CN105586676A - 一种木棉和聚乳酸的混合纺纱工艺 - Google Patents
一种木棉和聚乳酸的混合纺纱工艺 Download PDFInfo
- Publication number
- CN105586676A CN105586676A CN201610006480.1A CN201610006480A CN105586676A CN 105586676 A CN105586676 A CN 105586676A CN 201610006480 A CN201610006480 A CN 201610006480A CN 105586676 A CN105586676 A CN 105586676A
- Authority
- CN
- China
- Prior art keywords
- kapok
- fibers
- spinning
- bombax cotton
- polylactic acid
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 30
- 235000003301 Ceiba pentandra Nutrition 0.000 title claims abstract description 23
- 244000146553 Ceiba pentandra Species 0.000 title claims abstract description 23
- 229920000747 poly(lactic acid) Polymers 0.000 title abstract 5
- 239000004626 polylactic acid Substances 0.000 title abstract 5
- 239000000835 fiber Substances 0.000 claims abstract description 36
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 10
- 239000004310 lactic acid Substances 0.000 claims abstract description 10
- 239000004970 Chain extender Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 14
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 2
- 239000004606 Fillers/Extenders Substances 0.000 claims 1
- 229920002472 Starch Polymers 0.000 abstract description 8
- 239000008107 starch Substances 0.000 abstract description 8
- 235000019698 starch Nutrition 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 229920000642 polymer Polymers 0.000 abstract 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 11
- -1 azelon Substances 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 229920006221 acetate fiber Polymers 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000219071 Malvaceae Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- 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
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
-
- 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
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/11—Starch or derivatives thereof
-
- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/507—Polyesters
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
本发明提供了一种木棉和聚乳酸的混合纺纱工艺，包括如下步骤，将助剂喷洒在木棉纤维上，在温度为60～80℃的环境中，平衡10～20小时，使助剂混合液在木棉纤维表面干燥并反应，即可获得预处理后的木棉纤维。所述助剂由30～50份乳酸低聚物，10～20份淀粉，0.1～2份扩链剂和28～59.9份水构成。将上述处理后的木棉纤维与聚乳酸纤维均匀混合，通过多道纺纱工艺，得到木棉和聚乳酸的复合面料。本发明解决了木棉纤维可纺性差的问题，利用淀粉在木棉纤维表面形成更多毛刺，增加抱合力，利用聚乳酸低聚物以及扩链剂等组分，使得木棉纤维和聚乳酸纤维表面充分反应，进一步增加纤维间粘连强度。
Description
技术领域：
本发明属于纺织领域，尤其涉及一种木棉和聚乳酸的混合纺纱工艺。
背景技术
众所周知，木棉纤维具有独特的薄壁中空结构和轻质拒水吸油的特性，木棉纤维具有非常好的抑菌祛螨性和出色的保暖性能。木棉纤维纵向外观呈圆柱状，表面光滑，转曲少，光泽好，因此木棉纤维较为柔软，但是强力差，回弹性不足。长期以来，木棉纤维由于长度短、抱合力差(表面光滑)、弹性不好、蓬松易飞扬，难以独立纺纱，导致其在纺织方面的应用具有很大的局限性。
很多厂家采用木棉和其他纤维的混纺来增加木棉纤维的可纺性，例如木棉和晴纶、铜氨纤维、棉纤维、醋酸纤维、竹纤维、蛋白纤维、丙纶乃至蚕丝等。然而，很多厂家仅仅简单将几种纤维混合在一起，就想获得品质稳定的混合成纱，缺乏相应的技术支撑。
发明专利《一种棉纤维、竹纤维和木棉纤维的混纺纱201310189047.2》给出了一种三种纤维混合纺纱的技术方案，单纯的提到三种组分混合，没有给出任何技术上的创新和说明。类似的专利还有《一种棉纤维、木棉纤维和醋酸纤维的混纺纱201310189256.7》等等。
对木棉纤维的可纺性做出技术创新和说明的专利，包括发明专利《木棉纤维预处理方法201110121173.5》给出了一种利用硅油、毛油灯对木棉纤维进行预处理以提高可纺性的技术方案，主要目的在于对木棉纤维的表面进行糙化处理，增加抱合力。类似的专利还包括《增摩增重剂及其制备和在改善木棉纤维纺纱性能的应用20111015417.2》
发明专利《木棉纤维在纺纱、纺织领域的制造方法及其应用200610078141.0》中给出了利用丙烯酸酯、淀粉、聚乙烯醇和水的混合液来喷淋进行表面糙化、定型的工艺，该工艺旨在使木棉纤维表面形成毛刺，增加抱合力来增强可纺性，并不能进一步的增加不同纤维混纺时的粘黏性和强度。
上述专利大多引入了非天然纤维或化学组分，使得木棉纤维的绿色环保特性无法最大限度地体现。
发明内容
本方面专利的目的在于克服上述缺陷，提供一种木棉和聚乳酸的混合纺纱工艺。
本发明的目的是通过以下技术方案实现的：
一种木棉和聚乳酸的混合纺纱工艺，包括如下步骤，将助剂喷洒在木棉纤维上，在温度为60～80℃的环境中，平衡10～20小时，使助剂混合液在木棉纤维表面干燥并反应，得到预处理后的木棉纤维，将所述预处理后的木棉纤维和聚乳酸纤维均匀混合，经过梳棉、并条、纺纱等步骤得到成纱。
将所述成纱送入烘箱放在80～100℃温度下进行纱支定型处理，使助剂充分反应，增加纤维间结合力。
进一步的，所述助剂由以下组分构成：
所述乳酸低聚物分子量为500～5000，所述扩链剂为ADR环氧基扩链剂，所述聚乳酸纤维为直径1.2D～4D，长度20～100mm的短纤维。
作为优选的，所述淀粉为低粘度变性淀粉，所述乳酸低聚物在常温或者60～80℃温度下为液态。
作为说明的，本发明利用乳酸低聚物作为木棉纤维和聚乳酸纤维之间粘连性的反应组分，添加高效的扩链剂来促进反应发生，极大的加强纤维间的结合力；进一步的，通过低粘度变性淀粉来进一步增加纤维表面毛刺，增加抱合力。
本发明的优点在于引入的乳酸低聚物同属聚乳酸，通过淀粉增加纤维表面毛刺，增加抱合力，通过乳酸低聚物与木棉纤维和聚乳酸纤维的双向反应，增加同种纤维以及不同纤维之间的结合力，使得成纱表面致密细腻，成纱质地好，强度高，具有很高的应用推广价值。该工艺完全采用绿色环保纤维，生产过程安全环保，成品可完全降解。
具体实施方式
下面对本发明的优选实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。
实施例1
一种木棉和聚乳酸的混合纺纱工艺，包括如下步骤：
按照下述比例配置助剂：乳酸低聚物30份，淀粉10份，扩链剂0.1份，水59.9份。
在60℃环境下，将助剂喷洒在木棉纤维表面，平衡10小时，使之充分反应，得到预处理的木棉纤维。
将通过预处理的木棉纤维和聚乳酸纤维均匀混合，经过梳棉、并条、纺纱等步骤得到成纱。
将所述成纱送入烘箱在80℃下进行纱支定型处理，使助剂充分反应，增加纤维间结合力。
结果：纺纱过程较为顺利，成纱品质较好，强度较高。
实施例2
一种木棉和聚乳酸的混合纺纱工艺，包括如下步骤：
按照下述比例配置助剂：乳酸低聚物50份，淀粉20份，扩链剂2份，水28份。
在80℃环境下，将助剂喷洒在木棉纤维表面，平衡20小时，使之充分反应，得到预处理的木棉纤维。
将通过预处理的木棉纤维和聚乳酸纤维均匀混合，经过梳棉、并条、纺纱等步骤得到成纱。
将所述成纱送入烘箱在100℃下进行纱支定型处理，使助剂充分反应，增加纤维间结合力。
结果：纺纱过程顺利，纱支细腻，手感较好，成纱强度高。
Claims (4)
1.一种木棉和聚乳酸的混合纺纱工艺，包括如下步骤，将助剂喷洒在木棉纤维上，在温度为60～80℃的环境中，平衡10～20小时，使助剂混合液在木棉纤维表面干燥并反应，得到预处理后的木棉纤维，将所述预处理后的木棉纤维和聚乳酸纤维充分混合，经过梳棉并条纺纱等步骤得到成纱，所述助剂由以下组分构成：
2.根据权利要求1所述的一种木棉和聚乳酸的混合纺纱工艺，其特征在于，所述乳酸低聚物分子量为500～5000。
3.根据权利要求1所述的一种木棉和聚乳酸的混合纺纱工艺，其特征在于，所述扩链剂为ADR环氧基扩链剂。
4.根据权利要求1所述的一种木棉和聚乳酸的混合纺纱工艺，其特征在于，所述聚乳酸纤维为直径1.2D～4D，长度20～100mm的短纤维。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006480.1A CN105586676B (zh) | 2016-01-04 | 2016-01-04 | 一种木棉和聚乳酸的混合纺纱工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006480.1A CN105586676B (zh) | 2016-01-04 | 2016-01-04 | 一种木棉和聚乳酸的混合纺纱工艺 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105586676A true CN105586676A (zh) | 2016-05-18 |
| CN105586676B CN105586676B (zh) | 2018-01-26 |
Family
ID=55926568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610006480.1A Active CN105586676B (zh) | 2016-01-04 | 2016-01-04 | 一种木棉和聚乳酸的混合纺纱工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105586676B (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747549A (zh) * | 2019-11-14 | 2020-02-04 | 蚌埠民丰纺织有限责任公司 | 一种聚乳酸与天丝混纺纱线及纺纱方法 |
| CN115029828A (zh) * | 2021-03-03 | 2022-09-09 | 盐城双山华峰纺织有限公司 | 一种聚乳酸纤维与棉纤维的混合纱线纺纱工艺 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082900A (ja) * | 2003-09-04 | 2005-03-31 | Unitika Textiles Ltd | 衣料用繊維布帛の製造方法 |
| CN1990946A (zh) * | 2005-12-31 | 2007-07-04 | 戴建荣 | 木棉纤维在纺纱、纺织领域的制造方法及应用 |
| CN101509175A (zh) * | 2009-01-12 | 2009-08-19 | 嘉兴学院 | 一种绿色可完全降解型保暖材料及其生产方法 |
| CN102586974A (zh) * | 2012-03-16 | 2012-07-18 | 江阴市润兴纺织有限公司 | 一种木棉纺纱加工方法 |
| CN103266375A (zh) * | 2013-06-05 | 2013-08-28 | 南通纺织职业技术学院 | 一种木棉纤维纱线的加工方法 |
-
2016
- 2016-01-04 CN CN201610006480.1A patent/CN105586676B/zh active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082900A (ja) * | 2003-09-04 | 2005-03-31 | Unitika Textiles Ltd | 衣料用繊維布帛の製造方法 |
| CN1990946A (zh) * | 2005-12-31 | 2007-07-04 | 戴建荣 | 木棉纤维在纺纱、纺织领域的制造方法及应用 |
| CN101509175A (zh) * | 2009-01-12 | 2009-08-19 | 嘉兴学院 | 一种绿色可完全降解型保暖材料及其生产方法 |
| CN102586974A (zh) * | 2012-03-16 | 2012-07-18 | 江阴市润兴纺织有限公司 | 一种木棉纺纱加工方法 |
| CN103266375A (zh) * | 2013-06-05 | 2013-08-28 | 南通纺织职业技术学院 | 一种木棉纤维纱线的加工方法 |
Non-Patent Citations (1)
| Title |
|---|
| 黄进等: "《生物质化工与生物质材料》", 31 August 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747549A (zh) * | 2019-11-14 | 2020-02-04 | 蚌埠民丰纺织有限责任公司 | 一种聚乳酸与天丝混纺纱线及纺纱方法 |
| CN115029828A (zh) * | 2021-03-03 | 2022-09-09 | 盐城双山华峰纺织有限公司 | 一种聚乳酸纤维与棉纤维的混合纱线纺纱工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105586676B (zh) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Khatri et al. | Cold pad-batch dyeing of cellulose nanofibers with reactive dyes | |
| CN104499294B (zh) | 一种具有抗静电、抗菌和亲水性涤纶织物的整理方法 | |
| CN109023621B (zh) | 一种阻燃性抗菌羊毛混纺线 | |
| CN110344131B (zh) | 一种丝胶蛋白改性再生纤维素纤维及其制备方法 | |
| CN104032572B (zh) | 一种海藻酸钠对涤纶纤维的亲水改性方法 | |
| CN105002592B (zh) | 一种醋腈纤维及其制备方法 | |
| CN106012216B (zh) | 一种芳纶布及其浸胶工艺 | |
| CN108691024A (zh) | 含植物提取物的改性腈纶纤维及其制备方法 | |
| Khatri et al. | Pad dyeing of cellulose acetate nanofibres with disperse dyes | |
| CN105350299B (zh) | 一种自动调温透气型户外运动衣面料及其制备方法 | |
| CN102839466A (zh) | 一种腈纶、亚麻纤维和牛奶蛋白纤维混纺纱 | |
| CN112391843B (zh) | 一种改性竹纤维、抗菌抗皱复合纱线及其制备方法 | |
| CN103103809A (zh) | 绿色环保纤维混纺面料 | |
| CN111334880B (zh) | 光致变色莱赛尔纤维及其制备方法 | |
| CN104278379B (zh) | 一种玻璃纤维增强涤纶复合长丝及其制备方法 | |
| CN107687040B (zh) | 一种抗菌柔软混纺纱线 | |
| CN105586676A (zh) | 一种木棉和聚乳酸的混合纺纱工艺 | |
| CN103015225A (zh) | 一种牛奶纤维棉混纺织物的染色方法 | |
| Zhang et al. | Hydrophobic surface modification of ramie fibers by plasma-induced addition polymerization of propylene | |
| CN110512339A (zh) | 一种抗菌抑菌床上用品面料的制备方法 | |
| CN114045673A (zh) | 一种抗菌涤纶混纤弹性丝及其制备方法 | |
| CN105231502A (zh) | 一种新型内衣用抗菌面料 | |
| Khatri et al. | Dyeing of electrospun nanofibers | |
| CN103790013A (zh) | 一种兔毛织物防掉毛方法 | |
| CN108330693A (zh) | 高阻燃涤纶纤维及其制备方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311100 Room 237, Building 20, Longtan Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Aiduo Biotechnology Co., Ltd. Address before: 311121 Haichuang Park, No. 998 Wenyi West Road, Yuhang District, Hangzhou City, Zhejiang Province, 19 606A blocks Patentee before: HANGZHOU AIDUOBEI TEXTILE CO., LTD. |