CN101491685B - Water-absorbent material mainly used for diaper or pad and production method thereof - Google Patents
Water-absorbent material mainly used for diaper or pad and production method thereof Download PDFInfo
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- CN101491685B CN101491685B CN 200810059374 CN200810059374A CN101491685B CN 101491685 B CN101491685 B CN 101491685B CN 200810059374 CN200810059374 CN 200810059374 CN 200810059374 A CN200810059374 A CN 200810059374A CN 101491685 B CN101491685 B CN 101491685B
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Abstract
The invention provides a water absorbing material mainly used for napkin and diaper and a production method thereof. The water absorbing material mainly comprises the following compositions in portion by mass: 10 to 45 portions of water-absorption modified polyacrylonitrile fiber, and 55 to 90 portions of a bamboo carbon fiber. 1 to 35 portions of chitin antibacterial moisture-conductive acrylic fiber can be mixed into the compositions. The water absorbing material is processed into non-woven fabric by the water-absorption modified polyacrylonitrile fiber and the bamboo carbon fiber through mixing, opening, carding, spreading, needling, shaping and other steps, overcomes the deficiency of single fiber, has comprehensive performance higher than other materials mixed with other fibers and the water-absorption modified polyacrylonitrile fiber, is applicable to napkin and diaper, or other water absorbing living or medical products, and has the advantages of simple and practical process and low cost.
Description
Technical field
The present invention relates to use the textile material that suction modified acrylic fibre and bamboo carbon fiber are mixed, it is mainly used on the urinary incontinence care product, adult diaper for example, diaper for baby, diaper, the core absorbed layer of the products such as diaper also can be used in the occasion that other has hygroscopic capacity and repeats to wash requirement, such as clothes liner, shoe pad etc.
Background technology
Can wash the suction modified acrylic fibre, be take polyacrylonitrile fibre as raw material, and the fiber surface part makes through basic hydrolysis.The result of hydrolysis is that surface part becomes the crosslinked of the hydrophilic macromolecule that contains the carboxylic acid group, has water absorbing properties.Fiber core is the polyacrylonitrile fibre that does not change, and surface part is the material that is bordering on the powdery water-absorbing resin.When contacting with water, will suck a large amount of water in the molecular gap of the hydrophilic macromolecule group on formation top layer, expand in the fibre diameter direction.Like this so that fiber has larger water absorption and moisture-holding capacity, and can keep fiber condition.
For example (2.9dtex * 38mm) liquid absorption under the normal saline condition reaches 29-31ml/g to the suction modified acrylic fibre Lanseal that spins of Japanese Japan, and moisture-holding capacity is 11-12ml/g.The suction modified acrylic fibre of Tianjin University of Technology also can meet or exceed the level of Lanseal.
Characteristics: water absorption is large in neutral solution, but under acidity or alkali condition, liquid absorption descends.Under the pure water condition, water absorption is large.Under the normal saline condition, liquid absorption descends.In the organic solution, liquid absorption descends.
Shortcoming: after repeatedly using, the water absorbing properties slow decreasing; Because hydrophilic radical is combined with water firmly, the release of moisture is replied slowly, namely slow-drying; Fibre strength is poor after the moisture absorption, is the semigel shape, can't conformal after the fabric suction made from this fiber; Without antibiotic performance.
Bamboo carbon fiber, as raw material take Phyllostachys pubescens Mazei ex H.de Lebaie, through super-dry, carbonization, calcining, the techniques such as cooling, be prepared into bamboo charcoal, calcination process is under the high temperature more than 600 degree (even 1200 degree) and the anoxia oxygen supply of control (or have) environment, and calcination time is long, so that the micropore that bamboo charcoal innately has more refinement and honeycomb, and then make with the polyester modification section melt spinning with honeycomb microporous structure trend, moreover select the odd-shaped cross section spinneret at drawing process, finally make bamboo carbon fiber present following characteristics: fiber itself is special-shaped mesopore cross section structure; The honeycomb microporous structure that runs through inside and outside fiber itself is; Tiny bamboo charcoal particle itself has countless honeycomb micropores.This multi-cellular structure of bamboo carbon fiber so that fiber have very high water storage, lead wet ability.For example the liquid absorption of odd-shaped cross section bamboo carbon fiber can reach 12-14ml/g, and most hydrophilic fibre for example the liquid absorption of cotton, viscose glue, day silk, bamboo fibre generally at 7-12ml/g.In addition, no matter under weak acid or the weak basic condition, perhaps under the normal saline condition, perhaps under the micro-organic solution condition, under the pure water condition, the not obvious decline of bamboo charcoal fiber water-absorbing performance.This is that its micropore total amount is more because bamboo charcoal fiber water-absorbing is physics suction category purely, and suction, storage capacity are stronger, with liquid property relation little (unless this liquid and fiber generation chemical reaction).
The bamboo carbon fiber of above structure also possesses lot of advantages: superpower absorption and deodorization functions; Regulate humidity; Far infrared transmission keeps warm; Produce anion; Antibacterial, mildew-resistant; Quick-drying, ventilative; Washing stability.
Shortcoming: moisture-holding capacity is low, 3-4ml/g.For example be applied in the urine pants occasion, be through and always have certain extruding with it, the moisture of absorbed layer is out squeezed easily, wears uncomfortable.
Comprehensively above-mentioned, it is too low to use separately the fabric moisture-holding capacity that bamboo carbon fiber makes.Separately can to wash the fabric wet strength that the suction modified acrylic fibre makes too low in application, dryly recovers slow.Obviously, use separately this bi-material all can't be as the absorbed layer of urine pants, diaper etc.
Summary of the invention
Primary technical problem to be solved by this invention is to provide a kind of absorbent material that is mainly used in urine pants or diaper for above-mentioned prior art present situation, it combines the advantage of two kinds of fibers, overcome the deficiency of Single Fiber, the material that combination property is higher than other fibers and the modified acrylic fibre that absorbs water mixes extremely is adapted at urine pants, diaper or other is for using on the life that absorbs water or the medical product.
Another technical problem to be solved by this invention provides a kind of reasonable and practical process, improves the production method that is used for above-mentioned material of water absorbing properties.
The present invention solves the technical scheme that above-mentioned primary technical problem adopts: a kind of absorbent material that is mainly used in urine pants or diaper, it mainly includes suction modified acrylic fibre and bamboo carbon fiber, their ratios are that the suction modified acrylic fibre accounts for 10～45 parts, bamboo carbon fiber accounts for 55～90 parts, is mass fraction
Preferably, described suction modified acrylic fibre is take polyacrylonitrile fibre as raw material, and the polyacrylonitrile fibre surface part is through basic hydrolysis, surface part is become contain the crosslinked of carboxylic acid group's hydrophilic macromolecule, have water absorbing properties, this modified acrylic fibre water absorbing properties is better.
As improvement, described suction modified acrylic fibre and bamboo carbon fiber have also added anti-bacterial fibre such as chitin antibacterial is led wet acrylic fiber.This anti-bacterial fibre accounts for 1～35 umber, is mass fraction, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as the basis, with the broad spectrum antibacterial performance of reinforcing material.
As improvement, described bamboo carbon fiber is take Phyllostachys pubescens Mazei ex H.de Lebaie as raw material, adopted the method for calcinating of the above high temperature anoxia long delays of 600 degree, so that the micropore that bamboo charcoal innately has more refinement and honeycomb, and then made with the polyester modification section melt spinning with honeycomb microporous structure trend.Bamboo carbon fiber is the bamboo carbon fiber of odd-shaped cross section, to improve water absorbing properties.
At last, described suction modified acrylic fibre and bamboo carbon fiber are made non-woven fabrics by acupuncture.Or described suction modified acrylic fibre, bamboo carbon fiber and anti-bacterial fibre such as chitin antibacterial are led wet acrylic fiber and are made non-woven fabrics by acupuncture.So not only water absorbing properties is good, and technique is simple, and cost is low.
The present invention solves the technical scheme that above-mentioned another technical problem adopts: a kind of absorbent material production method for urine pants or diaper, it is characterized in that with suction modified acrylic fibre and bamboo carbon fiber through soaping, dry, the steps such as mixing, shredding, combing, lapping, acupuncture, typing, be processed into non-woven fabrics, wherein, their ratios are that the suction modified acrylic fibre accounts for 10～45 parts, bamboo carbon fiber accounts for 55～90 parts, is mass fraction.
As improvement, described suction modified acrylic fibre and bamboo carbon fiber sneak into anti-bacterial fibre by the combing step such as chitin antibacterial is led wet acrylic fiber.This anti-bacterial fibre accounts for 1～35 umber, is mass fraction, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as the basis.
In the time of necessary, before the combing step, increase is soaped, oven dry, some pollutions and the impurity of avoiding the front originally to bring.
Compared with prior art, the invention has the advantages that:
(1) kept the advantage of bamboo carbon fiber, for example certain bacteriostasis, and deodorization ability can keep warm after the solar radiation, etc.
(2) because the height of bamboo carbon fiber is led moistly, accelerated the absorption rate of water.Embody the index of urine pants quality except liquid absorption, another important indicator is absorption rate.Absorption rate is higher, and the urine pants inner surface is faster dry and comfortable.
(3) greatly shorten than pure suction modified acrylic fibre drying time, this advantage is that pure suction modified acrylic fibre is incomparable, the present invention attempts 70% bamboo carbon fiber and 30% non-woven fabrics that is mixed of suction modified acrylic fibre under normal temperature condition, be no more than 8 hours drying time, can substantially satisfy the dry in the sun requirement.Pure suction modified acrylic fibre normal temperature condition needs can't satisfy the dry in the sun requirement more than 24 hours lower drying time.
(4) liquid absorption is better than the material that other fibers and other fibers and suction modified acrylic fibre mix, take the result of test as example, the liquid absorption of 70% odd-shaped cross section bamboo carbon fiber/30% suction modified acrylic fibre needle punched non-woven fabrics can reach 18-21ml/g.This liquid absorption is much larger than the liquid absorption (being no more than 12ml/g) of hair, fiber crops, cotton, viscose glue, also greater than hair in proportion, fiber crops, cotton, the viscose glue liquid absorption with suction modified acrylic fibre mixed cloth, Japan 75% acrylic fiber that the provides/15% non-woven fabrics liquid absorption that modified acrylic fibre/10% polyster fibre is mixed that absorbs water is provided also only has 14-16ml/g.Its liquid absorption is near the liquid absorption of commercially available high-grade diaper in addition, and for example, the liquid absorption of the hydroscopic high-molecular resin of curious diaper and paper Time of Fluff Slurry composite material is namely about 22ml/g.
(6) moisture-holding capacity can reach the moisture-holding capacity of contained suction modified acrylic fibre and bamboo carbon fiber quality.The moisture-holding capacity of surveying 70% odd-shaped cross section bamboo carbon fiber/30% suction modified acrylic fibre needle punched non-woven fabrics can reach 6-7ml/g.
After (7) two kinds of fiber mixing to relapse liquid absorption stable.And pure suction modified acrylic fibre relapses the unstable or rate of water absorption of water absorption and slows down.Trace it to its cause, semigel shape fiber has hindered flowing of water, makes the part fiber can not fully touch water.And mixed uniformly bamboo carbon fiber and suction modified acrylic fibre non-woven fabrics, height is led wet bamboo carbon fiber water is reached rapidly non-woven fabrics everywhere, makes all suction modified acrylic fibres fully contact water, so it is stable to relapse water absorption.Because practical service environment, for example urine pants can constantly be squeezed, and can constantly occur so relapse phenomenon.
(8) repeatedly washing, water absorption descends slowly.Through 50 washings, survey 70% odd-shaped cross section bamboo carbon fiber/30% suction modified acrylic fibre needle punched non-woven fabrics and still can keep 70% liquid absorption.
From above overall characteristic as seen, to be applied to wash the product absorbed layers such as urine pants, diaper be very suitable to this water absorbing material.Can obtain following beneficial effect:
The use amount of whole world disposable urine trousers is very high.Take China as example, 0-3 year infant quantity about 4,851 ten thousand (end of the year 2005 statistics), city infant quantity is about 38%, supposes to only have 50% city infant day to use 3 diapers.The diaper that abandons every day also has 2,765 ten thousand approximately.In today of advocating environment protection, it obviously is out of season promoting disposable diaper again.But the existing liquid absorption of washing the urine pants absorbed layer is much lower than disposable urine trousers, urine occurs easily and returns and ooze phenomenon, and it is uncomfortable that the person of wearing quite feels.This has affected the popularization that can wash urine pants.
The present invention's composite target in known washed urine pants absorbed layer material comprises liquid absorption, and moisture-holding capacity is antibacterial etc., all is in a high position.Especially liquid absorption can be washed urine pants absorbed layer material above other, near the liquid absorption level of disposable urine trousers.Perhaps reach equal liquid absorption, absorbed layer can be done very thinly, makes the user comfortable and easy to wear, improves user's use interest.
Use the present invention in washing the urine pants absorbed layer, will make and to wash urine pants and on performance, with disposable urine trousers competition is arranged, add use cost far below disposable urine trousers, thereby change the use habit of consumer, the disposable urine trousers use amount is reduced greatly.This is significant for the environment of preserving our planet.
So this fabric can be mainly used on the urinary incontinence care product, adult diaper for example, diaper for baby, the core absorbed layer of the products such as diaper also can be used in the occasion that other has hygroscopic capacity and repeats to wash requirement, such as clothes liner, shoe pad etc.
Description of drawings
Fig. 1 is the schematic cross-section of a kind of pentagon mesopore cross section bamboo carbon fiber;
Fig. 2 is cellular multi-cellular structure bamboo carbon fiber
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Suction modified acrylic fibre use amount can be according to modified acrylic fibre and the actual water absorption of bamboo carbon fiber, final material water absorption, weight designing requirement or high or low.Suggestion suction modified acrylic fibre use amount is at 10-45%.Cross that low then the material water absorption is inadequate, the absorbed layer of the thickened product of having to makes the user wear discomfort; Excessive use suction modified acrylic fibre will cause product drying slow, and the user uses inconvenience.Corresponding bamboo carbon fiber use amount is at 90-55%, and for well, aforesaid percentage ratio is mass percent with the bamboo carbon fiber that uses special-shaped mesopore cross section.
According to actual needs, can also add a small amount of other fibers.It for example is the broad spectrum antibacterial performance of reinforcing material, adding silver is anti-bacterial fibre or organic compound anti-bacterial fibre, and these fiber water absorbing capacities are not strong, and the suggestion adding proportion is no more than 5%, be mass percent, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as benchmark; For reducing the cost, add the viscose glue fibrid of good hygroscopicity, tencel for example, modal etc., adding proportion is advisable to be no more than 35%, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as benchmark; Can also add the fiber that has simultaneously the broad-spectrum antiseptic ability and lead the wet water absorbent ability, pure chitin fiber is good a selection, broad-spectrum antiseptic ability and best to the affinity of human body skin, but its cost is too expensive, add such as true the need, its ratio can not surpass 10%, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as benchmark; Preferred plan is to add the chitin antibacterial have the broad-spectrum antiseptic ability and to lead the wet water absorbent ability to lead wet acrylic fiber, and its adding proportion can not surpass 35%, be mass percent, take the gross weight of suction modified acrylic fibre and bamboo carbon fiber as benchmark.
To be processed into needle punched non-woven fabrics more knitting than being processed into, shuttle-woven fabric good.The latter process is complicated, and cost is high.In the various non-woven fabrics, best with the needle punched non-woven fabrics water absorption.Spun-laced nonwoven fabric is too fine and close, and water absorption is not as eedle-punched non-wovens.
The length of fiber generally at 38-51mm for well.This mainly is should be because of the requirement of domestic most needle punched non-woven fabrics process equipments.Abnormity mesopore cross section bamboo carbon fiber needs customization.The companies such as Yizheng Fiber Optical plant company, Taiwan hundred and industrial group company, sky company of eastern Huahai possess the ability of producing this bamboo carbon fiber.Cut-off the present patent application is during day, and domestic suction modified acrylic fibre does not still have industrialized great production.Company is spun by Japan Japan can provide the suction modified acrylic fibre.The suction modified acrylic fibre production application work of throwing oneself into of Some Domestic universities and colleges and scientific research institutions.
Fiber is through soaping, and oven dry mixes, shredding, and combing, lapping, acupuncture, typing is processed to non-woven fabrics.In the course of processing, must keep environmental drying.The carding process of fiber is extremely important, must guarantee that fiber opened by abundant combing.The suction modified acrylic fibre is not opened by combing, can reduce the water absorbing properties of material.
Examples of implementation 1
Suction modified acrylic fibre 10%, bamboo carbon fiber 90%, other is above reference.
Examples of implementation 2
Suction modified acrylic fibre 45%, bamboo carbon fiber 55%, other is above reference.
Examples of implementation 3
Suction modified acrylic fibre 30%, bamboo carbon fiber 70%, other is above reference.
Examples of implementation 4
Suction modified acrylic fibre 45%, bamboo carbon fiber 55%, chitin antibacterial are led wet acrylic fiber 35% (relative mass percentage ratio is take absorb water modified acrylic fibre and bamboo carbon fiber gross weight as the basis), and other is above reference.
Examples of implementation 5
Suction modified acrylic fibre 45%, bamboo carbon fiber 50%, chitin antibacterial are led wet acrylic fiber 5% (relative mass percentage ratio is take absorb water modified acrylic fibre and bamboo carbon fiber gross weight as the basis), and other is above reference.
Claims (10)
1. absorbent material that is used for urine pants or diaper, it includes suction modified acrylic fibre and bamboo carbon fiber, and their ratios are that the suction modified acrylic fibre accounts for 10～45 parts, and bamboo carbon fiber accounts for 55～90 parts, is mass fraction.
2. absorbent material according to claim 1, it is characterized in that described suction modified acrylic fibre is as raw material take polyacrylonitrile fibre, the polyacrylonitrile fibre surface part is through basic hydrolysis, surface part is become contain the crosslinked of carboxylic acid group's hydrophilic macromolecule, have water absorbing properties.
3. absorbent material according to claim 1 and 2 is characterized in that also having added anti-bacterial fibre in described suction modified acrylic fibre and the bamboo carbon fiber, and anti-bacterial fibre accounts for 1～35 part, is mass fraction.
4. absorbent material according to claim 1 and 2 is characterized in that described suction modified acrylic fibre and bamboo carbon fiber make non-woven fabrics by acupuncture.
5. absorbent material according to claim 3 is characterized in that described anti-bacterial fibre is that chitin antibacterial is led wet acrylic fiber.
6. absorbent material according to claim 5 is characterized in that described suction modified acrylic fibre, bamboo carbon fiber and chitin antibacterial lead wet acrylic fiber and make non-woven fabrics by acupuncture.
7. absorbent material according to claim 1, it is characterized in that described bamboo carbon fiber is take Phyllostachys pubescens Mazei ex H.de Lebaie as raw material, adopted the method for calcinating of the above high temperature anoxia long delays of 600 degree, so that the micropore that bamboo charcoal innately has more refinement and honeycomb, and then make with the polyester modification section melt spinning with honeycomb microporous structure trend.
8. absorbent material according to claim 7 is characterized in that described bamboo carbon fiber is the bamboo carbon fiber in special-shaped mesopore cross section.
9. absorbent material production method that is used for urine pants or diaper, it is characterized in that suction modified acrylic fibre and bamboo carbon fiber are passed through mixing, shredding, combing, lapping, acupuncture, fixating shape step, be processed into non-woven fabrics, wherein, suction modified acrylic fibre and bamboo carbon fiber, their ratios are that the suction modified acrylic fibre accounts for 10～45 parts, and bamboo carbon fiber accounts for 55～90 parts, is mass fraction.
10. absorbent material production method according to claim 9 has also been added anti-bacterial fibre in it is characterized in that absorbing water modified acrylic fibre and the bamboo carbon fiber, and anti-bacterial fibre accounts for 1～35 part, is mass fraction.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773303A (en) * | 2010-01-11 | 2010-07-14 | 杭州杭友防护用品有限公司 | Bamboo carbon fiber protective clothing |
| CN102677394B (en) * | 2011-03-14 | 2015-08-12 | 武汉纺织大学 | A kind of multi-component antibacterial non-woven fabric |
| CN102505338A (en) * | 2011-09-29 | 2012-06-20 | 黄显飚 | Dampness and odor removal cellucotton and preparation process thereof |
| CN102653900A (en) * | 2012-04-17 | 2012-09-05 | 山东俊富非织造材料有限公司 | Non-woven material for liquid management systems and preparation method of non-woven material |
| CN102631698A (en) * | 2012-04-28 | 2012-08-15 | 厦门银华祥环保科技有限公司 | Superabsorbent antimicrobial nonwoven fabric and antimicrobial dressing, and preparation methods and uses thereof |
| CN104164754A (en) * | 2014-07-30 | 2014-11-26 | 上海圣得生物工程技术有限公司 | Chitin non-woven fabric and application thereof |
| CN106267303B (en) * | 2015-05-12 | 2019-10-22 | 3M创新有限公司 | Hygroscopic piece, Humidity absorption bag, and its preparation method and application |
| CN104911810A (en) * | 2015-05-20 | 2015-09-16 | 晋江市百荣鞋材贸易有限公司 | Moisture absorption, moisture releasing and deodorization non-woven fabric |
| CN106012098B (en) * | 2016-06-28 | 2018-04-20 | 深圳市影儿服饰有限公司 | A kind of preparation method of high-hydroscopicity anti-bacterial acrylon fiber |
| CN107372778A (en) * | 2017-08-14 | 2017-11-24 | 内蒙古农业大学 | A kind of antibacterial pad fresh-keeping for cold fresh meat and preparation method thereof |
| CN108498845B (en) * | 2018-04-28 | 2020-12-15 | 青岛艾暖医疗科技有限公司 | High-comfort pain-relieving chitin sanitary pad and manufacturing method thereof |
| CN111155238A (en) * | 2019-07-17 | 2020-05-15 | 佛山市裕丰无纺布有限公司 | Manufacturing process of weak-acid non-woven fabric by spun-bonding method |
| CN111041714A (en) * | 2019-12-28 | 2020-04-21 | 苏州椰为媒纤维制品科技有限公司 | Antibacterial hot melt cotton |
| CN111877001A (en) * | 2020-08-17 | 2020-11-03 | 黄俊龙 | High-strength antibacterial non-woven fabric and preparation method thereof |
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| CN2792456Y (en) * | 2005-01-27 | 2006-07-05 | 林昌 | Health-care sanitary napkins |
| CN200966685Y (en) * | 2006-11-09 | 2007-10-31 | 何柏军 | Urine-absorbing paper shorts |
| CN101070634A (en) * | 2007-06-12 | 2007-11-14 | 天津工业大学 | Method for preparing hydrophilic polymerized acrylonitrile fiber |
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- 2008-01-25 CN CN 200810059374 patent/CN101491685B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2792456Y (en) * | 2005-01-27 | 2006-07-05 | 林昌 | Health-care sanitary napkins |
| CN200966685Y (en) * | 2006-11-09 | 2007-10-31 | 何柏军 | Urine-absorbing paper shorts |
| CN101070634A (en) * | 2007-06-12 | 2007-11-14 | 天津工业大学 | Method for preparing hydrophilic polymerized acrylonitrile fiber |
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