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WO2017188722A1 - Cuir artificiel pour matériau d'intérieur de véhicule et son procédé de fabrication - Google Patents

Cuir artificiel pour matériau d'intérieur de véhicule et son procédé de fabrication Download PDF

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Publication number
WO2017188722A1
WO2017188722A1 PCT/KR2017/004428 KR2017004428W WO2017188722A1 WO 2017188722 A1 WO2017188722 A1 WO 2017188722A1 KR 2017004428 W KR2017004428 W KR 2017004428W WO 2017188722 A1 WO2017188722 A1 WO 2017188722A1
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WIPO (PCT)
Prior art keywords
layer
artificial leather
surface treatment
foam layer
manufacturing
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Ceased
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PCT/KR2017/004428
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English (en)
Korean (ko)
Inventor
민철희
정용배
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LX Hausys Ltd
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LG Hausys Ltd
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Publication date
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Ceased legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D06N3/183—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials the layers are one next to the other
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • D06N3/065—PVC together with other resins except polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/10—Properties of the materials having mechanical properties
    • D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2209/00—Properties of the materials
    • D06N2209/16—Properties of the materials having other properties
    • D06N2209/1685—Wear resistance
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/26—Vehicles, transportation
    • D06N2211/263—Cars
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/12—Decorative or sun protection articles
    • D06N2211/28—Artificial leather

Definitions

  • the present invention relates to an artificial leather for automobile interior materials having excellent physical properties and a method of manufacturing the same.
  • artificial leather is manufactured using polyvinyl chloride (PVC) or polyurethane (PU) as a material.
  • PVC polyvinyl chloride
  • PU polyurethane
  • the artificial leather made of PU is manufactured by laminating an adhesive layer and a PU label layer on a fabric layer by casting, and the PU material is difficult to foam, and thus, artificial leather having a cushioning feeling. There is a problem that is difficult to provide.
  • An object of the present invention is to provide an artificial leather for automotive interior having excellent surface properties and cushioning (feel).
  • Another object of the present invention is to provide a method of manufacturing artificial leather.
  • Artificial leather for car interior material layer in accordance with the present invention for achieving the above object; A foam layer formed on the fabric layer; A label layer formed on the foam layer; And an aqueous surface treatment layer formed on the label layer, wherein the embossed pattern is formed on the surface of the aqueous surface treatment layer.
  • the label layer may be formed from a label layer composition comprising a polyurethane (PU) -based resin.
  • PU polyurethane
  • the cover layer may be formed by a rotary screen process.
  • the foam layer may be formed from a foam layer composition comprising a polyvinyl chloride (PVC) resin and a foaming agent.
  • PVC polyvinyl chloride
  • the foam layer composition may include 5 to 10 parts by weight of a blowing agent based on 100 parts by weight of polyvinyl chloride resin.
  • the thickness of the foam layer may be 0.2 ⁇ 0.4mm.
  • the label layer may have a thickness of 50 ⁇ m to 100 ⁇ m.
  • the aqueous surface treatment layer is polyurethane (PU) -based resin; Curing agent containing 1 or more types of isocyanate group and carbodiimide group; And an aqueous solvent comprising at least one of water and alcohol.
  • PU polyurethane
  • the fabric layer may be a woven or nonwoven fabric including one or more of cotton, nylon, polyester, and rayon.
  • Method of manufacturing artificial leather for automobile interior for achieving the above another object (a) on the fabric layer by a calender process using a foam layer composition comprising a polyvinyl chloride (PVC) resin and a blowing agent Forming a foam layer to prepare a sheet; (b) forming a label layer on the sheet by a rotary screen process using a label layer composition comprising a polyurethane (PU) resin; (c) forming an aqueous surface treatment layer on the label layer; And (d) forming an embossed pattern on the surface of the aqueous surface treatment layer.
  • PVC polyvinyl chloride
  • PU polyurethane
  • Foam layer of step (a) may be formed by foaming at a temperature of 220 ⁇ 230 °C.
  • the calendar process of step (a) may be performed using a roller having a temperature of 100 ⁇ 200 °C.
  • the aqueous surface treatment layer of step (c) may be formed by performing a gravure coating process.
  • the embossed pattern of step (d) may be formed by performing a vacuum embossing process.
  • the vacuum embossing process may be performed under a vacuum gauge pressure of 0.04 to 0.07 MPa.
  • the vacuum embossing process may be performed at a temperature of 160 ⁇ 180 °C.
  • the artificial leather for automobile interior according to the present invention has an excellent cushioning effect compared to the artificial leather manufactured only with conventional PVC or PU material by the laminated structure of the PVC foam layer and the PU cover layer.
  • an aqueous surface treatment layer on the PU label layer, it is possible to improve surface properties such as wear resistance and feel.
  • the cover layer including the PU material may be formed on the foam layer including the PVC material without the need for an adhesive layer using a rotary screen process. Accordingly, the embossed pattern can be directly formed by a vacuum embossing process without using a release paper.
  • the production method of artificial leather for automobile interior of the present invention is improved productivity and workability by a calender process, a rotary screen process and a gravure coating process.
  • Figure 1 shows a cross-sectional view of the artificial leather for automobile interior according to the present invention.
  • Figure 2 is a flow chart illustrating a manufacturing method of artificial leather for automobile interior according to the present invention.
  • Figure 3 shows a rotary screen process diagram according to the present invention.
  • Figure 4 shows a photograph taken a cross section of the artificial leather foam layer for automobile interior according to the first embodiment of the present invention.
  • Figure 5 shows a picture of the product (a) containing the normal far-end layer of the present invention and the product (b) including a far-end layer having a wrinkled wrinkles.
  • leather used for automobile interior is divided into natural leather and artificial leather. Since natural leather is expensive and supplies are not smooth, the use of artificial leather is increasing. As mentioned above, artificial leather is generally made of PVC or PU material. Artificial leather made of PVC material has the disadvantage that the wear resistance is weak, the artificial leather made of PU material has a problem that the cushioning feeling is lowered due to the foaming deterioration.
  • the present invention provides an artificial leather for automobile interior materials having excellent cushioning and durability through a configuration including a foam layer including a PVC material and a cover layer including a PU material.
  • the artificial leather of the present invention has an effect of excellent surface properties by forming an aqueous surface treatment layer and an embossed pattern on the top of the artificial leather.
  • the PVC foam layer means a foam layer containing a PVC material
  • the PU label layer means a cover layer containing a PU material
  • Figure 1 shows a cross-sectional view of the artificial leather for automobile interior according to the present invention.
  • Artificial leather for automobile interior material layer 10 according to the present invention;
  • a foam layer 20 formed on the fabric layer;
  • a label layer 30 formed on the foam layer;
  • an aqueous surface treatment layer 40 formed on the label layer, wherein an embossed pattern is formed on the surface of the aqueous surface treatment layer.
  • the far end layer 10 is a part which is in contact with the vehicle seat frame side, in order to secure rigidity, the thickness is uniform, the dimensional stability is high, it is preferable not to be deformed by heat and pressure.
  • the fabric layer 10 may be a woven or nonwoven fabric including one or more of cotton, nylon, polyester, and rayon.
  • the foam layer 20 may be formed from a foam layer composition including a polyvinyl chloride (PVC) resin and a foaming agent.
  • the foamed layer 20 may be formed by mixing a polyvinyl chloride resin and a foaming agent to prepare a foamed layer composition, and applying the composition to a predetermined thickness and then foaming the composition at about 220 to 230 ° C.
  • the foam layer composition may include polyvinylidene chloride (PVDC) resin, chlorinated polyvinyl chloride (CPVC) resin, etc. in addition to the polyvinyl chloride resin.
  • artificial leather made of a PU material it is manufactured by laminating an adhesive layer and a PU label layer on a fabric layer and then performing foaming and drying.
  • the thickness of the PU label layer is thin as 30 ⁇ 70 ⁇ m, accordingly, there is a high probability of pores on the surface of the product when foaming. Therefore, the artificial leather made of PU material is difficult to foam, it is difficult to provide an artificial leather with a cushion (cushion) feeling.
  • the blowing agent is azodicarbonamide (ADCA, Azodicarbonamide), p, p'-oxybisbenzenesulfonyl hydrazide (p, p'-Oxybis (benzenesulfonyl hydrazide)), p-toluenesulfonyl hydrazide (p- toluenesulfonyl hydrazide) and sodium bicarbonate, and the like, but are not limited thereto.
  • the blowing agent After the blowing agent is foamed at approximately 220 ⁇ 230 °C, it may have a volume increase rate of 100 ⁇ 500% by volume.
  • the gas generated from the foaming agent may form bubbles to form a foaming cell in the foaming layer 20.
  • the foaming cell may be a spherical foaming cell, and all of the walls of the pores are formed in a closed structure, and are also called independent pores or closed cells as pores not connected to other pores. Since the foamed cell is not deformed by physical external force, it is possible to improve the soft characteristics and cushioning of the foamed layer 20.
  • the foam layer composition may include 5 to 10 parts by weight of a blowing agent based on 100 parts by weight of polyvinyl chloride resin.
  • a blowing agent based on 100 parts by weight of polyvinyl chloride resin.
  • the foaming agent is included in less than 5 parts by weight, the softness and cushioning of the artificial leather may be lowered.
  • it exceeds 10 parts by weight the foam cells of the foam layer are excessively generated, resulting in a decrease in surface properties or durability.
  • the foam layer composition may further include a plasticizer and a heat stabilizer to control the melt strength during foaming.
  • the thickness of the foam layer formed through the foaming process may be 0.2 ⁇ 0.4mm.
  • the thickness of the foam layer is less than 0.2mm, since the thickness is thin, the cushioning of the artificial leather can be reduced, there is a problem that the pattern of the fabric layer woven fabric is exposed to the product surface. On the contrary, when the thickness exceeds 0.4 mm, there is a problem in that the wrinkle wrinkles occur on the surface of the product.
  • folding wrinkles when the artificial leather is bent for a long time, the shape of the foamed cell is deformed and fixed, so that deep wrinkles are generated as shown in FIG. Such bending wrinkles have a problem that is not restored even through heat or steam treatment.
  • the label layer 30 serves to secure surface smoothness, provide color, and may be formed from a label layer composition including a polyurethane (PU) -based resin.
  • the polyurethane resin may be prepared by polymerizing a polycarbonate diol, a polyether diol or a diol containing a carboxyl group, and a diisocyanate compound at about 80 to 100 ° C. Since the produced polyurethane-based resin does not contain volatile organic compounds such as toluene, it is easy to disperse water, does not adversely affect the human body, and is environmentally friendly. For this reason, the label layer 30 is excellent in compatibility with the aqueous surface treatment layer 40 described later, there is an advantage that can improve the surface properties such as touch.
  • the cover layer 30 may have a thickness of 50 ⁇ m to 100 ⁇ m. If the thickness of the cover layer 30 is less than 50 ⁇ m, it may be difficult to secure the surface smoothness, if it exceeds 100 ⁇ m, the cushioning of the artificial leather may be lowered or the adhesive strength with the foam layer.
  • the aqueous surface treatment layer 40 improves scratch resistance, stain resistance and surface properties, and provides an environmentally friendly effect.
  • the aqueous surface treatment layer 40 is a polyurethane resin; Curing agent containing 1 or more types of isocyanate group and carbodiimide group; And an aqueous solvent comprising at least one of water and alcohol.
  • the polyurethane-based resin included in the aqueous coating composition may be the same as the polyurethane-based resin of the label layer 30.
  • Curing agents containing the isocyanate group include toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, naphthalene diisocyanate and the like.
  • the curing agent containing the carbodiimide group is 1-ethyl-3- (3-dimethylamino) propyl) carbodiimide (1-ethyl-3- (3- (dimethylamino) propyl) carbodiimide Etc.
  • the aqueous solvent is a solvent in contrast to the organic solvent, it may mean a solvent having an OH group.
  • the water-based coating composition may improve pollution resistance by including an aqueous solvent such as water and alcohol.
  • An embossed pattern (not shown) is formed on the surface of the aqueous surface treatment layer, and the embossed pattern imparts an excellent surface texture to the artificial leather for automobile interior materials and improves surface durability.
  • Figure 2 is a flow chart illustrating a manufacturing method of artificial leather for automobile interior according to the present invention.
  • Manufacturing method of artificial leather for automobile interior is the foam layer forming step (S110), the cover layer forming step (S120), the aqueous surface treatment layer forming step (S130) and the embossing pattern forming step (S140) on the fabric layer It includes.
  • the foam layer 20 is formed from a foam layer composition containing a polyvinyl chloride (PVC) resin and a blowing agent.
  • PVC polyvinyl chloride
  • the calendering process is a roller compaction is performed at the same time as passing the raw material between the rollers rotating in the opposite direction, and then includes a cooling process.
  • the raw material may be kneaded at a temperature of 100 to 200 ° C. before passing the raw material between the rollers, but is not limited thereto.
  • the foam layer composition may be passed through a calender roller to form a pre-foam layer on the fabric layer 10.
  • the calender roller is maintained at a temperature of approximately 100 ⁇ 200 °C, the average rotational speed of the calender roller may be 30m / min ⁇ 100m / min.
  • the temperature of the calender roller is less than 100 ° C, melting of the foam layer composition is not sufficiently performed.
  • shear strength between calender rollers may occur, and adhesion or premature foaming of the foam layer composition may occur on the roller surface.
  • the preliminary foam layer is foamed at a temperature of 220 ⁇ 230 °C to form a foam layer (20).
  • the foaming temperature is less than 220 ° C, the heat transfer of the foam layer is insufficient to reduce the foamability.
  • the foaming temperature exceeds 230 °C the over-foaming phenomenon may occur, bubbles may occur on the surface of the product, there is a problem that the wrinkles occur on the surface of the product.
  • the fabric layer 10 and the foam layer 20 is then cooled to room temperature, thereby producing a semi-finished sheet.
  • the cover layer 30 is formed on the sheet by performing a rotary screen process.
  • the label layer is formed from a label layer composition containing a polyurethane (PU) resin.
  • the rotary screen process is a process in which the raw material is coated on the sheet by rotating the screen net after inputting the raw material into the screen net. More specifically, referring to FIG. 3, different colors and patterns may be formed on fabric layers such as fibers, fabrics, etc. using color reservoirs and screen rollers.
  • a polyurethane resin is applied onto the sheet by a rotating screen roller to form a label layer.
  • the liquid polyurethane (PU) resin stored in the raw material reservoir is supplied to the screen roller.
  • the raw material reservoir may be one or more, injecting a polyurethane resin into the first raw material reservoir, injecting a separate raw material that can give color to the second raw material reservoir, and then rotating the screen roller connected to each reservoir By doing so, a label layer having a color can also be formed.
  • a printing method such as comma coating may be applied, but it is preferable to apply a rotary screen process to secure the surface smoothness of the cover layer 30.
  • the cover layer including the PU material may be formed on the foam layer including the PVC material without the need for the adhesive layer.
  • the embossed pattern was previously formed using a release paper, in the present invention, the embossed pattern may be directly formed by a vacuum embossing process without using a release paper by forming a cover layer including a PU material by performing a rotary screen process. .
  • a gravure coating process is performed to form an aqueous surface treatment layer 40 on the label layer 30.
  • the gravure coating process may include a direct gravure coating, a reverse gravure coating, an offset gravure coating, and the like.
  • a direct gravure coating is one in which coating is performed on a substrate between a roller formed of an elastic rubber and a roller containing a coating liquid, and the rotational speed of these rollers may be the same.
  • the rotation direction of the substrate and the rollers may be reversed.
  • Reverse gravure coating has the opposite direction of rotation of the substrate and the rollers, it is possible to control the application amount by adjusting the speed of the roller.
  • the respective rollers are driven independently of each other, and the coating layer can be uniformly formed in a small amount by high speed.
  • the aqueous coating composition is as described above, and by forming the aqueous surface treatment layer 40, the artificial leather of the present invention can improve scratch resistance, stain resistance, and provide an environmentally friendly effect.
  • An embossed pattern (not shown) is formed on the surface of the aqueous surface treatment layer 40.
  • the embossed pattern may be formed by performing a vacuum embossing process.
  • Vacuum embossing process is a method of transferring the embossed pattern by sucking the artificial leather under a vacuum gauge pressure of 0.04 ⁇ 0.07MPa.
  • the vacuum embossing process is performed at less than 0.04 MPa, it is difficult to form an embossed pattern and the cushioning feeling may be lowered.
  • the aqueous surface treatment layer 40 may be damaged or surface properties may be degraded.
  • the vacuum embossing process may be performed at a temperature of 160 ⁇ 180 °C.
  • the temperature is less than 160 ° C., it is difficult to sufficiently form the embossed pattern.
  • the temperature is more than 180 ° C., the surface properties of the artificial leather become rough or torn due to high temperature.
  • the artificial leather for automobile interior material of the present invention is excellent in surface smoothness and can form a uniform layer through a manufacturing method such as a calender process and a rotary screen process.
  • a manufacturing method such as a calender process and a rotary screen process.
  • a laminated structure including a PVC foam layer, a PU label layer, and an aqueous surface treatment layer, there is an effect of excellent surface properties and thickness of the artificial leather.
  • the foam layer was formed from a foam layer composition containing 5 parts by weight of azodicarbonamide as a foaming agent with respect to 100 parts by weight of polyvinyl chloride resin.
  • a polyurethane resin was applied onto the foam layer by a rotating screen roller to perform a rotary screen process to form a label layer.
  • an aqueous coating composition comprising a polyurethane resin, toluene diisocyanate as a curing agent, and water as an aqueous solvent.
  • a gravure coating process was performed using this, and an aqueous surface treatment layer having a thickness of 20 ⁇ m was formed on the label layer.
  • a vacuum embossing process is performed on the resultant formed with the aqueous surface treatment layer under a vacuum gage pressure of 0.06 MPa and a temperature of 170 to form an embossed pattern on the surface of the aqueous surface treatment layer for automobile interior materials. Artificial leather was produced.
  • a laminate in which a label layer and an aqueous surface treatment layer were laminated from a pre-foam layer formed of a foam layer composition containing a polyvinyl chloride resin and a polyvinyl chloride resin on a fabric layer were laminated. Subsequently, after the laminate was foamed at a temperature of 220, an artificial leather for automobile interior was manufactured in the same manner as in Example 1, except that the vacuum embossing process was performed.
  • a laminate in which an adhesive layer, a pre-foamed layer formed from a foamed layer composition containing a polyurethane resin, and an aqueous surface treatment layer were laminated on a fabric layer was prepared. Subsequently, after the laminate was foamed at a temperature of 220, a foam layer having a thickness of 50 ⁇ m was formed, except that a roll pressing process was performed under a pressure of 4 MPa using an embossing roll having an embossed pattern. Artificial leather for automobile interior was manufactured in the same manner as in Example 1.
  • An artificial leather for automobile interior was manufactured in the same manner as in Example 1, except that the cover layer was formed by performing a comma coating.
  • Pore / break wrinkles on the surface of the product When the porosity and break wrinkles occurred in the product surface of less than 10%, "none", if more than 10% occurred "marked”.
  • Example 1 the artificial leather for automobile interior materials prepared in Example 1 exhibits excellent cushioning feeling due to high ductility because foam cells are formed in the foam layer.
  • Example 1 by performing the vacuum embossing process in Example 1, it can be seen that the embossed pattern (not shown) on the surface of the aqueous surface treatment layer is formed to have excellent surface texture and surface durability on the artificial leather.
  • Comparative Example 3 formed by performing a comma coating instead of the cover layer was performed with a rotary screen, the surface of the cover layer was not smooth, and the tearing occurred.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un cuir artificiel pour un matériau d'intérieur de véhicule, ayant une excellente propriété de surface et une excellente sensation d'amortissement. Selon la présente invention, le cuir artificiel pour un matériau d'intérieur de véhicule comprend : une couche de tissu ; une couche de mousse formée sur la couche de tissu ; une couche de revêtement formée sur la couche de mousse ; et une couche de traitement aqueux de surface formée sur la couche de revêtement, un motif gaufré étant formé sur la surface de la couche de traitement aqueux de surface.
PCT/KR2017/004428 2016-04-29 2017-04-26 Cuir artificiel pour matériau d'intérieur de véhicule et son procédé de fabrication Ceased WO2017188722A1 (fr)

Applications Claiming Priority (2)

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KR10-2016-0052678 2016-04-29
KR1020160052678A KR101816392B1 (ko) 2016-04-29 2016-04-29 자동차 내장재용 인조가죽 및 그의 제조방법

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WO2017188722A1 true WO2017188722A1 (fr) 2017-11-02

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WO (1) WO2017188722A1 (fr)

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CN108755173A (zh) * 2018-05-07 2018-11-06 安徽索亚装饰材料有限公司 一种皮雕用人造革处理工艺
CN110983806A (zh) * 2019-12-27 2020-04-10 广东天安新材料股份有限公司 一种pvc发泡人造革及其制备方法
CN112431036A (zh) * 2020-11-19 2021-03-02 苏州贝斯特装饰新材料有限公司 一种高耐磨pvc人造革后处理方法及pvc人造革
EP4575061A4 (fr) * 2022-09-06 2025-11-26 Moritsune Co Ltd Tissu et procédé de production de tissu

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KR101942662B1 (ko) * 2017-09-27 2019-01-25 (주)엘지하우시스 자동차 내장재용 인조가죽 및 그의 제조방법
KR102014372B1 (ko) * 2018-01-08 2019-08-26 코오롱글로텍주식회사 시트커버 및 그 제조방법
KR102367362B1 (ko) 2018-05-11 2022-02-24 (주)엘엑스하우시스 인조가죽 제조방법 및 이로부터 제조된 인조가죽
WO2020067658A1 (fr) * 2018-09-28 2020-04-02 주식회사 엘지하우시스 Cuir artificiel pour matériau d'intérieur d'automobile et son procédé de fabrication
KR102516409B1 (ko) 2018-11-26 2023-04-03 (주)엘엑스하우시스 자동차 내장재용 시트 및 그의 제조방법
JP7303042B2 (ja) * 2019-06-24 2023-07-04 セーレン株式会社 合成皮革
KR102459668B1 (ko) 2021-12-21 2022-10-27 에콜그린텍(주) 대나무 섬유와 pla 섬유를 이용한 천연 인조가죽 제조방법 및 대나무 섬유와 pla 섬유를 이용한 천연 인조가죽

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KR101450604B1 (ko) * 2012-04-09 2014-10-23 한화첨단소재 주식회사 자동차 시트커버용 인조가죽 및 그 제조방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108755173A (zh) * 2018-05-07 2018-11-06 安徽索亚装饰材料有限公司 一种皮雕用人造革处理工艺
CN110983806A (zh) * 2019-12-27 2020-04-10 广东天安新材料股份有限公司 一种pvc发泡人造革及其制备方法
CN112431036A (zh) * 2020-11-19 2021-03-02 苏州贝斯特装饰新材料有限公司 一种高耐磨pvc人造革后处理方法及pvc人造革
EP4575061A4 (fr) * 2022-09-06 2025-11-26 Moritsune Co Ltd Tissu et procédé de production de tissu

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KR20170123431A (ko) 2017-11-08

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