CN105342930B - 一种具有美白功效的片状微胶囊 - Google Patents
一种具有美白功效的片状微胶囊 Download PDFInfo
- Publication number
- CN105342930B CN105342930B CN201510891304.6A CN201510891304A CN105342930B CN 105342930 B CN105342930 B CN 105342930B CN 201510891304 A CN201510891304 A CN 201510891304A CN 105342930 B CN105342930 B CN 105342930B
- Authority
- CN
- China
- Prior art keywords
- parts
- mixed
- solution
- white
- face function
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/733—Alginic acid; Salts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/0254—Platelets; Flakes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/29—Titanium; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4993—Derivatives containing from 2 to 10 oxyalkylene groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/60—Sugars; Derivatives thereof
- A61K8/602—Glycosides, e.g. rutin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/67—Vitamins
- A61K8/678—Tocopherol, i.e. vitamin E
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/731—Cellulose; Quaternized cellulose derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/735—Mucopolysaccharides, e.g. hyaluronic acid; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/02—Preparations for care of the skin for chemically bleaching or whitening the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/56—Compounds, absorbed onto or entrapped into a solid carrier, e.g. encapsulated perfumes, inclusion compounds, sustained release forms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/592—Mixtures of compounds complementing their respective functions
- A61K2800/5922—At least two compounds being classified in the same subclass of A61K8/18
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/60—Particulates further characterized by their structure or composition
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Botany (AREA)
- Microbiology (AREA)
- Mycology (AREA)
- Biotechnology (AREA)
- Dermatology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Cosmetics (AREA)
Abstract
本发明公开一种具有美白功效的片状微胶囊,属于微胶囊技术领域;所述具有美白功效的片状微胶囊,其特征在于,以重量份计,包括如下成分:50~60份海藻酸钠、20~30份琼脂、10~15份羟乙基纤维素、5~8份透明质酸钠、10~15份甘油、1~2份维他命E醋酸酯、1~3份玫瑰精露、1~2份熊果苷、1~4份吐温20、0.1~0.2份红30色淀 CI73360、0.1~0.4份钛白粉、0.5~0.7份苯氧乙醇、0.1~0.4份乙基己基甘油和0.3~0.6份1,2辛二醇。本发明针对具有美白功效成分的特点,经过创造性的实验选择本发明所使用的原料,通过本发明原料的协同配伍作用,使成品具有良好的品质。
Description
技术领域
本发明属于微胶囊技术领域,具体涉及一种具有美白功效的片状微胶囊。
背景技术
消费者日益追求化妆品个人护理品的天然和功效,作为一个日用品不仅仅外观要优美富于吸引力和天然想象力,而且要稳定和有功效。现在市场上添加植物的添加品,例如花瓣水、花瓣着哩、香水等,但是真的植物在化妆品中无论是生产和保存都有很多稳定性的问题:例如生产过程中的植物原料的清洗,有的植物藏有昆虫,虫卵等,是一个很大的污染源,保存过程中植物中的成分浸泡出来导致产品不稳定,颜色退败,花粉容易致敏等问题;很多植物提出的有效成分使用也在化妆品中存在各种稳定性的问题。
现在的微胶囊产品多为圆球状,形状比较单一,没有片状微胶囊,而片状相比于球形的微胶囊更节省空间,能够使化妆品基质在添加了片状微胶囊的同时,还能保证基质的添加量不会受到限制。现有技术并没有制备片状微胶囊的相关研究,究其原因是因为通常凝胶溶液会由于表面张力而收缩成球或不规则的凝胶块,没法使微胶囊原料向四周扩展开,进而没法做成片状或条状的微胶囊,因而存在着一定的缺陷。
发明内容
针对现有技术存在的上述不足,本发明所要解决的技术问题是:如何提供一种具有美白功效的片状微胶囊,打破现有技术中微胶囊产品均为圆球状的常规认识,且具有稳定性好、品质优良的特点,并且具有美白功效。
为了解决上述技术问题,本发明采用如下技术方案:一种具有美白功效的片状微胶囊,以重量份计,包括如下成分:50~60份海藻酸钠、20~30份琼脂、10~15份羟乙基纤维素、5~8份透明质酸钠、10~15份甘油、1~2份维他命E醋酸酯、1~3份玫瑰精露、1~2份熊果苷、1~4份吐温20、0.1~0.2份红30色淀CI73360、0.1~0.4份钛白粉、0.5~0.7份苯氧乙醇、0.1~0.4份乙基己基甘油和0.3~0.6份1,2辛二醇。
相比现有技术,本发明具有如下有益效果:
1、本发明利用海藻酸盐遇到二价金属盐溶液可以生成凝胶的原理来制备薄片形胶囊,但是现有技术中海藻酸溶液遇到二价金属盐溶液的时候会由于表面张力而收缩成球或不规则的凝胶块,因此不能制备成片状微胶囊;基于上述原因,本发明通过研究发现在海藻酸溶液中加入本发明选择的防腐剂或表面活性剂,可以使胶体的表面张力降低,使复配后的原料表面张力低于盐溶液,这些降低表面张力的物质让海藻酸溶液在二价金属盐溶液的表面铺展开,同时和盐溶液反应成类圆片凝胶薄膜,通过盐水的流动让这些凝胶薄膜形状得到变异而到片状微胶囊。
2、由于单一的海藻酸盐凝胶对很多物质不稳定,容易被碱,螯合剂,表面活性剂等溶胀和溶解,所以本发明原料中还复配了其他胶体或高分子材料,通过各原料的协同配伍作用,使本发明片状微胶囊在基料例如着哩,霜乳,沐浴露,香波中更加稳定,性质良好。
3、本发明中各原料之间的协同配伍作用,使本发明片状微胶囊在含有基料中容易软化而变得容易涂抹,肤感更好。
4、本发明针对具有美白功效成分的特点,在考虑制得的产品既能保证稳定性,又能保护美白功效在货架期不会被破坏的情况下,经过创造性的实验选择本发明所使用的原料,通过本发明原料的协同配伍作用,使成品具有良好的品质。
5、本发明方法可以实现完全自动化的大量工业生产,无需人工操作,流程污染少,产品质量高,可控性和重现性好。
具体实施方式
下面结合实施例对本发明作进一步详细说明,本实施例中如无特别说明,所用原料均为市售。
本发明具有美白功效的片状微胶囊采用如下方法制备:
1)将海藻酸钠用纯净水配制成质量浓度为2%的溶液,将琼脂用纯净水配制成质量浓度为1%的溶液,将羟乙基纤维素用纯净水配制成质量浓度为1%的溶液,将透明质酸钠用纯净水配制成质量浓度为1%的溶液;
2)将步骤1)配制的溶液加热到60℃后,混合溶液并保温,备用;
3)将甘油、维他命E醋酸酯、玫瑰精露、熊果苷和吐温20混合均匀;
4)将红30色淀CI73360和钛白粉碾磨混合,并混合入步骤3)混合后的原料中,搅拌均匀;
5)将苯氧乙醇、乙基己基甘油和1,2辛二醇混合加入到步骤4)混合后的料中,得到混合原料;
6)将步骤5)混合原料加热到75℃,并加入步骤2)混合后的溶液中,进行均质,并保持混合物的温度为60~70℃,得均质物备用;
7)将步骤6)均质保温后的均质物用泵输出并滴加到斜面上,所述斜面上流淌有质量浓度为2%的氯化钙溶液,得到具有美白功效的片状微胶囊。
实施例1:
一种具有美白功效的片状微胶囊,成分如下表1所示:
表1成分配方表
成分 | 重量份 | |
A1 | 海藻酸钠 | 50 |
A2 | 琼脂 | 20 |
A3 | 羟乙基纤维素 | 10 |
A4 | 透明质酸钠 | 5 |
B1 | 甘油 | 10 |
B2 | 维他命E醋酸酯 | 1 |
B3 | 玫瑰精露 | 1 |
B4 | 熊果苷 | 1 |
B5 | 吐温20 | 1 |
C1 | 红30色淀CI73360 | 0.1 |
C2 | 钛白粉 | 0.1 |
D1 | 苯氧乙醇 | 0.5 |
D2 | 乙基己基甘油 | 0.1 |
D3 | 1,2辛二醇 | 0.3 |
实施例2:
一种具有美白功效的片状微胶囊,所述成分如下表2所示:
表2具有美白功效的片状微胶囊的成分
一种具有美白功效的片状微胶囊,所述成分如下表3所示:
表3具有美白功效的片状微胶囊的成分
成分 | 重量份 | |
A1 | 海藻酸钠 | 60 |
A2 | 琼脂 | 30 |
A3 | 羟乙基纤维素 | 15 |
A4 | 透明质酸钠 | 8 |
B1 | 甘油 | 15 |
B2 | 维他命E醋酸酯 | 2 |
B3 | 玫瑰精露 | 3 |
B4 | 熊果苷 | 2 |
B5 | 吐温20 | 4 |
C1 | 红30色淀CI73360 | 0.2 |
C2 | 钛白粉 | 0.4 |
D1 | 苯氧乙醇 | 0.7 |
D2 | 乙基己基甘油 | 0.4 |
D3 | 1,2辛二醇 | 0.6 |
最后说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管申请人参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的宗旨和范围的,均应涵盖在本发明的权利要求范围当中。
Claims (1)
1.一种具有美白功效的片状微胶囊,其特征在于,以重量份计,包括如下成分:50~60份海藻酸钠、20~30份琼脂、10~15份羟乙基纤维素、5~8份透明质酸钠、10~15份甘油、1~2份维他命E醋酸酯、1~3份玫瑰精露、1~2份熊果苷、1~4份吐温20、0.1~0.2份红30色淀 CI73360、0.1~0.4份钛白粉、0.5~0.7份苯氧乙醇、0.1~0.4份乙基己基甘油和0.3~0.6份1,2辛二醇;采用如下方法制备:
1)将海藻酸钠用纯净水配制成质量浓度为2%的溶液,将琼脂用纯净水配制成质量浓度为1%的溶液,将羟乙基纤维素用纯净水配制成质量浓度为1%的溶液,将透明质酸钠用纯净水配制成质量浓度为1%的溶液;
2)将步骤1)配制的溶液加热到60℃后,混合溶液并保温,备用;
3)将甘油、维他命E醋酸酯、玫瑰精露、熊果苷和吐温20混合均匀;
4)将红30色淀 CI73360和钛白粉碾磨混合,并混合入步骤3)混合后的原料中,搅拌均匀;
5)将苯氧乙醇、乙基己基甘油和1,2辛二醇混合加入到步骤4)混合后的料中,得到混合原料;
6)将步骤5)混合原料加热到75℃,并加入步骤2)混合后的溶液中,进行均质,并保持混合物的温度为60~70℃,得均质物备用;
7)将步骤6)均质保温后的均质物用泵输出并滴加到斜面上,所述斜面上流淌有质量浓度为2%的氯化钙溶液,得到具有美白功效的片状微胶囊。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510891304.6A CN105342930B (zh) | 2015-11-27 | 2015-11-27 | 一种具有美白功效的片状微胶囊 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510891304.6A CN105342930B (zh) | 2015-11-27 | 2015-11-27 | 一种具有美白功效的片状微胶囊 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105342930A CN105342930A (zh) | 2016-02-24 |
CN105342930B true CN105342930B (zh) | 2018-04-06 |
Family
ID=55319098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510891304.6A Active CN105342930B (zh) | 2015-11-27 | 2015-11-27 | 一种具有美白功效的片状微胶囊 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105342930B (zh) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6391288B1 (en) * | 1999-07-27 | 2002-05-21 | Shiseido Co., Ltd. | Microcapsule and method of making the same |
CN104490615A (zh) * | 2014-12-16 | 2015-04-08 | 重庆小丸科贸有限公司 | 一种具有细致毛孔功效的水凝胶微胶囊 |
-
2015
- 2015-11-27 CN CN201510891304.6A patent/CN105342930B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6391288B1 (en) * | 1999-07-27 | 2002-05-21 | Shiseido Co., Ltd. | Microcapsule and method of making the same |
CN104490615A (zh) * | 2014-12-16 | 2015-04-08 | 重庆小丸科贸有限公司 | 一种具有细致毛孔功效的水凝胶微胶囊 |
Non-Patent Citations (1)
Title |
---|
锐孔法制备微胶囊技术研究;王显伦;《郑州粮食学院学报》;19951231;第16卷(第4期);第21-26页 * |
Also Published As
Publication number | Publication date |
---|---|
CN105342930A (zh) | 2016-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105395373B (zh) | 一种片状微胶囊 | |
CN105395378B (zh) | 一种含有清凉配方的片状微胶囊 | |
CN103830155B (zh) | 一种温和洗面奶 | |
CN109998973A (zh) | 一种滋润柔肤沐浴露及其制备方法 | |
CN107550795A (zh) | 滋养修复、乌发防脱油茶果洗发液及其制备方法 | |
CN106109437B (zh) | 一种成膜组合物、基于其制备的软、硬胶囊及制备方法 | |
CN105342930B (zh) | 一种具有美白功效的片状微胶囊 | |
CN108354848A (zh) | 一种葡萄酒酒泥面膜及其制备方法 | |
CN105380821B (zh) | 一种具有抗衰老功效的结冷胶片状微胶囊 | |
CN105310894A (zh) | 一种微胶囊型的抗皱眼霜 | |
CN105326721B (zh) | 一种含有金盏花提取物的片状微胶囊 | |
CN105395374B (zh) | 一种结冷胶片状微胶囊 | |
CN105326715B (zh) | 一种带有片状微胶囊的保湿抗皱面霜 | |
CN104644611A (zh) | 一种微胶囊制备方法 | |
JP4374362B2 (ja) | パック用ソルト,及びそれを用いたパック剤 | |
CN105213267A (zh) | 一种微胶囊型抗皱眼霜的制备方法 | |
CN104306351B (zh) | 醇溶蛋白硬胶囊及制备方法 | |
CN112120985A (zh) | 一种控油洗面奶及其制备方法 | |
CN109875912A (zh) | 一种化妆品用水凝胶小球体及其制备方法 | |
CN109370445A (zh) | 一种工业明胶漂白防黄变剂及其应用 | |
WO2015033331A1 (en) | Hard capsule from seaweed and the manufacturing technology thereof | |
CN104490612B (zh) | 一种水凝胶微胶囊型香水 | |
CN101194884A (zh) | 生发育发剂 | |
JP6737863B2 (ja) | 天然植物配合のクレンジングペーパーの製造方法 | |
TWM649194U (zh) | 狐尾粟精粹的複合微粒結構 |
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 | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 401519 Chongqing Hechuan Industrial Park weir village two Patentee after: Chongqing Xiaowan Biotechnology Co., Ltd. Address before: 401519 Chongqing Hechuan Industrial Park weir village two Patentee before: CHONGQING XIAOWAN TRADE CO., LTD. |