CN105544202B - Improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability - Google Patents
Improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability Download PDFInfo
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- CN105544202B CN105544202B CN201610080132.9A CN201610080132A CN105544202B CN 105544202 B CN105544202 B CN 105544202B CN 201610080132 A CN201610080132 A CN 201610080132A CN 105544202 B CN105544202 B CN 105544202B
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- base fabric
- synthetic leather
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- collagen
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/395—Isocyanates
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/15—Proteins or derivatives thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Abstract
Improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability, superfine fiber synthetic leather base cloth is pre-processed using diisocyanate first, makes it in Fypro and polyurethane surface while is grafted NCO；The collagen of preparation is grafted to isocyanate-modified superfine fiber synthetic leather base cloth surface again, realizes that collagen to the covalent modified of superfine fiber synthetic leather base cloth surface, improves its hydrophily；The present invention effectively increases the active group on superfine fiber synthetic leather base cloth surface, collagen is realized to the covalent modified of superfine fiber synthetic leather base cloth surface, so as to improve the sanitation performance of superfine fiber synthetic leather base cloth and dyeability, the recycling of discarded collagen is realized, while solves the problems, such as sanitation performance of superfine fibre chemical leather difference and dyeability difference.
Description
Technical field
The invention belongs to technical field of composite preparation, and in particular to improve superfine polyamide fiber synthetic leather wholesomeness
Can be with the method for dyeability.
Background technology
Superfine fiber chemical leather is that polyurethane elastomer is as the compound of surface layer using superfine polyamide fiber as base layer
Material, there is the structure extremely similar to natural leather, be copy corium fiber weave structure carry out it is imitated, so from hand
The performance of approximate corium is suffered from sense and physical and mechanical properties, some mechanical performance is higher than corium sometimes.
But more space, tropocollagen molecule between collagenous fibres from natural leather from the point of view of fibr tissue and chemical composition be present
Substantial amounts of hydrophilic radical on chain, impart the excellent water vapor permeability of natural leather and water vapour permeability, superfine polyamide fiber synthesis
Polar group in leather on polyamide and polyurethane molecular chain is few, and this just determines it in terms of vapor pervious performance and corium phase
Than very big gap also be present.
Superfine fiber chemical leather is made up of superfine fiber fabric and PU polyurethane resin surface layer two parts.Superfine fibre closes
Finished leather is mainly the composite that is made up of Fypro (superfine fibre) and PU polyurethane films with base fabric, its respective institute's accounting
Example is 40%~50%.For the structure composition feature of superfine fiber chemical leather, analysis finds to improve superfine fiber chemical leather base
The correlation technique of cloth sanitation performance is mainly obtained in terms of superfine polyamide fiber and polyurethane resin two to set about being modified, and passes through one
Fixed modified method increases the active group of scrim surfaces, and then improves the sanitation performance of superfine fiber chemical leather.At present, grind
The person of studying carefully is modified by the methods of enzyme process, acid-hydrolysis method, alkaline process and addition hydroaropic substance to Fypro,
The methods of being modified by blending and modifying and hydrophilic polyurethane has carried out certain research to polyurethane resin.Using whole after these
Decorations technology is handled superfine fiber chemical leather, can improve the wholesomeness of superfine fiber synthetic leather base cloth to a certain extent
Can, but its effect is still unsatisfactory.
Gelatin is a kind of both sexes, nontoxic natural high molecular substance, and the collagen extracted after hydrolysis is typical two
Property polyelectrolyte, contains substantial amounts of amino and carboxyl isoreactivity group.In addition, China is as leather industry big country, by discarded leather
Substantial amounts of gelatin extraction is out used in bits, can economize on resources, prevent the pollution of the environment, and realizes the resource of discarded collagen
Change and utilize.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, it is an object of the invention to provide improve superfine polyamide fiber synthetic leather
The method of sanitation performance and dyeability, by being grafted collagen simultaneously to polyamide and polyurethane, solves prior art
The problem of permeable gas of middle base fabric is not high.
To achieve these goals, the technical solution adopted in the present invention is to improve superfine polyamide fiber synthetic leather to defend
Natural disposition can specifically be implemented with the method for dyeability according to following steps：
Step 1：The pretreatment of base fabric
Base fabric is placed on to boiling 25-35min in 60-70 DEG C of water-bath, and in 80 DEG C -90 DEG C of drying in oven 3h；
Step 2：Isocyanate-crosslinked modified superfine fiber synthetic leather base cloth
The base fabric for passing through pretreatment in step 1 is placed in dye machine, while adds 2000% solvent of base fabric dry weight,
Base fabric dry weight 4%-8% crosslinking agent diisocyanate and the base fabric dry weight 0.007%-0.03% fourth of catalyst dibutyltin cinnamic acid two
Ji Xi, 80-100 DEG C of temperature is set, rotation time is respectively 3h, is then stopped, and is taken out, and acetone washing, is determined in cleaning solution not
The amount of the diisocyanate of grafting, so as to calculate the amount for the diisocyanate being grafted in base fabric；
Step 3：Collagen dissolves
Collagen protein powder is dissolved in glyoxaline ion liquid, wherein, the amount of collagen protein powder and glyoxaline ion liquid is pressed
Mass ratio 1：50~1：10, quickly stirred at 60-70 DEG C of temperature, collagen is fully dissolved；Obtain lysate；
Step 4：Superfine fiber synthetic leather base cloth is modified using collagen
Lysate in selecting step three is added in dye machine, and the amount of collagen protein powder calculates for step 2 wherein in lysate
The diisocyanate being grafted in base fabric amount 50%-90%, according to base fabric dry weight 2000% add solvent acetone, will
The base fabric that diisocyanate is grafted with step 2 is added in dye machine, and control temperature uniform stirring, rotates 3- at 80-90 DEG C
4h, take out base fabric, naturally dry.
Solvent in described step two is toluene or acetone.
Described crosslinking agent diisocyanate is hexamethylene diisocyanate or IPDI.
Beneficial effects of the present invention：
The present invention is grafted collagen egg simultaneously using by crosslinking agent diisocyanate in polyurethane and superfine polyamide fiber
In vain, the active group on superfine fiber synthetic leather base cloth surface is added, to realize collagen to superfine fiber synthetic leather base cloth
It is covalent modified, improve Water Vapor Permeability of Hyperfine Fibre Synthetic Leather, and then overcome sanitation performance of superfine fibre chemical leather difference lack
Point.Meanwhile the present invention reasonably utilizes collagen, realizes the recycling of discarded collagen.
Embodiment
The present invention is described in detail below by embodiment.
The present invention is related to following three equations to the collagen-modified of superfine polyamide fiber synthetic leather base cloth：
(1) reaction of isocyanates and polyamide
(2) reaction of isocyanates and polyurethane
(3) reaction of the woven fabric base fabric of NCO activation and collagen
Collagen-modified side with reference to embodiment to superfine polyamide fiber synthetic leather base cloth provided by the invention
Method is described in further detail.
Embodiment 1：
Step 1：The pretreatment of base fabric
The base fabric that dry weight is 14.8g is placed on boiling 25min in 65 DEG C of water-bath, and in 80 DEG C of drying in oven
3h；
Step 2：Isocyanate-crosslinked modified superfine fiber synthetic leather base cloth
It will be placed in step 1 by pretreated base fabric in dye machine, solvent first added according to the 2000% of base fabric dry weight
Benzene, hexamethylene diisocyanate (HDI) is added according to the 4% of base fabric dry weight, while add the 0.013% of base fabric dry weight
0.2mL catalyst dibutyltin dilaurylates, 80 DEG C of temperature is set, rotation time 3h, then stopped, being taken out, acetone washing, surveyed
Determine the amount of diisocyanate non-grafted in cleaning solution, so as to calculate the amount for the diisocyanate being grafted in base fabric, about
The 70% of starting；
Step 3：Collagen dissolves
2g collagen protein powders are dissolved in 50g glyoxaline ion liquids, quickly stirred under temperature 60 C, make protein point
Sub fully dissolving, obtains lysate；
Step 4：Superfine fiber synthetic leather base cloth is modified using collagen
Weigh lysate, wherein in lysate collagen for grafting amount of isocyanate 50%, calculate lysate is about
30g；30g lysates are added in dye machine, solvent acetone is added according to the 2000% of base fabric dry weight, step 2 is grafted with two
The base fabric of isocyanates is added in dye machine, by temperature control at 60 DEG C, uniform stirring, is stopped after rotating 3h, is taken out base fabric, water
Wash rear naturally dry.
Embodiment 2：
Step 1：The pretreatment of base fabric
The base fabric that dry weight is 15.2g is placed on boiling 30min in 75 DEG C of water-bath, and in 90 DEG C of drying in oven
3h；
Step 2：Isocyanate-crosslinked modified superfine fiber synthetic leather base cloth
It will be placed in step 1 by pretreated base fabric in dye machine, solvent third added according to the 2000% of base fabric dry weight
Ketone, IPDI (IPDI) is added according to the 6% of base fabric dry weight, while add 0.2mL catalyst dibutyltin cinnamic acids
Dibutyl tin, 85 DEG C of temperature is set, rotation time 3h, then stopped, being taken out, acetone washing, determined non-grafted in cleaning solution
The amount of diisocyanate, so as to calculate the amount for the diisocyanate being grafted in base fabric, 64% about originated；
Step 3：Collagen dissolves
3g collagen protein powder is dissolved in 50g glyoxaline ion liquids, is quickly stirred at 65 DEG C of temperature, makes protein
Molecule fully dissolves, and obtains lysate；
Step 4：Superfine fiber synthetic leather base cloth is modified using collagen
Weigh lysate, wherein in lysate collagen for grafting amount of isocyanate 60%, calculate lysate is about
27.7g；27.7g lysates are added in dye machine, solvent acetone is added according to the 2000% of base fabric dry weight, step 2 is grafted
The base fabric for having diisocyanate is added in dye machine, by temperature control at 70 DEG C, uniform stirring, is stopped after rotating 3h, is taken out base
Cloth, naturally dry after washing.
Embodiment 3：
Step 1：The pretreatment of base fabric
The base fabric that dry weight is 14.5g is placed on boiling 30min in 75 DEG C of water-bath, and in 90 DEG C of drying in oven
3h；
Step 2：Isocyanate-crosslinked modified superfine fiber synthetic leather base cloth
It will be placed in step 1 by pretreated base fabric in dye machine, solvent first added according to the 2000% of base fabric dry weight
Benzene, hexamethylene diisocyanate (HDI) is added according to the 8% of base fabric dry weight, while add proper catalyst tin dilaurate two
Butyl tin, 95 DEG C of temperature is set, rotation time 3h, then stopped, being taken out, acetone washing, determined non-grafted in cleaning solution
The amount of diisocyanate, so as to calculate the amount for the diisocyanate being grafted in base fabric, 77% about originated；
Step 3：Collagen dissolves
5g collagen protein powders are dissolved in 50g glyoxaline ion liquids, quickly stirred under temperature 70 C, make protein point
Sub fully dissolving, obtains lysate；
Step 4：Superfine fiber synthetic leather base cloth is modified using collagen
Weigh lysate, wherein in lysate collagen for grafting amount of isocyanate 70%, calculate lysate is about
48.3g；48.3g lysates are added in dye machine, solvent acetone is added according to the 2000% of base fabric dry weight, step 2 is grafted
The base fabric for having diisocyanate is added in dye machine, by temperature control at 65 DEG C, uniform stirring, is stopped after rotating 3h, is taken out base
Cloth, naturally dry after washing.
Claims (3)
1. improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability, it is characterised in that specifically according to
Lower step is implemented：
Step 1：The pretreatment of base fabric
Base fabric is placed on to boiling 25-35min in 60-70 DEG C of water-bath, and in 80 DEG C -90 DEG C of drying in oven 3h；
Step 2：Isocyanate-crosslinked modified superfine fiber synthetic leather base cloth
The base fabric for passing through pretreatment in step 1 is placed in dye machine, while adds 2000% solvent of base fabric dry weight, base fabric
Dry weight 4%-8% crosslinking agent diisocyanate and base fabric dry weight 0.007%-0.03% catalyst dibutyltin cinnamic acid dibutyl
Tin, 80-100 DEG C of temperature is set, rotation time 3h, then stopped, being taken out, acetone washing, determined non-grafted two in cleaning solution
The amount of isocyanates, so as to calculate the amount for the diisocyanate being grafted in base fabric；
Step 3：Collagen dissolves
Collagen protein powder is dissolved in glyoxaline ion liquid, wherein, the amount of collagen protein powder and glyoxaline ion liquid presses quality
Than 1：50~1：10, quickly stirred at 60-70 DEG C of temperature, collagen is fully dissolved；Obtain lysate；
Step 4：Superfine fiber synthetic leather base cloth is modified using collagen
Lysate in selecting step three is added in dye machine, and the amount of collagen protein powder is connecing for step 2 calculating wherein in lysate
Branch adds solvent acetone, by step to the 50%-90% of the amount of the diisocyanate in base fabric according to the 2000% of base fabric dry weight
The base fabric that diisocyanate is grafted with two is added in dye machine, and control temperature uniform stirring, rotates 3-4h, taken at 80-90 DEG C
Go out base fabric, naturally dry after washing.
2. the method according to claim 1 for improving superfine polyamide fiber synthetic leather sanitation performance and dyeability, its
It is characterised by, the solvent in described step two is toluene or acetone.
3. the method according to claim 1 for improving superfine polyamide fiber synthetic leather sanitation performance and dyeability, its
It is characterised by, described crosslinking agent diisocyanate is hexamethylene diisocyanate or IPDI.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610080132.9A CN105544202B (en) | 2016-02-04 | 2016-02-04 | Improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability |
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| CN201610080132.9A CN105544202B (en) | 2016-02-04 | 2016-02-04 | Improve the method for superfine polyamide fiber synthetic leather sanitation performance and dyeability |
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| CN105544202A CN105544202A (en) | 2016-05-04 |
| CN105544202B true CN105544202B (en) | 2017-11-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106884340B (en) * | 2017-03-06 | 2019-03-22 | 常州大学 | A kind of cellulose base fiber fabric natural dye dying method |
| CN108570853B (en) * | 2018-05-02 | 2021-08-10 | 陕西科技大学 | Bionic synthetic leather and production method thereof |
| CN108625174B (en) * | 2018-05-02 | 2021-08-10 | 陕西科技大学 | Production method of bionic superfine fiber synthetic leather |
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| CN1654736A (en) * | 2005-01-13 | 2005-08-17 | 福州大学 | Anionic grafting method for modification of aramid fiber surface |
| CN103374819A (en) * | 2013-07-19 | 2013-10-30 | 陕西科技大学 | Method for improving moisture permeability of superfine fiber synthetic leather base cloth |
| CN103382637A (en) * | 2013-07-26 | 2013-11-06 | 陕西科技大学 | Modification method for improving hygienic performance of superfine fiber synthetic leather base fabric through collagen |
| CN103710979A (en) * | 2013-12-03 | 2014-04-09 | 陕西科技大学 | Method for improving sanitation properties of polyamide superfine fiber synthetic leather base cloth |
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2016
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|---|---|---|---|---|
| CN1654736A (en) * | 2005-01-13 | 2005-08-17 | 福州大学 | Anionic grafting method for modification of aramid fiber surface |
| CN103374819A (en) * | 2013-07-19 | 2013-10-30 | 陕西科技大学 | Method for improving moisture permeability of superfine fiber synthetic leather base cloth |
| CN103382637A (en) * | 2013-07-26 | 2013-11-06 | 陕西科技大学 | Modification method for improving hygienic performance of superfine fiber synthetic leather base fabric through collagen |
| CN103710979A (en) * | 2013-12-03 | 2014-04-09 | 陕西科技大学 | Method for improving sanitation properties of polyamide superfine fiber synthetic leather base cloth |
Non-Patent Citations (2)
| Title |
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| 胶原蛋白改性超细纤维合成革基布及其机理研究;王晓芹;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20160115(第1期);第55页表4-3及第56页4.3.1节第2段 * |
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