TWI255305B - Artificial leather having color patterns and method of making same - Google Patents

Abstract

An artificial leather having color patterns, including: a substrate, an elastomeric resinous layer provided over the substrate, a color pattern formed over the elastomeric resinous layer and a surface resinous layer formed over the surface of the elastomeric resinous layer having color pattern thereon. This invention further provides a method for making the artificial leather having color patterns.

Description

1255305 V. INSTRUCTION DESCRIPTION (i) [Invention] The present invention relates to a person who has the technology and has a face-to-face appearance, so that it has a work skin content. [Previously, the current leather printing is colored in one color. And the person who manufactures it [The technical field of the invention] The manufacturing method, particularly the manufacturing method. It is difficult to use a wheel with a pattern directly engraved on the person, and it is only difficult to make a plate with a plurality of vertical leathers on the artificial leather. Therefore, it is currently manufactured by printing artificial leather on an artificial leather and its color pattern with artificial leather having a colored pattern. The wheel has a surface color. Therefore, in the known technology, the work of leather requires the use of multiple sets of wheels, which is not only costly, but also has a large difference in the difference. Therefore, the artificial leather of different color patterns is more monotonous and less vivid. > ', the artificial skin with a complex color pattern according to the above-mentioned artificial leather of the bean, the spoon of the person, the present invention provides a color pattern on the non-woven fabric A two Z fabric substrate, an elastomer a resin layer is formed, and a color pattern is formed on the elastomer resin layer. The resin layer is formed on the elastomer resin layer and has the color pattern. The substrate is preferably a microfiber substrate. The thickness of the substrate is in the range of about 0. 1 mm to about 3 mm. The elastomer resin layer T is formed of an elastomer resin such as a urethane resin, an olefin resin or a copolymer resin. The color pattern is formed by a thermal transfer process or an inkjet printing process

Page 5 1255305 V. Description of the Invention (2) ^ ^ The surface resin layer may be formed of a polyurethane resin, an olefin resin, a copolymerized resin, a nitrocellulose resin or a polyethylene resin to protect the color. case. The solid content of the resin for forming the surface resin layer is preferably 34% by weight so that the surface resin layer formed has a sufficient thickness (12 to Am) to ensure good color fastness of the color pattern. Preferably, the surface layer of the tree layer comprises a solar resistant agent such that the color pattern has good light fastness. Famoto also provides an artificial leather manufacturer with complex color patterns. The main steps are as follows. First, a layer of the body tree is formed on the surface of the nonwoven substrate. In this step, the nonwoven fabric substrate may be first impregnated with the elastomer resin layer, and then the base impregnated with the elastomer resin may be subjected to a wet treatment such as spin-off washing and drying. After the impregnation step, a coating elastomer resin solution may be applied to the second surface of the substrate, or the impregnation step may be omitted, and a coating elastomer resin solution may be directly applied to the substrate. s surface. Figure: Two =: ί transfer process or - inkjet printing process formation - color ΞΠ map = resin layer. Then, the elastomer resin layer has an acoustical upper surface-forming resin layer. In forming a surface resin, a surface resin is applied to the elastomer resin layer, and a surface resin is formed to form the surface wax layer, and the resin layer is attached to the elastomer resin layer to have the color pattern. The release paper is then torn off to make the release paper and the surface resin. The invention provides an artificial 00752.ptd which can have a fresh color.

1H Page 6 1255305 V. INSTRUCTIONS (3) — A—The case is formed simultaneously by thermal transfer or inkjet printing, and the color pattern is protected by a surface resin layer to make the color on the artificial leather The pattern has good color fastness and light fastness. [Embodiment] Hereinafter, an artificial leather having a color pattern of the present invention will be described with reference to Fig. 1. The artificial leather 100 having a color pattern comprises a substrate 1 2, an elastic resin layer 1〇4, a color pattern 106, and a surface resin layer 1〇8. The substrate 1〇2 is a non-woven substrate which can be made of general fibers or microfibers. However, in order to make the artificial leather 1 〇〇 have a good feeling of 2, the substrate 1 〇 2 is preferably made of ultrafine fibers (fiber fineness of about 5. 5 〇彳 至 to about 〇. 0 0 0 1 Made by Danny). The thickness of the substrate is preferably in the range of from about u·1 mm to about 3 mm. The extractable resin layer 104 is formed of an elastomer resin such as a urethane resin, an olefin resin or a fire a resin. / 忒 Color pattern 1 〇 6 is made by a thermal transfer process or a black film. The surface resin layer 1 〇 8 is obtained by taking & t 2 , upper P brushing process resin, (4) fiber resin or 1 曰 'lipid, olefin resin, copolymer color pattern. For forming == thin resin to form 1 to protect the better system than 40%, so that the solid content of the resin formed by the meniscus layer 108 is more than (1), to confirm that the surface layer has sufficient thickness. . The surface resin preferably has a good color and has a good color and is not discolored by the glare, so that the "dawning agent" protects the color pattern. The color pattern has a good daylight. Provided as a manufacturing method of artificial leather having a heart color pattern 00752.ptd 1255305 V. Invention Description (4) The main steps are as follows. First, an elastomer resin layer 1 is formed on the surface of the nonwoven substrate 1〇2. 0. In this step, the nonwoven fabric substrate may be first/kedged into an impregnated elastomer resin layer, and the substrate impregnated with the elastomer resin may be subjected to a wet treatment such as solidification, water washing, and drying. After the sub-step, a coating elastomer solution may be applied to the surface of the substrate. However, the impregnation step may be omitted, and a coating elastomer solution may be directly applied to the coating. The surface of the substrate. Next, a color pattern 1 〇6 is formed on the elastomer resin layer 104 by a thermal transfer process or an inkjet printing process. Then, the elastomer resin layer 104 has a table of the color pattern 106 A surface resin layer 1 〇 8 is formed on the surface. In the step of forming the surface resin layer 1 〇 8, a surface resin can be directly applied onto the surface of the elastomer resin layer 具有 04 having the color pattern 丨〇6. Or coating a surface resin on a release paper to form the surface resin layer, and then attaching the surface resin layer to the elastomer resin layer 104 by using an adhesive layer to have the color pattern 丨〇6 On the surface, the release paper is finally torn off to separate the release paper from the surface resin layer 1 〇 8. According to the artificial leather of the present invention, the desired color pattern can be directly transferred by thermal transfer using a computer graphics design or Inkjet printing is once output to artificial leather. The inkjet inks used can be divided into disperse dyes, acid dyes, reactive dyes and pigments. The inkjet amount can be controlled according to the size and color depth of the image. The technology requires multiple sets of wheel sets to be overprinted on artificial leather, and the artificial leather process according to the invention is simplified and the color registration is precise (because the thermal transfer or inkjet printing is used once to color map) The case is formed in artificial leather. In addition, the prior art needs to first convert the pattern to the wheel

1255305 V. INSTRUCTIONS (5) On 'There is no way to form patterns with too many colors or too complex colors on artificial leather; different patterns require different wheels, so the design cannot be easily changed. In contrast, the present invention can use a computer graphics to design a complex shirt color pattern as needed. In addition, the design change can be easily accomplished by simply modifying the computer file. It should be noted that the present invention utilizes a surface resin layer to protect the color pattern formed by thermal transfer or ink jet printing on the artificial leather, so that the color pattern has good color fastness and light fastness. The following examples are intended to illustrate the invention in more detail and are not intended to limit the invention. Example 1 A non-woven base material was prepared by blending 3 den polyester fibers with polyamide 6 fibers. The substrate is impregnated with a urethane resin. The polyurethane resin (containing a polyurethane composition having a weight ratio of 4 〇: 6 与 and dimethylformamide (DMF) in a weight ratio of 4 〇: 6 以) was solidified by a knife coating method and solidified and 90. Washed, dried at 140 ° C to obtain a semi-finished product of general fiber artificial leather. Dilute the one-component polyurethane resin to a viscosity of 1 2 〇〇cps and apply it to a release paper (15 〇g/m2), then completely at 1〇〇~i5〇°C. After drying the film, apply a layer of two-liquid or one-component polyurethane adhesive with a viscosity of 6 5 0 0 cps (with a quantity of 150 g / m2) and semi-dry at 60 to 90 °C. After that, it is bonded to the artificial leather semi-finished product, and after being matured into a bridge (generally placed at 60 HR in an environment of 60 ° C), the release paper is peeled off to obtain a first semi-finished product. A color pattern is formed on the first semi-finished product by inkjet printing. The inkjet pigment is an aqueous pigment, the spraying speed is 1.25 yards/min, the temperature is 80~1 〇 0 °C, and can be adjusted to more than 15 colors according to the color requirement.

00752.ptd Page 9 1255305 V. Description of invention (6) To a second semi-finished product. Then 're-coating machine cold a > two-sided resin layer preferably contains -1 cloth layer of shell surface water pu treatment agent (the table is good light fastness) on the solar agent, so that the color pattern With good quality, it is possible to obtain artificial skin with a surface color pattern of the leather substrate having the color pattern: skin texture, bright I, fresh enamel, high fastness color 4e Okg according to the present invention. Artificial leather above /cm. "After the tensile test, the peel strength is up to Example 2

^ Made of __ 4 cyanide resin (containing a weight ratio of 4〇: 6 ^ base =. Impregnated with a f-based "! amine (10) F" impregnated the substrate. Will contain: =: and two 90 t water, 140 t dry. Then reduce == two to artificial leather semi-finished products. Light gray to form a microfiber person: Shi's leather semi-finished products, after dyeing, will be printed with a color pattern: 1 δ δ 人工 artificial leather semi-finished products 'Re-transfer 2 seconds to 2 seconds, so that the color pattern on the paper is transferred to the artificial and finished product.

Coating the surface of the artificial leather substrate having the color pattern with a solid content of 5% by weight liquid polyurethane resin composition, and drying it with 丨25 以 to form a surface, a lipid layer, wherein the urethane resin composition Includes a sun-resistant sheet*1. Receiver will. The Xuan surface resin layer is Honggan, Feiping, and the glutinous rice cake. The artificial leather makes the surface of the artificial leather have dermis. =; = artificial leather with bright, bright, high-fastness color patterns.

1255305 V. INSTRUCTION DESCRIPTION (7) Example 3 A non-woven substrate was prepared using the ultrafine fibers of polyamide 6. The substrate was impregnated with a polyurethane resin containing impregnation (containing a polyurethane composition in a weight ratio of 4 〇 : 6 与 and dimethyl methamine (DMF)). The impregnated substrate was washed with water at 90 ° C and dried at 140 ° C. Then, a microfiber artificial leather semi-finished product is formed by a reducing process. After the artificial leather semi-finished product is ground and dyed, a color pattern is formed on the artificial leather semi-finished product by inkjet printing. The inkjet pigment is an aqueous pigment, and the spraying speed is 55 yards/min, and the temperature is 8 〇~1 〇 (rc. On a release paper having a cowhide texture, a polyurethane resin containing a liquid type of one of the solar resistance agents is applied. To form a surface resin layer. After drying the one-component polyurethane resin by 丨2 〇t, the two-component polyurethane resin 2 is further coated with a viscosity of 6500 ° C) to the surface resin layer as an adhesive layer. . The surface resin layer is attached to the surface of the artificial leather substrate having the color pattern by the adhesion layer. After the subsequent layer is hardened, the paper is removed, and an artificial leather having a leather grain pattern and a bright, vivid, high-fastness color pattern can be obtained. Comparative Example 1 A non-woven substrate was further prepared using the ultrafine fibers of polyamide 6. The substrate was impregnated with a 2 vinegar resin impregnated (containing a weight ratio of 4G: 6G of a polyurethane composition and dimethyl decylamine (DMF)). The impregnated substrate was washed with 9 Torr water and dried with 丨40 1 . Then, a microfiber artificial leather semi-finished product is formed by reducing the amount of sputum. The artificial leather semi-finished product will be ground, and the color will be printed with the color of the 色 夕 &

00752.ptd Page 11 1255305 V. Invention (8) The paper is covered on the person=leather semi-finished product, and then thermally transferred at a temperature of 21 () 1 for 20 seconds, so that the color pattern on the paper is transferred to The artificial leather semi-finished product is 'made artificial leather with a color pattern. The artificial leather having the color pattern obtained in Example 1, Example 2, and Example 3 of the present invention was compared with the artificial leather having the color pattern obtained in Comparative Example i. The results are shown in Table 1 below. Table 1 Rubbing fastness port Example 1 Wet: 5.0 ------------ 'Into 475' ti Dry: 5.0 Example 2 Wet: 4.5 ---- Dry: 5.0 Example 3 Wet: 5.0 4.5 Dry: 5.0 Comparative Example 1 Wet · · 3.0 1 - - Dry · 3.5 4.5 4.5 3.0 Light fastness T5 As can be seen from Table 1, 'Examples according to the present invention, Example 2 and Example 3 The artificial leather with a shirt-colored pattern is measured according to AATCC (American Association 〇f Textι1e Chemists and Colorists) test method AATCC-8, each of which has "dry" and "wet" Two data, respectively, the test cloth is rubbed in a dry and wet state. The washing fastness is measured according to AATCC~61 2A... The light fastness is measured by placing the artificial leather to be tested in an ultraviolet light box for 6 hours, wherein the ultraviolet light box is a 3 watt UV light.

1255305 V. Description of invention (9) Management. The results obtained can be divided into 1 to 5 levels, with level 1 representing "poor" and level 5 representing "excellent". As a result of the comparison, the color pattern on the artificial leather provided by the present invention has better friction, water washing and light fastness than the comparative example. While the invention has been described herein with reference to the details of the preferred embodiments of the present invention, it is understood that Within the scope, the modifications made are foreseen. Therefore, the scope of the invention is defined by the scope of the appended claims.

00752.ptd Page 13 1255305 BRIEF DESCRIPTION OF THE DRAWINGS [FIG. fa simplification] In order to make the above and other objects, features and advantages of the present invention more obvious, the preferred embodiments of the invention are described below The drawings are described in detail below. Fig. 1 is a cross-sectional view showing an artificial leather having a color pattern according to an embodiment of the present invention. Description of the drawings: 100 Artificial leather 102 Substrate 104 Elastomer resin layer 106 Color pattern 108 Surface resin layer

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Claims (1)

1255305 VI. Patent application scope 1. An artificial leather having a color pattern, comprising: a non-woven substrate; an elastomer resin layer formed on the non-woven substrate; a color pattern formed on the elastomer resin layer And a surface resin layer formed on the surface of the elastomer resin layer having the color pattern. The color of the leather-skinned workers has a color of 11--^ The first round of Fan Li is requested to apply for the foundation of the thick foundation. The second paragraph of the Fanli special application for the roots of the coated lipid tree surface The color of the leather leather workers in the case. The color of the fat has the ester of the ammonia of the tree. The first round of the Fanli special »^1 According to the root, the combination of the work of the leather group of the leather group is a combination of color and color with the acidity of the tree In the selection table of the group containing the rouge rouge, the group in the group is in the middle of the section, and the encyclopedia of the perfume is the root of the tree. The chemical term is contained. The package layer of the fat selection tree in the group of the group of the group of the group of the group of the group of the group in the case of the roots in the mouth of the mouth of the tree in the case of the tree body of the leather workers in the case of a 111 color gum tree with ester ammonia Poly item 1 contains 00752.ptd Page 15 1255305 VI. Patent application scope 7. Artificial leather with color pattern according to item 1 of the patent application scope, wherein the elastomer resin layer comprises a nitrocellulose resin and a polyethylene resin. Selected from the group. 8. The artificial leather having a color pattern according to claim 1, wherein the surface resin layer is formed of a resin having a solid content of more than 40%. 9. The artificial leather having a color pattern according to claim 1 of the patent application, wherein the surface resin layer has a thickness of 12 to 90 //m. 10. The artificial leather having a color pattern according to claim 1 of the patent application, further comprising an adhesive layer disposed between the surface resin layer and the surface of the elastomer resin layer having the color pattern. 1 . The artificial leather having a color pattern according to claim 10 of the patent application, wherein the surface resin layer comprises a one-component polyurethane resin composition and the adhesive layer comprises a two-component polyurethane resin composition. 12. A method of manufacturing an artificial leather having a color pattern, comprising the steps of: forming an elastomer resin layer on a nonwoven substrate; forming a color pattern on the elastomer resin layer; and having the elastomer resin layer A surface resin layer is formed on the surface of the color pattern. 00752.ptd Page 16 1255305 VI. Patent Application No. 1 3. A method for producing artificial leather having a color pattern according to claim 12, wherein the step of forming the elastomer resin layer comprises impregnating the nonwoven fabric substrate An elastomer resin layer for impregnation. 1 . The method for producing an artificial leather having a color pattern according to claim 13 of the patent application, wherein the step of forming the elastomer resin layer further comprises: performing a wet treatment on the substrate impregnated with the elastomer resin, wherein Wet processing includes solidification, water washing, and drying steps. The manufacturing method of the artificial leather having a color pattern according to Item 13 of the patent application, wherein the step of forming the elastomer resin layer further comprises coating a coating elastomer solution after the impregnation step Deployed on the surface of the substrate. The manufacturing method of the artificial leather having a color pattern according to Item 12 of the patent application, wherein the step of forming the elastomer resin layer comprises directly coating a coating elastomer resin solution on the substrate. surface. 17. The method of producing an artificial leather having a color pattern according to claim 12, wherein the step of forming the color pattern is achieved by a thermal transfer process. 1 8. Artificial leather with color pattern according to item 12 of the patent application scope 00752.ptd Page 17 1255305 6. The manufacturing method of the patent application scope, wherein the step of forming the color pattern is achieved by an inkjet printing process. The method for producing an artificial leather having a color pattern according to claim 12, wherein the surface resin layer forming step comprises directly coating a surface resin on a surface of the elastomer resin layer having the color pattern. on. The manufacturing method of the artificial leather having a color pattern according to Item 12 of the patent application, wherein the surface resin layer forming step comprises: coating a surface resin on a release paper to form the surface resin layer; The surface resin layer is attached to the surface of the elastomer resin layer having the color pattern by an adhesive layer; and the release paper is peeled off to separate the release paper from the surface resin layer. 2 1. A method of producing an artificial leather having a color pattern according to claim 12, wherein the substrate is a microfiber substrate. 2 2. A method of producing an artificial leather having a color pattern according to claim 21, wherein the substrate has a thickness of 0.1 mm to 3 mm. [2] The method for producing an artificial leather having a color pattern according to Item 12 of the patent application, wherein the surface resin layer is formed of a surface resin, 00752.ptd Page 18 1255305 VI. Scope of Application The surface resin is a polyurethane resin. 2. The method for producing artificial leather having a color pattern according to claim 12, wherein the surface resin layer is formed of a surface resin composed of a dilute acid resin and a copolymer resin. The selected one in the group. The manufacturing method of the artificial leather having a color pattern according to Item 12 of the patent application, wherein the surface resin layer is formed of a surface resin composed of a nitrocellulose resin and a polyethylene resin. The selected one in the group. A method of producing an artificial leather having a color pattern according to claim 12, wherein the elastomer resin layer is formed of an elastomer resin, and the elastomer resin is a polyurethane resin. 2. The method for producing an artificial leather having a color pattern according to claim 12, wherein the elastomer resin layer is formed of an elastomer resin which is made of a nitrocellulose resin and a polyethylene resin. The selected group is selected. A method of producing an artificial leather having a color pattern according to claim 12, wherein the surface resin layer is formed of a surface resin having a solid content of more than 40%. 00752.ptd第19页