includes a printing layer that is heat-transfer printed with a sublimation dye. Product.   2. The leather preparation according to claim 1, wherein the leather preparation is a suede type fiber product, and the skin layer is formed of polyester fiber and includes a printing layer that is heat-transfer printed with a sublimation dye. 3. .   The leather preparation is an artificial leather made by impregnating an elastic polymer material into a special nonwoven fabric made of a three-dimensional three-dimensional structure fiber layer, and the skin layer is made of at least one kind of polyester and nylon ultrafine fibers, and is sublimated. The leather preparation according to claim 1, further comprising a thermal transfer printing layer printed by thermal transfer printing with a functional dye.   The leather preparation according to claim 4, wherein the artificial leather is a silver surface type or a suede type.   The leather preparation according to claim 4, wherein the artificial leather is an artificial leather having a single-layer structure composed of a base fabric obtained by impregnating a special nonwoven fabric with an elastic polymer material.   The leather preparation according to claim 4, wherein the artificial leather has a two-layer structure in which a polyurethane sponge layer is laminated on the back surface of a base fabric obtained by impregnating a special nonwoven fabric with an elastic polymer material.   The leather preparation according to claim 1, wherein the leather preparation is formed by laminating a surface fastener on a surface opposite to the printing layer via a hot melt adhesive layer.   The leather preparation according to claim 8, wherein the surface fastener is a male and female mixed surface fastener. The leather preparation according to claim 4, wherein the leather preparation is artificial leather, and a male-female surface fastener is laminated on the surface opposite to the printed layer via a polyurethane-based hot melt adhesive layer.

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