CN108221076A - A kind of preparation method of paper diaper spandex - Google Patents
A kind of preparation method of paper diaper spandex Download PDFInfo
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- CN108221076A CN108221076A CN201810025224.6A CN201810025224A CN108221076A CN 108221076 A CN108221076 A CN 108221076A CN 201810025224 A CN201810025224 A CN 201810025224A CN 108221076 A CN108221076 A CN 108221076A
- Authority
- CN
- China
- Prior art keywords
- spandex
- paper diaper
- preparation
- poss
- stoste
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
Abstract
The present invention is a kind of preparation method of paper diaper spandex.This method in organic solvent, then POSS solution is carried out with polyurethane urea solutions to mix curing first by polyhedral oligomeric silsesquioxane (POSS) dispersion, obtains spandex fiber stoste；Spinning solution forms as-spun fibre through high temperature path evaporating organic solvent, then through false twisting, drawing-off, winding, finally obtains paper diaper spandex.The technical method no longer carries out oiling treatment to ensure that spandex has good adhesivity to spandex；Meanwhile by the addition of POSS, solve spandex without fiber surface friction coefficient under oil treatment is big, not smooth, the easy adhesion of unwinding, easy fracture of wire the problems such as.
Description
Technical field
The invention belongs to the preparation method of polyurethane elastomeric fiber, the manufacturer of more particularly to a kind of special spandex of paper diaper
Method.
Background technology
Paper diaper are generally made of surface coating layer, absorbent core layer and lastex three parts.Lastex is then to form paper
The critical material of urine pants elastic waistline and lateral leakage protection encirclement.Most of lastex now used is the spandex fibre haveing excellent performance,
This spandex product is referred to as paper diaper spandex.Although spandex only accounts for 2-3%, spandex performance in paper diaper cost ratio
Quality directly affect paper diaper quality quality and paper diaper production efficiency height.In general, the paper haveing excellent performance
Urine pants spandex should have three features：Suitable elasticity, smoothly unwinding and good adhesiveness.First, paper diaper
Suitable elasticity and elastic-restoring force are needed with spandex.When elastic recovery is too low, paper diaper anti-side leakage effect can be caused bad；
When elastic recovery is excessively high, waistline can be made and shrink tension, influence the comfort of dress.Secondly, paper diaper are needed good with spandex
Good backing-off performance.It is shut down caused by case of fracture of wire is not caused freely because of spandex unwinding, can seriously directly affect the life of paper diaper
Produce efficiency and production cost.Finally, paper diaper spandex should have has good adhesiveness with base materials such as non-woven fabrics.In paper diaper
In production process, spandex is on base material by the fixation of the colloids such as hot melt adhesive.If spandex can not be formed firmly with base material
Adhesive effect, then spandex occurs easily during the use of paper diaper and is detached from non-woven fabrics, causes paper diaper elastic failure, side
The problems such as leakage.
During exploitation prepares paper diaper spandex, the suitable elasticity of paper diaper spandex can be by adjusting spinning
The technical parameters such as speed, draw ratio are to achieve the goal.But paper diaper spandex has good unwinding and adhesiveness simultaneously, with
It is that there are certain paradoxes for existing conventional technique.Because the conventional method for improving spandex unwinding is exactly to improve spandex
Oil content or use the better spinning oil of lubricant effect.These method essence are all to increase being isolated between spandex and spandex
Effect.And be to ensure that paper diaper spandex has good adhesiveness, most of spandex producer all selects to reduce spandex as much as possible
Oil content does not use spinning oil even.But the very few of spinning oil uses the backing-off performance for directly affecting spandex.
This unique performance requirement of paper diaper spandex often can not using common thick denier spandex factory formula technique
It achieves the goal.So related technical personnel have carried out particular study and exploitation to paper diaper with spandex both at home and abroad.Xiamen power is grand
The technical staff of company (CN 103422189A) thinks that the presence of silicone oil is cause paper diaper spandex adhesiveness bad main
Reason, therefore the said firm uses the spinning oil without element silicon, develops a kind of paper diaper spandex haveing excellent performance.It is this
Spandex surface is more puckery, influences to unwind without because mutual frictional force is too big；Resilience is moderate and stablizes, will not be because of
Resilience is too big and influences the croop property of spandex.Hyosung Corporation of South Korea technical staff (CN 101778644A) is by stoste
It is middle to improve paper diaper spandex using the magnesium stearate and N, N- diethyl -2- amidoethyl methacrylates of high-content
Unwinding.The research staff (CN 102362020A) of English Radar Audio Company of the U.S. by adding cellulose in spandex fiber stoste,
To reach the unwinding that paper diaper spandex is improved while spandex adhesiveness is not influenced.
Polyhedral oligomeric silsesquioxane (English abbreviation POSS) is a kind of with nano molecular size and organic-inorganic
The compound of hybrid structure.The frame that this compound is formed using inorganic Si-O-Si keys is core, and periphery is by organic substituent institute
It surrounds, there is unique physical property and chemical reactivity.And POSS possesses the advantages of diversified functional group, is easy to it
It is implanted to by way of being grafted, being copolymerized and be blended in general polymeric system.After POSS is introduced, the mechanics of polymer
The performances such as intensity, thermal stability, anti-flammability, inoxidizability, surface hydrophobicity oleophobic property have different degrees of raising.But so far
Until, not any document report crosses the additive produced using POSS as spandex, to improve the unwinding of spandex.
Invention content
Technical problem：The present invention is to provide a kind of preparation methods of paper diaper spandex.The present invention is ensures that spandex has
Good adhesivity no longer carries out oiling treatment to spandex.Meanwhile by the addition of POSS, spandex is solved in the work not oiled
Under the conditions of skill, fiber surface friction coefficient is big, and easy adhesion between silk and silk, unwinding tension is excessive, the technical problems such as easy fracture of wire.
Technical solution：The technical scheme is that first mixing POSS with organic solvent, the dispersion of stable uniform is formed
Liquid.POSS solution is carried out again to mix curing with polyurethane urea solutions, obtains spandex fiber stoste；Spinning solution is through high temperature path
Evaporating organic solvent forms as-spun fibre；Again through false twisting, drawing-off, winding, paper diaper spandex is finally obtained.Specific side
Case step is as follows：
1) preparation of polyhedral oligomeric silsesquioxanes POSS solution：POSS is added to container together with organic solvent
In, it first using mechanical agitator mixed at high speed, then is handled using sonic oscillation separating apparatus, it is molten to obtain finely dispersed POSS
Liquid；
2) preparation of blend spinnings stoste：Above-mentioned POSS solution is added in polyurethane urea solutions, in 40-60 DEG C of perseverance
It is stirred under the conditions of temperature, obtains spandex fiber stoste；
3) preparation of paper diaper spandex：Above-mentioned spandex fiber stoste is delivered to spinneret component, then thin through spinneret
Hole forms stoste thread；Stoste thread evaporates organic solvent by 240-260 DEG C of spinning shaft again and becomes as-spun fibre；These
As-spun fibre through scroll tube afterturn obvolvent bunchy, is drawn again through conductive filament roller, by winder winding around obtaining paper diaper spandex.
Wherein,
Used POSS is the POSS compounds containing fluorine element, and molecular structural formula is as follows,
Wherein, the functional group representated by R is-CH2CH2CF3、-CH2(CH2)3CF3、-CH2(CH2)5CF3、 -CH2(CH2)7CF3、-CH2(CH2)9CF3、-CH2CH2CH(CF3)2、-CH2CH2CH2OCH(CF3)2In one kind.
The organic solvent is dimethylformamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), tetrahydrofuran, acetic acid first
One kind in ester or ethyl acetate.
The mass concentration of the POSS solution is 5~35%.
The viscosity of the polyurethane urea solutions is 1000~3000 pools, and mass concentration is 30~40%.
The mass ratio of the POSS and polyurethane-urea is 1：(9~99).
The scroll tube is air scroll tube, and false twisting air ring length is controlled at 2~20 millimeters.
The conductive filament roller number is 2, wherein the ratio between first roller rotating speed and second roller rotating speed are 1：1
~1：2.
The paper diaper are formed with spandex for 30~56 Single Fiber boundlings, and fiber number is 480~1680 denier.
The time of the mechanical agitator mixed at high speed is 0.5-2 hours；The time that sonic oscillation separating apparatus is handled
It is 1-3 hours；The time being stirred under 40-60 DEG C of constant temperature is 24-48 hours.
Advantageous effect：The technical method is as the function additive for improving spandex unwinding using POSS compounds.In ammonia
For synthetic fibre not under oil-containing precondition, spandex fibre surface roughness can effectively be reduced by adding the auxiliary agent, reduce surface static friction system
Number；Meanwhile the generation of spandex adhesion phenomenon between fiber during unwinding can be reduced, ensure that unwinding tension is stablized, unwinding
The smooth not fracture of wire of process.It is tacky alternatively, it is also possible to mitigate spandex spinning cake bottom fiber after long-time is placed, extend making for spandex
Use the period.
Specific embodiment
The specific implementation of the present invention includes the following steps：
(1) preparation of .POSS solution.It will be added in glass container together with POSS and organic solvent, first stirred using machinery
It mixes device mixed at high speed 0.5-2 hours, then mixed liquor is carried out 1-3 hours using sonic oscillation separating apparatus, obtain finely dispersed
POSS solution.
(2) preparation of blend spinnings stoste.POSS solution is added in polyurethane urea solutions, in 40-60 degree constant temperature
Under the conditions of be stirred 24-48 hours, obtain spandex fiber stoste.
(3) preparation of paper diaper spandex.Spinning solution is delivered to spinneret component, then formed through spinneret orifice
Stoste thread；Stoste thread evaporates organic solvent by the spinning shaft of 240-260 degree again and becomes as-spun fibre；These nascent fibres
Dimension is drawn again through scroll tube afterturn obvolvent bunchy through conductive filament roller, by winder winding around obtaining paper diaper spandex.
Wherein：
Used POSS is the special POSS compounds containing fluorine element, and molecular structural formula is as follows,
Functional group representated by R can be-CH2CH2CF3、-CH2(CH2)3CF3、-CH2(CH2)5CF3、 -CH2(CH2)7CF3、-CH2(CH2)9CF3、-CH2CH2CH(CF3)2、-CH2CH2CH2OCH(CF3)2In one kind.
Used organic solvent is dimethylformamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), tetrahydrofuran, acetic acid first
One kind in ester, ethyl acetate.
The mass concentration of used POSS solution is 5~35%.
The viscosity of polyurethane urea solutions is 1000~3000 pools, and mass concentration is 30~40%.
The mass ratio of POSS and polyurethane-urea is 1：(9~99).
Used scroll tube is air scroll tube, and false twisting air ring length is controlled at 2~20 millimeters.
Used conductive filament roller number is 2, wherein the ratio between first roller rotating speed and second roller rotating speed are 1：1
~1：2.
Paper diaper are formed with spandex for 30~56 Single Fiber boundlings, and fiber number is 480~1680 denier.
Embodiment 1
Using band use-CH2CH2CF3The POSS compounds 1.5kg of functional group is added to together with 5.0kg dimethylacetylamides
It in retort, is first mixed 2 hours using mechanical agitator high-speed stirred, reuses sonic oscillation separating apparatus and 1 is carried out to mixed liquor
Hour is ultrasonically treated, and obtains a concentration of 20% POSS solution.POSS solution is added to a concentration of 35% polyurethane-urea it is molten
In liquid, the mass ratio of POSS and polyurethane-urea is 1/99.And be stirred under 45 degree of constant temperatures 28 hours, curing is completed
After obtain blend spinning stoste.Spinning solution is delivered to spinneret component, then forms stoste thread through spinneret orifice；Stoste is thin
Stream evaporates solvent by 260 degree of spinning shaft and becomes as-spun fibre；48 as-spun fibres are embraced by the afterturn of air scroll tube
Beam is synthesized, 1.2 times of drawing-offs effect is formed through conductive filament roller, finally by winder winding around obtaining 560 denier paper diaper spandex samples
1。
Embodiment 2
Using experimental method same as Example 1, the difference lies in the functional group of POSS institutes band is-CH2CH2 CH
(CF3)2, paper diaper obtained are denoted as sample 2 with spandex.
Embodiment 3
Using experimental method same as Example 1, the difference lies in the mass ratio of POSS and polyurethane-urea is 5/
95, paper diaper obtained are denoted as sample 3 with spandex.
Embodiment 4
Using experimental method same as Example 1, the difference lies in the mass ratio of POSS and polyurethane-urea is
10/90, paper diaper obtained are denoted as sample 4 with spandex.
Comparative example 1
Using experimental method same as Example 1, the difference lies in do not add POSS, paper diaper ammonia obtained
Synthetic fibre is denoted as comparative sample 1.
Embodiment sample and contrast sample are carried out to the test of fiber surface friction coefficient and unwinding, specific data
It is as shown in the table.What friction coefficient represented is the smooth degree of fiber surface, and friction coefficient is lower, the ability of silk thread Relative sliding
Stronger, unwinding process is more smooth；What unwinding tension represented is the interaction force between silk thread during unwinding, and force value is smaller,
Tractive force needed for unwinding is smaller, and unwinding is more easy.
Claims (10)
1. a kind of preparation method of paper diaper spandex, it is characterised in that it is poly- that this method includes following step：
1) preparation of polyhedral oligomeric silsesquioxanes POSS solution：It will be added in container together with POSS and organic solvent, first
It is handled using mechanical agitator mixed at high speed, then using sonic oscillation separating apparatus, obtains finely dispersed POSS solution；
2) preparation of blend spinnings stoste：Above-mentioned POSS solution is added in polyurethane urea solutions, in 40-60 DEG C of constant temperature item
It is stirred under part, obtains spandex fiber stoste；
3) preparation of paper diaper spandex：Above-mentioned spandex fiber stoste is delivered to spinneret component, then through spinneret orifice shape
Into stoste thread；Stoste thread evaporates organic solvent by 240-260 DEG C of spinning shaft again and becomes as-spun fibre；These are nascent
Fiber through scroll tube afterturn obvolvent bunchy, is drawn again through conductive filament roller, by winder winding around obtaining paper diaper spandex.
2. the preparation method of a kind of paper diaper spandex according to claim 1, it is characterised in that used POSS is
POSS compounds containing fluorine element, molecular structural formula is as follows,
Wherein, the functional group representated by R is-CH2CH2CF3、-CH2(CH2)3CF3、-CH2(CH2)5CF3、-CH2(CH2)7CF3、-CH2
(CH2)9CF3、-CH2CH2CH(CF3)2、-CH2CH2CH2OCH(CF3)2In one kind.
A kind of 3. preparation method of paper diaper spandex according to claim 1, it is characterised in that the organic solvent
For one kind in dimethylformamide, dimethylacetylamide, dimethyl sulfoxide (DMSO), tetrahydrofuran, methyl acetate or ethyl acetate.
4. the preparation method of a kind of paper diaper spandex according to claim 1, it is characterised in that the POSS solution
Mass concentration is 5~35%.
5. the preparation method of a kind of paper diaper spandex according to claim 1, it is characterised in that the polyurethane-urea is molten
The viscosity of liquid is 1000~3000 pools, and mass concentration is 30~40%.
6. the preparation method of a kind of paper diaper spandex according to claim 1, it is characterised in that the POSS and poly- ammonia
The mass ratio of ester urea is 1：(9~99).
7. the preparation method of a kind of paper diaper spandex according to claim 1, it is characterised in that the scroll tube is
Air scroll tube, false twisting air ring length are controlled at 2~20 millimeters.
A kind of 8. preparation method of paper diaper spandex according to claim 1, it is characterised in that the conductive filament roller
Number is 2, wherein the ratio between first roller rotating speed and second roller rotating speed are 1：1~1：2.
A kind of 9. preparation method of paper diaper spandex according to claim 1, it is characterised in that the paper diaper ammonia
Synthetic fibre is formed for 30~56 Single Fiber boundlings, and fiber number is 480~1680 denier.
A kind of 10. preparation method of paper diaper spandex according to claim 1, it is characterised in that the mechanical agitator
The time of mixed at high speed is 0.5-2 hours；The time that sonic oscillation separating apparatus is handled is 1-3 hours；In 40-60 DEG C of constant temperature
Under the conditions of time for being stirred be 24-48 hours.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518303A (en) * | 2018-11-27 | 2019-03-26 | 浙江华峰氨纶股份有限公司 | A kind of resistance to alkali cleaning high temperature resistant elastomer of core-skin type and preparation method thereof |
| CN110318106A (en) * | 2019-06-24 | 2019-10-11 | 郑州中远氨纶工程技术有限公司 | Thick denier spandex of a kind of high rebound and preparation method thereof |
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| 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 |
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| JP2005002489A (en) * | 2003-06-10 | 2005-01-06 | Toyobo Co Ltd | Polyurethane-based fiber, polyurethane-based fiber yarn, hybrid textured yarn and method for producing those |
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| CN109518303A (en) * | 2018-11-27 | 2019-03-26 | 浙江华峰氨纶股份有限公司 | A kind of resistance to alkali cleaning high temperature resistant elastomer of core-skin type and preparation method thereof |
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| CN110318106A (en) * | 2019-06-24 | 2019-10-11 | 郑州中远氨纶工程技术有限公司 | Thick denier spandex of a kind of high rebound and preparation method thereof |
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Address after: No. 1788, Dongshan Economic Development Zone, Ruian, Wenzhou, Zhejiang Patentee after: Huafeng Chemical Co.,Ltd. Address before: No. 1788, Dongshan Economic Development Zone, Ruian, Wenzhou, Zhejiang Patentee before: ZHEJIANG HUAFENG SPANDEX Co.,Ltd. |