CN106757493A - A kind of blueness defends material spandex preparation method - Google Patents
A kind of blueness defends material spandex preparation method Download PDFInfo
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- CN106757493A CN106757493A CN201710023277.XA CN201710023277A CN106757493A CN 106757493 A CN106757493 A CN 106757493A CN 201710023277 A CN201710023277 A CN 201710023277A CN 106757493 A CN106757493 A CN 106757493A
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- Prior art keywords
- stoste
- blueness
- mill base
- spandex
- preparation
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/94—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of other polycondensation products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Knitting Of Fabric (AREA)
- Artificial Filaments (AREA)
Abstract
The present invention provides a kind of blueness and defends material spandex preparation method, is related to colorful spandex fiber preparing technical field, and preparation process is：Polytetramethylene ether diol and diisocyanate species are carried out into prepolymerization reaction in organic solvent first, adding amine carries out chain extension and terminating reaction, high viscosity stoste is obtained, then phthalocyanine blue mill base is prepared, colorant and high viscosity stoste are mixed to prepare blue stoste, final ripening, spinning；The mixture that the method passes through addition magnesium stearate and magnesium palmitate in mill base, increased " self-lubricating " performance of spandex, unwinding and the creep resistance of spandex spinning cake can be improved without adding antitack agent, tackifier etc. again, from phthalocyanine blue as pigment, safety and environmental protection, it is added in spandex by original liquid coloring, it is follow-up using without dyeing again, reduce the influence of manufacturing cost and reduction to environment.
Description
Technical field
The present invention relates to colorful spandex fiber preparing technical field, and in particular to a kind of blueness defends material spandex preparation method.
Background technology
Material spandex is defended to be mainly used in paper diaper, draw trousers, ring waist trousers etc..With national " independent two tire " policy relieving,
The usage amount of consumption idea transformation of new generation, paper diaper etc. is significantly increased, and the demand for defending material spandex is consequently increased.But, it is existing
With the presence of defend material spandex some problems.For example, it is existing defend material spandex because between its silk adherence it is bigger, there is spinning cake unwinding
Situations such as energy is poor, fracture of wire is more in the subsequent machining technology such as warping and weaving operation, adds generally by polymer
Antitack agent is solved, but and then cause spandex fibre with non-woven fabrics from bonding well, elastic spandex fiber non-woven fabrics it
Between slide, it is impossible to maintain the problem of the appropriate form of paper diaper, i.e. creep resistance is bad.Also, after routine defends material spandex needs
Road coloring could meet the demand in terms of color, and then road is dyeed so that the index such as dye-uptake and color fastness of spandex is less managed
Think, extreme dyeing condition more likely causes spandex thread the anomalies such as fusing occur, and then influences the elasticity of fabric and use.
The content of the invention
(1) technical problem for solving
In view of the shortcomings of the prior art, material spandex preparation method is defended the invention provides a kind of blueness, it is special by adding
Lubricant and pigment, solve the problems, such as to defend the creep properties of material spandex and colouring on the basis of spandex unwinding is kept.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of blueness defends material spandex preparation method, and step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 15-40 DEG C of water-bath, organic solvent and poly- four Asia is added
Ether glycol, stirs 20-30min, adds diisocyanate species stirring 60-90min, and pre-polymer solution is obtained.
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 10-12 DEG C, chain extension is added while stirring
Agent and terminator, react 40-60min, form high viscosity stoste.
(3) preparation of phthalocyanine blue mill base：Phthalocyanine blue is placed in 100 DEG C of drying boxes and dries 2-3h, added after cooling organic
Solvent, stirring, and be continuously added dispersant, lubricant, delustering agent and anti-yellow agent carry out it is pre-dispersed, it is pre-dispersed after be ground,
Obtain ultra-fine mill base.
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added to high viscosity obtained in step (2) former
In liquid, to mixture high-speed stirred, the blue stoste of uniform stabilization is formed.
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 40-50 DEG C, by dry-spinning process system
It is standby go out blue polyurethane elastomer.
Preferably, the mol ratio of diisocyanate cpd and polytetramethylene ether diol described in step (1) is 2.2-
2.5:1。
Preferably, the solid content of step (2) the high viscosity stoste is 35-40%.
Preferably, step (3) described lubricant is the mixture of magnesium stearate and magnesium palmitate, and mass ratio is 2:3.
Preferably, step (3) described delustering agent is titanium dioxide, and it is 1 with the mass ratio of phthalocyanine blue:20.
Preferably, step (3) the anti-yellow agent is LDZ-9.
Preferably, the solid content of step (3) described mill base is 35-45%.
The material used in the technical program is as described below：
Organic solvent selects DMA (DMAC) or DMF (DMF)；
Diisocyanate species select 4,4- methyl diphenylene diisocyanates or 2,4- diphenylmethane diisocyanates
Ester；
Chain extender is selected from least one in ethylenediamine, isopropyl diamines or pentanediamine；
Terminator is selected from least one in diethylamine, di-n-propylamine, cyclohexylamine, n-butanol or monoethanolamine；
Dispersant is the mixture of Hydroxylated acrylic resin and styrene, and mass ratio is 3:1.
(3) beneficial effect
Material spandex preparation method is defended the invention provides a kind of blueness, by adding magnesium stearate and palmitic acid in mill base
The mixture of magnesium, increased " self-lubricating " performance of spandex, and spandex spinning cake can be improved without adding antitack agent, tackifier etc. again
Unwinding and creep resistance, from phthalocyanine blue as pigment, safety and environmental protection is added in spandex by original liquid coloring, subsequently made
With without dyeing again, the influence of manufacturing cost and reduction to environment is reduced.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of blueness defends material spandex preparation method, and step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 25 DEG C of water-baths, 250kgN, N- dimethylacetamides is added
Amine and the polytetramethylene ether diol that 100kg molecular weight is 2000, stir 25min, add 4, the 4- diphenylmethyls of 28.8kg
Alkane diisocyanate stirs 80min, and pre-polymer solution is obtained.
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 10 DEG C, 1.5kg penta is added while stirring
Diamines, 0.22kg cyclohexylamine and 0.23kg n-butanols, react 50min, form the high viscosity stoste that solid content is 37%.
(3) preparation of phthalocyanine blue mill base：40kg phthalocyanine blues are placed in 100 DEG C of drying boxes and dry 3h, added after cooling
In 100kg DMAs, stirring, and be continuously added 10kg Hydroxylated acrylic resins and styrene mixture,
The mixture of 1.1kg magnesium stearates and magnesium palmitate, 2kg titanium dioxide and the anti-yellow agent LDZ-9 of 0.6kg carry out it is pre-dispersed, pre- point
It is ground after dissipating, obtains the ultra-fine mill base that solid content is 40%.
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added to high viscosity obtained in step (2) former
In liquid, to mixture high-speed stirred, the blue stoste of uniform stabilization is formed.
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 45 DEG C, is prepared by dry-spinning process
Blue polyurethane elastomer.
Embodiment 2：
A kind of blueness defends material spandex preparation method, and step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 35 DEG C of water-baths, 260kgN, N- dimethylacetamides is added
Amine and the polytetramethylene ether diol that 100kg molecular weight is 2000, stir 20min, add 4, the 4- diphenyl methanes of 30kg
Diisocyanate stirs 70min, and pre-polymer solution is obtained.
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 11 DEG C, 1.6kg second is added while stirring
Diamines, 1.6kg isopropyls diamines, 0.23kg diethylamine and 0.24kg monoethanolamines, react 45min, form the height that solid content is 36%
Viscosity stoste.
(3) preparation of phthalocyanine blue mill base：35kg phthalocyanine blues are placed in 100 DEG C of drying boxes and dry 3h, added after cooling
In 85kg DMAs, stirring, and be continuously added 8kg Hydroxylated acrylic resins and styrene mixture,
The mixture of 0.9kg magnesium stearates and magnesium palmitate, 1.75kg titanium dioxide and the anti-yellow agent LDZ-9 of 0.5kg carry out it is pre-dispersed, in advance
It is ground after dispersion, obtains the ultra-fine mill base that solid content is 38%.
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added to high viscosity obtained in step (2) former
In liquid, to mixture high-speed stirred, the blue stoste of uniform stabilization is formed.
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 40 DEG C, is prepared by dry-spinning process
Blue polyurethane elastomer.
Embodiment 3：
A kind of blueness defends material spandex preparation method, and step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 40 DEG C of water-baths, 250kgN, N- dimethylacetamides is added
Amine and the polytetramethylene ether diol that 100kg molecular weight is 2000, stir 30min, add 4, the 4- diphenylmethyls of 27.5kg
Alkane diisocyanate stirs 60min, and pre-polymer solution is obtained.
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 10 DEG C, 1.4kg second is added while stirring
Diamines, 0.23kg diethylamine, 0.23kg di-n-propylamines and 0.24kg monoethanolamines, react 40min, form the height that solid content is 35% and glue
Degree stoste.
(3) preparation of phthalocyanine blue mill base：38kg phthalocyanine blues are placed in 100 DEG C of drying boxes and dry 2h, added after cooling
In 80kg DMAs, stirring, and be continuously added 9kg Hydroxylated acrylic resins and styrene mixture,
The mixture of 1.2kg magnesium stearates and magnesium palmitate, 1.9kg titanium dioxide and the anti-yellow agent LDZ-9 of 0.8kg carry out it is pre-dispersed, in advance
It is ground after dispersion, obtains the ultra-fine mill base that solid content is 45%.
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added to high viscosity obtained in step (2) former
In liquid, to mixture high-speed stirred, the blue stoste of uniform stabilization is formed.
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 50 DEG C, is prepared by dry-spinning process
Blue polyurethane elastomer.
Embodiment 4：
A kind of blueness defends material spandex preparation method, and step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 40 DEG C of water-baths, 240kgN, N- dimethylacetamides is added
Amine and the polytetramethylene ether diol that 100kg molecular weight is 2000, stir 30min, add 4, the 4- diphenylmethyls of 31.3kg
Alkane diisocyanate stirs 90min, and pre-polymer solution is obtained.
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 12 DEG C, 1.7kg second is added while stirring
Diamines, 1.7kg pentanediamines, 0.25kg monoethanolamines, react 60min, form the high viscosity stoste that solid content is 40%.
(3) preparation of phthalocyanine blue mill base：45kg phthalocyanine blues are placed in 100 DEG C of drying boxes and dry 2.5h, added after cooling
In 120kg DMAs, stirring, and be continuously added 11kg Hydroxylated acrylic resins and styrene mixture,
The mixture of 1.4kg magnesium stearates and magnesium palmitate, 2.25kg titanium dioxide and the anti-yellow agent LDZ-9 of 1kg carry out it is pre-dispersed, pre- point
It is ground after dissipating, obtains the ultra-fine mill base that solid content is 35%.
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added to high viscosity obtained in step (2) former
In liquid, to mixture high-speed stirred, the blue stoste of uniform stabilization is formed.
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 45 DEG C, is prepared by dry-spinning process
Blue polyurethane elastomer.
To sum up, the embodiment of the present invention has the advantages that：
Blueness prepared by the present invention defends material spandex improves unwinding and the creep resistance of spinning cake, is added by original liquid coloring
Phthalocyanine blue pigment, it is follow-up using without dyeing again, reduce the influence of manufacturing cost and reduction to environment.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic；And these modification or
Replace, do not make the spirit and scope of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution.
Claims (7)
1. a kind of blueness defends material spandex preparation method, it is characterised in that step is as follows：
(1) prepolymerization reaction：Container with stirring is put into 15-40 DEG C of water-bath, organic solvent and polytetramethylene is added
Ether glycol, stirs 20-30min, adds diisocyanate species stirring 60-90min, and pre-polymer solution is obtained；
(2) chain extension and terminating reaction：Step (1) pre-polymer solution is cooled to 10-12 DEG C, while stirring add chain extender and
Terminator, reacts 40-60min, forms high viscosity stoste；
(3) preparation of phthalocyanine blue mill base：Phthalocyanine blue is placed in 100 DEG C of drying boxes and dries 2-3h, organic solvent is added after cooling,
Stirring, and be continuously added dispersant, lubricant, delustering agent and anti-yellow agent carry out it is pre-dispersed, it is pre-dispersed after be ground, surpassed
Thin mill base；
(4) mill base mixes with stoste：Ultra-fine mill base obtained in step (3) is added in high viscosity stoste obtained in step (2),
To mixture high-speed stirred, the blue stoste of uniform stabilization is formed；
(5) spinning：Blue stoste obtained in step (4) is cured into 40h at 40-50 DEG C, is prepared by dry-spinning process
Blue polyurethane elastomer.
2. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that two isocyanic acids described in step (1)
The mol ratio of ester compounds and polytetramethylene ether diol is 2.2-2.5:1.
3. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that step (2) the high viscosity stoste
Solid content be 35-40%.
4. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that step (3) described lubricant is hard
The mixture of fatty acid magnesium and magnesium palmitate, mass ratio is 2:3.
5. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that step (3) described delustering agent is two
Titanium oxide, it is 1 with the mass ratio of phthalocyanine blue:20.
6. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that step (3) the anti-yellow agent is
LDZ-9。
7. blueness as claimed in claim 1 defends material spandex preparation method, it is characterised in that step (3) described mill base containing solid
It is 35-45% to measure.
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| CN201710023277.XA CN106757493A (en) | 2017-01-13 | 2017-01-13 | A kind of blueness defends material spandex preparation method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502978A (en) * | 2017-10-23 | 2017-12-22 | 浙江华峰氨纶股份有限公司 | A kind of paper diaper spandex and its production method for improving unwinding and creep properties |
| CN108221076A (en) * | 2018-01-11 | 2018-06-29 | 浙江华峰氨纶股份有限公司 | A kind of preparation method of paper diaper spandex |
| CN111485299A (en) * | 2020-04-28 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Preparation method and application of Ag (III) -PHMB/ZrP and antibacterial spandex |
| CN114959943A (en) * | 2021-02-18 | 2022-08-30 | 南亚塑胶工业股份有限公司 | Thermoplastic polyurethane elastic fiber, manufacturing method and fabric containing same |
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| CN104141176A (en) * | 2014-07-29 | 2014-11-12 | 连云港杜钟氨纶有限公司 | Spandex dyeing assistant and preparation method thereof |
| CN104878463A (en) * | 2015-06-08 | 2015-09-02 | 连云港杜钟新奥神氨纶有限公司 | Preparing method of hyperdispersant and non-dyed polyurethane elastic fiber |
| CN105837780A (en) * | 2016-04-01 | 2016-08-10 | 连云港杜钟新奥神氨纶有限公司 | Easy-coloring polyurethane elastic fiber and production method thereof |
| EP3067445A1 (en) * | 2015-03-07 | 2016-09-14 | Instytut Wlokiennictwa | A method for biofunctionalization of textile materials |
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| CN104141176A (en) * | 2014-07-29 | 2014-11-12 | 连云港杜钟氨纶有限公司 | Spandex dyeing assistant and preparation method thereof |
| EP3067445A1 (en) * | 2015-03-07 | 2016-09-14 | Instytut Wlokiennictwa | A method for biofunctionalization of textile materials |
| CN104878463A (en) * | 2015-06-08 | 2015-09-02 | 连云港杜钟新奥神氨纶有限公司 | Preparing method of hyperdispersant and non-dyed polyurethane elastic fiber |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107502978A (en) * | 2017-10-23 | 2017-12-22 | 浙江华峰氨纶股份有限公司 | A kind of paper diaper spandex and its production method for improving unwinding and creep properties |
| CN108221076A (en) * | 2018-01-11 | 2018-06-29 | 浙江华峰氨纶股份有限公司 | A kind of preparation method of paper diaper spandex |
| CN108221076B (en) * | 2018-01-11 | 2020-07-10 | 浙江华峰氨纶股份有限公司 | Preparation method of spandex for paper diaper |
| CN111485299A (en) * | 2020-04-28 | 2020-08-04 | 连云港杜钟新奥神氨纶有限公司 | Preparation method and application of Ag (III) -PHMB/ZrP and antibacterial spandex |
| CN114959943A (en) * | 2021-02-18 | 2022-08-30 | 南亚塑胶工业股份有限公司 | Thermoplastic polyurethane elastic fiber, manufacturing method and fabric containing same |
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