CN102912556B - Cloth for sanitary pads and preparation method of cloth - Google Patents

Cloth for sanitary pads and preparation method of cloth Download PDF

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Publication number
CN102912556B
CN102912556B CN201210353725.XA CN201210353725A CN102912556B CN 102912556 B CN102912556 B CN 102912556B CN 201210353725 A CN201210353725 A CN 201210353725A CN 102912556 B CN102912556 B CN 102912556B
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preparation
cloth
water
water thorn
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CN102912556A (en
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李祖安
叶寿兴
叶长辉
黄族健
方国恩
聂祖宝
张嫦芳
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Fujian Funeng Nanfang sanitary materials Co., Ltd
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FUJIAN NANFANG CO LTD
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Abstract

The invention belongs to spunlace non-woven textile products for sanitary pads, particularly relates to cloth for sanitary pads and a preparation method of the cloth. The preparation method of the cloth includes the steps of compositing two fiber layers via spunlace and drying the two fiber layers. The two fiber layers is separated into an A layer and a B layer along the entering direction of liquid from surface to interior, wherein the A layer is a blended layer of hydrophilic polypropylene short fibers and viscose fibers, the B layer is composited by a one-step spunlace method, and production time for multiple steps is greatly shortened, and production efficiency is greatly efficiently improved. The prepared sanitary pad material is thin, a user feels dry and comfortable when using a sanitary pad, comfortable sensation is greatly increased, international advanced level is reached, usability of the sanitary pad can be effectively improved, and skin-friendliness and abrasive resistance are better. In addition, compared with a conventional two-step method, the preparation method can save energy by 40%-50%.

Description

Panty liner cloth and preparation method thereof
Technical field
The present invention relates to sanitary water non-woven textiles, particularly a kind of panty liner cloth and preparation method thereof.
Background technology
Since entering 21 century, along with the significantly raising of people's material and culture and living standard, absorbent article industry there occurs earth-shaking change, and it undergoes an unusual development rapidly.The fast development of absorbent article industry has driven the application of Sanitary criteria, and wherein non-weaving cloth occupies increasing proportion, and hydro-entangled non-woven fabric is owing to having the features such as surperficial exquisiteness, soft pro-skin, and in high-end nursing materials, development rapidly.China is the developing country that economic growth is the fastest in the world, and more and more pay attention to healthy and protection, panty liner class output rises year by year in recent years, and within 2008, consumption figure reaches 24,100,000,000, and sales volume reaches 15,000,000,000 yuan, increases by 15.1% than 2007 years.And high-grade panty liner tends to hydro-entangled non-woven fabric mostly, as Heng An group uses cotton spun laced fabric to produce high-grade sanitary napkin and panty liner, U.S.'s Kimberly that whole world sanitary care article ranks the first, also uses spun laced fabric to produce and specializes in American-European high-grade panty liner.Visible, hydro-entangled non-woven fabric has wide market prospects in absorbent article field.
But the hydro-entangled non-woven fabric of the current high-grade panty liner of China also needs further exploitation, particularly require its contact surface layer have super dry and comfortable, soft, comfortable, Surface Permeability is good, anti-bleed back, health, filoplume are few, wear-resisting, with the plurality of advantages such as skin is non-stimulated, antibacterial, wicking layer then has the features such as softness, comfortable, liquid absorption is large.
Panty liner belongs to the one of absorbent non-woven textiles.In use, the body fluid of discharging of asking for help can permeable topsheet rapidly, and enters wicking layer, and particularly top layer will very dry and comfortable, anti-bleed back fairly good.Otherwise the body fluid of people can not be absorbed rapidly, add anti-bleed back undesirable, can not effectively protection human skin, comfort can be caused bad.Even at present with the high-grade panty liner that cotton spun laced fabric is produced, although there is extremely soft texture, anti-rewet properties technology is captured not yet completely, does not also reach super dry and comfortable effect.The manufacturer that the U.S., Germany etc. are world-class, all has exploitation water to sting high-grade feminine hygiene protection pad, but produces according to two-step method, namely first produce surface layer, then surface layer laminating production together with wicking layer.Both combinations are not too tight, and surface is dry and comfortable not, and cloth cover lines is also comparatively thick, and comfort is undesirable, and production cost is also very high.
On the whole, the product development of high-grade panty liner is not also very desirable.
Summary of the invention
The technical problem that the present invention mainly solves is to provide super dry-touch type panty liner cloth of a kind of one-step method water thorn and preparation method thereof, can absorb the body fluid of human body well, and keeps the extreme on surface dry and comfortable, plays good health-care function to human body.
For solving the problems of the technologies described above, the present invention adopt a technical scheme be: a kind of panty liner cloth is provided, primarily of two fibre layers through water sting compound, dry form, this two fibre layers by the direction entered from liquid by showing to be respectively A layer and B layer to inner; A layer is the mixed layer of hydrophily polypropylene fiber and viscose; B layer is viscose layer.
Wherein, described A layer is the mixed layer of 80% hydrophily polypropylene fiber and 20% viscose, and grammes per square metre is 28g/m 2± 2g/m 2; Described B layer is 100% viscose layer, and grammes per square metre is 57g/m 2± 3g/m 2; After two-layer water thorn compound, the grammes per square metre of cloth is 85g/m 2± 5g/m 2.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of preparation method preparing above-mentioned panty liner cloth, comprise step: prepare A layer and B layer fibrage simultaneously, two fibre layers water thorn compound is obtained water thorn grey cloth, post-drying, obtain described panty liner cloth.
Wherein, described A layer and B layer fibrage are prepared by a spun-laced machine one-step method, and water thorn recombination process shares 5 water needle heads and carries out entanglement compound, and the 1st water needle head liquid drugs injection pressure is 30bar ± 5bar; 2nd water needle head liquid drugs injection pressure is 100bar ± 5bar; 3rd water needle head liquid drugs injection pressure is 150bar ± 5bar; 4th water needle head liquid drugs injection pressure is 200bar ± 5bar; 5th water needle head liquid drugs injection pressure is 120bar ± 5bar; Total liquid drugs injection pressure is 600bar ± 25bar.
Wherein, described spun-laced machine has 4 water thorn rotary drums, and the degree of draft between the 1st, 2,3,4 water thorn rotary drum is respectively 7% ± 1%, 5% ± 1%, 7% ± 1%.
Wherein, in the preparation of water thorn grey cloth, adopt two carding machines to carry out combing to A layer and B layer respectively simultaneously, First combing owner cylinder speed is 1000m/min ± 50m/min, the speed of upper and lower doffer is controlled as 36m/min ± 3m/min, 35m/min ± 3m/min, and the speeds control of upper and lower cohesion is 25m/min ± 3m/min; Second combing owner cylinder speed is 1100m/min ± 50m/min, and the speed of upper and lower doffer is controlled as 70m/min ± 3m/min, 65m/min ± 3m/min.
Wherein, the fibrolaminar preparation method of A layer is as follows: hydrophily polypropylene fiber and viscose mixture are fed through fiber, thick shredding, fibers mixture, smart shredding, fiber carding obtain; Fibrolaminar preparation method is as follows for B layer: obtained through fiber feeding, thick shredding, fibers mixture, smart shredding, fiber carding, cross lapping, drawing-off by viscose.
Wherein, after obtained water thorn grey cloth, first through the dehydration of dehydration curtain, then by rolling after the oven dry of two hot blast rotary drums, then after cutting, described panty liner cloth is namely obtained.
Wherein, the water thorn grey cloth of hygrometric state, by the negative-pressure ward of dehydration curtain 200mbar ± 10mbar, dries after sloughing the moisture of 80% again.
Wherein, described two hot blast rotary drums carry out hot blast by hot blast to water thorn grey cloth and penetrate oven dry, and the temperature of hot-air seasoning is 110 DEG C ± 10 DEG C, and the speed of a motor vehicle is 40m/min ± 2m/min.
The invention has the beneficial effects as follows: the present invention is relative to prior art, there is following advantage: top layer (A layer) adopts hydrophilic polypropylene short fiber and viscose staple fibre to mix, hydrophily polypropylene fiber can allow body fluid rapid osmotic to wicking layer, and surface not adsorptive liquid, make the dermal sensation that contacts with it very dry and comfortable, viscose then can play its superpower hygroscopicity, body fluid pervious is obtained faster; A, B two-layer employing one-step method water thorn compound, decrease the production time of multistep compound significantly, extremely effectively improve production efficiency, the Thickness Ratio of the panty liner material obtained is thinner, subsides skin is dry and comfortable, relaxes and makes sense and significantly promote, reach advanced world standards, and effectively can improve the serviceability of protection pad, make skin-friendly, ABRASION RESISTANCE more excellent; The comparable traditional two step method of energy resource consumption saves 40%-50% in addition.
Detailed description of the invention
By describing technology contents of the present invention, structural feature in detail, being realized object and effect, be explained in detail below in conjunction with embodiment.
Panty liner cloth product of the present invention mainly for the production of high-grade feminine hygiene protection pad, require contact surface layer have super dry and comfortable, soft, comfortable, Surface Permeability is good, anti-bleed back, health, filoplume are few, wear-resisting, with the plurality of advantages such as skin is non-stimulated, antibacterial.Wicking layer then has the features such as softness, comfortable, liquid absorption is large, raw material is biodegradable.
According to above-mentioned characteristic requirements, panty liner cloth provided by the present invention, primarily of two fibre layers through water sting compound, dry form, this two fibre layers by the direction entered from liquid by showing to be respectively A layer and B layer to inner; A layer is the mixed layer of 80%1.5D × 40mm hydrophily polypropylene fiber and 20%1.5D × 40mm viscose; B layer is 100%1.5D × 40mm viscose layer.
A layer grammes per square metre is 28g/m 2± 2g/m 2, B layer grammes per square metre is 57g/m 2± 3g/m 2, after two-layer compound, spun laced fabric grammes per square metre is 85g/m 2± 5g/m 2, its density reaches 0.17g/cm 3, thickness can be made less, and liquid absorption is larger.
A layer is contact surface layer, adopts 80% import novel environment-friendly water to sting special polypropylene fiber and mixes with 20% viscose.Hydrophily polypropylene fiber has certain specific physical performance, its have softness, dry and comfortable, with the feature such as skin compatibility is good, antibacterial, it is the splendid fibrous raw material producing amenities, during as contact surface layer, body fluid rapid osmotic can be allowed to wicking layer, and surface not adsorptive liquid, make the dermal sensation that contacts with it very dry and comfortable.And only account for the viscose on top layer 20%, then play its superpower hygroscopicity, body fluid pervious is obtained faster.
B layer is wicking layer, and it selects high-quality import viscose.Viscose is cellulose fibre, and to determine moisture regain be 13% to viscose public affairs, and its raw material are wood pulp, paper pulp, bamboo pulp etc., have softness, natural environmental-protective, biodegradation, good water absorption, does not hinder the features such as skin, is applicable to very much making hygienic material.
A layer and B layer are stung compound through one-step method water by this panty liner cloth, the production time that drastically reduce the area multistep compound improves production efficiency extremely effectively, the Thickness Ratio of the panty liner material obtained is thinner, subsides skin is dry and comfortable, relax and make sense and significantly promote, reach advanced world standards, and effectively can improve the serviceability of protection pad, make skin-friendly, ABRASION RESISTANCE more excellent; The comparable traditional two step method of energy resource consumption saves 40%-50% in addition.
Preparation method's step of above-mentioned panty liner cloth is as follows:
1) A, B layer is prepared respectively: fibrolaminar preparation method is as follows for A layer: 80%1.5D × 40mm hydrophily polypropylene fiber and 20%1.5D × 40mm viscose mixture are fed through fiber, thick shredding, fibers mixture, smart shredding, fiber carding obtain; Fibrolaminar preparation method is as follows for B layer: obtained through fiber feeding, thick shredding, fibers mixture, smart shredding, fiber carding, cross lapping, drawing-off by 100%1.5D × 40mm viscose.
Wherein, two fibrages are simultaneously each through a carding machine carding respectively, then carry out water thorn compound.Compare in existing technique and need first production contact surface layer, again by contact surface layer laminating production together with wicking layer, through the frivolous softness of panty liner cloth, dry and comfortable effective of One-step production, and greatly shorten the production time, high speed high yield can be realized, significantly reduce production cost.First combing owner cylinder speed is 1000m/min ± 50m/min, and the speed of upper and lower doffer is controlled as 36m/min ± 3m/min, 35m/min ± 3m/min, and the speeds control of upper and lower cohesion is 25m/min ± 3m/min; Second combing owner cylinder speed is 1100m/min ± 50m/min, and the speed of upper and lower doffer is controlled as 70m/min ± 3m/min, 65m/min ± 3m/min.By strictly controlling the technological parameter of carding machine combing lapping, the problems such as density irregularity, lapping wrinkle, surface irregularity can be prevented.
2) two-layer different fibre lay-up is added together, tangles the water thorn grey cloth that is composited through spun-laced machine 5 water needle heads.1st water needle head liquid drugs injection pressure is 30bar ± 5bar; 2nd water needle head liquid drugs injection pressure is 100bar ± 5bar; 3rd water needle head liquid drugs injection pressure is 150bar ± 5bar; 4th water needle head liquid drugs injection pressure is 200bar ± 5bar; 5th water needle head liquid drugs injection pressure is 120bar ± 5bar; Total liquid drugs injection pressure is 600bar ± 25bar.Degree of draft between spun-laced machine the 1st, 2,3,4 water thorn rotary drums is respectively 7% ± 1%, 5% ± 1%, 7% ± 1%.
Liquid drugs injection pressure easily causes too greatly spun laced fabric two-layer composite to be destroyed, thus affect product body fluid absorption and surface dry effect, and liquid drugs injection insufficient pressure does not then reach requirement in the aspect such as wear-resisting, the filoplume of product, affects terminal client use.Can ensure that each functional layer form is complete, interface is clear to this Stress control of liquid drugs injection during water thorn in preparation process of the present invention, there is certain separation strength while, ensure again have certain adhesion between each functional layer, ensure comprehensive assimilation effect.
And water thorn grey cloth tension force in process of production can be controlled to the control of degree of draft between water thorn rotary drum, prevent the generation of misdraft, reduce tension force as far as possible, to ensure product comprehensibility index composite demand.
3) by obtained hygrometric state water thorn composite grey fabric, by the negative-pressure ward of dehydration curtain 200mbar ± 10mbar, the moisture of 80% is sloughed.First adopt the method for physics dehydration to slough most moisture, required heat energy can be reduced like this in following drying course.
4) carry out drying rolling to water thorn grey cloth: specifically carry out hot blast by two hot blast rotary drums by the water thorn composite grey fabric of hot blast to hygrometric state and penetrate oven dry, the temperature of hot-air seasoning is (110 ± 10) DEG C, and the speed of a motor vehicle is (40 ± 2) m/min.
5) carry out cutting on cutting machine and check and obtain satisfactory panty liner cloth.
The super dry-touch type panty liner cloth specification table of one-step method water thorn that table 1 obtains for the present invention.
Traditional material is wherein the two-layer compound product that domestic two step method obtains, and A layer is (35 ± 3) g/m 2100% normal polypropylene fibrage, B layer is 100% viscose layer.
Table 1
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or the conversion of equivalent flow process, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (7)

1. a preparation method for panty liner cloth, is characterized in that: described panty liner cloth primarily of two fibre layers through water sting compound, dry form, this two fibre layers by the direction entered from liquid by showing to be respectively A layer and B layer to inner;
Described A layer is the mixed layer of 80% hydrophily polypropylene fiber and 20% viscose, and grammes per square metre is 28g/m 2± 2g/m 2; Described B layer is 100% viscose layer, and grammes per square metre is 57g/m 2± 3g/m 2; After two-layer water thorn compound, the grammes per square metre of cloth is 85g/m 2± 5g/m 2;
Described preparation method comprises step:
Prepare A layer and B layer fibrage simultaneously, two fibre layers water thorn compound obtained water thorn grey cloth, post-drying, obtain described panty liner cloth;
Described A layer and B layer fibrage are prepared by a spun-laced machine one-step method, and water thorn recombination process shares 5 water needle heads and carries out entanglement compound, and the 1st water needle head liquid drugs injection pressure is 30bar ± 5bar; 2nd water needle head liquid drugs injection pressure is 100bar ± 5bar; 3rd water needle head liquid drugs injection pressure is 150bar ± 5bar; 4th water needle head liquid drugs injection pressure is 200bar ± 5bar; 5th water needle head liquid drugs injection pressure is 120bar ± 5bar; Total liquid drugs injection pressure is 600bar ± 25bar.
2. preparation method according to claim 1, is characterized in that:
Described spun-laced machine has 4 water thorn rotary drums, and the degree of draft between the 1st, 2,3,4 water thorn rotary drum is respectively 7% ± 1%, 5% ± 1%, 7% ± 1%.
3. preparation method according to claim 1, is characterized in that:
In the preparation of water thorn grey cloth, adopt two carding machines to carry out combing to A layer and B layer respectively simultaneously, First combing owner cylinder speed is 1000m/min ± 50m/min, the speed of upper and lower doffer is controlled as 36m/min ± 3m/min, 35m/min ± 3m/min, and the speeds control of upper and lower cohesion is 25m/min ± 3m/min; Second combing owner cylinder speed is 1100m/min ± 50m/min, and the speed of upper and lower doffer is controlled as 70m/min ± 3m/min, 65m/min ± 3m/min.
4. the preparation method according to any one of claim 1-3, is characterized in that,
Fibrolaminar preparation method is as follows for A layer: hydrophily polypropylene fiber and viscose mixture are fed through fiber, thick shredding, fibers mixture, smart shredding, fiber carding obtain;
Fibrolaminar preparation method is as follows for B layer: obtained through fiber feeding, thick shredding, fibers mixture, smart shredding, fiber carding, cross lapping, drawing-off by viscose.
5. the preparation method according to any one of claim 1-3, is characterized in that, after obtained water thorn grey cloth, first through the dehydration of dehydration curtain, then by rolling after the oven dry of two hot blast rotary drums, then after cutting, namely obtains described panty liner cloth.
6. preparation method according to claim 5, is characterized in that, the water thorn grey cloth of hygrometric state, by the negative-pressure ward of dehydration curtain 200mbar ± 10mbar, dries after sloughing the moisture of 80% again.
7. preparation method according to claim 5, is characterized in that, described two hot blast rotary drums carry out hot blast by hot blast to water thorn grey cloth and penetrate oven dry, and the temperature of hot-air seasoning is 110 DEG C ± 10 DEG C, and the speed of a motor vehicle is 40m/min ± 2m/min.
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CN111945291A (en) * 2020-08-28 2020-11-17 大连瑞光非织造布集团有限公司 Seepage-proofing sanitary material wrapping cloth and preparation method thereof
CN112430897B (en) * 2020-11-20 2022-03-11 杭州诺邦无纺股份有限公司 Functional non-woven composite material and preparation method thereof
CN114855362A (en) * 2022-05-19 2022-08-05 济南永信新材料科技有限公司 Three-dimensional jacquard spunlace non-woven fabric, preparation method thereof and three-dimensional jacquard roller

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