CN106544881B - A kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum - Google Patents

A kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum Download PDF

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Publication number
CN106544881B
CN106544881B CN201610938541.8A CN201610938541A CN106544881B CN 106544881 B CN106544881 B CN 106544881B CN 201610938541 A CN201610938541 A CN 201610938541A CN 106544881 B CN106544881 B CN 106544881B
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parts
gypsum
crystal whisker
foaming
surface layer
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CN106544881A (en
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刘以东
徐广梅
崔庆
何双跃
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DONGTAI FUAN SYNTHETIC MATERIALS CO LTD
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DONGTAI FUAN SYNTHETIC MATERIALS CO LTD
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Publication of CN106544881A publication Critical patent/CN106544881A/en
Priority to PCT/CN2017/089337 priority patent/WO2018076729A1/en
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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
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • D06N3/0045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers obtained by applying a ready-made foam layer; obtained by compressing, crinkling or crushing a foam layer, e.g. Kaschierverfahren für Schaumschicht
    • 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
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • 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
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • 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
    • D06N2203/00—Macromolecular materials of the coating layers
    • D06N2203/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N2203/045—Vinyl (co)polymers
    • D06N2203/048—Polyvinylchloride (co)polymers
    • 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
    • D06N2209/14—Properties of the materials having chemical properties
    • D06N2209/143—Inert, i.e. inert to chemical degradation, corrosion resistant
    • 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
    • D06N2209/1635—Elasticity
    • 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
    • D06N2211/28—Artificial leather

Abstract

The invention discloses a kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum, including be successively bonded from inside to outside cloth-based material, foaming layer, surface layer；The foaming layer includes that component is as follows by weight: 95~105 parts of polyvinyl chloride resin, 40~50 parts of crystal whisker of gypsum, 40~50 parts of Paris white, 75~85 parts of plasticizer, 3.5~4.0 parts of stabilizer, 4.5~5.5 parts of foaming agent, 9.5~10.5 parts of color cake；The surface layer includes that component is as follows by weight: 65~75 parts of polyvinyl chloride resin, 10~20 parts of crystal whisker of gypsum, 46~52 parts of plasticizer, 1.5~3 parts of stabilizer, 4.5~5.5 parts of color cake；Preparation step is as follows: (1) calcining；(2) ingredient；(3) it is kneaded mill filtering；(4) calender lamination；(5) it foams；(6) the cooling winding of embossing, obtains the PVC foam artificial leather finished product based on crystal whisker of gypsum.Elasticity is good for artificial leather prepared by the present invention, wear-resisting, anti-corrosion acid resistance is strengthened.

Description

A kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum
Technical field
The present invention relates to the PVC foam artificial leathers and preparation method thereof based on crystal whisker of gypsum.
Background technique
Currently, people are very fanatic for the pursuit of fur clothing, but the fur clothing of corium with the rapid development of apparel industry Price is high, and maintenance is difficult, so the demand for artificial leather and synthetic leather gradually increases, and the hand as possessed by PU synthetic leather Feel the feature that pliability is good and the three-dimensional sense of lines is strong, therefore is largely used to manufacture on fur clothing.In the industry of synthetic leather, very greatly A part of PU synthetic leather rubs line process using wet process, but as PU synthetic leather will appear hydrolysis, product price it is somewhat expensive and The appearance of the technical problems such as coarse groove road product cannot be produced, the output of country's PU synthetic leather had centainly every year since 2005 The decline of amplitude.Currently, largely using PVC in rag trade, the control of cost may be implemented instead of PU by PVC System.Generally when preparing leather foaming layer using PVC, some fillers, such as Paris white etc. can be added, filler mainly rises To increase product size stability and reduce cost, still, at present by polyvinyl chloride resin prepare artificial leather poor flexibility, intolerant to Mill, anti-corrosion acid resistance are poor.
Summary of the invention
In view of the deficiencies of the prior art mentioned above, problems solved by the invention are as follows: providing one kind, elasticity is good, wear-resisting, anti- The strong PVC foam artificial leather of rotten acid resistance.
To solve the above problems, the technical solution adopted by the present invention is as follows:
A kind of PVC foam artificial leather based on crystal whisker of gypsum, including be successively bonded from inside to outside cloth-based material, foaming Layer, surface layer；The foaming layer includes that component is as follows by weight: 95~105 parts of polyvinyl chloride resin, 40~50 parts of crystal whisker of gypsum, carbon 40~50 parts of sour calcium powder, 75~85 parts of plasticizer, 3.5~4.0 parts of stabilizer, 4.5~5.5 parts of foaming agent, color cake 9.5~10.5 Part；The surface layer includes that component is as follows by weight: 65~75 parts of polyvinyl chloride resin, 10~20 parts of crystal whisker of gypsum, plasticizer 46~ 52 parts, 1.5~3 parts of stabilizer, 4.5~5.5 parts of color cake.
Further, the draw ratio of the crystal whisker of gypsum is 5 to 7.
Further, the polyvinyl chloride resin is three type polyvinyl chloride resins.
Further, the plasticizer is DOP dioctyl phthalate.
A kind of preparation method of the PVC foam artificial leather based on crystal whisker of gypsum, steps are as follows:
(1) it calcines: crystal whisker of gypsum being sent into calcining furnace and is calcined；
(2) ingredient: respectively will foaming layer component and surface layer component progress mix according to weight ratio；
(3) it is kneaded mill filtering: the foaming layer component prepared and surface layer component being carried out to mixing and mill respectively and carried out Filtering；
(4) calender lamination: foaming layer component and surface layer component are subjected to calendering formation by four-roll calender respectively, then Cloth-based material, foaming layer, surface layer are bonded by make-up machine, obtain semi-finished product；
(5) it foams: semi-finished product being sent into foaming machine and carry out foaming processing；
(6) the cooling winding of embossing: semi-finished product are embossed, cool down, are wound, the PVC foam based on crystal whisker of gypsum is obtained Artificial leather finished product.
Further, between 500 to 600 DEG C, the calcination time control exists for calcination temperature control in the step (1) 20 to 30min.
Further, foaming layer and surface layer are bonded first in the step (3), the foaming layer and surface layer carry out The temperature of fitting is controlled at 220 to 230 DEG C, is then bonded foaming layer and cloth-based material.
Further, foaming step foams by six stages in the step (5)；The first stage temperature Control is 172 to 178 DEG C；The temperature control of the second stage is 187 to 192 DEG C；The phase III temperature control It is 218 to 224 DEG C；The fourth stage temperature control is 233 to 237 DEG C；The described 5th phase temperature control for 228 to 232℃；The 6th phase temperature control is 188 to 192 DEG C；The duration in each stage is 2 to 3min.
Further, the laminate pressure of the make-up machine in the step (3) is 29kg/cm3To 31kg/cm3。
Beneficial effects of the present invention
1. the present invention increases crystal whisker of gypsum in surface layer and foaming layer, increasing a small amount of crystal whisker of gypsum in surface layer can To increase wearability and elasticity；The dosage of crystal whisker of gypsum is 40~50 parts in foaming layer, the dosage and calcium carbonate of crystal whisker of gypsum The dosage of powder is suitable, and the total dosage and polyvinyl chloride resin dosage of crystal whisker of gypsum and Paris white are suitable, can effectively play filling and Modified effect, crystal whisker of gypsum have columnar crystal structure, uniformly can adequately be dispersed in Paris white and the mixture of PVC In, crystal whisker of gypsum addition makes the performance of entire artificial leather carry out comprehensive promotion, and making artificial leather, elasticity is good, wear-resisting, anti-corrosion Acid resistance is strengthened.When preparing artificial leather, crystal whisker of gypsum is calcined first, is converted to crystal whisker of gypsum anhydrous Type can effectively enhance the wear-resisting property of the subsequent artificial leather prepared.
2. foaming layer and surface layer are bonded first in step (3) of the invention, what foaming layer and surface layer were bonded Temperature is controlled at 220 to 230 DEG C, is then bonded foaming layer and cloth-based material.This step first carries out foaming layer and surface layer The purpose of fitting is that foaming layer and surface layer are carried out high temperature fitting, polymerize the even closer of fitting, and increase the soft of product Softness and feel, then whole and cloth-based material fitting again；It and is in the prior art typically all first by foaming layer and cloth-based material Surface layer, is then fitted in foaming layer by fitting again, in this way due to being limited by cloth-based material, cannot not only carry out height Fitting, moreover, because the characteristic of the cloth of cloth-based material causes foaming layer to be bonded out-of-flatness, it cannot so as to cause surface layer and foaming layer Fitting polymerization well, eventually leads to poor product quality.
3. foaming stages of the invention have been arranged to six stages, the control of first stage temperature is 172 to 178 DEG C, second The temperature control in stage is 187 to 192 DEG C, and the control of phase III temperature is 218 to 224 DEG C, and the control of fourth stage temperature is 233 To 237 DEG C, the control of the 5th phase temperature is 228 to 232 DEG C, and the control of the 6th phase temperature is 188 to 192 DEG C, passes through six ranks The foaming of section, parabolically form is first stepped up and gradually reduces again temperature, reaches the best purpose of foaming, gas permeability obtains more Good promotion, and PVC and filler are further polymerize, flexibility further gets a promotion.
Specific embodiment
The content of present invention is described in further detail below.
Embodiment 1
A kind of PVC foam artificial leather based on crystal whisker of gypsum, including be successively bonded from inside to outside cloth-based material, foaming Layer, surface layer；The foaming layer includes that component is as follows by weight: 100 parts of polyvinyl chloride resin, 40 parts of crystal whisker of gypsum, Paris white 50 Part, 80 parts of plasticizer, 3.8 parts of stabilizer, 5.0 parts of foaming agent, 10.0 parts of color cake.Surface layer includes that component is as follows: PVC by weight 75 parts of resin, 20 parts of crystal whisker of gypsum, 48 parts of plasticizer, 3 parts of stabilizer, 5 parts of color cake.Further preferably, the crystal whisker of gypsum Draw ratio be 7.Further preferably, the polyvinyl chloride resin is three type polyvinyl chloride resins.Further preferably, the plasticizer is DOP dioctyl phthalate.A kind of preparation method of the PVC foam artificial leather based on crystal whisker of gypsum, steps are as follows: (1) forging It burns: crystal whisker of gypsum being sent into calcining furnace and is calcined, calcination temperature control is described between 600 DEG C in the step (1) Calcination time is controlled in 30min.(2) ingredient: foaming layer component and surface layer component are mixed respectively according to weight ratio Ingredient.(3) it is kneaded mill filtering: the foaming layer component prepared and surface layer component being carried out to mixing and mill respectively and carried out Filter.(4) calender lamination: foaming layer component and surface layer component are subjected to calendering formation by four-roll calender respectively, then by cloth Sill, foaming layer, surface layer are bonded by make-up machine, obtain semi-finished product.(5) it foams: semi-finished product is sent into foaming machine Carry out foaming processing.(6) the cooling winding of embossing: semi-finished product are embossed, cool down, are wound, the PVC based on crystal whisker of gypsum is obtained Foam leather finished product.Further preferably, foaming layer and surface layer are bonded first in the step (3), foaming layer and The temperature that surface layer is bonded is controlled at 225 DEG C, is then bonded foaming layer and cloth-based material.Further preferably, the step Suddenly foaming step foams by six stages in (5)；The first stage temperature control is 175 DEG C；Described second The temperature control in stage is 190 DEG C；The phase III temperature control is 220 DEG C；The fourth stage temperature controls 235℃；The 5th phase temperature control is 230 DEG C；The 6th phase temperature control is 190 DEG C；It is each of described The duration in stage is 2.5min.Further preferably, the laminate pressure of the make-up machine in the step (3) is 30kg/ cm3。
Embodiment 2
A kind of PVC foam artificial leather based on crystal whisker of gypsum, including be successively bonded from inside to outside cloth-based material, foaming Layer, surface layer；The foaming layer includes that component is as follows by weight: 95 parts of polyvinyl chloride resin, 50 parts of crystal whisker of gypsum, Paris white 40 Part, 80 parts of plasticizer, 3.8 parts of stabilizer, 5.0 parts of foaming agent, 10.0 parts of color cake.Surface layer includes that component is as follows: PVC by weight 70 parts of resin, 15 parts of crystal whisker of gypsum, 48 parts of plasticizer, 3 parts of stabilizer, 5 parts of color cake.Further preferably, the crystal whisker of gypsum Draw ratio be 6.Further preferably, the polyvinyl chloride resin is three type polyvinyl chloride resins.Further preferably, the plasticizer is DOP dioctyl phthalate.A kind of preparation method of the PVC foam artificial leather based on crystal whisker of gypsum, steps are as follows: (1) forging It burns: crystal whisker of gypsum being sent into calcining furnace and is calcined, calcination temperature control is described between 550 DEG C in the step (1) Calcination time is controlled in 25min.(2) ingredient: foaming layer component and surface layer component are mixed respectively according to weight ratio Ingredient.(3) it is kneaded mill filtering: the foaming layer component prepared and surface layer component being carried out to mixing and mill respectively and carried out Filter.(4) calender lamination: foaming layer component and surface layer component are subjected to calendering formation by four-roll calender respectively, then by cloth Sill, foaming layer, surface layer are bonded by make-up machine, obtain semi-finished product.(5) it foams: semi-finished product is sent into foaming machine Carry out foaming processing.(6) the cooling winding of embossing: semi-finished product are embossed, cool down, are wound, the PVC based on crystal whisker of gypsum is obtained Foam leather finished product.Further preferably, foaming layer and surface layer are bonded first in the step (3), foaming layer and The temperature that surface layer is bonded is controlled at 225 DEG C, is then bonded foaming layer and cloth-based material.Further preferably, the step Suddenly foaming step foams by six stages in (5)；The first stage temperature control is 175 DEG C；Described second The temperature control in stage is 190 DEG C；The phase III temperature control is 220 DEG C；The fourth stage temperature controls 235℃；The 5th phase temperature control is 230 DEG C；The 6th phase temperature control is 190 DEG C；It is each of described The duration in stage is 2.5min.Further preferably, the laminate pressure of the make-up machine in the step (3) is 30kg/ cm3。
Embodiment 3
A kind of PVC foam artificial leather based on crystal whisker of gypsum, including be successively bonded from inside to outside cloth-based material, foaming Layer, surface layer；The foaming layer includes that component is as follows by weight: 100 parts of polyvinyl chloride resin, 45 parts of crystal whisker of gypsum, Paris white 45 Part, 80 parts of plasticizer, 3.8 parts of stabilizer, 5.0 parts of foaming agent, 10.0 parts of color cake.Surface layer includes that component is as follows: PVC by weight 65 parts of resin, 10 parts of crystal whisker of gypsum, 48 parts of plasticizer, 3 parts of stabilizer, 5 parts of color cake.Further preferably, the crystal whisker of gypsum Draw ratio be 5.Further preferably, the polyvinyl chloride resin is three type polyvinyl chloride resins.Further preferably, the plasticizer is DOP dioctyl phthalate.A kind of preparation method of the PVC foam artificial leather based on crystal whisker of gypsum, steps are as follows: (1) forging It burns: crystal whisker of gypsum being sent into calcining furnace and is calcined, calcination temperature control is described between 500 DEG C in the step (1) Calcination time is controlled in 20min.(2) ingredient: foaming layer component and surface layer component are mixed respectively according to weight ratio Ingredient.(3) it is kneaded mill filtering: the foaming layer component prepared and surface layer component being carried out to mixing and mill respectively and carried out Filter.(4) calender lamination: foaming layer component and surface layer component are subjected to calendering formation by four-roll calender respectively, then by cloth Sill, foaming layer, surface layer are bonded by make-up machine, obtain semi-finished product.(5) it foams: semi-finished product is sent into foaming machine Carry out foaming processing.(6) the cooling winding of embossing: semi-finished product are embossed, cool down, are wound, the PVC based on crystal whisker of gypsum is obtained Foam leather finished product.Further preferably, foaming layer and surface layer are bonded first in the step (3), foaming layer and The temperature that surface layer is bonded is controlled at 225 DEG C, is then bonded foaming layer and cloth-based material.Further preferably, the step Suddenly foaming step foams by six stages in (5)；The first stage temperature control is 175 DEG C；Described second The temperature control in stage is 190 DEG C；The phase III temperature control is 220 DEG C；The fourth stage temperature controls 235℃；The 5th phase temperature control is 230 DEG C；The 6th phase temperature control is 190 DEG C；It is each of described The duration in stage is 2.5min.Further preferably, the laminate pressure of the make-up machine in the step (3) is 30kg/ cm3。
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (5)

1. a kind of preparation method of the PVC foam artificial leather based on crystal whisker of gypsum, including the cloth base material being successively bonded from inside to outside Material, foaming layer, surface layer；The foaming layer includes that component is as follows by weight: 95~105 parts of polyvinyl chloride resin, crystal whisker of gypsum 40 ~50 parts, 40~50 parts of Paris white, 75~85 parts of plasticizer, 3.5~4.0 parts of stabilizer, 4.5~5.5 parts of foaming agent, color cake 9.5~10.5 parts；The surface layer includes that component is as follows by weight: 65~75 parts of polyvinyl chloride resin, 10~20 parts of crystal whisker of gypsum, 46~52 parts of plasticizer, 1.5~3 parts of stabilizer, 4.5~5.5 parts of color cake；It is characterized in that, steps are as follows:
(1) it calcines: crystal whisker of gypsum being sent into calcining furnace and is calcined；Calcination temperature controls between 500 to 600 DEG C, described Calcination time control 20 to 30min；
(2) ingredient: respectively will foaming layer component and surface layer component progress mix according to weight ratio；
(3) it is kneaded mill filtering: the foaming layer component prepared and surface layer component being carried out to mixing and mill respectively and are filtered；
(4) calender lamination: foaming layer component and surface layer component are subjected to calendering formation by four-roll calender respectively, then by cloth Sill, foaming layer, surface layer are bonded by make-up machine, obtain semi-finished product；Foaming layer and surface layer are bonded first, The temperature that the foaming layer and surface layer are bonded is controlled at 220 to 230 DEG C, is then bonded foaming layer and cloth-based material；
(5) it foams: semi-finished product being sent into foaming machine and carry out foaming processing；Foaming step foams by six stages；Institute The first stage temperature control stated is 172 to 178 DEG C；The temperature control of the second stage is 187 to 192 DEG C；Described The control of phase III temperature is 218 to 224 DEG C；The fourth stage temperature control is 233 to 237 DEG C；5th rank Duan Wendu control is 228 to 232 DEG C；The 6th phase temperature control is 188 to 192 DEG C；Each stage holds The continuous time is 2 to 3min；
(6) the cooling winding of embossing: semi-finished product are embossed, cool down, are wound, it is artificial to obtain the PVC foam based on crystal whisker of gypsum Remove from office finished product.
2. the preparation method of the PVC foam artificial leather according to claim 1 based on crystal whisker of gypsum, which is characterized in that institute The draw ratio for the crystal whisker of gypsum stated is 5 to 7.
3. the preparation method of the PVC foam artificial leather according to claim 1 based on crystal whisker of gypsum, which is characterized in that institute The polyvinyl chloride resin stated is three type polyvinyl chloride resins.
4. the preparation method of the PVC foam artificial leather according to claim 1 based on crystal whisker of gypsum, which is characterized in that institute The plasticizer stated is DOP dioctyl phthalate.
5. the preparation method of the PVC foam artificial leather according to claim 1 based on crystal whisker of gypsum, which is characterized in that institute The laminate pressure of make-up machine in the step of stating (4) is 29kg/cm3To 31 kg/cm3。
CN201610938541.8A 2016-10-25 2016-10-25 A kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum Active CN106544881B (en)

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CN201610938541.8A CN106544881B (en) 2016-10-25 2016-10-25 A kind of PVC foam artificial leather and preparation method thereof based on crystal whisker of gypsum
PCT/CN2017/089337 WO2018076729A1 (en) 2016-10-25 2017-06-21 Gypsum whiskers-based pvc foaming synthetic leather and preparation method therefor

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