CN102653900A - Non-woven material for liquid management systems and preparation method of non-woven material - Google Patents
Non-woven material for liquid management systems and preparation method of non-woven material Download PDFInfo
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- CN102653900A CN102653900A CN2012101129171A CN201210112917A CN102653900A CN 102653900 A CN102653900 A CN 102653900A CN 2012101129171 A CN2012101129171 A CN 2012101129171A CN 201210112917 A CN201210112917 A CN 201210112917A CN 102653900 A CN102653900 A CN 102653900A
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Abstract
The application discloses a non-woven material for liquid management systems, as well as a preparation method and an application of the non-woven material in disposable personal nursing sanitary products, including paper diaper and sanitary napkin. The non-woven material for the liquid management systems is a needled non-woven fabric manufactured by using a needling method. According to the application, the needled non-woven fabric is used in liquid management systems of personal nursing sanitary products; and compared with the existing material for liquid management systems of personal nursing sanitary products, the non-woven material for the liquid management systems can be penetrated within 2 seconds in the first three times, the back seepage is less than 0.1g, and the slip seepage value is 0g; however the existing ordinary material takes 3-4 seconds for the first three seepages, the back seepage is about 2g, and the slip seepage value is 0.4g, so that the material provided by the application has the advantages of good hydrophilic effect and good permeability.
Description
Technical field
The present invention relates to the personal nursing hygiene article sector, particularly relate to the nonwoven material and the preparation thereof that are used for liquid management system in a kind of personal nursing amenities.
Background technology
At present, very big in disposable personal care sales volume of the product such as sanltary towel, baby paper diaper, adult diapers, and also growth rate is very fast, is example with China, and annual growth has driven the development of non-woven industry greatly more than 30%.The nonwoven fabric that is applied to urinate trousers is generally spun-bonded non-woven fabrics, SMS nonwoven fabric, hot-wind nonwoven cloth, fabric hot rolled nonwoven fabrics and spunlace non-woven cloth, and application site mainly contains the surface layer, water conservancy diversion layer, leakproof edge, sandwich layer, counterdie of urine trousers etc.Wherein the clad effect of surface layer, water conservancy diversion layer, sandwich layer is extremely important, need liquid management effects such as hydrophilic rapidly, water conservancy diversion, diffusion, prevention reverse osmosis be arranged to liquid, so also most important to the research of these materials.Adopting at present more is fabric hot rolled nonwoven fabrics, hot-wind nonwoven cloth and spun-bonded non-woven fabrics, but these materials are when being used for the water conservancy diversion layer, and the effect of hydrophilic, water conservancy diversion, diffusion, prevention reverse osmosis is general, just general to the liquid management effect, and cost is higher.
Application number is " contain the non-weaving cloth and preparation method thereof of polyester complex fiber and as the application of hydroscopic substance flow guiding layer " in the patent of " 200910114894.6 "; Disclose a kind of " the two component composite nonwoven materials of polyethylene/polyester; " and be used for the water conservancy diversion layer with the two component composite nonwoven materials of polyethylene/polypropylene; Bicomponent fibers is a skin-core structure, forms through heat bonding is fixed at last.Application number is " composite flowing layer material and preparation method thereof " in the patent of " 200910049498.X "; A kind of composite flowing layer material is disclosed; This water conservancy diversion layer is to be made up of materials at two layers; Material is made up of polyethylene, polypropylene, any one pair of polyester component fibre web, and it is that 38-60mm, fibre fineness are 5-10 DENIER (being called for short the dawn) process hydrophilic treated or do not pass through the made fiber web of core-skin type bicomponent fibers of hydrophilic treated that top fiber adopts length, and it also is 38-60mm that lower floor adopts length; Fineness forms through the hot melt composite consolidation for the made fiber web of core-skin bicomponent fibers of 1.2-3 dawn through hydrophilic treated.More than two kinds of disclosed flowing layer materials of patent, all be the bicomponent fibers nonwoven fabric, cost is high, and general through material water conservancy diversion effect, diffusion effect, the prevention reverse osmosis effect of heat bonding or hot melt composite consolidation.
At present, needle punched non-woven fabrics is mainly used in agricultural foison cloth, booth cloth, packing sheet, clothes shoemaking substrate, automotive sound-proof felt, family expenses sofa lining, carpet and military field or the like.Topmost application is still in fields such as industry filtration, auto industry filtration, geotextiles.For example " environment-friendly type needle punched non-woven fabrics " patent No. " 03131716.2 " discloses a kind of terylene short fiber and polypropylene fibre blend, is consolidated into cloth through acupuncture, is mainly used in mattress, shoe-pad.
Summary of the invention
The application's purpose provides the nonwoven material that is used for liquid management system in a kind of personal nursing amenities, and this nonwoven material is different with existing personal nursing amenities nonwoven material, has good hydrophilicity and gas permeability.
To achieve these goals, the application has adopted following technical scheme:
The application discloses a kind of nonwoven material that is used for liquid management system, and this nonwoven material is for adopting the needle punched non-woven fabrics of needle point method preparation.
In the application's the embodiment, the raw material of this nonwoven material comprises one or both in polyester, the polypropylene.
Further, the raw material of this nonwoven material comprises polyester and polypropylene, and both mass ratioes are polyester: polypropylene=99%-1%: 1%-99%; Preferably, both mass ratioes are polyester: polypropylene=70%: 30%.
Further, the polyester in the raw material is a returnable bottle material polyester.
Further, polyester, polyacrylic fibre diameter are the 1-20 dawn; Fibre length is 10-100mm.
Preferably, the fibre diameter of polyester is 2 DENIERs, and polyacrylic fibre diameter is 6 DENIERs.
The application preferred embodiment in, adopt the polyester at 2 dawn and the polypropylene blending at 6 dawn, both mass ratioes are polyester: polypropylene=99%-1%: 1%-99%, are preferably 70%: 30%.
Disclosed herein as well is the application of the nonwoven material that is used for liquid management system that the application provides at the disposable personal care amenities.
Concrete, this application is included in the application in baby paper diaper, adult diaper, sanitary napkin etc.
Disclosed herein as well is the method for the nonwoven material that is used for liquid management system that provides of preparation the application; This preparation method comprises successively; Raw material metal detection and eliminating, hydrophilic treated, the shredding that feeds intake, carding, 5-7 layer fleece-laying, 3-4 times drawing-off, and pre-needling and main acupuncture are consolidated into cloth.Need to prove that wherein hydrophilic treated is the infusion process hydrophilic treated.
Further, pre-needling is that 8000-10000 props up/rice, stings pin density 80-100c/cm in advance
2Main acupuncture is that 13000-15000 props up/rice, main thorn pin density 120-150c/cm
2
Because adopt above technical scheme, beneficial effect of the present invention is:
The present inventor creatively is applied to the nonwoven material of needle point method preparation in the liquid management system of personal nursing amenities.Experimental result shows, the nonwoven material that is used for liquid management system that the application provides, and first three time of liquid penetrated in 2 seconds, bled back below 0.1g, and sliding leakage value is 0, has remarkable hydrophilic effect; Simultaneously; Owing to adopt needling process, do not influence the original characteristic of fiber behind the fibrous raw material mechanical interlocking, between the fiber flexible the entanglement; Have DIMENSIONAL STABILITY and elasticity preferably, make the application's the nonwoven material that is used for liquid management system have good permeability and filterability.In addition, the application's the nonwoven material that is used for liquid management system does not need chemical adhesive, has avoided the influence to nonwoven material that therefore causes fully, makes the skin of contact more comfortable.
Description of drawings
Fig. 1 is a needling process principle schematic among the application embodiment;
Fig. 2 is the different big fine pore that is used for the needle punched non-woven fabrics of liquid management system among the application embodiment;
Among Fig. 11 be fibre web, 2 for feed to give curtain, 3 for the holder web plate, 4 for the stripping web plate, 5 for main transmission, 6 for needle beam, 7 for needle plate, 8 for pricker, 9 be outlet roller.
The specific embodiment
In this example, the inventor creatively is applied to the needle punched non-woven fabrics of needle point method preparation the liquid management system of personal nursing amenities through lot of experiments; Thereby proposed a kind of nonwoven material that is used for liquid management system, preferably be used to urinate the water conservancy diversion layer (Acquisition Distribution Layer) of trousers.The nonwoven material that is used for liquid management system in this example, preparation technology's flow process comprise, the inspection of raw and process materials → shredding that feeds intake → fiber carding → fiber web cross lapping → drawing-off → pre-needling → main acupuncture → rolling → check.
Wherein raw material comprise one or both in polyester, the polypropylene, and fibre diameter is that 1-20 DENIER, length are 10mm-100mm; The polyester at preferred 2 dawn of employing and the polypropylene blending at 6 dawn, both ratios are preferably 70%: 30%.Preferably, 5 layers to 7 layers of staple fibre lappings, 3-4 times of drawing-off, pre-needling 8000-10000 props up/rice, in advance the close 80-100c/cm of pricker
2, main acupuncture 13000-15000 props up/rice, main thorn 120-150c/cm
2
The nonwoven material that is used for liquid management system for preparing in this example has the following advantages:
(1) hydrophilicity is outstanding: the nonwoven material that preparation is used for liquid management system has certain stereochemical structure on thickness direction, and hydrophilic effect is remarkable; Experimental result shows that first three time penetrated in 2 seconds, and bleed back general material require 3-4 second below 0.1g, and general material is about 2g, and sliding leakage value is 0g, and general material is about 0.4g; It is thus clear that the nonwoven material liquid penetration performance that is used for liquid management system of this example preparation is good, prevent that bleeding back performance is far superior to the existing material that is used for liquid management system, and, almost sliding the leakage;
(2) structure is excellent: adopt needling process; Do not influence the original characteristic of fiber behind the mechanical interlocking; Between the fiber flexible the entanglement; Have DIMENSIONAL STABILITY and elasticity preferably, make the nonwoven material of preparation have good permeability and strainability, can be good at satisfying the needs of liquid management system in the personal nursing amenities; When particularly adopting polyester and the polypropylene acupuncture blending at 6 dawn at 2 dawn, because fibre diameter differs bigger, can form the distribution of pores of two kinds of sizes, as shown in Figure 2, this hole is to the hydrophilic effect highly significant of material, and makes gas permeability better;
(3) cost is lower: the needling process flow process is simple, equipment investment is lower, and energy consumption is less, and material cost is lower;
(4) safer: as owing to adopt the acupuncture of physics fixed, not need adhesive, do not have chemical adhesive, make that the preparation of nonwoven fabric and use are all safer; And, adopt polyester PET, polypropylene PP fiber mixing, make skin more comfortable.
Below through specific embodiment and combine accompanying drawing that the present invention is done further explain.Following examples are only further explained the present invention, should not be construed as limitation of the present invention.
Embodiment one
Adopt the polyester PET staple fibre, PET fibre diameter 2D, fibre length 30-40mm is through the dipping hydrophilic treated → ingredient inspection → shredding that feeds intake → fiber carding → fiber web cross lapping → drawing-off → pre-needling → main acupuncture → rolling → check.Wherein, the hydrophilic fibers raw material forms fluffy fiber group and is delivered to carding machine after removing through opener shredding, mixing and metal; Carding machine is carded to uniform filament web with fibrous mass; Behind the single layer fibre net process cross lapping machine cross lapping, form and satisfy the fabric width of technique initialization and the multi-layered web of grammes per square metre, multi-layered web improves fibroreticulate in length and breadth to brute force through roller draft; Fiber web through improving is admitted to pre-needling machine and main needing machine successively; The needing machine utilization has the cross section of triangle or other shapes, and on seamed edge, has the thorn that stings hook and puncture repeatedly to fiber web, fiber web through the acupuncture district after; Tangle each other between the fiber, the grey cloth of formation possesses certain brute force, density and thickness.Final finished thickness is at 1.27mm, and grammes per square metre is at 57.2g/m
2, MD direction ultimate strength 107.7N/5cm, CD direction ultimate strength 86.2N/5cm, the MD direction is torn powerful 47.6N, and the CD direction is torn powerful 55.9N; With EDANA method test hydrophilicity, time of break-through is 1.58 seconds for the first time, and time of break-through is 1.85 seconds for the second time, and time of break-through is 1.85 seconds for the third time, bleeds back 0.07g, and sliding the leakage is 0g.Wherein bleed back to detect and add ballast 4kg, be respectively 3 minutes the exerting pressure the time of fluid balance time and 2 minutes pressing time; The angle that sliding omission is surveyed is 25 degree, amount of liquid 25ml.
Embodiment two
Adopt 70% polyester PET staple fibre and 30% polypropylene PP staple fibre, PET fibre diameter 2D, PP fibre diameter 6D; Fibre length 30-40mm is through dipping hydrophilic treated → ingredient inspection → mixed material feeding shredding → fiber carding → fiber web cross lapping → drawing-off → pre-needling → main acupuncture → rolling → check, wherein; After the hydrophilic fibers raw material is removed through the shredding of opening or cleaning machine, mixing and metal; Form fluffy fiber group and be delivered to carding machine, carding machine is carded to uniform filament web with fibrous mass, behind the single layer fibre net process cross lapping machine cross lapping; The fabric width of technique initialization and the multi-layered web of grammes per square metre are satisfied in formation; Multi-layered web improves fibroreticulate in length and breadth to brute force through roller draft, be admitted to pre-needling machine and main needing machine successively through the fiber web that improves, and the needing machine utilization has the cross section of triangle or other shapes; And on seamed edge, having the thorn that stings hook punctures to fiber web repeatedly; Fiber web through the acupuncture district after, tangle each other between the fiber, the grey cloth of formation possesses certain brute force, density and thickness.Final finished thickness is at 1.71mm, and grammes per square metre is at 100.3g/m
2, MD direction ultimate strength 283.9N/5cm, CD direction ultimate strength 238.8N/5cm, the MD direction is torn powerful 117.7N, and the CD direction is torn powerful 123.8N; With EDANA method test hydrophilicity, time of break-through is 1.51 seconds for the first time, and time of break-through is 1.92 seconds for the second time, and time of break-through is 1.75 seconds for the third time, bleeds back 0.09g, and sliding the leakage is 0g.Wherein bleed back to detect and add ballast 4kg, be respectively 3 minutes the exerting pressure the time of fluid balance time and 2 minutes pressing time; The angle that sliding omission is surveyed is 25 degree, amount of liquid 25ml.
Embodiment three
Adopt 100% polypropylene PP staple fibre, polypropylene PP fibre diameter 6D, fibre length 40-50mm; Through the dipping hydrophilic treated → ingredient inspection → shredding that feeds intake → fiber carding → fiber web cross lapping → drawing-off → pre-needling → main acupuncture → rolling → check, wherein, after the hydrophilic fibers raw material is removed through the shredding of opening or cleaning machine, mixing and metal; Form fluffy fiber group and be delivered to carding machine, carding machine is carded to uniform filament web with fibrous mass, behind the single layer fibre net process cross lapping machine cross lapping; The fabric width of technique initialization and the multi-layered web of grammes per square metre are satisfied in formation; Multi-layered web improves fibroreticulate in length and breadth to brute force through roller draft, be admitted to pre-needling machine and main needing machine successively through the fiber web that improves, and the needing machine utilization has the cross section of triangle or other shapes; And on seamed edge, having the thorn that stings hook punctures to fiber web repeatedly; Fiber web through the acupuncture district after, tangle each other between the fiber, the grey cloth of formation possesses certain brute force, density and thickness.Final finished thickness is at 1.39mm, and grammes per square metre is at 81.0g/m
2, MD direction ultimate strength 375.9N/5cm, CD direction ultimate strength 348.4N/5cm, the MD direction is torn powerful 175.3N, and the CD direction is torn powerful 158.3N; With EDANA method test hydrophilicity, time of break-through is 1.73 seconds for the first time, and time of break-through is 1.77 seconds for the second time, and time of break-through is 1.94 seconds for the third time, bleeds back 0.07g, and sliding the leakage is 0g.Wherein bleed back to detect and add ballast 4kg, be respectively 3 minutes the exerting pressure the time of fluid balance time and 2 minutes pressing time; The angle that sliding omission is surveyed is 25 degree, amount of liquid 25ml.
In addition, the inventor has prepared nonwoven material according to the method for embodiment 1-3 according to the proportioning raw materials of table 1, and percentage elongation during to its ultimate strength, elongation at break, 45N, tears brute force etc. and test, and the result sees table 1; Wherein, MD representes that vertically CD representes laterally.The result shows, the anti-fracture of the nonwoven material of preparation, tear resistance are qualified, can satisfy concrete instructions for use.Simultaneously, the inventor has also optionally carried out detections such as first three time penetrates, bleeds back, sliding leakages to part wherein, concrete, has respectively extracted 5 samples 10 and tests with rolling up from rolling up 2, and the result sees table 2; Wherein 1st ST, 2st ST, 3st ST represent respectively to penetrate for three times, and used chronomere is second, and RE WET representes to bleed back test, and unit is gram, and RO OFF representes sliding test leakage examination, and unit is gram.The result shows that first three time of the nonwoven material of preparation time of break-through all in 2 seconds, bleeds back less than 0.1g, and sliding the leakage is 0; Hydrophilic effect is good, have good permeability and filterability.
Table 1 strength test that ruptures/tear
Table 2 penetrates, bleeds back, slides omission and surveys
Above content is to combine concrete embodiment to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a nonwoven material that is used for liquid management system is characterized in that: the said needle punched non-woven fabrics of nonwoven material for adopting needle point method to prepare that is used for liquid management system.
2. the nonwoven material that is used for liquid management system according to claim 1 is characterized in that: the raw material of said nonwoven material comprises one or both in polyester, the polypropylene.
3. the nonwoven material that is used for liquid management system according to claim 2 is characterized in that: the raw material of said nonwoven material comprises polyester and polypropylene, and both mass ratioes are polyester: polypropylene=99%-1%: 1%-99%.
4. the nonwoven material that is used for liquid management system according to claim 2 is characterized in that: the raw material of said nonwoven material comprises polyester and polypropylene, and both mass ratioes are polyester: polypropylene=70%: 30%.
5. according to each described nonwoven material that is used for liquid management system of claim 2-4, it is characterized in that: said polyester, polyacrylic fibre diameter are the 1-20 DENIER; Said polyester, polyacrylic fibre length are 10-100mm.
6. the nonwoven material that is used for liquid management system according to claim 5 is characterized in that: the fibre diameter of said polyester is 2 DENIERs, and said polyacrylic fibre diameter is 6 DENIERs.
7. according to each described application that is used for the nonwoven material of liquid management system at the disposable personal care amenities of claim 1-6.
8. the application in the disposable personal care amenities according to claim 7 is included in the application in paper diaper, the sanitary napkin.
9. according to each described preparation method who is used for the nonwoven material of liquid management system of claim 1-6; It is characterized in that: said preparation method comprises; Raw material metal detection and eliminating, hydrophilic treated, the shredding that feeds intake, carding, 5-7 layer fleece-laying, 3-4 times drawing-off, and pre-needling and main acupuncture are consolidated into cloth.
10. preparation method according to claim 9 is characterized in that: said pre-needling is that 8000-10000 props up/rice, stings pin density 80-100c/cm in advance
2Said main acupuncture is that 13000-15000 props up/rice, main thorn pin density 120-150c/cm
2
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| CN108385272A (en) * | 2018-01-30 | 2018-08-10 | 河南工程学院 | A kind of high intensity plant growing protection slope geotextiles of sandwich structure and preparation method thereof |
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Application publication date: 20120905 |