CN101424009A - Method for preparing low-temperature water-soluble interlaced fabric - Google Patents
Method for preparing low-temperature water-soluble interlaced fabric Download PDFInfo
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- CN101424009A CN101424009A CNA2008102041960A CN200810204196A CN101424009A CN 101424009 A CN101424009 A CN 101424009A CN A2008102041960 A CNA2008102041960 A CN A2008102041960A CN 200810204196 A CN200810204196 A CN 200810204196A CN 101424009 A CN101424009 A CN 101424009A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004744 fabric Substances 0.000 title claims description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 39
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 39
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims abstract description 11
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims abstract description 7
- 229940068984 polyvinyl alcohol Drugs 0.000 claims abstract 9
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims abstract 9
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007864 aqueous solution Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- 239000003623 enhancer Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 238000009987 spinning Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
本发明涉及一种低温水溶性非织造布的制备方法，(1)将物料聚乙烯醇、流动促进剂和增溶剂，其重量百分比90－99.5％∶0.5－5％∶0－5％溶解在水中，配制成物料的溶液，其物料的重量百分浓度为15－45％，水的重量百分浓度为85－55％；(2)将上述溶液经过静置脱泡或真空脱泡，储放在储料罐；(3)用压缩空气把溶液从储料罐压至计量泵，储罐的温度为90－99℃；(4)用热的压缩空气把溶液从喷嘴喷出，形成聚乙烯醇细丝；(5)聚乙烯醇细丝在热滚筒上成网、干燥，卷取。本发明所得的低温水熔性非织造布在空气中不会吸潮而糊化，而在水中可溶解；聚乙烯醇水溶液直接喷射成网制造非织造布，工艺过程简单，无环境污染。
The invention relates to a method for preparing a low-temperature water-soluble nonwoven fabric. (1) Dissolving polyvinyl alcohol, a flow promoter and a solubilizing agent in a weight percentage of 90-99.5%:0.5-5%:0-5% in The water is prepared as a material solution, the weight percent concentration of the material is 15-45%, and the weight percent concentration of water is 85-55%; Put it in the storage tank; (3) Use compressed air to press the solution from the storage tank to the metering pump, the temperature of the storage tank is 90-99 °C; (4) Use hot compressed air to spray the solution from the nozzle to form poly Vinyl alcohol filaments; (5) polyvinyl alcohol filaments are formed into a net on a hot roller, dried and coiled. The low-temperature water-melting non-woven fabric obtained by the invention will not gelatinize due to moisture absorption in the air, but can be dissolved in water; the polyvinyl alcohol aqueous solution is directly sprayed into a web to manufacture the non-woven fabric, the process is simple, and there is no environmental pollution.
Description
技术领域 technical field
本发明属水溶性非织造布的制备领域，特别是涉及一种低温水溶性非织造布的制备方法。The invention belongs to the field of preparation of water-soluble non-woven fabrics, in particular to a preparation method of low-temperature water-soluble non-woven fabrics.
背景技术 Background technique
水溶性聚乙烯醇非织造布有在水中溶解的特性，聚乙烯醇水溶液中聚乙烯醇可用生化的方法被降解，对于一次性使用的非织造布来说，它是一种绿色环保的织物。目前，市场上的水溶性聚乙烯醇非织造布的水溶温度都在75℃以上，在低于75℃的水中难以溶解。这种产品已在一些医院中得到应用，制作手术服，病员服，及床单等一次性的用品。这种服装在使用后即可溶解在热水中，然后在生化池中被微生物杀灭病菌，降解聚乙烯醇，废水达到环保安全排放。在很多特殊场合需要非织造布在75℃以下，甚至在室温条件的水中就能溶解，这样的普通的水溶性聚乙烯醇非织造布就无能为力了。Water-soluble polyvinyl alcohol non-woven fabric has the characteristic of dissolving in water. Polyvinyl alcohol in polyvinyl alcohol aqueous solution can be degraded by biochemical methods. For disposable non-woven fabrics, it is a green and environmentally friendly fabric. At present, the water-soluble temperature of water-soluble polyvinyl alcohol nonwovens on the market is above 75°C, and it is difficult to dissolve in water below 75°C. This product has been used in some hospitals to make disposable items such as surgical gowns, patient gowns, and bed sheets. This kind of clothing can be dissolved in hot water after use, and then the bacteria will be killed by microorganisms in the biochemical pool, the polyvinyl alcohol will be degraded, and the waste water will be discharged in an environmentally friendly and safe manner. In many special occasions, nonwoven fabrics need to be dissolved below 75°C, even in water at room temperature, and such ordinary water-soluble polyvinyl alcohol nonwoven fabrics are helpless.
普通的水溶性聚乙烯醇非织造布是由聚合度1700，醇解度99％的聚乙烯醇，先经湿法纺丝制成不经缩醛化的短纤维的纤维制造过程，然后在把这些水溶性的短纤维制成非织造布。Ordinary water-soluble polyvinyl alcohol nonwovens are made of polyvinyl alcohol with a degree of polymerization of 1700 and a degree of alcoholysis of 99%. These water-soluble staple fibers are made into nonwoven fabrics.
聚乙烯醇纤维的制造过程，是先把聚乙烯醇溶解成溶液，再喷丝凝固成纤维的过程，该纺丝过程工艺复杂，污染大，然后再用纤维铺网制非制造布的复杂过程，The manufacturing process of polyvinyl alcohol fibers is the process of dissolving polyvinyl alcohol into a solution first, and then spinning and coagulating into fibers. The spinning process is complicated and polluting, and then the complex process of laying fibers to make non-manufacturing cloth ,
目前，仅有专利申请号为96109434.6，“用于保健医疗的水溶性非织造布”的发明的非织造布可在常温条件下溶于水中。它是由纤维素纤维制成非织造布后，再经化学处理成羧甲基纤维素盐而成的。这样的非织造布在空气中会吸湿而返潮糊化，无法作为服用和工业用织物使用，只能作为医用或美容用敷料使用。At present, only the patent application No. 96109434.6, "Water-Soluble Nonwovens for Health Care" is a nonwoven that can be dissolved in water at room temperature. It is made of cellulose fibers into non-woven fabrics, and then chemically treated into carboxymethyl cellulose salt. Such non-woven fabrics will absorb moisture in the air and become gelatinized after returning to moisture. They cannot be used as clothing and industrial fabrics, but can only be used as medical or cosmetic dressings.
我们也在申请号为200710043805.4和200710043806.9的发明“纺粘水溶性聚乙烯醇非织造布的制备方法”和“熔喷水溶性聚乙烯醇非织造布的制备方法”用热塑性水溶聚乙烯醇原料制备了水溶性的聚乙烯醇。但这种水溶性热塑性聚乙烯醇目前国内还未生产，所以研究了用国内生产的非热塑性的聚乙烯醇制造水溶性的非织造布的方法。We also used thermoplastic water-soluble polyvinyl alcohol raw materials for the inventions "Preparation method of spunbonded water-soluble polyvinyl alcohol nonwoven fabric" and "Preparation method of melt-blown water-soluble polyvinyl alcohol nonwoven fabric" with application numbers 200710043805.4 and 200710043806.9 water-soluble polyvinyl alcohol. But this kind of water-soluble thermoplastic polyvinyl alcohol has not been produced in China at present, so the method of making water-soluble nonwoven fabrics with domestically produced non-thermoplastic polyvinyl alcohol has been studied.
发明内容 Contents of the invention
本发明所要解决的技术问题是提供一种低温水溶性非织造布的制备方法，该方法工艺过程简单，无环境污染。The technical problem to be solved by the present invention is to provide a method for preparing a low-temperature water-soluble nonwoven fabric, which has a simple process and no environmental pollution.
本发明为一种低温水溶性非织造布的制备方法，包括：The invention is a method for preparing a low-temperature water-soluble nonwoven fabric, comprising:
(1)将物料聚乙烯醇、流动促进剂和增溶剂，其重量百分比为90％—99.5％：0.5％—5％：0％—5％，溶解在水中，配制成物料的溶液，其物料的重量百分浓度为15％—45％，水的重量百分浓度为85-55％；(1) The material polyvinyl alcohol, flow promoter and solubilizer, the weight percentage of which is 90%-99.5%: 0.5%-5%: 0%-5%, is dissolved in water to prepare a solution of the material, and the material The weight percent concentration of water is 15%-45%, and the weight percent concentration of water is 85-55%;
(2)将上述溶液经过静置脱泡或真空脱泡，储放在储料罐，储料罐的温度保持在90—99℃的温度，使溶液有较好的流动性；(2) The above solution is stored in a storage tank through standing defoaming or vacuum defoaming, and the temperature of the storage tank is kept at a temperature of 90-99 ° C, so that the solution has better fluidity;
(3)用压缩空气把溶液从储料罐压至计量泵，压缩空气的压力是2-5公斤/厘米平方；储罐的温度为90—99℃；(3) Press the solution from the storage tank to the metering pump with compressed air, the pressure of the compressed air is 2-5 kg/cm2; the temperature of the storage tank is 90-99°C;
(4)用热的压缩空气把溶液从喷嘴喷出，压缩空气温度100—150℃，压力2-6公斤/厘米平方，形成聚乙烯醇细丝；(4) spray the solution from the nozzle with hot compressed air, the temperature of the compressed air is 100-150°C, and the pressure is 2-6 kg/cm2 to form polyvinyl alcohol filaments;
(5)聚乙烯醇细丝在温度为80-120℃热滚筒上成网、干燥，卷取，卷曲速度为50～500m/min。(5) The polyvinyl alcohol filaments are formed into a net on a hot roller at a temperature of 80-120° C., dried, and coiled at a coiling speed of 50-500 m/min.
所述的聚乙烯醇、流动促进剂和增溶剂在另一片申请“一种低温水溶性非织造布及其组成”中已介绍。The polyvinyl alcohol, flow promoter and solubilizer have been introduced in another application "a low-temperature water-soluble nonwoven fabric and its composition".
所述的低温水溶性非织造布是由聚乙烯醇溶液经喷射直接成网的方法制取的聚乙烯醇非织造布。The low-temperature water-soluble non-woven fabric is a polyvinyl alcohol non-woven fabric prepared by spraying a polyvinyl alcohol solution into a web directly.
所述步骤(2)静置脱泡的时间为24—48小时；真空脱泡的真空度为740-760mmHg。The time of the step (2) standing for defoaming is 24-48 hours; the vacuum degree of vacuum defoaming is 740-760mmHg.
本工艺除了可制造0—20℃温度以上的水中可溶解的聚乙烯醇非织造布外，本工艺也可适用于各种其他规格的聚乙烯醇织制造非织造布。In addition to producing polyvinyl alcohol non-woven fabrics soluble in water above 0-20°C, this process is also applicable to various other specifications of polyvinyl alcohol weaving non-woven fabrics.
有益效果Beneficial effect
(1)本发明所得的低温水熔性非织造布在空气中不会吸潮而糊化，在0—20℃以上的水中溶解的聚乙烯醇非织造布，可作一次性的工业用途基材和用即弃的民用制品使用；(1) The low-temperature water-melt nonwoven fabric obtained in the present invention will not absorb moisture and gelatinize in the air, and the polyvinyl alcohol nonwoven fabric dissolved in water above 0-20°C can be used as a disposable base for industrial use. materials and disposable civilian products;
(2)聚乙烯醇水溶液直接喷射成网制造非制造布，工艺过程简单，无环境污染。(2) Polyvinyl alcohol aqueous solution is directly sprayed into a web to make non-manufacturing cloth, the process is simple and there is no environmental pollution.
附图说明 Description of drawings
图1制造工艺流程。Figure 1 Manufacturing process flow.
具体实施方法Specific implementation method
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
实施例1Example 1
将物料溶解于水中成物料重量百份浓度为30％的溶液。物料组成为聚乙烯醇：流动促进剂：增溶剂的比例为97：2：1。用压力3公斤/平方厘米的空气将95℃的溶液挤出，经计量泵后，由压力4公斤/平方厘米的130℃热空气，将溶液喷成丝，在温度100℃的滚筒上成网，干燥，卷取得在20℃的水中完全溶解的低温水溶性非织造布，其规格为35克/M2。The material is dissolved in water to form a solution with a concentration of 30% by weight of the material. The material composition is polyvinyl alcohol: flow enhancer: solubilizer ratio of 97:2:1. Extrude the solution at 95°C with air with a pressure of 3 kg/cm2, and spray the solution into filaments with hot air at 130°C with a pressure of 4 kg/cm2 after passing through the metering pump, and then form a web on a roller with a temperature of 100°C , dried, and rolled to obtain a low-temperature water-soluble nonwoven fabric that is completely dissolved in water at 20° C., and its specification is 35 g/M 2 .
实施例2Example 2
将物料溶解于水中成物料重量百份浓度为15％的溶液。物料组成为聚乙烯醇：流动促进剂：增溶剂的比例为90：5：5。用压力2公斤/平方厘米的空气将90℃的溶液挤出，经计量泵后，由压力2公斤/平方厘米的150℃热空气，将溶液喷成丝，在温度120℃的滚筒上成网，干燥，卷取得在10℃的水中完全溶解的低温水溶性非织造布，其规格为18克/M2。The material is dissolved in water to form a solution with a concentration of 15% by weight of the material. The composition of the material is polyvinyl alcohol: flow enhancer: solubilizer in a ratio of 90:5:5. Extrude the solution at 90°C with air with a pressure of 2 kg/cm2, and spray the solution into filaments with hot air at 150°C with a pressure of 2 kg/cm2 after passing through the metering pump, and then form a web on a roller with a temperature of 120°C , dried, and rolled to obtain a low-temperature water-soluble nonwoven fabric that is completely dissolved in water at 10°C, and its specification is 18 g/M 2 .
实施例3Example 3
将物料溶解于水中成物料重量百份浓度为45％的溶液。物料组成为聚乙烯醇：流动促进剂：增溶剂的比例为92：3：5。用压力5公斤/平方厘米的空气将99℃的溶液挤出，经计量泵后，由压力6公斤/平方厘米的130℃热空气，将溶液喷成丝，在温度80℃的滚筒上成网，干燥，卷取得在10℃的水中完全溶解的低温水溶性非织造布，其规格为75克/M2。The material is dissolved in water to form a solution with a concentration of 45% by weight of the material. The material composition is polyvinyl alcohol: flow enhancer: solubilizer ratio of 92:3:5. Extrude the solution at 99°C with a pressure of 5 kg/cm2, and spray the solution into filaments with a pressure of 6 kg/cm2 of hot air at 130°C after passing through the metering pump, and then form a web on a drum at a temperature of 80°C , dried, and rolled to obtain a low-temperature water-soluble nonwoven fabric that is completely dissolved in water at 10°C, and its specification is 75 g/M 2 .
实施例4Example 4
将物料溶解于水中成物料重量百份浓度为40％的溶液。物料组成为聚乙烯醇：流动促进剂：增溶剂的比例为95：4.5：0.5。用压力4.5公斤/平方厘米的空气将98℃的溶液挤出，经计量泵后，由压力5公斤/平方厘米的125℃热空气，将溶液喷成丝，在温度100℃的滚筒上成网，干燥，卷取得在10℃的水中完全溶解的低温水溶性非织造布，其规格为68克/M2。The material is dissolved in water to form a solution with a concentration of 40% by weight of the material. The composition of the material is polyvinyl alcohol: flow enhancer: solubilizer in a ratio of 95:4.5:0.5. Extrude the solution at 98°C with air with a pressure of 4.5 kg/cm2, and spray the solution into filaments with hot air at 125°C with a pressure of 5 kg/cm2 after passing through the metering pump, and form a web on a roller with a temperature of 100°C , dried, and rolled to obtain a low-temperature water-soluble nonwoven fabric that is completely dissolved in water at 10°C, and its specification is 68 g/M 2 .
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120052036A1 (en) * | 2010-07-02 | 2012-03-01 | Glenn Jr Robert Wayne | Filaments comprising an active agent nonwoven webs and methods for making same |
| CN105908361A (en) * | 2016-05-18 | 2016-08-31 | 丹东旺盛源无纺布有限公司 | Pulp mixing technology for producing water soluble non-woven fabric through water method |
| CN112793266A (en) * | 2020-12-29 | 2021-05-14 | 中广核研究院有限公司 | Composite material and preparation method and application thereof |
| US11925698B2 (en) | 2020-07-31 | 2024-03-12 | The Procter & Gamble Company | Water-soluble fibrous pouch containing prills for hair care |
| US11944696B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Detergent product and method for making same |
| US11944693B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Method for delivering an active agent |
| US11951194B2 (en) | 2017-01-27 | 2024-04-09 | The Procter & Gamble Company | Compositions in the form of dissolvable solid structures comprising effervescent agglomerated particles |
| US11970789B2 (en) | 2010-07-02 | 2024-04-30 | The Procter & Gamble Company | Filaments comprising an active agent nonwoven webs and methods for making same |
| US12029799B2 (en) | 2017-05-16 | 2024-07-09 | The Procter & Gamble Company | Conditioning hair care compositions in the form of dissolvable solid structures |
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2008
- 2008-12-09 CN CNA2008102041960A patent/CN101424009A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120052036A1 (en) * | 2010-07-02 | 2012-03-01 | Glenn Jr Robert Wayne | Filaments comprising an active agent nonwoven webs and methods for making same |
| US11944696B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Detergent product and method for making same |
| US11944693B2 (en) | 2010-07-02 | 2024-04-02 | The Procter & Gamble Company | Method for delivering an active agent |
| US11970789B2 (en) | 2010-07-02 | 2024-04-30 | The Procter & Gamble Company | Filaments comprising an active agent nonwoven webs and methods for making same |
| US12194118B2 (en) | 2010-07-02 | 2025-01-14 | The Procter & Gamble Company | Detergent product and method for making same |
| CN105908361A (en) * | 2016-05-18 | 2016-08-31 | 丹东旺盛源无纺布有限公司 | Pulp mixing technology for producing water soluble non-woven fabric through water method |
| US11951194B2 (en) | 2017-01-27 | 2024-04-09 | The Procter & Gamble Company | Compositions in the form of dissolvable solid structures comprising effervescent agglomerated particles |
| US12029799B2 (en) | 2017-05-16 | 2024-07-09 | The Procter & Gamble Company | Conditioning hair care compositions in the form of dissolvable solid structures |
| US11925698B2 (en) | 2020-07-31 | 2024-03-12 | The Procter & Gamble Company | Water-soluble fibrous pouch containing prills for hair care |
| CN112793266A (en) * | 2020-12-29 | 2021-05-14 | 中广核研究院有限公司 | Composite material and preparation method and application thereof |
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