CN102934963B - The preparation method of a kind of environment-friendlydegradable degradable wet tissue material - Google Patents
The preparation method of a kind of environment-friendlydegradable degradable wet tissue material Download PDFInfo
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- CN102934963B CN102934963B CN201210445653.1A CN201210445653A CN102934963B CN 102934963 B CN102934963 B CN 102934963B CN 201210445653 A CN201210445653 A CN 201210445653A CN 102934963 B CN102934963 B CN 102934963B
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Abstract
The present invention discloses the preparation method of a kind of environment-friendlydegradable degradable wet tissue material, and described method comprises the steps: that (1) adopts spun-bond process to prepare polypropylene spunbond non-woven fabric coiled material; (2) undertaken the polypropylene spunbond non-woven fabric coiled material that step (1) obtains adding and wet dry dry, punching or embossing, obtain the material of environment-friendlydegradable degradable wet tissue. The advantage such as the polypropylene spunbond non-woven fabrics prepared by the method for the invention is had high-hydroscopicity, do not fluff, soft fluffy, friction feel are good, alternative spunlace non-woven cloth prepares the hygenic towelette of environment-friendly degradable. The water-intake rate of described environment-friendlydegradable degradable wet tissue material is greater than 500-700%, and ventilative speed is greater than 900mm/s, and the water-intake rate considerably beyond existing spunlace non-woven cloth is 300 ~ 600%, and ventilative speed is at about 700mm/s.
Description
Technical field
The present invention relates to a kind of material that can be used for hygenic towelette, specifically, the present invention relates to the preparation method of a kind of environment-friendlydegradable degradable wet tissue material.
Background technology
Hygenic towelette is exactly a kind of a kind of paper handkerchief wiping hand or skin for wiping face being made up of pure water, non-woven fabrics and propylene glycol. In existing hygenic towelette, non-woven fabrics is generally spunlace non-woven cloth, is made up of polyster fibre (PET) and viscose fiber blending.
Terylene spunlace non-woven cloth, during production, power consumption is high, and it is huge that particularly power consumption (coal) consumes water. Common terylene spunlace non-woven cloth price is cheap, but not environmentally. The terylene spunlace non-woven cloth of environmental protection is on the high side, is not suitable for extensive use.
Viscose fiber belongs to regenerated cellulose fibre, and it take natural cellulose as raw material, makes soluble cellulose xanthate acid through operations such as alkalization, aging, yellows, then is dissolved in sig water and makes viscose glue, makes through wet-spinning. Traditional cellulose viscose manufacturing technique is acid-base neutralisation method, is preparing in fiber process, a large amount of use NaOH and H2SO4Generate a large amount of dithiocarbonic anhydride and hydrogen sulfide. Carbon disulfide gas directly sucks human body harm very big, and especially excite nerve system. Stink can be smelt near existing viscose fiber production factory, the production process of viscose fiber can produce a large amount of acid, alkali waste water, its directly discharge the loss causing serious water pollutions and a large amount of fibre resources is wasted.
Water acupuncture manipulation, also known as spun laced process, is a kind of important non woven fabric complete processing, due to the Particular craft technology of water acupuncture manipulation, its widespread use and medical sanitary product and synthetic leather base cloth, shirt, home decoration field. Its fibrous material wide material sources, it is possible to be terylene, polyamide fibre, polypropylene fibre, viscose fiber etc. The main purposes of current spun laced fabric is three major types, and namely medical, people removes from office with and wipes clean use, its sales orientation: people's leather spun laced fabric is mainly domestic, and medical spun laced fabric is export trade outlet mainly, wipes clean spun laced fabric and then exports and respectively account for a part with domestic. Spunlace non-woven cloth feel is soft, fluffy, high-hygroscopicity, have certain oil absorbing effect. But the lines of spunlace non-woven cloth is uneven, and, the energy consumption height of the preparation of spunlace non-woven cloth, not environmentally.
Spun-bonded non-woven fabrics: by polymer-extruded, stretching, after forming continuous filament yarn, long filament is laid to net, and fibre web through self bonding, heat bonding, chemical adhesion or mechanical consolidation method, makes fibre web become non-woven fabrics again. Spun-bonded non-woven fabrics has that high strength, resistance to elevated temperatures are excellent, ageing-resistant, uvioresistant, unit elongation height, stability and good permeability, corrosion-resistant, sound insulation, the advantage such as mothproof, nontoxic.
CN10600928A discloses a kind of chitin non-woven fabrics, and it is mixed by the base fiber of the N,O-CMC fiber of 10 ~ 100 weight parts and 0 ~ 90 weight part, and its preparation method mainly comprises the following steps: opener, giving cotton, stream is cotton, lapping, acupuncture, rolling, and packing. The chitin non-woven fabrics of this invention is used for facial mask, sanitary towel, protection pad, wet tissue or disposable paper urine pants.
Summary of the invention
An object of the present invention is to provide the preparation method of a kind of environment-friendlydegradable degradable wet tissue material, and the power consumption of described method is few, and simple to operate, cost is low. The non-woven fabrics prepared by the method has the advantages such as high-hydroscopicity, softness and not fluffing, is suitable for very much wet tissue material.
In order to achieve the above object, present invention employs following technical scheme:
The preparation method of described environment-friendlydegradable degradable wet tissue material, comprises the steps:
(1) spun-bond process is adopted to prepare polypropylene spunbond non-woven fabric coiled material;
(2) undertaken the polypropylene spunbond non-woven fabric coiled material that step (1) obtains adding and wet dry dry, punching or embossing, obtain the material of environment-friendlydegradable degradable wet tissue.
The present invention adopts spun-bond process to prepare spunbond polypropylene non-woven fabrics. Compare with viscose fiber with PET, polypropylene fiber (PP) more environmental protection. Polypropylene fibre density is 0.91g/cm3, PET density is 1.33g/cm3, difference about 40%, so the material that the harmless cloth of unit surface polypropylene fibre uses is less, cost obviously reduces.
The technical process that spun-bond process prepares non-woven fabrics is short, output height, and energy consumption is low, and the intensity of the non-woven fabrics prepared is big, elongation at break height, and mechanical property is excellent, and wide application.
After step (1) obtains polypropylene spunbond non-woven fabric coiled material, then carried out adding wet baking dry. What those skilled in the art can be known can be undertaken polypropylene spunbond non-woven fabric coiled material adds and wet dry dry equipment and all can realize the present invention, and the typical but non-limiting drying plant of the present invention is vacuum drum drying plant, revolving drum drying plant, boiling type drying plant, association type drying plant etc. such as.
Drying dry main purpose is remove moisture, and in follow-up punching or embossed technology, water is at high temperature vaporized, and easily causes spinning broken end or lousiness. Described drying temperature enables moisture remove, such as, can select 90 DEG C, 100 DEG C, 110 DEG C, 120 DEG C, 130 DEG C etc.
Spun-bond process is prepared in polypropylene spunbond non-woven fabric coiled material process, after lapping, it is necessary to reinforced by fibre web. The present invention selects hot-rolling method to carry out hot rolling reinforcing. Hot rolling is reinforced and namely fibre web is carried out heating and pressurizing, causes part fibers melt in fibre web and produces bonding and become non-woven. By punching or embossed technology, in the effect of pressure, non-woven fabric coiled material surface forms the decorative pattern with certain lines, it is possible to covers the defect that coiled material surface is original, and can improve outward appearance and beautify, it is to increase use value. There are good flexibility, ventilation property and elasticity, and there is good heat sealability, can degrade completely under physical environment. In hot rolling reinforcing process, do not use any chemical reagent, produce without the three wastes, without noise, it is not necessary to the water of evaporation tackiness agent, production rate height, energy consumption is low.
The equipment that i.e. punching or embossing are reinforced in hot rolling that what those skilled in the art can be known can be undertaken polypropylene spunbond non-woven fabric coiled material all can realize the present invention, the present invention's typical but non-limiting equipment such as hot rolls, flower roller and smooth roll with the use of. Punching of the present invention or embossed technology are as shown in Figure 2. Described punching or embossed technology be: non-woven fabrics spinning obtained carries out broadcasting respectively, it is wet to add, dry after, carry out punching or embossing, then rolling, cut.
Spun-bonded non-woven fabrics is slightly inferior to spunlace non-woven cloth in friction feel, the present invention wets by being undertaken the non-woven fabric coiled material that step (1) obtains adding and dries dry, punching or embossed technology, non-woven fabrics is processed into net areal nature, make polypropylene spunbond non-woven fabrics have high-hydroscopicity, do not fluff, soft fluffy, friction feel are good, can be used for the material of hygenic towelette.
Preferably, a rate of rolling of the colored roller of described hot rolls is 6 ~ 20%, such as 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, it is preferable that 7 ~ 18%, further preferably 8 ~ 15%. Rolling a rate too high, reduce water-absorbent and the ventilation property of non-woven fabrics, roll a rate too low, non-woven fabrics easily fluffs. The present invention is by selecting to roll the colored roller that a rate is 6 ~ 20%, and the polypropylene spunbond non-woven fabrics obtained ensure that under the prerequisite do not fluffed, and has very excellent water-absorbent and ventilation property. The water-intake rate of described non-woven fabrics is greater than 500-700%, and ventilative speed is greater than 900mm/s, and the water-intake rate considerably beyond existing spunlace non-woven cloth is 300 ~ 600%, and ventilative speed is at about 700mm/s. A described rate of rolling is spend the per-cent rolling area a little on roller and accounting for the area of whole colored roller.
Preferably, the polypropylene spunbond non-woven fabric coiled material that step (1) obtains gram be heavily 20 ~ 80gsm, such as 25gsm, 30gsm, 35gsm, 40gsm, 45gsm, 50gsm, 55gsm, 60gsm, 65gsm, 70gsm, 75gsm, 78gsm, 79gsm, preferably 25 ~ 75gsm, further preferred 30 ~ 70gsm.
Compared with prior art, the present invention has following useful effect:
(1) the present invention is by selecting polypropylene fiber as raw material, overcomes in terylene and viscose fiber preparation process not environmentally, and power consumption (coal), consumption water are huge, the shortcoming that energy consumption is excessive;
(2) to adopt spun-bond process to prepare the technical process of non-woven fabrics short in the present invention, output height, and energy consumption is low, and the intensity of the non-woven fabrics prepared is big, elongation at break height, and mechanical property is excellent, can 100% degrade completely, and wide application;
(3) advantage such as the polypropylene spunbond non-woven fabrics prepared by the method for the invention is had high-hydroscopicity, do not fluff, soft fluffy, friction feel are good, alternative spunlace non-woven cloth prepares the hygenic towelette of environment-friendly degradable;
(4) water-intake rate of the environment-friendlydegradable degradable wet tissue material obtained by the method for the invention is greater than 500-700%, and ventilative speed is greater than 900mm/s, and the water-intake rate considerably beyond existing spunlace non-woven cloth is 300 ~ 600%, and ventilative speed is at about 700mm/s.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and the technical scheme of the present invention is described further by embodiment.
Fig. 1: the process flow sheet of spun-bond process of the present invention.
Fig. 2: punching of the present invention or embossed technology schema.
Embodiment
For the present invention is described better, being convenient to understand the technical scheme of the present invention, the typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1
A preparation method for environment-friendlydegradable degradable wet tissue material, described method comprises the steps:
(1) spun-bond process is adopted to prepare gram polypropylene spunbond non-woven fabric coiled material being heavily 20gsm;
(2) being undertaken the polypropylene spunbond non-woven fabric coiled material that step (1) obtains adding and wet dry dry, adopt hot rolls to carry out hot rolling reinforcing, a rate of rolling of the colored roller of hot rolls is 6%, punches or obtains the material of environment-friendlydegradable degradable wet tissue after embossing.
Embodiment 2
A preparation method for environment-friendlydegradable degradable wet tissue material, described method comprises the steps:
(1) spun-bond process is adopted to prepare gram polypropylene spunbond non-woven fabric coiled material being heavily 80gsm;
(2) being undertaken the polypropylene spunbond non-woven fabric coiled material that step (1) obtains adding and wet dry dry, adopt hot rolls to carry out hot rolling reinforcing, a rate of rolling of the colored roller of hot rolls is 20%, punches or obtains the material of environment-friendlydegradable degradable wet tissue after embossing.
Embodiment 3
A preparation method for environment-friendlydegradable degradable wet tissue material, described method comprises the steps:
(1) spun-bond process is adopted to prepare gram polypropylene spunbond non-woven fabric coiled material being heavily 50gsm;
(2) being undertaken the polypropylene spunbond non-woven fabric coiled material that step (1) obtains drying dry, in preparation process, adopt hot rolls to carry out hot rolling reinforcing, a rate of rolling of the colored roller of hot rolls is 14%, punches or obtains the material of environment-friendlydegradable degradable wet tissue after embossing.
Applicant states, the present invention illustrates the method detailed of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned method detailed, does not namely mean that the present invention must rely on above-mentioned method detailed and could implement. Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (5)
1. the preparation method of an environment-friendlydegradable degradable wet tissue material, it is characterised in that, described method comprises the steps:
(1) spun-bond process is adopted to prepare polypropylene spunbond non-woven fabric coiled material;
(2) the polypropylene spunbond non-woven fabric coiled material that step (1) obtains carrying out adding wet baking dry, adopt hot rolls to carry out hot rolling reinforcing, punching or embossing, obtain the material of environment-friendlydegradable degradable wet tissue;
Wherein, a rate of rolling of the colored roller of described hot rolls is 6��20%, the polypropylene spunbond non-woven fabric coiled material that step (1) obtains gram be heavily 20��80gsm.
2. the method for claim 1, it is characterised in that, a rate of rolling of the colored roller of described hot rolls is 7��18%.
3. method as claimed in claim 2, it is characterised in that, a rate of rolling of the colored roller of described hot rolls is 8��15%.
4. the method for claim 1, it is characterised in that, the polypropylene spunbond non-woven fabric coiled material that step (1) obtains gram be heavily 25��75gsm.
5. method as claimed in claim 4, it is characterised in that, the polypropylene spunbond non-woven fabric coiled material that step (1) obtains gram be heavily 30��70gsm.
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| CN201210445653.1A CN102934963B (en) | 2012-11-09 | 2012-11-09 | The preparation method of a kind of environment-friendlydegradable degradable wet tissue material |
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| CN102934963B true CN102934963B (en) | 2016-06-01 |
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| CN103603139B (en) * | 2013-12-12 | 2015-11-11 | 潍坊志和无纺布有限公司 | Heat bonding nonwoven fabric and preparation method thereof |
| CN105239274B (en) * | 2015-11-12 | 2018-03-23 | 浙江金三发非织造布有限公司 | The special non-woven cloth of material and its production method are defended in a kind of two-sided hydrophilic punching |
| CN108251994B (en) * | 2017-11-06 | 2020-10-13 | 陈仲璜 | Softening method for spunlace nonwoven fabric and product thereof |
| CN108978036A (en) * | 2018-07-24 | 2018-12-11 | 浙江金三发非织造布有限公司 | A kind of production technology of on-line continuous composite hydrophilic non-woven cloth |
| CN108914392A (en) * | 2018-07-24 | 2018-11-30 | 浙江金三发非织造布有限公司 | A kind of production technology of on-line continuous composite non-weaving cloth |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101092067A (en) * | 2006-06-22 | 2007-12-26 | 江西国桥实业有限公司 | An environmental protective wet towel and preparation method |
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| JP5796336B2 (en) * | 2011-04-28 | 2015-10-21 | Jnc株式会社 | Uneven stretch nonwoven fabric |
| CN102673030A (en) * | 2012-05-17 | 2012-09-19 | 厦门延江工贸有限公司 | Perforated non-woven fabric |
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| CN101092067A (en) * | 2006-06-22 | 2007-12-26 | 江西国桥实业有限公司 | An environmental protective wet towel and preparation method |
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