CN114775195A - 一种超细纤维聚氨酯水性溶解开纤方法 - Google Patents
一种超细纤维聚氨酯水性溶解开纤方法 Download PDFInfo
- Publication number
- CN114775195A CN114775195A CN202210501321.4A CN202210501321A CN114775195A CN 114775195 A CN114775195 A CN 114775195A CN 202210501321 A CN202210501321 A CN 202210501321A CN 114775195 A CN114775195 A CN 114775195A
- Authority
- CN
- China
- Prior art keywords
- fiber
- woven fabric
- polyester fiber
- polyurethane
- alkali liquor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 72
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 27
- 239000004814 polyurethane Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004090 dissolution Methods 0.000 title claims abstract description 6
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 35
- 229920000728 polyester Polymers 0.000 claims abstract description 24
- 239000003513 alkali Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 238000007598 dipping method Methods 0.000 claims abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 229920001410 Microfiber Polymers 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 239000003658 microfiber Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 4
- 239000004702 low-density polyethylene Substances 0.000 claims description 4
- 229920006306 polyurethane fiber Polymers 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims 3
- 239000000243 solution Substances 0.000 claims 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 238000003892 spreading Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- 239000010985 leather Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000004750 melt-blown nonwoven Substances 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000001878 scanning electron micrograph Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
本发明公开了一种超细纤维聚氨酯水性溶解开纤方法,包括以下步骤:步骤一、将聚酯纤维非织造布放入低浓度碱液中浸渍;步骤二、对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理;步骤三、将步骤二处理完毕的聚酯纤维非织造布取出进行充分水洗去除碱液后烘干得到水性聚氨酯超细纤维。本发明采用超声波处理在低浓度碱液中浸渍的聚酯纤维非织造布使其开纤,得到水性聚氨酯超细纤维,工艺条件温和,减少对岛纤维的损害,增强纤维强度,且大大提升了开纤效果;同时全过程未使用溶剂,生产过程安全,无污染;本发明工艺简单、成本低,采用该技术生产的水性聚氨酯超细纤维可以很好的应用于汽车内饰。
Description
技术领域
本发明属于超细纤维聚氨酯开纤技术领域,具体涉及一种超细纤维聚氨酯水性溶解开纤方法。
背景技术
天然皮革资源有限,生产过程会产生较大的污染,具有优良性能的仿真合成革的开发成为人类的追求。超纤革具有极其优异的耐磨、耐寒、透气、耐老化性能。为了使超纤革具有天然皮革的微孔结构,将高密度超细纤维非织造布浸渍于聚氨酯溶液中,再采用湿法凝固使聚氨酯于三维网状组织中形成具有无数微孔的连续弹性体,再采用开纤工艺从而得到超细纤维。然而含浸所用的树脂几乎全部为溶剂型聚氨酯,但大量有机溶剂的使用也造成环境污染及资源浪费,随着一系列国家环保法律法规的实施,溶剂型聚氨酯将逐步退出在超纤革中的应用。水性聚氨酯树脂是以水为分散介质的,具有环境友好、无溶剂排放等优点,因此基于水性聚氨酯超纤革是大势所趋。目前减量技术主要是为甲苯减量和碱减量。甲苯减量生产过程产生大量溶剂,对环境危害大,目前技术的碱减量对纤维结构造成破坏使其力学性能降低且效率较低。
发明内容
针对现有技术存在的不足,本发明的目的在于提供一种超细纤维聚氨酯水性溶解开纤方法,降低纤维损伤、提升开纤率,且环境友好、无污染。
为了实现上述目的,本发明采用以下技术方案予以实现:
一种超细纤维聚氨酯水性溶解开纤方法,包括以下步骤:
步骤一、将聚酯纤维非织造布放入浓度为0.6g/L~0.8g/L的NaOH溶液中浸渍30min~40min;
步骤二、开启超声波设备对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理,超声波功率为100W~150W,处理时间为30min~40min;
步骤三、将步骤二处理完毕的聚酯纤维非织造布取出进行清洗、车轧,然后在80℃条件下烘干10min~15min得到水性聚氨酯超细纤维。
本发明还具有以下技术特征:
优选的,步骤一中所述的聚酯纤维非织造布为COPET/PA6海岛纤维、PET/PA熔喷非织造布或LDPE/PA6非织造布中的任意一种。
优选的,步骤一中聚酯纤维非织造布与碱液的浴比为1:100。
优选的,步骤一中所述的浸渍温度为25℃~30℃。
优选的,步骤二中所述的超声波设备为超声波清洗机或超声波震板。
优选的,步骤三中所述的清洗、车轧为用清水冲洗,并用轧车轧3~4次去除碱液。
本发明与现有技术相比,具有如下技术效果:
本发明采用超声波处理在低浓度碱液中浸渍的聚酯纤维非织造布使其开纤,得到水性聚氨酯超细纤维,工艺条件温和,减少对岛纤维的损害,增强纤维强度,且大大提升了开纤效果;同时全过程未使用溶剂,生产过程安全,无污染;
本发明工艺简单、成本低,采用该技术生产的水性聚氨酯超细纤维可以很好的应用于汽车内饰。
附图说明
图1为实施例1的超声波处理后的双组分熔喷非织造布的SEM图;
图2为对比例1的超声波处理后的双组分熔喷非织造布的SEM图;
图3为对比例2的双组分熔喷非织造布的SEM图。
具体实施方式
以下结合实施例对本发明的具体内容做进一步详细解释说明。
实施例1:
步骤一、将COPET/PA6复合纺丝的海岛型纤维非织造布放入浓度为0.6g/L的NaOH溶液中,浴比1:100,调节温度至25℃,浸渍30min;
步骤二、开启超声波设备对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理,超声波功率为100W,处理时间为30min;该设备选用SCSF-B超声波清洗机(上海昆山超声波有限公司);
步骤三、将处理完毕的聚酯纤维非织造布取出进行充分水洗并用轧车轧3~4次去除碱液,然后在80℃条件下烘干15min得到水性聚氨酯超细纤维。
实施例2:
步骤一、将PET/PA熔喷非织造布放入浓度为0.7g/L的NaOH溶液中,浴比1:100,调节温度至28℃,浸渍35min;
步骤二、开启超声波设备对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理,超声波功率为130W,处理时间为35min;超声波设备为超声波震板;
步骤三、将处理完毕的聚酯纤维非织造布取出进行充分水洗并用轧车轧3~4次去除碱液,然后在80℃条件下烘干13min得到水性聚氨酯超细纤维。
实施例3:
步骤一、将低密度聚乙烯(LDPE)/PA6非织造布放入浓度为0.8g/L的NaOH溶液中,浴比1:100,调节温度至30℃,浸渍40min;
步骤二、开启超声波设备对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理,超声波功率为150W,处理时间为40min;超声波设备为超声波震板;
步骤三、将处理完毕的聚酯纤维非织造布取出进行充分水洗并用轧车轧3~4次去除碱液,然后在80℃条件下烘干15min得到水性聚氨酯超细纤维。
对比例1:
步骤一、将COPET/PA6复合纺丝的海岛型纤维非织造布剪切成的小块,放入浓度为4g/L的NaOH溶液中,浴比1:100,调节温度至65℃,浸渍30min;
步骤二、将处理完毕的聚酯纤维非织造布取出进行充分水洗去除碱液后烘干得到水性聚氨酯超细纤维。
对比例2:
COPET/PA6复合纺丝的海岛型纤维非织造布不进行任何处理。
对实施例1、对比例1和对比例2的产品进行分析,计算开纤处理前后的减量率,并采用LLY-06型电子单纤维强力机进行断裂伸长率测试,发现实施例1的减量率、断裂伸长率都没有发生明显变化,说明超声波开纤技术对纤维的损伤不明显;
实施例1、对比例1的水性聚氨酯超细纤维和对比例2的未经过处理的COPET/PA6复合纺丝的海岛型纤维非织造布SEM图如图1至图3所示,由图1至图3可见,经过超声波处理的非织造布的纤维未受到损害,且开纤效果明显,而经过高浓度碱液处理的非织造布纤维有明显损伤。
参照上述实施例对本发明进行了详细说明,所属领域的普通技术人员在未脱离本发明精神和范围内对本发明技术方案所做出的任何修改或者等同替换,其均应涵盖在本发明权利要求保护范围当中。
Claims (6)
1.一种超细纤维聚氨酯水性溶解开纤方法,其特征在于,包括以下步骤:
步骤一、将聚酯纤维非织造布放入浓度为0.6g/L~0.8g/L的NaOH溶液中浸渍30min~40min;
步骤二、开启超声波设备对步骤一中浸入碱液的聚酯纤维非织造布进行超声处理,超声波功率为100W~150W,处理时间为30min~40min;
步骤三、将步骤二处理完毕的聚酯纤维非织造布取出进行清洗、车轧,然后在80℃条件下烘干10min~15min得到水性聚氨酯超细纤维。
2.如权利要求1所述的超细纤维聚氨酯水性溶解开纤方法,其特征在于,步骤一中所述的聚酯纤维非织造布为COPET/PA6海岛纤维、PET/PA熔喷非织造布或LDPE/PA6非织造布中的任意一种。
3.如权利要求1所述的超细纤维聚氨酯水性溶解开纤方法,其特征在于,步骤一中聚酯纤维非织造布与碱液的浴比为1:100。
4.如权利要求1所述的超细纤维聚氨酯水性溶解开纤方法,其特征在于,步骤一中所述的浸渍温度为25℃~30℃。
5.如权利要求1所述的超细纤维聚氨酯水性溶解开纤方法,其特征在于,步骤二中所述的超声波设备为超声波清洗机或超声波震板。
6.如权利要求1所述的超细纤维聚氨酯水性溶解开纤方法,其特征在于,步骤三中所述的清洗、车轧为用清水冲洗,并用轧车轧3~4次去除碱液。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210501321.4A CN114775195A (zh) | 2022-05-10 | 2022-05-10 | 一种超细纤维聚氨酯水性溶解开纤方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210501321.4A CN114775195A (zh) | 2022-05-10 | 2022-05-10 | 一种超细纤维聚氨酯水性溶解开纤方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114775195A true CN114775195A (zh) | 2022-07-22 |
Family
ID=82437113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210501321.4A Pending CN114775195A (zh) | 2022-05-10 | 2022-05-10 | 一种超细纤维聚氨酯水性溶解开纤方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114775195A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030046109A (ko) * | 2001-12-05 | 2003-06-12 | 한국섬유개발연구원 | 초음파를 이용한 폴리에스테르 섬유의 알칼리 감량방법 |
CN105256602A (zh) * | 2015-11-10 | 2016-01-20 | 陕西科技大学 | 一种水性聚氨酯超细纤维合成革的制造方法 |
CN106192449A (zh) * | 2016-08-17 | 2016-12-07 | 福建鑫发无纺布有限责任公司 | 一种全水性环保超细纤维皮革制作方法 |
CN111041850A (zh) * | 2019-12-04 | 2020-04-21 | 杭州传化精细化工有限公司 | 一种水性超细纤维合成革的制备方法 |
CN112553915A (zh) * | 2020-11-12 | 2021-03-26 | 浙江吉利控股集团有限公司 | 一种超纤革的制备方法及超纤革 |
CN112779765A (zh) * | 2020-12-31 | 2021-05-11 | 宁波三邦超细纤维有限公司 | 阻燃微米丝复合超细纤维及其制备方法 |
CN112796004A (zh) * | 2020-12-31 | 2021-05-14 | 宁波三邦超细纤维有限公司 | 微米丝复合超细纤维及其制备方法 |
-
2022
- 2022-05-10 CN CN202210501321.4A patent/CN114775195A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030046109A (ko) * | 2001-12-05 | 2003-06-12 | 한국섬유개발연구원 | 초음파를 이용한 폴리에스테르 섬유의 알칼리 감량방법 |
CN105256602A (zh) * | 2015-11-10 | 2016-01-20 | 陕西科技大学 | 一种水性聚氨酯超细纤维合成革的制造方法 |
CN106192449A (zh) * | 2016-08-17 | 2016-12-07 | 福建鑫发无纺布有限责任公司 | 一种全水性环保超细纤维皮革制作方法 |
CN111041850A (zh) * | 2019-12-04 | 2020-04-21 | 杭州传化精细化工有限公司 | 一种水性超细纤维合成革的制备方法 |
CN112553915A (zh) * | 2020-11-12 | 2021-03-26 | 浙江吉利控股集团有限公司 | 一种超纤革的制备方法及超纤革 |
CN112779765A (zh) * | 2020-12-31 | 2021-05-11 | 宁波三邦超细纤维有限公司 | 阻燃微米丝复合超细纤维及其制备方法 |
CN112796004A (zh) * | 2020-12-31 | 2021-05-14 | 宁波三邦超细纤维有限公司 | 微米丝复合超细纤维及其制备方法 |
Non-Patent Citations (1)
Title |
---|
潘先苗;: "超声波在PET/PA熔喷非织造布开纤上的研究", 天津纺织科技, no. 02, pages 17 - 22 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104118178B (zh) | 一种pps超细纤维复合滤料的制备方法 | |
CN111041850B (zh) | 一种水性超细纤维合成革的制备方法 | |
CN105002720A (zh) | 一种棉纤维织物的环保型染整工艺 | |
CN103469588A (zh) | 剑麻纤维表面上浆剂及剑麻纤维复合材料的制备方法 | |
CN105442340A (zh) | 高速列车座椅用高阻燃超细纤维合成革及其制备方法 | |
CN111254552B (zh) | 一种棉毛混纺纱面料及其制备方法 | |
CN111041859A (zh) | 一种高色牢度的涤纶超纤染色方法 | |
CN114775195A (zh) | 一种超细纤维聚氨酯水性溶解开纤方法 | |
CN115287914A (zh) | 生物基超纤革及其加工方法 | |
CN104005225A (zh) | 一种减少lyocell纤维素纤维原纤化倾向的方法 | |
CN110952320A (zh) | 阻燃纤维素短纤维的连续式加工方法和获得的阻燃纤维素短纤维 | |
CN114395916A (zh) | 一种抗原纤化纤维素纤维及其制备方法 | |
CN104088131B (zh) | 一种绝缘芳纶材料及其制备方法 | |
CN101974848A (zh) | 一种纤维素基离子交换纤维的制备方法 | |
CN105696387B (zh) | 提高木棉纤维染色性能的染整方法及染色木棉纤维 | |
EP3176317B1 (en) | Method for manufacturing linen fiber for spinning, and linen fiber for spinning | |
CN115233335B (zh) | 一种柔性液态金属/海藻复合纤维及其制备方法 | |
CN107503163B (zh) | 一种具有防水功能的超细纤维绒面人造皮革及其制造方法 | |
CN110541238A (zh) | 一种无纺精干麻针刺毡制造方法 | |
CN102587130B (zh) | 耐久型纳米防水防污粗纺面料的处理方法 | |
CN106702757B (zh) | 聚氨酯超细纤维合成革制备过程中的水性浸渍树脂及应用 | |
CN109082895B (zh) | 一种超细纤维绒面人造皮革及制备方法 | |
CN111979587B (zh) | 一种复合导电面料的制造方法 | |
CN103103667B (zh) | 一种防水帆布用混合纤维的纺丝工艺 | |
CN103938430A (zh) | 一种回复木棉纤维中空度的纺织品后加工方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220722 |