WO2015119395A1 - Cuir synthétique et procédé de fabrication d'un cuir synthétique - Google Patents

Cuir synthétique et procédé de fabrication d'un cuir synthétique Download PDF

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Publication number
WO2015119395A1
WO2015119395A1 PCT/KR2015/000863 KR2015000863W WO2015119395A1 WO 2015119395 A1 WO2015119395 A1 WO 2015119395A1 KR 2015000863 W KR2015000863 W KR 2015000863W WO 2015119395 A1 WO2015119395 A1 WO 2015119395A1
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WO
WIPO (PCT)
Prior art keywords
synthetic leather
layer
printing
release paper
coating
Prior art date
Application number
PCT/KR2015/000863
Other languages
English (en)
Korean (ko)
Inventor
하영문
Original Assignee
하영문
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 하영문 filed Critical 하영문
Priority to CN201580007112.2A priority Critical patent/CN106232896A/zh
Publication of WO2015119395A1 publication Critical patent/WO2015119395A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/003—Transfer printing
    • D06P5/007—Transfer printing using non-subliming dyes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/748—Releasability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/75—Printability

Definitions

  • the present invention relates to a synthetic leather and a method for manufacturing the synthetic leather, and more particularly to a method for manufacturing synthetic leather and synthetic leather having a variety of shapes and colors on the surface.
  • leather is divided into natural leather and artificial leather (synthetic leather), the raw material of artificial leather is largely used polyurethane, silicone, PVC, etc. Here, it is typically referred to as polyurethane.
  • Natural leather can be commercialized as it is dyed and dyed, but it is more expensive than artificial leather. Therefore, the development of leather goods using artificial leather has been actively made.
  • Polyurethane is mainly used when manufacturing such artificial leather, and generally, a solvent and a toner are mixed in a polyurethane resin, and the blended polyurethane resin is applied to a release paper, and then bonded to a fabric, and then aged and peeled. Next, artificial leather is manufactured by post-treatment such as printing on the surface of artificial leather.
  • Sublimation transfer is used to print various shapes and colors on the polyurethane surface.
  • the sublimation transfer is a digital printing method combining a printing technique and a dyeing technique.
  • the sublimation transfer is performed by bonding a transfer paper printed with a transfer ink without a plate making process to a transfer object and thermally compressing it at a specific temperature and pressure of 160 to 220 degrees.
  • the ink on the transfer paper is then vaporized without undergoing a liquid process at a high temperature, and at the same time, when the vaporized dye flows into the through hole on the surface of the transfer object and the temperature drops again, the gaseous dye becomes the surface of the transfer object. It remains as a third polymer material in the infiltrated state and is integrated in a state where no protrusions or layers are formed.
  • the transfer paper and the polyurethane do not withstand high heat, the transfer paper does not peel off, and the surface made of the polymer layer of the polyurethane resin Not only does not form the pattern is not obvious, but the adhesion of the ink is inferior, and as time passes after the transfer, the pattern gradually fades with the evaporation of the sublimable dye, there is a problem of lowering the quality of the product.
  • Korean Patent Laid-Open Publication No. 2002-0036983 discloses a method for sublimating and transferring a pattern on a polyurethane surface and a polyurethane product transferred by the method.
  • the prior art is a one-component type to solve the conventional problem that when the sublimation transfer to the wet or dry polyurethane surface, the polyurethane surface does not endure high heat (glue) and adheres to the transfer paper so that the sublimation transfer is impossible.
  • the silicone is added, mixed, and then dried to prepare a polyurethane product, so that the transfer paper and the polyurethane surface do not adhere to each other and are easily separated.
  • the prior art still uses the sublimation transfer printing by attaching the transfer paper to the polyurethane layer and printing the dye into the polyurethane surface by using heat and pressure, the pattern formation on the polyurethane surface as well as the adhesion of the ink Falling, and as time passes after the transfer, the pattern gradually fades with the evaporation of the sublimable dye, which still has the problem of degrading the quality of the product.
  • an object of the present invention is to provide a synthetic leather and a method for producing a synthetic leather that can produce a variety of shapes and colors on the surface of the synthetic leather.
  • the present invention is to provide a method for producing a synthetic leather and synthetic leather that can improve the quality of the synthetic leather by the long lasting various shapes and colors formed on the synthetic leather without evaporation or bleeding of the dye.
  • the method of manufacturing a synthetic leather of an embodiment of the present invention is a step of forming a printing layer on a release paper, forming a coating layer by applying a coating solution on a release paper on which the printing layer is formed, and curing, on the coating layer Adhering the fabric through an adhesive or hot lamination to form a fabric layer, and immediately or after aging and separating only the release, wherein the print layer and the coating layer form the surface of the synthetic leather.
  • the forming of the printing layer on the release paper is characterized in that the printing layer has various shapes and colors through gravure printing or offset printing.
  • the coating liquid is a polyurethane resin
  • the step of applying a coating liquid on a release paper on which a printing layer is formed and then curing the coating layer to form a coating layer through a coater (coater) to a predetermined thickness is characterized in that the printing layer is applied on the release paper formed.
  • the printing layer and the coating layer is the same material
  • the step of forming a coating layer by applying a coating solution on a release paper on which the printing layer is formed to form a coating layer is cured polyurethane resin on the release paper in advance
  • Polyurethane resin is applied on the print layer
  • the print layer and the coating layer is characterized in that it is integrally formed by curing.
  • synthetic leather which is another embodiment of the present invention is a polyurethane resin is cured on a release paper, the polyurethane resin is applied to the printed layer formed on the pre-formed print layer while the printing layer and the coating layer are bonded and integrally It is characterized in that the surface of the synthetic leather is formed.
  • the gravure printing or offset printing in advance to form a printing layer having a variety of shapes and patterns on the release paper in advance and then the printing when forming a coating layer formed by applying a liquid polyurethane resin on the printing layer
  • the layer and the coating layer are integrally combined so that the printed layer is embedded on the surface of the synthetic leather as it is (the printed layer embossed on the release paper appears intaglio on the surface of the synthetic leather), thereby creating a design aesthetics freely.
  • the transfer paper and polyurethane generated when printing on the surface of the synthetic leather through the sublimation transfer on the manufactured synthetic leather does not withstand high heat (transfer paper) does not peel off and
  • transfer paper On the surface of the polymer layer of polyurethane resin, the pattern formation by sublimation transfer does not occur clearly, and the adhesiveness of the ink is inferior, and as time passes after transfer, the pattern gradually fades with the evaporation of the sublimable dye to improve the quality of the product. The problem of deterioration can be prevented at the source.
  • FIG. 1 is a flowchart illustrating a method of manufacturing synthetic leather according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view showing a manufacturing process of synthetic leather for each manufacturing process step according to an embodiment of the present invention.
  • Figure 3 is a process chart showing a process of forming a coating layer by applying a liquid polyurethane resin solution to a release paper formed with a printing layer according to an embodiment of the present invention.
  • coating layer 31 polyurethane resin
  • Characterized by a method for producing a synthetic leather characterized in that the printing layer and the coating layer forms the surface of the synthetic leather.
  • FIG. 1 is a flowchart illustrating a method for manufacturing synthetic leather according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view showing a manufacturing process of synthetic leather for each manufacturing process step according to an embodiment of the present invention.
  • a printing layer 20 is formed on a release paper 10 (S21, see FIG. 2A), and a release paper on which the printing layer 20 is formed ( 10) by applying a polyurethane resin on the coating layer 30 is formed and cured (S22, Fig. 2 (b)).
  • the fabric layer 50 is formed by applying the adhesive 40 on the coating layer 30 or by attaching the fabric through a hot lamination method (S23, FIG. 2C).
  • the release paper 10 is separated to produce a synthetic leather 500 having various shapes and colors (hereinafter referred to as a pattern) printed on the surface (S24, FIG. 2 (d)).
  • synthetic leather using a polyurethane resin is a continuous synthesis in which a polyurethane resin is applied on a release paper, and then cured and an adhesive is formed thereon to form an adhesive layer. It consists of a leather manufacturing process. Subsequently, to produce various patterns on the surface of the manufactured synthetic leather, the transfer paper on which the various patterns are printed is placed on the surface of the synthetic leather, and then the heat and pressure are applied so that the printed pattern on the transfer paper is transferred to the surface of the synthetic leather. The printing process using the judicial method must be carried out.
  • the synthetic leather manufacturing method of the present invention is not printed (or transferred) on the surface of the synthetic leather in which the printing layer printed on the transfer paper is prepared in advance, but on the surface of the synthetic leather during the manufacturing process of the synthetic leather using the polyurethane resin. No additional process is required to produce various patterns. That is, the synthetic leather manufacturing method of the present invention uses a release paper 10 having a preprinted print layer 20 having various patterns printed through gravure printing or offset printing.
  • the release paper 10 formed with the printing layer 20 (S21) by coating and curing a polyurethane resin in liquid phase to form a coating layer (S22), fabric adhesion and maturation (S23) and only release paper 10 (S24)
  • the printing layer and the coating layer are integrally attached to form the surface of the synthetic leather to produce various patterns.
  • the process of forming the printing layer on the release paper (S21) may be performed through gravure printing or offset printing on the release paper.
  • a variety of patterns may be printed on a release paper by using a polyurethane resin as a material forming the print layer 20 and gravure printing. That is, by forming a printing layer having various patterns desired by an operator through gravure printing, and by using a polyurethane resin as the material forming the printing layer, the same material on the release paper on which the printing layer is formed During the application of the urethane resin to form a coating layer, the printing layer and the coating layer may be integrated to form the surface of the synthetic leather.
  • the release paper 10 release paper
  • a liquid polyurethane resin is applied to form a coating layer 30 on a printing layer 20 that is already solidified. It first comes into contact with the entire surface of the substrate.
  • the printing layer 20 and the coating layer made of the same material during the curing of the liquid polyurethane resin for example, drying for 1 to 3 minutes in a heat chamber of about 80 to 180 ° C.
  • the printing layer continuously ( 30) are bonded and integrated.
  • a predetermined adhesive is not required to integrate the print layer 20 and the coating layer 30, which means that the printing layer 20 made of solid polyurethane is coated with the coating layer while the liquid polyurethane resin is cured.
  • the polyurethane resin may be used by adjusting the viscosity in a liquid state by using MEK and DMF as a solvent.
  • the synthetic leather manufacturing method of the present invention such as a sublimation transfer to transfer the pattern printed on the transfer paper on the surface of the synthetic leather already manufactured high temperature (for example 200 ⁇ 250 °C) and pressure (4 ⁇ 8kg / Cm 2)
  • the printing layer 20 of the present invention is integrated with the coating layer 30 without deformation due to heat and pressure in the form of a printed pattern, thereby being produced on the surface of the synthetic leather as it is. I can raise a feeling.
  • Figure 3 is a process chart showing a process of forming a coating layer by applying a liquid polyurethane resin solution to a release paper formed with a printing layer according to an embodiment of the present invention.
  • a coater (coater, coating machine) may be used to adjust the thickness (eg, about 1 mm) to which the polyurethane resin 31 is applied.
  • the coater has a knife 101 and a cutting roller 102 having a predetermined interval 200, and the release paper 10 having the printing layer 20 formed thereon is rotated by the cutting roller 102. It is injected at intervals 200. Then, on the release paper 10 on which the print layer 20 of the front end of the coater is formed, the liquid polyurethane resin 31 is added and the release paper 10 on which the print layer 20 is formed together with the liquid polyurethane resin 31.
  • the polyurethane resin When the polyurethane resin is flattened by the knife 101 fixed when passing through the predetermined interval 200, the polyurethane resin is formed to a predetermined thickness on the release paper 10 having the printing layer 20 formed in the rear coater area.
  • the coating layer 30 may be formed by being applied and then cured.
  • the process of forming a fabric layer by pasting the fabric on the coating layer (S23) is followed by applying an aqueous adhesive or an oil-based adhesive on the coating layer, drying and pasting the fabric, or through hot lamination using heat.
  • the fabric is bonded to form the fabric layer 50.
  • the process (S24) of separating or aging only the release paper 10 immediately and then releasing only the release paper 10 the printed layer and the coating layer are integrally formed, thereby forming a synthetic leather having a surface of synthetic leather.
  • the printing layer is integrally combined with the coating layer during the curing of the liquid polyurethane resin to form a synthetic leather surface
  • the shape of the printed layer having a directing without being deformed can improve the quality of synthetic leather.
  • the printing layer can be formed on the surface of the synthetic leather without changing the manufacturing process of the synthetic leather, no additional facility is required to be invested, and as the continuous process proceeds, the production efficiency can be improved.
  • the printing layer and the coating layer when forming a coating layer formed by applying a liquid polyurethane resin on the printing layer after freely forming a printing layer having various shapes and patterns on the release paper in advance through gravure printing or offset printing.
  • the printed layer is embedded on the surface of synthetic leather as it is (the printed layer embossed on the release paper appears intaglio on the surface of synthetic leather), so that the design aesthetics can be freely produced. It is a very likely invention.

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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)

Abstract

La présente invention concerne un procédé de fabrication de cuir synthétique selon lequel une couche d'impression est formée à l'avance sur du papier intercalaire de manière à disposer de différentes formes et couleurs, une résine liquide de polyuréthane en phase liquide est appliquée à la couche d'impression durcie, formant ainsi une couche de revêtement, et la couche d'impression et la couche de revêtement sont liées et intégrées pendant que la couche de revêtement est durcie, ce qui permet de réaliser diverses formes et couleurs sur la surface du cuir synthétique. Selon la présente invention, du cuir synthétique ayant différentes formes et couleurs sur la surface de celui-ci peut être fabriqué par le biais d'un procédé de fabrication de cuir synthétique continu unique, lequel utilise des installations de processus de fabrication de cuir synthétique sans aucun changement, sans qu'il soit nécessaire de mettre en œuvre un processus de fabrication de cuir synthétique pour la fabrication de cuir synthétique en utilisant du polyuréthanne à l'avance, suivi par un procédé d'impression indépendant pour réaliser des impressions sur la surface du cuir synthétique fabriqué, ce qui permet d'améliorer le rendement de production.
PCT/KR2015/000863 2014-02-04 2015-01-27 Cuir synthétique et procédé de fabrication d'un cuir synthétique WO2015119395A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580007112.2A CN106232896A (zh) 2014-02-04 2015-01-27 合成皮革及合成皮革的制造方法

Applications Claiming Priority (2)

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KR10-2014-0012401 2014-02-04
KR1020140012401A KR101399948B1 (ko) 2014-02-04 2014-02-04 합성피혁 및 합성피혁의 제조방법

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WO2015119395A1 true WO2015119395A1 (fr) 2015-08-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108660784A (zh) * 2018-05-31 2018-10-16 海宁市硖石迅奇科技信息咨询服务部 一种经编pu包边条及其制造方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101656641B1 (ko) * 2016-01-28 2016-09-09 엄기천 무늬가 형성된 열가소성 폴리우레탄 필름의 제조방법 및 이를 포함하는 제품의 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002201572A (ja) * 2000-12-26 2002-07-19 Achilles Corp 皮革状シート物
JP2005511919A (ja) * 2001-12-17 2005-04-28 ジンソプ イ ポリウレタン人造皮革およびポリウレタン人造皮革の転写捺染方法
JP2007100289A (ja) * 2005-09-09 2007-04-19 Dainippon Ink & Chem Inc 皮革状物の製造方法
JP2008055686A (ja) * 2006-08-30 2008-03-13 Teijin Cordley Ltd シート状物の製造方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102758360B (zh) * 2012-07-06 2014-04-09 河南永合塑胶有限公司 一种基于离型纸转移涂层法的聚氨酯合成革清洁生产工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002201572A (ja) * 2000-12-26 2002-07-19 Achilles Corp 皮革状シート物
JP2005511919A (ja) * 2001-12-17 2005-04-28 ジンソプ イ ポリウレタン人造皮革およびポリウレタン人造皮革の転写捺染方法
JP2007100289A (ja) * 2005-09-09 2007-04-19 Dainippon Ink & Chem Inc 皮革状物の製造方法
JP2008055686A (ja) * 2006-08-30 2008-03-13 Teijin Cordley Ltd シート状物の製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108660784A (zh) * 2018-05-31 2018-10-16 海宁市硖石迅奇科技信息咨询服务部 一种经编pu包边条及其制造方法

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CN106232896A (zh) 2016-12-14

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