CN105780301A - Strong-hydrophilic composite double-layer through-air thermal-bonded nonwoven and preparation method thereof - Google Patents
Strong-hydrophilic composite double-layer through-air thermal-bonded nonwoven and preparation method thereof Download PDFInfo
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- CN105780301A CN105780301A CN201610188683.7A CN201610188683A CN105780301A CN 105780301 A CN105780301 A CN 105780301A CN 201610188683 A CN201610188683 A CN 201610188683A CN 105780301 A CN105780301 A CN 105780301A
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- air thermal
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses strong-hydrophilic composite double-layer through-air thermal-bonded nonwoven and a preparation method thereof. The through-air thermal-bonded nonwoven comprises two layers of structures including an upper human body contact layer and a lower supporting layer, wherein the upper human body contact layer is prepared from low-fineness two-component strong-hydrophilic staple fibers, and the lower supporting layer is prepared from high-fineness two-component strong-hydrophilic staple fibers; both the low-fineness two-component strong-hydrophilic staple fibers and the high-fineness two-component strong-hydrophilic staple fibers adopt double-layer structures comprising skin layers and core layers, the skin layers are prepared from polyethylene, and the core layers are prepared from polyester; the fineness of the low-fineness two-component strong-hydrophilic staple fibers is in a range of 1.7-2.2 Dtex; the fineness of the high-fineness two-component strong-hydrophilic staple fibers is in a range of 2.7-4.4 Dtex. Through the scheme, the product is good in hydrophilic performance and large in thickness and has certain rebound resilience, the penetration moisture regaining time is still shorter than 3 s after five times of penetration moisture regaining performance tests, and the nonwoven is 50% or more thicker than common through-air thermal-bonded nonwoven.
Description
Technical field
The present invention relates to field of textiles, be specifically related to a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens and preparation method thereof.
Background technology
Through-Air Thermal Bonded Nonwovens is the one in thermal bonding technology, use parallel construction or the bicomponent fibre of skin-core structure, after carding, by hot air composite fibre, after PE in composite fibre is melted, fiber is mutually lapped, and becomes the non-weaving cloth having certain strength and extension property through supercooling.Owing to being not affected by pressurization in the course of processing, the non-weaving cloth that the elasticity of Through-Air Thermal Bonded Nonwovens and bulkiness make far better than other techniques.Through-Air Thermal Bonded Nonwovens is due to soft, fluffy, user can be made to feel comfortably cool, and be widely used in Personal hygiene nursing materials, it is particularly applied in feminine hygiene and baby diaper, being typically used in top layer or two layers, it can absorb rapidly body fluid (liquid, urine are discharged in menstruation), and it imports the absorptive core of its lower floor as homogeneously as possible, the most both maintain skin dry and comfortable, prevent again the lateral leakage of body fluid.
At present, worldwide hot blast nonwovens process based on the most hydrophilic or the most hydrophilic hot blast cloth, material through more than three times liquid penetrate the wettest after, owing to fibre finishing is taken away by liquid major part, penetration performance will be deteriorated, and situation about oozing even can occur any more.But for sanitary towel, urine pants designer for, penetrate anti-wet test for more than three times through liquid, moreover it is possible to ensure that the good anti-wet performance that penetrates receives publicity and favors.Prior art utilizes single combing make Through-Air Thermal Bonded Nonwovens material through more than three times liquid penetrate the wettest after, owing to fibre finishing is taken away by liquid major part, penetration performance will be deteriorated, and situation about oozing even can occur any more.
Composite double layer Through-Air Thermal Bonded Nonwovens is a special category of hot blast nonwovens process, it uses the feature of equipment, Through-Air Thermal Bonded Nonwovens is made to be composited by double-layer structure, thus improve thickness and the elasticity of non-weaving cloth, reach the requirement of Personal hygiene nursing materials designer, also the user making health product feels more comfortable, the moistest.
Summary of the invention
The main object of the present invention is for the deficiency of Through-Air Thermal Bonded Nonwovens in above-mentioned prior art, on the basis of composite double layer Nonwovens In Technology, use the strong hydrophilicity fiber processed through strong hydrophilicity oil preparation, produce a kind of strong hydrophilicity, high resiliency, high fluffy hot blast composite double layer non-weaving cloth.
For achieving the above object, technical scheme disclosed by the invention is: a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, and described Through-Air Thermal Bonded Nonwovens includes double-layer structure: upper strata body contacting layer and lower support layer；Described upper strata body contacting layer uses low fineness double-component strong hydrophilicity chopped fiber to make, and described lower support layer uses high fineness double-component strong hydrophilicity chopped fiber to make；Described low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber are all to include the double-decker of cortex and sandwich layer, and described cortex is that polythene material is made, and described sandwich layer is that polyester material is made；The fineness of described low fineness double-component strong hydrophilicity chopped fiber is between 1.7-2.2Dtex；The fineness of described high fineness double-component strong hydrophilicity chopped fiber is between 2.7-4.4Dtex.
Preferably, the length of described low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber is all between 38-51mm.
Preferably, the grammes per square metre scope of described Through-Air Thermal Bonded Nonwovens is 18 ~ 30g/m2。
Preferably, described Through-Air Thermal Bonded Nonwovens surface is provided with groove and embossing.
Preferably, the thickness of described Through-Air Thermal Bonded Nonwovens is between 0.2-3.0mm.
The invention also discloses the preparation method of a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, described preparation method includes operating as follows: through the first comb unit, low fineness double-component strong hydrophilicity chopped fiber is carried out combing, is carded to the first fleece；High fineness double-component strong hydrophilicity chopped fiber is carried out combing through the second comb unit, is carded to the second fleece；First fleece and the second fleece are combined, common entrance flat screen type oven heat, arranges the temperature of flat screen type oven heat, blast, makes the first fleece and the second fleece be heated and shape, then export after reinforcing, obtain strong hydrophilicity height thickness composite double layer Through-Air Thermal Bonded Nonwovens.The equipment that produces in the preparation method of the present invention is made up of at least two fiber inserting apparatus, two fiber comb unit, makes non-weaving cloth can use different types of fiber simultaneously.
Preferably, the temperature of described flat screen type oven heat controls between 120 DEG C-140 DEG C, and blast controls between 20-50Hz.
Preferably, described preparation method also includes embossed technology, described embossed technology to refer on the surface of Through-Air Thermal Bonded Nonwovens carrying out groove and embossed.
The present invention is divided into the upper and lower in the structure design of non-weaving cloth；Upper strata needs to contact the skin of user, thus fine and smooth, soft, smooth, reduces the frictional force with skin as far as possible, and makes user feel comfortable.Lower floor does not contact human body, needs to have high-tension, can support and improve the thickness of whole cloth cover.The low fineness double-component strong hydrophilicity chopped fiber used in the present invention and high fineness double-component strong hydrophilicity chopped fiber present wave curling in its natural state.In the present invention, fiber is the double-decker using two kinds of heterogeneities to be formed, and owing to the fusing point of the polymer of two kinds of heterogeneities is different, the high density polyethylene (HDPE) of fibrocortex occurs melted, and the terylene of sandwich layer does not changes；The polyethylene (PE) of fibrocortex is melted and makes fiber be welded to each other together, forms the state of non-weaving cloth, and through cooling and shaping, chilling temperature is less than 60 DEG C, more rolled cut after can complete to produce.
The invention has the beneficial effects as follows: contrast existing Through-Air Thermal Bonded Nonwovens, this product is soft, hydrophilicity is good, thickness is high, and there is certain resilience, strong hydrophilicity composite double layer non-weaving cloth of the present invention penetrates the test of anti-wet performance through five times, penetrating the anti-wet time still less than 3S, thickness promotes more than 50% than common hot blast nonwoven thickness.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fiber in strong hydrophilicity composite double layer non-weaving cloth one preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Refer to accompanying drawing 1, the embodiment of the present invention includes:
Embodiment 1 :A kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, described Through-Air Thermal Bonded Nonwovens includes double-layer structure: upper strata body contacting layer and lower support layer；Upper strata body contacting layer uses the fineness low fineness double-component strong hydrophilicity chopped fiber between 1.7-2.2Dtex to make, and lower support layer uses the fineness high fineness double-component strong hydrophilicity chopped fiber between 2.7-4.4Dtex to make；Low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber are all to include the double-decker of cortex and sandwich layer, and cortex is that polythene material is made, and sandwich layer is that polyester material is made.
Embodiment 2 :The present embodiment is with the difference of embodiment 1, and in the present embodiment, the length of low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber is all between 38-51mm.
Embodiment 3 :The present embodiment is with the difference of embodiment 1, and in the present embodiment, the grammes per square metre scope of described Through-Air Thermal Bonded Nonwovens is 18 ~ 30g/m2；Thickness is between 0.2-3.0mm.
Embodiment 4 :The present embodiment is with the difference of embodiment 1, and in the present embodiment, described Through-Air Thermal Bonded Nonwovens surface is provided with groove and embossing.
Embodiment 5 :The preparation method of a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, described preparation method includes operating as follows: through the first comb unit, low fineness double-component strong hydrophilicity chopped fiber is carried out combing, is carded to the first fleece；High fineness double-component strong hydrophilicity chopped fiber is carried out combing through the second comb unit, is carded to the second fleece；First fleece and the second fleece are combined, common entrance flat screen type oven heat, arranges the temperature of flat screen type oven heat, blast, makes the first fleece and the second fleece be heated and shape, then export after reinforcing, obtain strong hydrophilicity height thickness composite double layer Through-Air Thermal Bonded Nonwovens.
Embodiment 6 :The present embodiment is with the difference of embodiment 5, and the temperature of flat screen type oven heat described in the present embodiment controls between 120 DEG C-140 DEG C, and blast controls between 20-50Hz.
Embodiment 7 :The present embodiment is with the difference of embodiment 5, and preparation method described in the present embodiment also includes embossed technology, described embossed technology to refer on the surface of Through-Air Thermal Bonded Nonwovens carrying out groove and embossed.
Embodiment 8 :The preparation method of a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, described preparation method includes operating as follows: through the first comb unit, low fineness double-component strong hydrophilicity chopped fiber is carried out combing, is carded to the first fleece；High fineness double-component strong hydrophilicity chopped fiber is carried out combing through the second comb unit, is carded to the second fleece；First fleece and the second fleece are combined, common entrance flat screen type oven heat, arrange the temperature of flat screen type oven heat be 120 DEG C, blast be 50Hz, the first fleece and the second fleece is made to be heated and shape, then export after reinforcing, obtain strong hydrophilicity height thickness composite double layer Through-Air Thermal Bonded Nonwovens.
Embodiment 9 :The preparation method of a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, described preparation method includes operating as follows: through the first comb unit, low fineness double-component strong hydrophilicity chopped fiber is carried out combing, is carded to the first fleece；High fineness double-component strong hydrophilicity chopped fiber is carried out combing through the second comb unit, is carded to the second fleece；First fleece and the second fleece are combined, common entrance flat screen type oven heat, arrange the temperature of flat screen type oven heat be 130 DEG C, blast be 40Hz, the first fleece and the second fleece is made to be heated and shape, then export after reinforcing, obtain strong hydrophilicity height thickness composite double layer Through-Air Thermal Bonded Nonwovens, be then embossed technique, the surface of Through-Air Thermal Bonded Nonwovens carries out groove and embossed.
Embodiment 10 :The present embodiment makes a kind of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, specific as follows:
Composition of raw materials:
| Layer is not | Fiber | Formula |
| Upper strata | Skin-core structure PET/PE fine-denier strong hydrophilicity | 100% |
| Lower floor | Denier strong hydrophilicity in skin-core structure PET/PE | 100% |
Preparation process: use the hot blast production line with two fiber inserting apparatus and fiber comb unit, above-mentioned fibrous raw material is fed respectively at two feeding unit, raw material is after abundant shredding, by respective carding machine, its combing is become fleece respectively, two layer web combines at second comb unit end, by conveyer belt, fibre web is sent into hot air apparatus, wherein hot air apparatus the most handy plain net hot-air oven, so draw texture for fleece is less so that the thickness of final material keeps preferably.Fleece, during hot-air oven, runs into the hot-air more than 130 DEG C of PE fusing point, and the PE of skin-core structure melts and make fiber to be welded to each other together, form the state of non-weaving cloth, and through cooling and shaping, chilling temperature is 40 DEG C, more rolled cut after can complete produce.
Experimental example 1 :Using the Through-Air Thermal Bonded Nonwovens of embodiment 10 preparation as sample, testing thickness according to industry standard FZ/T60004-91 method, the test of FZ/T60017-93 method penetrates the anti-wet anti-wet time and returns moisture, tests 24g/m2Composite double layer fluff type Through-Air Thermal Bonded Nonwovens and two kinds of 24g/m2Common Through-Air Thermal Bonded Nonwovens contrast, concrete data are as shown in table 1.
Table 1 present invention and the contrast test result of common Through-Air Thermal Bonded Nonwovens
Test shows, the product of the present invention, compared with common Through-Air Thermal Bonded Nonwovens, has that to penetrate the anti-wet time fast and return the advantage that moisture is little, thickness is high.Contrast existing Through-Air Thermal Bonded Nonwovens, this product is soft, hydrophilicity is good, thickness is high, and there is certain resilience, strong hydrophilicity composite double layer non-weaving cloth of the present invention penetrates the test of anti-wet performance through five times, penetrating the anti-wet time still less than 3S, thickness promotes more than 50% than common hot blast nonwoven thickness.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. a strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, it is characterised in that described Through-Air Thermal Bonded Nonwovens includes double-layer structure: upper strata body contacting layer and lower support layer；Described upper strata body contacting layer uses low fineness double-component strong hydrophilicity chopped fiber to make, and described lower support layer uses high fineness double-component strong hydrophilicity chopped fiber to make；Described low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber are all to include the double-decker of cortex and sandwich layer, and described cortex is that polythene material is made, and described sandwich layer is that polyester material is made；The fineness of described low fineness double-component strong hydrophilicity chopped fiber is between 1.7-2.2Dtex；The fineness of described high fineness double-component strong hydrophilicity chopped fiber is between 2.7-4.4Dtex.
Strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 1, it is characterised in that the length of described low fineness double-component strong hydrophilicity chopped fiber and high fineness double-component strong hydrophilicity chopped fiber is all between 38-51mm.
Strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 1, it is characterised in that the grammes per square metre scope of described Through-Air Thermal Bonded Nonwovens is 18 ~ 30g/m2。
Strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 1, it is characterised in that described Through-Air Thermal Bonded Nonwovens surface is provided with groove and embossing.
Strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 1, it is characterised in that the thickness of described Through-Air Thermal Bonded Nonwovens is between 0.2-3.0mm.
6. the preparation method of a strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens, it is characterised in that described preparation method includes operating as follows: low fineness double-component strong hydrophilicity chopped fiber is carried out combing through the first comb unit, is carded to the first fleece；High fineness double-component strong hydrophilicity chopped fiber is carried out combing through the second comb unit, is carded to the second fleece；First fleece and the second fleece are combined, common entrance flat screen type oven heat, arranges the temperature of flat screen type oven heat, blast, makes the first fleece and the second fleece be heated and shape, then export after reinforcing, obtain strong hydrophilicity height thickness composite double layer Through-Air Thermal Bonded Nonwovens.
The preparation method of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 6, it is characterised in that the temperature of described flat screen type oven heat controls between 120 DEG C-140 DEG C, and blast controls between 20-50Hz.
The preparation method of strongly hydrophilic composite double layer Through-Air Thermal Bonded Nonwovens the most according to claim 6, it is characterised in that described preparation method also includes embossed technology, described embossed technology to refer on the surface of Through-Air Thermal Bonded Nonwovens carrying out groove and embossed.
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| CN201610188683.7A CN105780301A (en) | 2016-03-30 | 2016-03-30 | Strong-hydrophilic composite double-layer through-air thermal-bonded nonwoven and preparation method thereof |
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| CN108385275A (en) * | 2018-01-18 | 2018-08-10 | 北京大源非织造股份有限公司 | A kind of weak acid non-woven cloth |
| CN108442040A (en) * | 2018-03-13 | 2018-08-24 | 福建雷尔新材料有限公司 | A kind of preparation method of superfine fibre hot wind compound nonwoven cloth |
| CN108660615A (en) * | 2017-05-23 | 2018-10-16 | 招汉 | Manufacturing method, equipment and the hot-wind nonwoven cloth obtained of hot-wind nonwoven cloth |
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Application publication date: 20160720 |