CN111169112A - Leather synthesis process - Google Patents

Leather synthesis process Download PDF

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Publication number
CN111169112A
CN111169112A CN202010024794.0A CN202010024794A CN111169112A CN 111169112 A CN111169112 A CN 111169112A CN 202010024794 A CN202010024794 A CN 202010024794A CN 111169112 A CN111169112 A CN 111169112A
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CN
China
Prior art keywords
leather
pvb
synthesis process
mixed material
process according
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202010024794.0A
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Chinese (zh)
Inventor
李兰兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Guofeng Chemical Raw Material Co Ltd
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Dongguan Guofeng Chemical Raw Material Co Ltd
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Application filed by Dongguan Guofeng Chemical Raw Material Co Ltd filed Critical Dongguan Guofeng Chemical Raw Material Co Ltd
Priority to CN202010024794.0A priority Critical patent/CN111169112A/en
Publication of CN111169112A publication Critical patent/CN111169112A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0285—Condensation resins of aldehydes, e.g. with phenols, ureas, melamines
    • 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
    • B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2329/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2467/08—Polyesters modified with higher fatty oils or their acids, or with resins or resin acids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

This technology provides a leather synthesis technology, changes PVB's chemical structure through the modifier, makes the shape change of PVB molecule, and then changes PVB self hardness and obtain softening, secondly, cooperation smell removing agent, colouring material and certain temperature recombination fuse the membrane, moreover, the mode that utilizes the heat laminating makes glue be heated and melts and provide an adhesion, base cloth and membrane integrated into one piece, to sum up, utilize this technique can carry out secondary operation to the PVB material to with the utilization ratio maximize of PVB material, realize the effect of waste material recirculation, secondly, solved the extravagant problem of background art material, be favorable to the environmental protection.

Description

Leather synthesis process
Technical Field
The invention relates to the field of fabric manufacturing processes, in particular to a leather synthesis process.
Background
The film prepared in the PVB (polyvinyl butyral) application field is used for manufacturing an interlayer material of safety glass, and the safety glass has good transparency and high impact strength and is widely used in the aviation and automobile fields.
The paint industry is used for manufacturing metal prime paint and cold-proof paint with strong corrosion resistance, rust resistance and good adhesive force and water resistance.
The ceramic industry is used for manufacturing film stained paper with bright patterns and can replace ceramic stained paper. The resin industry is used to produce plastics to replace nonferrous metals such as steel and lead, and can be used to prepare various adhesives.
The adhesive is widely used for bonding wood, ceramics, metal, plastics, leather, laminated materials and the like. The textile industry is used to make fabric treating agents and bobbins.
The food industry is used to make non-toxic packaging materials. The paper industry is used to make paper treatment agents. In addition, the composite material can also be used for manufacturing shrink-proof agents, stiffening agents and other waterproof materials.
In conclusion, the PVB material has a wide application range and strong performance stability, and is reflected in various industries.
In the current automotive field, PVB materials are used in the interlayer of glass, and their chemical structure is stable and hardness is high, so that the waste PVB materials are not suitable for secondary utilization, for example, if it is necessary to degrade it, it is costly, and a large amount of PVB materials are not used effectively.
Disclosure of Invention
In order to solve the problems, the invention provides a leather synthesis process, aiming at solving the problem of large waste caused by the unreasonable utilization of PVB materials in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that: a leather synthesis process is characterized by comprising
S1: preparing a blend comprising suitable poly (vinyl butyral) particles, odor eliminating agent, colorant, and modifying agent;
s2: heating the mixed material at a suitable temperature to convert the mixed material from a solid state to a molten state;
s3: sequentially extruding and extending the viscous flow-state mixed material to form a product film;
s4: the base cloth with the glue is laid on the film, and the leather is synthesized by a hot bonding mode.
Further, in step S2, after the mixed material is heated, solid impurities in the mixed material are filtered out.
Further, the method includes a step S5 of foaming and embossing the leather in sequence.
Further, the odor removing agent is a multi-oxygen epoxy aluminum salt.
Further, the modifier is an alkyd polymer.
Further, the heating temperature in the step S2 is between 110 and 120 degrees.
Further, the polyvinyl butyral particles accounted for 80% by weight of the blend.
The invention has the beneficial effects that:
this technology changes PVB's chemical structure through the transformation agent, makes the shape change of PVB molecule, and then changes the hardness of PVB self and obtain softening, and secondly, cooperation smell removing agent, colouring material and certain temperature recombination fuse the membrane, and moreover, the mode that utilizes the heat laminating makes glue be heated and melts and provide an adhesion, base cloth and membrane integrated into one piece, to sum up, utilize this technique can carry out secondary operation to the PVB material to with the utilization ratio maximize of PVB material, realize waste material recycle effect, secondly, solved the extravagant problem of background art material, be favorable to the environmental protection.
Drawings
FIG. 1 is a report of formaldehyde content measurement of leather.
FIG. 2 is a report of leather testing for dimethyl fumarate content.
Fig. 3 is a report of the detection of Volatile Organic Compound (VOC) content in leather.
FIG. 4 is a report of the leather detecting the contents of lead (Pb), cadmium (Cd), mercury (Hg) and hexavalent chromium (Cr6 +).
FIG. 5 is a test report of the leather for detecting polybrominated biphenyl content and polybrominated diphenyl ether content.
FIG. 6 is a report of leather tests for the content of di (2-ethyl) hexyl phthalate (DEHP), di-n-butyl phthalate (DBP), Butyl Benzyl Phthalate (BBP), and diisobutyl phthalate (DIBP).
Fig. 7 is a first leather substance detection report.
Fig. 8 is a second leather substance detection report.
Fig. 9 is a third leather substance detection report.
Fig. 10 is a fourth leather substance detection report.
Fig. 11 is a fifth substance detection report for leather.
Fig. 12 is a six substance detection report for leather.
Fig. 13 is a seventh substance detection report for leather.
Fig. 14 is a substance detection report eight for leather.
Fig. 15 is a substance detection report nine for leather.
Fig. 16 is a material detection report for leather ten.
Fig. 17 is an eleventh leather substance detection report.
Fig. 18 is a twelve substance detection report for leather.
Fig. 19 is a matter detection report thirteen for leather.
Fig. 20 is a fourteen leather substance detection report.
Fig. 21 is a substance detection report fifteen for leather.
Fig. 22 is a substance detection report sixteen for leather.
Fig. 23 is a substance detection report seventeen for leather.
Fig. 24 is a substance detection report eighteen for leather.
Detailed Description
The invention relates to a leather synthesis process, which is characterized by comprising
S1: preparing a blend comprising suitable poly (vinyl butyral) particles, odor eliminating agents, colorants, modifiers, fillers;
s2: heating the mixed material at a suitable temperature to convert the mixed material from a solid state to a molten state;
s3: sequentially extruding and extending the viscous flow-state mixed material to form a product film;
s4: the base cloth with the glue is laid on the film, and the leather is synthesized by a hot bonding mode.
The use principle of the invention is as follows:
the process changes the chemical structure of PVB through a modifying agent, changes the shape of PVB molecules, further changes the hardness of PVB to soften, then, combines a deodorant, a pigment and a certain temperature to recombine and fuse into a film, and further, utilizes a hot bonding mode to heat and melt glue to provide adhesive force, and the base cloth and the film are integrally formed;
it is noted that the odor removal agent drives off the odor of the poly (vinyl butyral) particles and the colorant during the process;
the leather produced by the process can not generate peculiar smell, can avoid secondary pollution caused by products, and is suitable for the development trend of corresponding times, so that the dependence on non-renewable energy sources can be reduced, the emission of PVB materials in waste materials and the environmental load caused by PVB material treatment can be reduced, and the sustainable development of the society can be facilitated.
Further, in step S2, after the mixed material is heated, solid impurities in the mixed material are filtered out;
in the present embodiment, step S2 is implemented by a screw extruder, feeding the polyvinyl butyral pellets to the screw extruder, extruding the polyvinyl butyral pellets by three different screws, plasticizing the polyvinyl butyral pellets at a high temperature, and extruding the plasticized polyvinyl butyral pellets from an output end of the screw extruder, wherein the thinner the calendering time is, the thinner the film is, and the thickness of the film can reach 0.3 mm;
it should be noted that, during the high-temperature stirring process of the screw extruder, it is avoided that a part of the polyvinyl butyral particles enter the next step without being melted, the mixed material needs to be filtered, and the polyvinyl butyral particles in the non-melted state are separated by using a filtering method; the screw extruder is the prior art, and the specific structure thereof is not described in detail.
Further, the method comprises step S5, foaming and embossing the leather in sequence; the foaming and embossing are used for processing the leather, so that different grains are generated on the surface of the leather.
Further, the odor removing agent is a multi-oxygen epoxy aluminum salt.
Further, the modifier is an alkyd polymer.
Further, the heating temperature in the step S2 is between 110 and 120 degrees.
Further, the polyvinyl butyral particles accounted for 80% by weight of the blend.
In the specific embodiment, the polyvinyl butyral particles account for 100 parts, the modifier accounts for 5-25 parts, the filler accounts for 5-8 parts, the processing aid accounts for 2-4 parts, and the pigment accounts for 3-7 parts, wherein the total mass of the modifier, the filler, the processing aid and the pigment accounts for 20% of the mixed material by weight.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.

Claims (7)

1. A leather synthesis process is characterized by comprising
S1: preparing a blend comprising suitable poly (vinyl butyral) particles, odor eliminating agent, colorant, and modifying agent;
s2: heating the mixed material at a suitable temperature to convert the mixed material from a solid state to a molten state;
s3: sequentially extruding and extending the viscous flow-state mixed material to form a product film;
s4: the base cloth with the glue is laid on the film, and the leather is synthesized by a hot bonding mode.
2. A leather synthesis process according to claim 1, characterised in that: in step S2, after the mixed material is heated, solid impurities in the mixed material are filtered out.
3. A leather synthesis process according to claim 1, characterised in that: further comprises a step S5 of foaming and embossing the leather in sequence.
4. A leather synthesis process according to any one of claims 1 to 3, characterised in that: the smell removing agent is a multi-oxygen epoxy aluminum salt.
5. A leather synthesis process according to any one of claims 1 to 3, characterised in that: the modifier is an alkyd polymer.
6. A leather synthesis process according to any one of claims 1 to 3, characterised in that: the heating temperature in the step S2 is between 110 and 120 degrees.
7. A leather synthesis process according to any one of claims 1 to 3, characterised in that: the polyvinyl butyral particles account for 80% of the mixed material by weight.
CN202010024794.0A 2020-01-10 2020-01-10 Leather synthesis process Pending CN111169112A (en)

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Application Number Priority Date Filing Date Title
CN202010024794.0A CN111169112A (en) 2020-01-10 2020-01-10 Leather synthesis process

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Application Number Priority Date Filing Date Title
CN202010024794.0A CN111169112A (en) 2020-01-10 2020-01-10 Leather synthesis process

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CN111169112A true CN111169112A (en) 2020-05-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3929351A1 (en) * 2020-06-18 2021-12-29 Chun Wei Lin Synthetic leather

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044820A1 (en) * 1998-03-04 1999-09-10 E.I. Du Pont De Nemours And Company Delamination-resistant laminated glass structures
CN201437574U (en) * 2009-04-20 2010-04-14 林俊伟 Multifunctional layered object
CN105400079A (en) * 2015-12-29 2016-03-16 上海瀚氏模具成型有限公司 Low-smell reinforced PP plastic and preparation method thereof
CN105694209A (en) * 2016-02-03 2016-06-22 轩脉家居科技（上海）有限公司 Decorative anti-aging low-odor light-weight composite board
CN105729923A (en) * 2016-02-03 2016-07-06 轩脉家居科技（上海）有限公司 Antibacterial low-odor light composite board for decoration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044820A1 (en) * 1998-03-04 1999-09-10 E.I. Du Pont De Nemours And Company Delamination-resistant laminated glass structures
CN201437574U (en) * 2009-04-20 2010-04-14 林俊伟 Multifunctional layered object
CN105400079A (en) * 2015-12-29 2016-03-16 上海瀚氏模具成型有限公司 Low-smell reinforced PP plastic and preparation method thereof
CN105694209A (en) * 2016-02-03 2016-06-22 轩脉家居科技（上海）有限公司 Decorative anti-aging low-odor light-weight composite board
CN105729923A (en) * 2016-02-03 2016-07-06 轩脉家居科技（上海）有限公司 Antibacterial low-odor light composite board for decoration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3929351A1 (en) * 2020-06-18 2021-12-29 Chun Wei Lin Synthetic leather

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Application publication date: 20200519