CN100412264C - Innoxious solvent for manufacturing synthetic leather in dry method - Google Patents
Innoxious solvent for manufacturing synthetic leather in dry method Download PDFInfo
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- CN100412264C CN100412264C CNB2006100914836A CN200610091483A CN100412264C CN 100412264 C CN100412264 C CN 100412264C CN B2006100914836 A CNB2006100914836 A CN B2006100914836A CN 200610091483 A CN200610091483 A CN 200610091483A CN 100412264 C CN100412264 C CN 100412264C
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Abstract
The invention relates to a dissolvent for tanning, especially to innocuous dissolvent for synthetic leather produced in drying method. Said innocuous dissolvent contains lacquer solvent, extracting agent and cross-linking agent. Components of said dissolvent is as follows by weight: 40-120 portion of acetic ester, 10-50 portion of acetone, 5-30 portion of diacetone alcohol,5-30 portion of methylisobutyl ketone, 0-20 portion of sulfone, 0-20 portion of tetrahydrofuran. The innocuous dissolvent of the invention for synthetic leather produced in drying method can completely replace former toxic solvent in the process of synthetic leather production. It can maintain worker health in very degree and decrease the contamination for circumstance.
Description
Technical field
The present invention relates to a kind of solvent that is used for process hides, relate in particular to a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method.
Background technology
The synthetic leather that China makes at present is meant the laminar article that are formed by combining by polyurethane resin composition and nonwoven fabric, woven or woven cloth in a broad sense.So-called synthetic leather generally is divided into wet-method synthetic leather and dry-method chemical leather two big classes, typically refers to by polyurethane resin composition and is laminated to the laminate that forms on woven or the woven cloth.Wherein, method for making as dry-method chemical leather, the so-called laminating of general employing, even the composition of polyurethane resin and solvent is curtain coating on a kind of release liners, by heating solvent evaporates is fallen then, thereby make its filming, as required, can use adhesive it to be adhered on the fabrics such as woven or woven cloth and its presswork; In addition, also can adopt so-called direct coating process, the composition that is about to polyurethane resin and solvent is applied directly on the fabrics such as woven or woven cloth, then it is carried out heat drying.
At present in the synthetic leather production technology in the used conventional formulation, nearly all use toluene, dimethyl formamide and three kinds of chemicals of methyl ethyl ketone with high poison, poisoning, middle low toxicity.The more meeting of toluene single intake causes acute poisoning, and nervous centralis is benumbed, the stimulating mucosal tissue, and serious tic, symptoms such as obnubilation also can take place in the poisoner.Few but long-term contact sucks as soakage, also can cause syndromes such as neurasthenia, even also can cause the grievous injury of brain, liver, kidney, and this slow poisoning can cause woman worker's menoxenia, and workman's dizziness, hand numbness of tongue promptly use mouth mask also can't stop.Arene comprises that slow poisonings such as benzene,toluene,xylene are darker, often can not effect a radical cure.The long-time suction of dimethyl formamide not only can cause the impaired of liver kidney, and long-term and eye contact also can cause conjunctival congestion even corneal necrosis.Methyl ethyl ketone is harmful to nervous system, if not instant cleaning has certain injury to skin and human body behind the contact skin.And the total consumption of these three kinds of chemicals in the synthetic leather production technology more than 60% of resin demand of being everlasting at present reaches 70%, serious environment pollution sometimes.Replace original toxic solvent healthy and to reduce environmental pollution be present synthetic leather manufacturing industry urgent problem so how to prepare a kind of new innoxious solvent with the surfaceman.
Summary of the invention
The object of the present invention is to provide a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, to replace chemicals solvent poisonous in the present synthetic leather manufacturing industry.
For reaching above-mentioned purpose, the invention provides a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part
Sulfone 0-20 part
Oxolane 0-20 part.
Used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone in the described innoxious solvent, and used extractant is methyl iso-butyl ketone (MIBK), acetone, and used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part.
As preferably, also add sulfone as crosslinking agent, its consumption is 5-20 part.
As preferably, described innoxious solvent component by weight is as follows:
90 parts in ethyl acetate
40 parts in acetone
10 parts of methyl iso-butyl ketone (MIBK)s
10 parts of DAAs.
As preferably, described innoxious solvent component by weight is as follows:
100 parts in ethyl acetate
50 parts in acetone
10 parts of DAAs
5 parts of methyl iso-butyl ketone (MIBK)s.
As preferably, described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of sulfones.
As preferably, used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone, oxolane in the described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, and used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part
Oxolane 5-20 part.
As preferably, described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of oxolanes.
As preferably, used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone, oxolane in the described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, and used crosslinking agent is methyl iso-butyl ketone (MIBK), sulfone, and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part
Sulfone 5-20 part
Oxolane 5-20 part.
As preferably, described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
5 parts of sulfones
5 parts of oxolanes.
Composition with polyurethane resin and innoxious solvent when the dry process synthetic leather places curtain coating on the release liners, so that obtain the film of a kind of dried thickness for about 5-50 micron, with after the curtain coating the film that obtains dry under the temperature about 50-150 ℃, thereby obtain polyurethane film as the purpose product.Polyurethane film and nonwoven fabric, woven or the woven cloth that will so obtain with various known habitual adhesives is bonded together then, carries out lamination and necessary heat treatment again, then release liners peeled off, thereby obtained synthetic leather.
In addition, directly apply under the situation of processing carrying out dry method, the method that can adopt is the composition of polyurethane resin and non-toxic solns directly to be coated on the base cloths such as nonwoven fabric, woven or woven cloth, and is dry under about 50-150 ℃ temperature then, thereby obtains synthetic leather.As required, repetitiousness applies repeatedly in the same way.
Its physical property quality of synthetic leather of using above-mentioned innoxious solvent to obtain by dry method all meets or exceeds the synthetic leather of the toxic solvent acquisition of original use, can replace the toxic solvent that uses in the original synthetic leather manufacture process fully; Secondly be innoxious solvent owing to what use, so safeguarded workers ' health and reduced environmental pollution; The present invention adopts the oxolane equal solvent in addition, therefore greatly reduces the manufacturing cost of innoxious solvent.
The specific embodiment
Embodiment 1
A kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone in described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
90 parts in ethyl acetate
40 parts in acetone
10 parts of methyl iso-butyl ketone (MIBK)s
10 parts of DAAs
Ethyl acetate, acetone, methyl iso-butyl ketone (MIBK), DAA are mixed, and stirring at normal temperatures to be mixed with innoxious solvent.
When manufacturing synthetic leather in dry method, the innoxious solvent of above-mentioned component preparation is replaced being applied directly on the fabrics such as woven or woven cloth after the toxic solvent of the original equivalent of using of certain synthetic leather manufactory and the polyurethane resin mixing and stirring, dry under about 50-150 ℃ temperature then, thus synthetic leather obtained.This synthetic leather detects through Shanghai Entry-Exit Inspection and Quarantine bureau, and qualification result is referring to embodiment effect table.
Embodiment 2
A kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, used cosolvent is ethyl acetate, DAA, acetone, methyl iso-butyl ketone (MIBK) in described innoxious solvent, used extractant is acetone, methyl iso-butyl ketone (MIBK), used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
100 parts in ethyl acetate
50 parts in acetone
10 parts of DAAs
5 parts of methyl iso-butyl ketone (MIBK)s
Ethyl acetate, acetone, DAA, methyl iso-butyl ketone (MIBK) are mixed, and stirring at normal temperatures to be mixed with innoxious solvent.
When manufacturing synthetic leather in dry method, the innoxious solvent of above-mentioned component preparation is replaced being applied directly on the fabrics such as woven or woven cloth after the toxic solvent of the original equivalent of using of certain synthetic leather manufactory and the polyurethane resin mixing and stirring, dry under about 50-150 ℃ temperature then, thus synthetic leather obtained.This synthetic leather detects through Shanghai Entry-Exit Inspection and Quarantine bureau, and qualification result is referring to embodiment effect table.
Embodiment 3
A kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone in described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, used crosslinking agent is methyl iso-butyl ketone (MIBK), sulfone, and described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of sulfones
Ethyl acetate, acetone, methyl iso-butyl ketone (MIBK), DAA, sulfone are mixed, and stirring at normal temperatures to be mixed with innoxious solvent, adds sulfone and makes product quality improve greatly.
When manufacturing synthetic leather in dry method, the innoxious solvent of above-mentioned component preparation is replaced being applied directly on the fabrics such as woven or woven cloth after the toxic solvent of the original equivalent of using of certain synthetic leather manufactory and the polyurethane resin mixing and stirring, dry under about 50-150 ℃ temperature then, thus synthetic leather obtained.This synthetic leather detects through Shanghai Entry-Exit Inspection and Quarantine bureau, and qualification result is referring to embodiment effect table.
Embodiment 4
A kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, used cosolvent is ethyl acetate, DAA, acetone, methyl iso-butyl ketone (MIBK), oxolane in described innoxious solvent, used extractant is acetone, methyl iso-butyl ketone (MIBK), used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of oxolanes.
Ethyl acetate, acetone, DAA, methyl iso-butyl ketone (MIBK), oxolane are mixed, and stirring at normal temperatures to be mixed with innoxious solvent, adds oxolane and can reduce cost of goods manufactured.
When manufacturing synthetic leather in dry method, the innoxious solvent of above-mentioned component preparation is replaced being applied directly on the fabrics such as woven or woven cloth after the toxic solvent of the original equivalent of using of certain synthetic leather manufactory and the polyurethane resin mixing and stirring, dry under about 50-150 ℃ temperature then, thus synthetic leather obtained.This synthetic leather detects through Shanghai Entry-Exit Inspection and Quarantine bureau, and qualification result is referring to embodiment effect table.
Embodiment 5
A kind of innoxious solvent that is used for manufacturing synthetic leather in dry method, contain cosolvent, extractant and crosslinking agent, used cosolvent is ethyl acetate, DAA, acetone, methyl iso-butyl ketone (MIBK), oxolane in described innoxious solvent, used extractant is acetone, methyl iso-butyl ketone (MIBK), used crosslinking agent is methyl iso-butyl ketone (MIBK), sulfone, and described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
5 parts of sulfones
5 parts of oxolanes.
Ethyl acetate, acetone, DAA, methyl iso-butyl ketone (MIBK), sulfone, oxolane are mixed, and stirring at normal temperatures to be mixed with innoxious solvent.
When manufacturing synthetic leather in dry method, the innoxious solvent of above-mentioned component preparation is replaced being applied directly on the fabrics such as woven or woven cloth after the toxic solvent of the original equivalent of using of certain synthetic leather manufactory and the polyurethane resin mixing and stirring, dry under about 50-150 ℃ temperature then, thus synthetic leather obtained.
In addition, use the innoxious solvent of being prepared among the present invention can replace former poisonous solvent, to other fabrication process condition in the synthetic leather manufacture process without any qualification.
The embodiment effect
Adopt innoxious solvent of the present invention to replace the original prepared synthetic leather of toxic solvent that uses of above-mentioned synthetic leather manufactory to be listed as follows through Shanghai Entry-Exit Inspection and Quarantine bureau's industrial goods and raw material detection technique center detection qualification result:
Remarks: " requirement " is GB/T 8949-1995 standard C class, the index of high-class product.
In sum, the toxic solvent that a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method of the present invention can replace original synthetic leather manufacture process to use has fully been safeguarded workers ' health to a great extent and has been reduced environmental pollution.
Claims (10)
1. an innoxious solvent that is used for manufacturing synthetic leather in dry method contains cosolvent, extractant and crosslinking agent, it is characterized in that, described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part
Sulfone 0-20 part
Oxolane 0-20 part.
2. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 1, it is characterized in that used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone in described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part.
3. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 2 is characterized in that, also adds sulfone as crosslinking agent, and its consumption is 5-20 part.
4. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 2 is characterized in that described innoxious solvent component by weight is as follows:
90 parts in ethyl acetate
40 parts in acetone
10 parts of methyl iso-butyl ketone (MIBK)s
10 parts of DAAs.
5. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 2 is characterized in that described innoxious solvent component by weight is as follows:
100 parts in ethyl acetate
50 parts in acetone
10 parts of DAAs
5 parts of methyl iso-butyl ketone (MIBK)s.
6. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 3 is characterized in that described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of sulfones.
7. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 1, it is characterized in that used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone, oxolane in described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, used crosslinking agent is a methyl iso-butyl ketone (MIBK), and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
DAA 5-30 part
Methyl iso-butyl ketone (MIBK) 5-30 part
Oxolane 5-20 part.
8. as claim 1 or 7 described a kind of innoxious solvents that are used for manufacturing synthetic leather in dry method, it is characterized in that described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
10 parts of oxolanes.
9. a kind of innoxious solvent that is used for manufacturing synthetic leather in dry method as claimed in claim 1, it is characterized in that used cosolvent is ethyl acetate, methyl iso-butyl ketone (MIBK), DAA, acetone, oxolane in described innoxious solvent, used extractant is methyl iso-butyl ketone (MIBK), acetone, used crosslinking agent is methyl iso-butyl ketone (MIBK), sulfone, and described innoxious solvent component by weight is as follows:
Ethyl acetate 40-120 part
Acetone 10-50 part
530 parts of DAAs
Methyl iso-butyl ketone (MIBK) 5-30 part
520 parts of sulfones
Oxolane 5-20 part.
10. as claim 1 or 9 described a kind of innoxious solvents that are used for manufacturing synthetic leather in dry method, it is characterized in that described innoxious solvent component by weight is as follows:
50 parts in ethyl acetate
20 parts in acetone
20 parts of methyl iso-butyl ketone (MIBK)s
15 parts of DAAs
5 parts of sulfones
5 parts of oxolanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100914836A CN100412264C (en) | 2005-09-13 | 2006-06-15 | Innoxious solvent for manufacturing synthetic leather in dry method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510060737 | 2005-09-13 | ||
| CN200510060737.3 | 2005-09-13 | ||
| CNB2006100914836A CN100412264C (en) | 2005-09-13 | 2006-06-15 | Innoxious solvent for manufacturing synthetic leather in dry method |
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| Publication Number | Publication Date |
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| CN1928215A CN1928215A (en) | 2007-03-14 |
| CN100412264C true CN100412264C (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100914836A Active CN100412264C (en) | 2005-09-13 | 2006-06-15 | Innoxious solvent for manufacturing synthetic leather in dry method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103805A (en) * | 2013-03-05 | 2013-05-15 | 胡先念 | Application of sec-butyl acetate as solvent in production of synthetic leather |
| CN112575594B (en) * | 2020-11-25 | 2022-05-24 | 林振明 | Functional solvent and polyurethane slurry for dry preparation process of PU synthetic leather |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0465584A (en) * | 1990-07-02 | 1992-03-02 | Kanebo Ltd | Leather-like sheetlike material and production thereof |
| JPH05313301A (en) * | 1992-05-07 | 1993-11-26 | Fuji Photo Film Co Ltd | Base body for photographic print paper and its production |
| US6492437B1 (en) * | 2001-06-21 | 2002-12-10 | National Starch And Chemical Investment Holding Corporation | Solvent-based process for manufacturing latent curing catalysts |
-
2006
- 2006-06-15 CN CNB2006100914836A patent/CN100412264C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0465584A (en) * | 1990-07-02 | 1992-03-02 | Kanebo Ltd | Leather-like sheetlike material and production thereof |
| JPH05313301A (en) * | 1992-05-07 | 1993-11-26 | Fuji Photo Film Co Ltd | Base body for photographic print paper and its production |
| US6492437B1 (en) * | 2001-06-21 | 2002-12-10 | National Starch And Chemical Investment Holding Corporation | Solvent-based process for manufacturing latent curing catalysts |
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| CN1928215A (en) | 2007-03-14 |
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