CN103866582A - Natural product-containing degradable water-based synthetic leather and production process thereof - Google Patents
Natural product-containing degradable water-based synthetic leather and production process thereof Download PDFInfo
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Abstract
The invention relates to natural product-containing degradable water-based synthetic leather and a production process thereof. The parameters of the natural product-containing degradable water-based synthetic leather provided by the invention are as follows: the solid content is 35-40%, the pH value is 7-8, the ionic type is anion, the elongation is 300-700%, and the tensile strength is 20-45Mpa. The production process of the natural product-containing degradable water-based synthetic leather comprises the following steps: (1) selecting base cloth; (2) carrying out impregnation and roll compacting on the base cloth; (3) coating the base cloth with slurry; (4) drying; (5) performing cooling and back grinding for the dried base cloth; and (6) performing release embossing, printing, luster increasing, extinction, polishing, buffing, kneading and moisture curing process for the synthetic leather Bass to obtain a final product. The production process provided by the invention is environment-friendly, energy-saving and low in energy consumption; and the water-based synthetic leather provided by the invention has perfect water resistance and certain aesthetics.
Description
Technical field
The present invention relates to a kind of degradable aqueous synthetic leather and manufacture craft thereof that contains natural goods.
Background technology
In traditional synthetic leather is manufactured, most use dimethyl formamides etc. are as primary solvent, this just makes can produce in traditional synthetic leather manufacture waste water and the waste gas of a large amount of dimethyl formamides, even these waste water that contain dimethyl formamide with, waste gas by recycling, still having some contains and enters the Nature, cause factory's surrounding enviroment to pollute, and endanger personnel health.In addition in recent years, ecological synthetic leather theory more and more receives people's concern, ecological synthetic leather also becomes the focus of leather manufacturer and material supply section scholar research day by day, the theory of ecological synthetic leather comprises following four aspects: the one, in manufacturing process, do not bring pollution to environment, and the 2nd, be processed in leather goods process harmless; The 3rd, harmless in use procedure, environment is not produced to pollution; The 4th, biodegradable, and catabolite can not cause new pollution to environment, substantially may be summarized to be in the exploitation of ecological synthetic leather and must adopt clean production technology, accomplishes low-carbon (LC), low energy consumption, zero-emission or few discharge.In sum, the synthetic degradable aqueous synthetic leather that contains natural goods will become the inexorable trend of industry development.
Summary of the invention
The degradable aqueous synthetic leather and the manufacture craft thereof that the object of the present invention is to provide a kind of low-carbon environment-friendly, contain natural goods.
Object of the present invention is achieved through the following technical solutions: a kind of degradable aqueous synthetic leather that contains natural goods, is characterized in that: it has following parameter: admittedly contain: 35%-40%; PH value: 7-8; Ion-type: anion; Percentage elongation: 300%-700%; TENSILE STRENGTH: 20Mpa-45Mpa.
A manufacture craft for the degradable aqueous synthetic leather that contains natural goods, is characterized in that: it comprises the following steps:
(1) base cloth is selected: select the one in spunlace non-woven cloth, woven fabric, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 20～30min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is between 5%～15%; Roll compacting roller pressure is set as: 2.5～4.5/kg/ ㎡, and rolling roller space is 60%～65% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 11 parts～13 parts, water, 80～120 parts of waterborne polyurethane resins, 20～100 parts of starch base PLAs, 0～8 part of wetting agent, 0～3 part of demulsifier, 0～2 part of foam stabilizer, put into vertical-type planetary formula mixer and mix, incorporation time is 25-35 minute; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 200～500/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 130 DEG C～150 DEG C, and drying time is set as 5～10min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The metal nitrate aqueous solution that described maceration extract is 5%～10% by 1～10 part of mass fraction and the water of 90～99 parts are formulated.
Compared to prior art, the invention has the advantages that: in the whole production process of the present invention, do not use
Any organic solvent is processed, processing recovery and the pollution problem of the organic solvents such as dimethyl formamide are avoided, accomplish basic VOC free discharge, and input and the use cost of solvent reclaimer are reduced, the present invention uses the starch base PLA of environment-friendly degradable as raw material, more embody the advantage of environmental protection of the present invention, in addition, the Waterborne synthetic leather that the present invention makes has good mar proof, can extend the service life of synthetic leather product, and the Waterborne synthetic leather that makes of the present invention also has certain aesthetic property and can improve its surcharge simultaneously.
Detailed description of the invention
Below in conjunction with embodiment, content of the present invention is elaborated:
A degradable aqueous synthetic leather that contains natural goods, it has following parameter: admittedly contain: 35%-40%; PH value: 7-8; Ion-type: anion; Percentage elongation: 300%-700%; TENSILE STRENGTH: 20Mpa-45Mpa.
A manufacture craft for the degradable aqueous synthetic leather that contains natural goods, it comprises the following steps:
(1) base cloth is selected: select the one in spunlace non-woven cloth, woven fabric, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 20～30min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is between 5%～15%; Roll compacting roller pressure is set as: 2.5～4.5/kg/ ㎡, and rolling roller space is 60%～65% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 11 parts～13 parts, water, 80～120 parts of waterborne polyurethane resins, 20～100 parts of starch base PLAs, 0～8 part of wetting agent, 0～3 part of demulsifier, 0～2 part of foam stabilizer, put into vertical-type planetary formula mixer and mix, incorporation time is 25-35 minute; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 200～500/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 130 DEG C～150 DEG C, and drying time is set as 5～10min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The metal nitrate aqueous solution that described maceration extract is 5%～10% by 1～10 part of mass fraction and the water of 90～99 parts are formulated;
Described waterborne polyurethane resin is the wherein one in aliphatic anion polyester-type, aliphatic anion polyether-type, aliphatic anion polyester-polyether-type, aromatic series anion polyester-type, aromatic series anion polyether-type or aromatic series anion polyester-polyether-type; Described wetting agent is sodium butylnaphthalenesulfonate; Described demulsifier is SP type demulsifier; Described foam stabilizer is succinyl amine salt.The present invention uses waterborne polyurethane resin as raw material, because waterborne polyurethane resin can be taking the water poisonous organic solvent traditional as solvent replaces, can accomplish pollution-free, safe and reliablely, in addition, waterborne polyurethane resin mechanical performance is good, compatibility good, be easy to modification.
Described metal nitrate is the wherein one in potassium nitrate or sodium nitrate.
Described starch base PLA is cornstarch PLA.The present invention uses cornstarch PLA as raw material, high because cornstarch PLA has intensity, water-tolerant, and cost is low, and biodegradable advantage.
Described spunlace non-woven cloth contains 20%～30% flax fibre and adopts wet method to make, and described woven fabric contains 20%～30% cotton fiber and adopts machine to work out.
Embodiment mono-:
A manufacture craft for the degradable aqueous synthetic leather that contains natural goods, it comprises the following steps:
(1) base cloth is selected: select the spunlace non-woven cloth that contains 20% flax fibre and adopt wet method to make, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 20min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is 5%; Roll compacting roller pressure is set as: 2.5/kg/ ㎡, and rolling roller space is 60% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 11 parts, water, and 80 parts of aliphatic anion polyester-type waterborne polyurethane resins, 20 parts of cornstarch PLAs, 1.5 parts of SP type demulsifiers, 2 parts, succinyl amine salt, puts into vertical-type planetary formula mixer and mixes, and incorporation time is 25 minutes; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 200/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 130 DEG C, and drying time is set as 5min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The water of the sodium nitrate aqueous solution that described maceration extract is 10% by 1 part of mass fraction and 99 parts is formulated;
Embodiment bis-:
A manufacture craft for the degradable aqueous synthetic leather that contains natural goods, it comprises the following steps:
(1) base cloth is selected: select the spunlace non-woven cloth that contains 25% flax fibre and adopt wet method to make, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 25min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is 10%; Roll compacting roller pressure is set as: 3.0/kg/ ㎡, and rolling roller space is 62% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 12 parts, water, and 100 parts of the polyether type aqueous polyurethane resins of aliphatic anion, 80 parts of cornstarch PLAs, 5 parts of sodium butylnaphthalenesulfonates, 3 parts of SP type demulsifiers, put into vertical-type planetary formula mixer and mix, and incorporation time is 30 minutes; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 300/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 135 DEG C, and drying time is set as 8min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The water of the sodium nitrate aqueous solution that described maceration extract is 8% by 5 parts of mass fractions and 95 parts is formulated;
Embodiment tri-:
A manufacture craft for the degradable aqueous synthetic leather that contains natural goods, it comprises the following steps:
(1) base cloth is selected: select the spunlace non-woven cloth that contains 30% flax fibre and adopt wet method to make, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 30min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is 15%; Roll compacting roller pressure is set as: 4.5/kg/ ㎡, and rolling roller space is 65% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 13 parts, water, and aliphatic anion polyester-120 parts of polyether type aqueous polyurethane resins, 100 parts of cornstarch PLAs, 8 parts of sodium butylnaphthalenesulfonates, 1 part, succinyl amine salt, puts into vertical-type planetary formula mixer and mixes, and incorporation time is 35 minutes; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 500/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 150 DEG C, and drying time is set as 10min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The water of the sodium nitrate aqueous solution that described maceration extract is 5% by 10 parts of mass fractions and 90 parts is formulated;
The Waterborne synthetic leather that above three kinds of embodiment make all has good mar proof, and the Waterborne synthetic leather obtaining also has certain aesthetic property and can improve its surcharge simultaneously.
Claims (6)
1. a degradable aqueous synthetic leather that contains natural goods, is characterized in that: it has following parameter: admittedly contain: 35%-40%; PH value: 7-8; Ion-type: anion; Percentage elongation: 300%-700%; TENSILE STRENGTH: 20Mpa-45Mpa.
2. a manufacture craft that contains the degradable aqueous synthetic leather of natural goods, is characterized in that: it comprises the following steps:
(1) base cloth is selected: select the one in spunlace non-woven cloth, woven fabric, the plucking processing of polishing;
(2) base cloth dipping and roll compacting: by the base cloth screening by the stage one, under the condition of normal temperature and pressure, be placed on be equipped with maceration extract soak hopper in flood; Dip time is 20～30min; After dipping, take out and use roll compacting roller to remove the moisture in base cloth, after roll compacting, base cloth liquid carrying rate is between 5%～15%; Roll compacting roller pressure is set as: 2.5～4.5/kg/ ㎡, and rolling roller space is 60%～65% of base cloth thickness;
(3) base cloth covers slurry: by weight: by 11 parts～13 parts, water, 80～120 parts of waterborne polyurethane resins, 20～100 parts of starch base PLAs, 0～8 part of wetting agent, 0～3 part of demulsifier, 0～2 part of foam stabilizer, put into vertical-type planetary formula mixer and mix, incorporation time is 25-35 minute; Use slit roll painting machine to scrape that Tu is smooth to be coated on base cloth in mixed slurries, starching amount is 200～500/g/ ㎡;
(4) dry: the base cloth after applying is put into drying and setting machine and dry, bake out temperature is set as 130 DEG C～150 DEG C, and drying time is set as 5～10min;
(5) base cloth after drying is carried out to cooling and back of the body mill, can obtain synthetic leather bass;
(6) synthetic leather bass carried out to release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
The metal nitrate aqueous solution that described maceration extract is 5%～10% by 1～10 part of mass fraction and the water of 90～99 parts are formulated.
3. the manufacture craft of the degradable aqueous synthetic leather that contains natural goods according to claim 2, is characterized in that: described waterborne polyurethane resin is the wherein one in aliphatic anion polyester-type, aliphatic anion polyether-type, aliphatic anion polyester-polyether-type, aromatic series anion polyester-type, aromatic series anion polyether-type or aromatic series anion polyester-polyether-type; Described wetting agent is sodium butylnaphthalenesulfonate; Described demulsifier is SP type demulsifier; Described foam stabilizer is succinyl amine salt.
4. the manufacture craft of the degradable aqueous synthetic leather that contains natural goods according to claim 2, is characterized in that: described metal nitrate is the wherein one in potassium nitrate or sodium nitrate.
5. the manufacture craft of the degradable aqueous synthetic leather that contains natural goods according to claim 2, is characterized in that: described starch base PLA is cornstarch PLA.
6. the manufacture craft of the degradable aqueous synthetic leather that contains natural goods according to claim 2, it is characterized in that: described spunlace non-woven cloth contains 20%～30% flax fibre and adopts wet method to make, described woven fabric contains 20%～30% cotton fiber and adopts machine to work out.
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Cited By (9)
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| CN104695236A (en) * | 2015-04-01 | 2015-06-10 | 华大化学集团有限公司 | Method for producing water-based polyurethane synthetic leather |
| CN106282444A (en) * | 2016-08-29 | 2017-01-04 | 扬州市德运塑业科技股份有限公司 | What a kind of leather preparation process used covers slurry serosity and preparation method thereof |
| CN106367988A (en) * | 2016-08-29 | 2017-02-01 | 扬州市德运塑业科技股份有限公司 | Degradable automobile leather and preparation method thereof |
| CN107385948A (en) * | 2017-07-03 | 2017-11-24 | 徐琦 | The method for going back raw hide is prepared based on collagen fabric fabric combination water jet process |
| CN108086007A (en) * | 2016-11-19 | 2018-05-29 | 江苏天成超纤革业有限公司 | A kind of decorative pattern Process for producing leather |
| CN109208340A (en) * | 2018-11-05 | 2019-01-15 | 加通汽车内饰(常熟)有限公司 | A kind of degradable PVC artificial leather and its preparation process and its production technology |
| CN111101384A (en) * | 2019-12-21 | 2020-05-05 | 福建隆上超纤有限公司 | Preparation method of super-hydrophobic ecological environment-friendly microfiber leather |
| CN112482045A (en) * | 2020-11-03 | 2021-03-12 | 安徽安利材料科技股份有限公司 | Polylactic acid biodegradable polyurethane synthetic leather and preparation method thereof |
| CN113062123A (en) * | 2021-03-30 | 2021-07-02 | 英德市匠心新材料股份有限公司 | High-solid-content mirror-surface PU leather and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695236A (en) * | 2015-04-01 | 2015-06-10 | 华大化学集团有限公司 | Method for producing water-based polyurethane synthetic leather |
| CN106282444A (en) * | 2016-08-29 | 2017-01-04 | 扬州市德运塑业科技股份有限公司 | What a kind of leather preparation process used covers slurry serosity and preparation method thereof |
| CN106367988A (en) * | 2016-08-29 | 2017-02-01 | 扬州市德运塑业科技股份有限公司 | Degradable automobile leather and preparation method thereof |
| CN108086007A (en) * | 2016-11-19 | 2018-05-29 | 江苏天成超纤革业有限公司 | A kind of decorative pattern Process for producing leather |
| CN107385948A (en) * | 2017-07-03 | 2017-11-24 | 徐琦 | The method for going back raw hide is prepared based on collagen fabric fabric combination water jet process |
| CN109208340A (en) * | 2018-11-05 | 2019-01-15 | 加通汽车内饰(常熟)有限公司 | A kind of degradable PVC artificial leather and its preparation process and its production technology |
| CN111101384A (en) * | 2019-12-21 | 2020-05-05 | 福建隆上超纤有限公司 | Preparation method of super-hydrophobic ecological environment-friendly microfiber leather |
| CN112482045A (en) * | 2020-11-03 | 2021-03-12 | 安徽安利材料科技股份有限公司 | Polylactic acid biodegradable polyurethane synthetic leather and preparation method thereof |
| CN113062123A (en) * | 2021-03-30 | 2021-07-02 | 英德市匠心新材料股份有限公司 | High-solid-content mirror-surface PU leather and preparation method thereof |
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