CN105239417A - Formula and technology of microfiber synthetic leather produced through waterborne polyurethane foam finishing - Google Patents
Formula and technology of microfiber synthetic leather produced through waterborne polyurethane foam finishing Download PDFInfo
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- CN105239417A CN105239417A CN201510771387.5A CN201510771387A CN105239417A CN 105239417 A CN105239417 A CN 105239417A CN 201510771387 A CN201510771387 A CN 201510771387A CN 105239417 A CN105239417 A CN 105239417A
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- synthetic leather
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- aqueous polyurethane
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Abstract
The invention discloses a formula of microfiber synthetic leather produced through waterborne polyurethane foam finishing. The formula comprises finishing liquor, wherein the finishing liquor is prepared from 5-50% of waterborne polyurethane emulsion, 1-10% of ammonium stearate emulsion, 1-10% of filler, 0.5-3% of foaming agent, 0.5-5% of color paste, 1-5% of penetrant, 3-8% of softening agent and the balance deionized water. The technology comprises the steps of preparing the finishing liquor, and making the prepared finishing liquor into finishing foams; applying the finishing foams to microfiber base cloth, and conducting drying with an oven; conducting post-treatment to obtain the polyurethane microfiber synthetic leather. The conventional impregnation technology is replaced by the foam finishing production technology, the take-up rate of finished microfiber base cloth is reduced greatly, drying energy consumption is reduced, water resources are saved, accurate liquid feeding is controlled by a counter, and production controllability and product quality are improved to the maximum degree.
Description
[technical field]
The present invention relates to the technical field of synthetic leather hindlimb unload, particularly a kind of aqueous polyurethane foam finishing produces the formula of microfiber synthetic leather and the technical field of technique.
[background technology]
China is as artificial leather synthetic leather big producing country, and while enterprise production, total industrial output value steady-state growth, the pressure faced is also increasing, especially exports European market.The chemical management board in Europe formally discloses the 8th batch and shows great attention to material candidate list, comprising DMF (DMF).The appearance of this regulation, proposes baptism to synthetic leather manufacturing enterprise again.
Manufacturing enterprise of China adopts traditional solvent type polyurethane resin to manufacture synthetic leather substantially, solvent is the organic solvents such as poisonous and hazardous dimethyl formamide, toluene, acetone, butanone as the decentralized medium major part of resin, its in resin content up to 70-80%.These solvents can't reclaim at present completely, not only cause environmental pollution at product end, and serious harm employee is healthy in process of production.
The oiliness of producing in the market or the super fine leather of water-based are all the technique using impregnation, this technics comparing falls behind, fabric liquid carrying rate after impregnation is higher, general all at about 60%-70%, dry energy consumption also just very large, and containing the concentration of immersion liquid all in dynamic change, so the leather goods quality produced is also very unstable, because the production technology of impregnation cannot accomplish the concentration accurately controlling to arrange liquid in impregnating groove at all.
Foam finishing mode aqueous polyurethane dressing liquid Intelligent Dynamic foam maker is made the foams of certain multiplying power, again by special Intelligent constant-voltage foam jet applicator or by modes such as cutter painting, roller coat, roller coating, foams are applied on super fine base cloth, foam is applied to the quick shattered to pieces also rapid permeability of meeting after on base cloth in super fine base cloth, through after road oven for drying, carry out a series of post processings such as sanding, skin of tanning, foam coating, embossing, stamp, printing, veneer again, make the super fine leather of water-based.
[summary of the invention]
Object of the present invention solves the problems of the prior art exactly, formula and technique that a kind of aqueous polyurethane foam finishing produces microfiber synthetic leather are proposed, use foam finishing technology, oven dry energy consumption and water resource are saved, the accurate feeding controlled by calculator, farthest improves controllability and the product quality of production process.
For achieving the above object, the present invention proposes the formula that a kind of aqueous polyurethane foam finishing produces microfiber synthetic leather, comprise dressing liquid; Described dressing liquid comprises following component and each component ratio is:
As preferably, described ammonium stearate emulsion comprises component: stearic acid, ammoniacal liquor, lauryl sodium sulfate, water.
As preferably, described ammoniacal liquor is 20% ammoniacal liquor, and ammonium stearate emulsion component ratio is stearic acid 15% ~ 35%, ammoniacal liquor 6% ~ 14%, lauryl sodium sulfate 1% ~ 3%, surplus are water.
The present invention proposes the technique that a kind of aqueous polyurethane foam finishing produces microfiber synthetic leather, comprise concrete steps as follows:
A) prepare dressing liquid, dressing liquid has been prepared according to formula rate, the dressing liquid prepared is made foams by Intelligent Dynamic foam maker, obtain arranging foams;
B) arrangement foams are applied on super fine base cloth, and allow arrangement foams rapid osmotic in the superfine fibre of super fine base cloth, pass through oven for drying;
C) the super fine base cloth after drying is carried out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing or veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
As preferably, in described a) step, the expansion ratio of dressing liquid is 1 ~ 20 times.
As preferably, in described b) step, arrange mode that foams are applied to super fine base cloth be use Intelligent constant-voltage foam jet applicator to apply or adopt that cutter is coated with, the mode of roller coating or roller coat applies.
As preferably, in described b) step, the bake out temperature of baking oven is 50 DEG C ~ 180 DEG C, carries out multistage temperature control, temperature-gradient method.
Beneficial effect of the present invention:
1, use the production technology of foam finishing to substitute conventional containing soaking technology, greatly reduce the liquid carrying rate being organized super fine base cloth, become the accurate feeding controlled by calculator by dynamic change containing immersion liquid, this is the revolutionary character breakthrough of the super fine leather production technology of water-based.
2, by computer-controlled accurate feeding, farthest improve controllability and the product quality of production process, according to the general liquid carrying rate control of gram weight about the 10%-40% of super fine base cloth, so greatly save oven dry energy consumption and water resource.
3, whole production process is without any the discharge of sewage and waste gas, and this is real environment amenable production technology.The super fine leather of aqueous polyurethane produced is soft plentiful, and product, by the environmental protection tests of SGS, meets the environmental requirement of most countries in the world, and aqueous polyurethane microfiber synthetic leather is the high-grade synthetic leather product of environmental protection.
Feature of the present invention and advantage will be described in detail by embodiment.
[detailed description of the invention]
A kind of aqueous polyurethane foam finishing of the present invention produces the formula of microfiber synthetic leather, comprises dressing liquid; Described dressing liquid comprises following component and each component ratio is:
Described ammonium stearate emulsion comprises component: stearic acid, ammoniacal liquor, lauryl sodium sulfate, water.Described ammoniacal liquor is 20% ammoniacal liquor, and ammonium stearate emulsion component ratio is stearic acid 20%, ammoniacal liquor 7%, lauryl sodium sulfate 1%, surplus are water.
Aqueous polyurethane foam finishing produces a technique for microfiber synthetic leather, comprises concrete steps as follows:
A) prepare dressing liquid, dressing liquid has been prepared according to formula rate, the dressing liquid prepared is made foams by Intelligent Dynamic foam maker, obtain arranging foams;
B) arrangement foams are applied on super fine base cloth, and allow arrangement foams rapid osmotic in the superfine fibre of super fine base cloth, pass through oven for drying;
C) the super fine base cloth after drying is carried out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing or veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
In described a) step, the expansion ratio of dressing liquid is 1 ~ 20 times.In described b) step, arrange mode that foams are applied to super fine base cloth be use Intelligent constant-voltage foam jet applicator to apply or adopt that cutter is coated with, the mode of roller coating or roller coat applies.In described b) step, the bake out temperature of baking oven is 50 DEG C ~ 180 DEG C, carries out multistage temperature control, temperature-gradient method.
Embodiment 1:
Preparation dressing liquid, in following ratio:
Add the raw material of formula ratio in a reservoir successively, stir and obtain dressing liquid, the dressing liquid prepared is made 5 times of foams by Intelligent Dynamic foam maker, obtain arranging foams.
Arrangement foams are applied on super fine base cloth, applying mode is for using Intelligent constant-voltage foam jet applicator to apply or adopting cutter painting, roller coating or roll coating model, allow and arrange foams rapid osmotic in the superfine fibre of super fine base cloth, pass through oven for drying, carry out multistage temperature control, temperature-gradient method, temperature is 50 DEG C ~ 180 DEG C.
By dry after super fine base cloth carry out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing, veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
Embodiment 2:
Preparation dressing liquid, in following ratio:
Add the raw material of formula ratio in a reservoir successively, stir and obtain dressing liquid, the dressing liquid prepared is made foams by Intelligent Dynamic foam maker, dressing liquid makes 10 times of foams, obtains arranging foams.
Arrangement foams are applied on super fine base cloth, applying mode is for using Intelligent constant-voltage foam jet applicator to apply or adopting cutter painting, roller coating or roll coating model, allow and arrange foams rapid osmotic in the superfine fibre of super fine base cloth, pass through oven for drying, carry out multistage temperature control, temperature-gradient method, temperature is 50 DEG C ~ 180 DEG C.
By dry after super fine base cloth carry out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing, veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
Embodiment 3:
Preparation dressing liquid, in following ratio:
Add the raw material of formula ratio in a reservoir successively, stir and obtain dressing liquid, the dressing liquid prepared is made foams by Intelligent Dynamic foam maker, dressing liquid makes 15 times of foams, obtains arranging foams.
Be applied to by arrangement foams on super fine base cloth, applying mode, for using Intelligent constant-voltage foam jet applicator to apply or adopting cutter painting, roller coating or roll coating model, allows and arranges foams rapid osmotic in the superfine fibre of super fine base cloth; By oven for drying, carry out multistage temperature control, temperature-gradient method, temperature is 50 DEG C ~ 180 DEG C.
By dry after super fine base cloth carry out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing, veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
The present invention, the production technology of foam finishing is used to substitute conventional containing soaking technology, greatly reduce the liquid carrying rate being organized super fine base cloth, oven dry energy consumption and water resource are saved, the accurate feeding controlled by calculator is become by the immersion liquid that contains of dynamic change, farthest improve controllability and the product quality of production process, this is the revolutionary character breakthrough of the super fine leather production technology of water-based.By computer-controlled accurate feeding, oven dry energy consumption and water resource are greatly saved, and whole production process is without any the discharge of sewage and waste gas, this is real environment amenable production technology, the super fine leather of the aqueous polyurethane produced is soft plentiful, product, by the environmental protection tests of SGS, meets the environmental requirement of most countries in the world, and aqueous polyurethane microfiber synthetic leather is the high-grade synthetic leather product of environmental protection.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (7)
1. aqueous polyurethane foam finishing produces a formula for microfiber synthetic leather, comprises dressing liquid; Described dressing liquid comprises following component and each component ratio is:
2. a kind of aqueous polyurethane foam finishing as claimed in claim 1 produces the formula of microfiber synthetic leather, it is characterized in that: described ammonium stearate emulsion comprises component: stearic acid, ammoniacal liquor, lauryl sodium sulfate, water.
3. a kind of aqueous polyurethane foam finishing as claimed in claim 2 produces the formula of microfiber synthetic leather, it is characterized in that: described ammoniacal liquor is 20% ammoniacal liquor, ammonium stearate emulsion component ratio is stearic acid 15% ~ 35%, ammoniacal liquor 6% ~ 14%, lauryl sodium sulfate 1% ~ 3%, surplus be water.
4. aqueous polyurethane foam finishing produces a technique for microfiber synthetic leather, it is characterized in that: comprise concrete steps as follows:
A) prepare dressing liquid, dressing liquid has been prepared according to formula rate, the dressing liquid prepared is made foams by Intelligent Dynamic foam maker, obtain arranging foams;
B) arrangement foams are applied on super fine base cloth, and allow arrangement foams rapid osmotic in the superfine fibre of super fine base cloth, pass through oven for drying;
C) the super fine base cloth after drying is carried out post processing, post processing comprises sanding, skin of tanning, foam coating, embossing, stamp, printing or veneer, obtain high physical property aqueous polyurethane microfiber synthetic leather.
5. a kind of aqueous polyurethane foam finishing as claimed in claim 4 produces the technique of microfiber synthetic leather, and it is characterized in that: in described a) step, the expansion ratio of dressing liquid is 1 ~ 20 times.
6. a kind of aqueous polyurethane foam finishing as claimed in claim 4 produces the technique of microfiber synthetic leather, it is characterized in that: in described b) step, arrange mode that foams are applied to super fine base cloth be use Intelligent constant-voltage foam jet applicator to apply or adopt that cutter is coated with, the mode of roller coating or roller coat applies.
7. a kind of aqueous polyurethane foam finishing as claimed in claim 4 produces the technique of microfiber synthetic leather, and it is characterized in that: in described b) step, the bake out temperature of baking oven is 50 DEG C ~ 180 DEG C, carries out multistage temperature control, temperature-gradient method.
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| CN201510771387.5A CN105239417A (en) | 2015-11-12 | 2015-11-12 | Formula and technology of microfiber synthetic leather produced through waterborne polyurethane foam finishing |
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| CN201510771387.5A CN105239417A (en) | 2015-11-12 | 2015-11-12 | Formula and technology of microfiber synthetic leather produced through waterborne polyurethane foam finishing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839425A (en) * | 2016-04-27 | 2016-08-10 | 宋婷婷 | Formula and technology of waterborne polyurethane foaming velvet and silk sense synthetic leather |
| CN105926308A (en) * | 2016-05-12 | 2016-09-07 | 宋婷婷 | Formula and technology for producing synthetic leather from graphene modified waterborne polyurethane |
| CN106010194A (en) * | 2016-07-01 | 2016-10-12 | 宋金火 | Formula and process of waterborne polyurethane synthetic leather intumescent coating glue |
| CN107574680A (en) * | 2017-09-21 | 2018-01-12 | 江西省新天汇实业有限公司 | A kind of preparation technology of the ventilative ecological super fiber leather of moisture absorption |
| CN110578257A (en) * | 2018-06-08 | 2019-12-17 | 上海达明精世化工有限公司 | Microfiber leather and preparation process thereof |
| CN114645469A (en) * | 2022-03-22 | 2022-06-21 | 宋金火 | Formula and process for producing microfiber synthetic leather by finishing waterborne polyurethane foam |
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2015
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Patent Citations (5)
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| WO2004053223A2 (en) * | 2002-12-09 | 2004-06-24 | Dow Global Technologies Inc. | Process for applying a polyurethane dispersion based foam to an article |
| CN102115983A (en) * | 2011-01-26 | 2011-07-06 | 烟台华大化学工业有限公司 | Aqueous polyurethane superfine fiber synthetic leather and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839425A (en) * | 2016-04-27 | 2016-08-10 | 宋婷婷 | Formula and technology of waterborne polyurethane foaming velvet and silk sense synthetic leather |
| CN105926308A (en) * | 2016-05-12 | 2016-09-07 | 宋婷婷 | Formula and technology for producing synthetic leather from graphene modified waterborne polyurethane |
| CN106010194A (en) * | 2016-07-01 | 2016-10-12 | 宋金火 | Formula and process of waterborne polyurethane synthetic leather intumescent coating glue |
| CN107574680A (en) * | 2017-09-21 | 2018-01-12 | 江西省新天汇实业有限公司 | A kind of preparation technology of the ventilative ecological super fiber leather of moisture absorption |
| CN110578257A (en) * | 2018-06-08 | 2019-12-17 | 上海达明精世化工有限公司 | Microfiber leather and preparation process thereof |
| CN114645469A (en) * | 2022-03-22 | 2022-06-21 | 宋金火 | Formula and process for producing microfiber synthetic leather by finishing waterborne polyurethane foam |
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Application publication date: 20160113 |