CN103866582B - Degradable aqueous synthetic leather containing natural goods and manufacture craft thereof - Google Patents
Degradable aqueous synthetic leather containing natural goods and manufacture craft thereof Download PDFInfo
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Abstract
The present invention relates to a kind of degradable aqueous synthetic leather and the manufacture craft thereof that contain natural goods.Degradable aqueous synthetic leather containing natural goods of the present invention, it has following parameter: admittedly contain: 35%-40%; PH value: 7-8; Ion-type: anion; Percentage elongation: 300%-700%; TENSILE STRENGTH: 20Mpa-45Mpa; The manufacture craft of the degradable aqueous synthetic leather containing natural goods, it comprises the following steps: (1) base cloth is selected; (2) base cloth dipping and roll compacting; (3) Ji Bu covers slurry; (4) dry; (5) Ji Bu after oven dry is carried out cooling and carrying on the back mill; (6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products; Manufacture craft environmental protection of the present invention, energy-conservation, low energy consumption; The Waterborne synthetic leather that the present invention obtains has good mar proof and certain aesthetic property.
Description
Technical field
The present invention relates to a kind of degradable aqueous synthetic leather and the manufacture craft thereof that contain natural goods.
Background technology
In traditional synthetic leather manufactures, most use dimethyl formamides etc. are as primary solvent, this just makes waste water and the waste gas that can produce a large amount of dimethyl formamides in traditional synthetic leather manufacture, even these waste water containing dimethyl formamide with, waste gas by recycling, still have some to contain and enter 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 the concern of people, 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: one is do not bring pollution to environment in manufacturing process, two be processed in leather goods process harmless; Three is harmless in use procedure, does not produce pollution to environment; Four is biodegradable, and catabolite can not cause new pollution to environment, substantially may be summarized to be and must adopt clean production technology in the exploitation of ecological synthetic leather, accomplishes low-carbon (LC), low energy consumption, zero-emission or few discharge.In sum, the degradable aqueous synthetic leather of synthesis containing natural goods will become the inexorable trend of industry development.
Summary of the invention
The object of the present invention is to provide a kind of low-carbon environment-friendly, degradable aqueous synthetic leather containing natural goods and manufacture craft thereof.
Object of the present invention is achieved through the following technical solutions: a kind of degradable aqueous synthetic leather containing 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 degradable aqueous synthetic leather containing 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, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 20 ~ 30min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is between 5% ~ 15%; Roll compacting roller pressure is set as: 2.5 ~ 4.5/kg/ ㎡, roll that roller space is base cloth thickness 60% ~ 65%;
(3) Ji Bu covers slurry: by weight: by 11 parts ~ 13 parts, water, waterborne polyurethane resin 80 ~ 120 parts, starch base PLA 20 ~ 100 parts, wetting agent 0 ~ 8 part, demulsifier 0 ~ 3 part, foam stabilizer 0 ~ 2 part, put into the mixing of vertical-type planetary formula mixer, incorporation time is 25-35 minute; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 200 ~ 500/g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 130 DEG C ~ 150 DEG C, and drying time is set as 5 ~ 10min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
Described maceration extract by 1 ~ 10 part of mass fraction be 5% ~ 10% metal nitrate saline solution and the water of 90 ~ 99 parts formulated.
Compared to prior art, the invention has the advantages that: do not use in the whole production process of the present invention
Any organic solvent is processed, avoid process recovery and the pollution problem of the organic solvents such as dimethyl formamide, accomplish basic VOC free discharge, and reduce input and the use cost of solvent reclaimer, 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 obtains has good mar proof, the service life of synthetic leather product can be extended, and its surcharge can be improved the while that the Waterborne synthetic leather that the present invention obtains also having certain aesthetic property.
Detailed description of the invention
Below in conjunction with embodiment, content of the present invention is described in detail:
A degradable aqueous synthetic leather containing 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 degradable aqueous synthetic leather containing natural goods, it comprises the following steps:
(1) base cloth is selected: select the one in spunlace non-woven cloth, woven fabric, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 20 ~ 30min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is between 5% ~ 15%; Roll compacting roller pressure is set as: 2.5 ~ 4.5/kg/ ㎡, roll that roller space is base cloth thickness 60% ~ 65%;
(3) Ji Bu covers slurry: by weight: by 11 parts ~ 13 parts, water, waterborne polyurethane resin 80 ~ 120 parts, starch base PLA 20 ~ 100 parts, wetting agent 0 ~ 8 part, demulsifier 0 ~ 3 part, foam stabilizer 0 ~ 2 part, put into the mixing of vertical-type planetary formula mixer, incorporation time is 25-35 minute; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 200 ~ 500/g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 130 DEG C ~ 150 DEG C, and drying time is set as 5 ~ 10min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
Described maceration extract by 1 ~ 10 part of mass fraction be 5% ~ 10% metal nitrate saline solution and the water of 90 ~ 99 parts formulated;
Described waterborne polyurethane resin is the wherein one in aliphatic anionic polyester type, aliphatic anion polyether-type, aliphatic anionic polyester-polyether-type, aromatic series anionic polyester type, aromatic series anion polyether-type or aromatic series anionic 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 that solvent is to replace traditional toxic organic solvents with water, can accomplish pollution-free, safe and reliable, in addition, waterborne polyurethane resin good mechanical performance, compatibility be good, be easy to modification.
Described metal nitrate is wherein a kind of in potassium nitrate or sodium nitrate.
Described starch base PLA is cornstarch PLA.The present invention uses cornstarch PLA as raw material because cornstarch PLA to have intensity high, water-tolerant, cost is low, and biodegradable advantage.
Described spunlace non-woven cloth contains the flax fibre of 20% ~ 30% and adopts wet method to obtain, and described woven fabric contains the cotton fiber of 20% ~ 30% and adopts machine to work out.
Embodiment one:
A manufacture craft for degradable aqueous synthetic leather containing natural goods, it comprises the following steps:
(1) base cloth is selected: select the flax fibre containing 20% and the spunlace non-woven cloth adopting wet method obtained, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 20min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is 5%; Roll compacting roller pressure is set as: 2.5/kg/ ㎡, roll that roller space is base cloth thickness 60%;
(3) Ji Bu covers slurry: by weight: by 11 parts, water, aliphatic anionic polyester type waterborne polyurethane resin 80 parts, cornstarch PLA 20 parts, SP type demulsifier 1.5 parts, 2 parts, succinyl amine salt, put into the mixing of vertical-type planetary formula mixer, incorporation time is 25 minutes; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 200/g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 130 DEG C, and drying time is set as 5min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
Described maceration extract by 1 part of mass fraction be 10% sodium nitrate aqueous solution and the water of 99 parts formulated;
Embodiment two:
A manufacture craft for degradable aqueous synthetic leather containing natural goods, it comprises the following steps:
(1) base cloth is selected: select the flax fibre containing 25% and the spunlace non-woven cloth adopting wet method obtained, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 25min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is 10%; Roll compacting roller pressure is set as: 3.0/kg/ ㎡, roll that roller space is base cloth thickness 62%;
(3) Ji Bu covers slurry: by weight: by 12 parts, water, the polyether type aqueous polyurethane resin of aliphatic anion 100 parts, cornstarch PLA 80 parts, sodium butylnaphthalenesulfonate 5 parts, SP type demulsifier 3 parts, put into the mixing of vertical-type planetary formula mixer, incorporation time is 30 minutes; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 300/g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 135 DEG C, and drying time is set as 8min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
Described maceration extract by 5 parts of mass fractions be 8% sodium nitrate aqueous solution and the water of 95 parts formulated;
Embodiment three:
A manufacture craft for degradable aqueous synthetic leather containing natural goods, it comprises the following steps:
(1) base cloth is selected: select the flax fibre containing 30% and the spunlace non-woven cloth adopting wet method obtained, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 30min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is 15%; Roll compacting roller pressure is set as: 4.5/kg/ ㎡, roll that roller space is base cloth thickness 65%;
(3) Ji Bu covers slurry: by weight: by 13 parts, water, aliphatic anionic polyester-polyether type aqueous polyurethane resin 120 parts, cornstarch PLA 100 parts, sodium butylnaphthalenesulfonate 8 parts, 1 part, succinyl amine salt, put into the mixing of vertical-type planetary formula mixer, incorporation time is 35 minutes; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 500/g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 150 DEG C, and drying time is set as 10min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products.
Described maceration extract by 10 parts of mass fractions be 5% sodium nitrate aqueous solution and the water of 90 parts formulated;
The Waterborne synthetic leather that above three kinds of embodiments obtain all has good mar proof, and can improve its surcharge while that the Waterborne synthetic leather obtained also having certain aesthetic property.
Claims (5)
1. a manufacture craft for the degradable aqueous synthetic leather containing 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, carry out polishing wharf's pavement quality;
(2) base cloth dipping and roll compacting: by the Ji Bu screened by the stage one, be placed under the condition of normal temperature and pressure in the leaching hopper that maceration extract is housed and flood; Dip time is 20 ~ 30min; Take out the moisture used in roll compacting roller removal base cloth after dipping, after roll compacting, base belt liquid rate is between 5% ~ 15%; Roll compacting roller pressure is set as: 2.5 ~ 4.5kg/ ㎡, roll that roller space is base cloth thickness 60% ~ 65%;
(3) Ji Bu covers slurry: by weight: by 11 parts ~ 13 parts, water, waterborne polyurethane resin 80 ~ 120 parts, starch base PLA 20 ~ 100 parts, wetting agent 0 ~ 8 part, demulsifier 0 ~ 3 part, foam stabilizer 0 ~ 2 part, put into the mixing of vertical-type planetary formula mixer, incorporation time is 25-35 minute; Tu is smooth is coated in Ji Bushang to use roller knife to scrape in mixed slurries, and starching amount is 200 ~ 500g/ ㎡;
(4) dry: the Ji Bu after coating is put into drying and setting machine and dries, bake out temperature is set as 130 DEG C ~ 150 DEG C, and drying time is set as 5 ~ 10min;
(5) Ji Bu after oven dry is carried out cooling and carrying on the back mill, synthetic leather bass can be obtained;
(6) synthetic leather bass carried out release embossing, stamp, add lustre to, delustring, polishing, mill skin, rub line and moisture-curable technique, obtain final products;
Described maceration extract by 1 ~ 10 part of mass fraction be 5% ~ 10% metal nitrate saline solution and the water of 90 ~ 99 parts formulated.
2. the manufacture craft of the degradable aqueous synthetic leather containing natural goods according to claim 1, is characterized in that: described waterborne polyurethane resin is the wherein one in aliphatic anionic polyester type, aliphatic anion polyether-type, aliphatic anionic polyester-polyether-type, aromatic series anionic polyester type, aromatic series anion polyether-type or aromatic series anionic polyester-polyether-type; Described wetting agent is sodium butylnaphthalenesulfonate; Described demulsifier is SP type demulsifier; Described foam stabilizer is succinyl amine salt.
3. the manufacture craft of the degradable aqueous synthetic leather containing natural goods according to claim 1, is characterized in that: described metal nitrate is wherein a kind of in potassium nitrate or sodium nitrate.
4. the manufacture craft of the degradable aqueous synthetic leather containing natural goods according to claim 1, is characterized in that: described starch base PLA is cornstarch PLA.
5. the manufacture craft of the degradable aqueous synthetic leather containing natural goods according to claim 1, it is characterized in that: described spunlace non-woven cloth contains the flax fibre of 20% ~ 30% and adopts wet method to obtain, described woven fabric contains the cotton fiber of 20% ~ 30% and adopts machine to work out.
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695236B (en) * | 2015-04-01 | 2017-01-25 | 华大化学集团有限公司 | Method for producing water-based polyurethane synthetic leather |
| CN106282444B (en) * | 2016-08-29 | 2018-09-04 | 扬州市德运塑业科技股份有限公司 | A kind of preparation method for covering slurry slurries that leather preparation process uses |
| CN106367988B (en) * | 2016-08-29 | 2018-10-12 | 扬州市德运塑业科技股份有限公司 | A kind of biodegradable vehicle leather |
| 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 |
| CN107385948B (en) * | 2017-07-03 | 2018-09-28 | 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 |
| CN112482045B (en) * | 2020-11-03 | 2022-09-09 | 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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| CN101440578A (en) * | 2008-12-19 | 2009-05-27 | 安徽安利合成革股份有限公司 | Novel waterproof air previous polyurethane artificial leather and preparation thereof |
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