CN102429331B - Manufacturing technique for aqueous PU (Polyurethane) glove - Google Patents
Manufacturing technique for aqueous PU (Polyurethane) glove Download PDFInfo
- Publication number
- CN102429331B CN102429331B CN2011103901434A CN201110390143A CN102429331B CN 102429331 B CN102429331 B CN 102429331B CN 2011103901434 A CN2011103901434 A CN 2011103901434A CN 201110390143 A CN201110390143 A CN 201110390143A CN 102429331 B CN102429331 B CN 102429331B
- Authority
- CN
- China
- Prior art keywords
- gloves
- coating
- slurry
- water
- glove
- 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
Abstract
The invention discloses a manufacturing technique for aqueous PU (Polyurethane) glove, comprising the following steps: S1, covering a glove core soaked with coagulating agent on a hand module or directly covering a dried glove core on the hand module and then wetting the glove core by the coagulating agent; S2, soaking the glove core covered on the hand mould in the PU slurry so that a PU coating is formed on the surface of the glove, wherein the PU slurry is the aqueous polyurethane resin or mixing slurry prepared by 97%-99.9% of aqueous polyurethane resin and 0.1%-3% of aqueous thickener; and S3, drying or air drying the glove forming the PU coating. The manufacturing technique adopts the aqueous polyurethane resin (aqueous PU resin) without adding any chemical solvent; the aqueous PU glove is non-toxic; the technique is simple; the time for soaking PU coating is shorter; and the manufacturing efficiency is improved.
Description
Technical field
The present invention relates to a kind of production method of PU gloves, especially a kind of production method that forms one deck water-based PU coating at the gloves wicking surface.
Background technology
Gloves are widely used in the live and work as hand protection instrument.With the gloves core is base material dipping PU (Polyurethane polyurethane; Abbreviation polyurethane) the security protection gloves of resin; With its rubber shoe latex layer approach, wear with comfortable, have grease proofing preferably, anti-wear performance, a low cost and other advantages; Become in the safety gloves of international market staple product, sales volume constantly rises in recent years.But produce this kind PU dipping gloves, need to use the production technology of dimethyl formamide (DMF), but DMF has higher toxicity as solvent, residual as DMF is arranged in the gloves, dress the back Diazolidinyl Urea; Simultaneously, because of using DMF, will impact aborning the enterprise employee health protection as solvent; Gloves scrap abandon after, also can cause great pollution to environment.Because PU dipping gloves use DMF to have above shortcoming, European Union is assert, since in May, 2009, bans use of the product as solvent with DMF, comprises the gloves product, and this will bring tremendous influence to gloves plant produced, outlet.China is limited on the ability of the recycling of discarded object, to limited especially on the rate of recovery of DMF, not only pollutes the thing discharging, can not effectively reduce production costs.
File 1: publication number is CN101849719A, and open day is the application for a patent for invention " adopting the process for producing knitted and dipped PU (polyurethane) gloves of methyl pyrrolidone " on October 6th, 2010, and it has substituted poisonous DMF with methyl pyrrolidone in process of production; File 2: publication number is CN101849717A, and open day is the application for a patent for invention " adopting the process for producing knitted and dipped PU (polyurethane) gloves of dimethyl sulfoxide (DMSO) " on October 6th, 2010, and it has substituted poisonous DMF with dimethyl sulfoxide (DMSO) in process of production; File 3: publication number is CN101828780A, and open day is the application for a patent for invention " process for producing aqueous PU foam gloves " on September 15th, 2010, and it has added NBR in PU natural gum.
In above-mentioned three pieces of invention disclosed patent application documents, the technical scheme of file 1 is in the PU slurry, to have added methyl pyrrolidone, contains alkyl in the methyl pyrrolidone molecule, has the taste of amine; Stronger permeability is arranged, and it was put aside toxicity or carcinogenic possibility was arranged through Europe and the U.S.'s recent studies on recent years.The technical scheme of file 2 is in the PU slurry, to add dimethyl sulfoxide (DMSO), and dimethyl sulfoxide (DMSO) has the very easily special nature of skin permeation as chemical substance, causes the user of service to feel the taste as the oyster, and eyes are had spread effect.The technical scheme of file 3 is that what in the PU slurry, to be added is NBR, and NBR has spread effect to eyes and skin, and the medium poison of toxicity type contains this type material and also can work the mischief and environment is polluted personnel in the gloves.
Can find out by above-mentioned three disclosed technical schemes of file, except the virose chemical substance of employing ability in the production technology, and the technology trouble, production efficiency is low.
Summary of the invention
The production method that the purpose of this invention is to provide a kind of water-based PU gloves; Be not employed in and add detrimental substance in the polyurethane resin; But the method for employing water-based PU production of resins PU gloves solves the technical problem that the gloves of producing in the prior art have toxicity, contaminated environment, technology trouble.
The objective of the invention is to realize through following technical scheme:
A kind of water-based PU gloves production method comprises: step S1, with the step of gloves core retainer plate on fingerprint that is soaked with coagulating agent; Step S2; The gloves that are enclosed within on the fingerprint are immersed in the PU slurry, make the step that forms one deck PU coating on the glove surface, wherein; The PU slurry is a waterborne polyurethane resin, or the mixed slurry that is formed by the water-based thickener configuration of 97%～99.9% waterborne polyurethane resin and 0.1%～3%; Step S3 is dried or air-dry step the gloves that form the PU coating.
As preferred version, in above-mentioned step S2, the gloves core floods 0.1～30s time in temperature is 0～50 ℃ PU slurry.More specifically, the gloves core floods 0.5～10.6s time in temperature is 14.9-25.5 ℃ PU slurry.
The thickness of coating, the time is long more, thicker, the time is short more, and thickness is thin more, and gloves are blocked up, and comfort level is poor, and sense of touch is poor, cover light, gloves are not durable; Temperature is too high, can have a negative impact to PU slurry stability, and is low excessively, can influence the flowability of PU slurry; Find through a large amount of experiments; Be to flood 0.1～10.6s time in 9.8-25.5 ℃ the PU slurry in temperature; Can guarantee fully that the PU stability of slurry is with simultaneously mobile; Coating layer thickness can be controlled between the 0.2-1mm well, and its feel and comfort level are very good, has also guaranteed patience usefulness.
The regularity of coating edge, temperature is too high, good fluidity, the regularity of coating edge is high, but PU slurry stability is bad; Temperature is low excessively, and mobile bad, the regularity of coating edge is poor; Time is long, helps coating edge neat, and the time is too short, and neat in edge property is poor; In technology; Want the relation of overall balance temperature and time; The regularity of guaranteeing PU slurry stability, flowability and coating edge all obtains effect well, and it is that to flood 0.5～16.7s time in 14.9 ℃-36.1 ℃ the PU slurry be only scope that research is illustrated in temperature.
In the consideration of the thickness of the regularity of comprehensive coating edge and coating, preferably, temperature floods 0.5～10.6s time in being 14.9-25.5 ℃ PU slurry.
As preferred version, above-mentioned mixed slurry is formed by the water-based thickener configuration of 99%～99.7% waterborne polyurethane resin and 0.3%～1%.More specifically, said PU slurry also comprises and carries out foam process, wherein, before the foaming with foaming after the foam volume ratio be 1:3 to 1:1.05.
Also comprise behind the above-mentioned step S2: step S211, with the step that 45-135 ° direction is sprayed salt to the PU coating, wherein, described salt diameter is less than 1mm.Said step S211 concrete steps are: in temperature is 0～50 ℃, sprays salt more than 0.5 second with the speed that is not less than 0.005 gram/square centimeter/second to the PU coat side, and described salt diameter is less than 1mm.
The present invention has formed frosted finish effect through spray salt in glove surface.In order on gloves, to form frosted finish effect, need on the PU coating, form the layer of even salt deposit, and reach the requirement that forms frosted through control salt amount.Therefore spray in the salt process, need when the PU coating will be solidified but be also not solidified, spray salt, but its condition control is extremely important to the PU surface; Such as guaranteeing that through temperature the PU coating will be solidified but spray salt what also not solidified state through spraying salt time and spray salt speed, controls, make the surperficial layer of even salt deposit that forms of PU.Through spray salt temperature, speed and the comprehensive study of time are found, be under 0～50 ℃ in temperature, more than 0.5 second, can satisfy various requirement to PU coat side spray salt with the speed that is not less than 0.005 gram/square centimeter/second.After handle through spray salt on the PU surface; After treating that it washes most drying, the PU surface can present a kind of effect of frosted, and the surface of this frosted is fairly obvious for the effect of gloves; For example after the coating surface frosted; Can form a kind of strong euphorosia sense, Long contact time can alleviate visual fatigue effectively, and coating show as texture.Certainly; In the use of gloves, coating surface is after frosted is handled, and the on-slip property of gloves is that common coating is incomparable; Particularly contact surface has the object of oils, and it is particularly important that this point shows for the maximum of gloves is used colony-industrial enterprise.
It should be noted that in addition the present invention preferably sprays salt with the direction of 55-75 ° or 105-125 ° to the PU coating, in this angular range, its frosted finish effect that not only forms is very good, and when washing, is very easy to wash salt off.
Described salt is selected from ionic compound, and it is the solid granule of diameter less than 1mm under spray salt condition.
As preferred version, also comprise behind the above-mentioned step S2: step S22, further solidify processing to the PU coating.
The aforesaid processing method of solidifying: coagulating agent is sprayed to the PU coating maybe will soak any method in the gloves immersion coagulating agent of PU coating.
As preferred version, before oven dry, the step that the gloves that form the PU coating are washed.
Because adopted above technical scheme, the present invention can reach following beneficial effect: adopt the waterborne polyurethane resin (water-based PU resin) that does not add chemical solvent, avirulence; Do not adopt poisonous chemical organic solvent, the technology that therefore can not wash, technology is simple, and the time of dipping PU coating is short, has improved production efficiency.
The specific embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
A kind of water-based PU gloves production method comprises:
Step S1 is with the step of gloves core retainer plate on fingerprint that is soaked with coagulating agent.Be enclosed within again on the fingerprint after the gloves core soaked the supersolidification agent, perhaps after the gloves core retainer plate of doing is on fingerprint, with coagulating agent it squirted again.Said coagulating agent produces the material of crosslinked or complexing for making water-based PU resin, comprising a kind of or its combination in any in the inorganic salts such as calcium nitrate, aluminum sulfate, calcium chloride; Its diluent can be water, also can be water-miscible organic solvent, for example the mixture of ethanol, acetone, acetate, formic acid etc. or these aqueous solvents; The concentration of coagulating agent is 0.5%～30%, and preferred concentration is 3%～10%.Gloves core (gloves base material) adopts common get textile, for example terylene, nylon, spandex, cotton etc.
Step S2; The gloves that are enclosed within on the fingerprint are immersed in the PU slurry; Make the step that forms one deck PU coating on the glove surface; Wherein, the PU slurry is a waterborne polyurethane resin, or is the mixed slurry that the water-based thickener configuration of 97%～99.9% waterborne polyurethane resin and 0.1%～3% forms by quality proportion; The gloves core floods 0.1～30s time in temperature is 0～50 ℃ PU slurry, as preferably, the gloves core floods 0.1～10.6s time in temperature is 9.8 ℃ ± 25.5 ℃ PU slurry.In order to make the PU gloves have corresponding other some functions or effect, in the PU slurry, can also add functional aid, for example mill base, luminous agent, foam stabilizer, bactericide, UV resistant agent etc.
Step S3 is dried or air-dry step the gloves that form the PU coating.In this step, put the fingerprint that is with the gloves that formed the PU coating into baking oven and dry, then gloves are taken off from fingerprint, just accomplished water-based PU gloves of the present invention.
In the present invention, owing to do not adopt virose chemical organic solvent, make the PU resin of use, so gloves can not discharge noxious material the user is being become harm and environment is polluted and endangers, the gloves of making do not have peculiar smell yet.Because do not adopt the poisonous chemical organic solvent that has, so after forming the PU coating on the gloves core, the step that can not wash; And fingerprint of the present invention soaks the PU slurry, and to form time of PU coating very short.Therefore, the manufacture craft of method of the present invention is simple, enhances productivity.
As preferred scheme, above-mentioned mixed slurry is formed by the water-based thickener configuration of 99%～99.7% waterborne polyurethane resin and 0.3%～1%.
Can be according to producing or client's needs; In the preparation process of said PU slurry, the PU slurry is carried out foam process handle, wherein; The foaming before with the foaming after the foam volume ratio be 1:3 to 1:1.05, can make the PU coating flexibility and the gas permeability of making all better like this.
As preferably, also comprise behind the step S2: step S211, before the PU coating was solidified, with the step of spraying salt to the PU coating with the direction of 55-75 ° or 105-125 °, wherein, described salt diameter was less than 1mm.Because the PU coating is not also solidified, therefore, can make the salt grain embed the PU coating facing to PU coating spray salt; After solidifying fully Deng the PU coating; Through washing process or other technologies, remove salt, will form coarse face at the PU coating surface; Be the effect of frosted, can increase the frictional force of gloves PU coating.The said step that desalts also can be placed on oven dry and carry out afterwards.
As preferably,, also comprise behind the step S2 in order to accelerate the curing rate of PU coating: step S22, further solidify processing to the PU coating; If the technology of spray salt is arranged, behind step S211, also comprises: step S212, further solidify processing to the PU coating.The said processing method of solidifying: coagulating agent is sprayed to the PU coating maybe will soak any method in the gloves immersion coagulating agent of PU coating; Said coagulating agent produces the material of crosslinked or complexing for making water-based PU resin, comprising getting a kind of or its combination in any in the inorganic salts such as calcium nitrate, aluminum sulfate, calcium chloride; Its diluent can be water, also can be water-miscible organic solvent, for example the mixture of ethanol, acetone, acetate, formic acid etc. or these aqueous solvents; The concentration of coagulating agent is 0.5%～30%, and preferred concentration is 3%～10%.
As preferably, before the stoving process of step 3, can comprise washing process.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (4)
1. water-based PU gloves production method comprises:
Step S1, with the step of gloves core retainer plate on fingerprint that is soaked with coagulating agent, said coagulating agent produces the material of crosslinked or complexing for making water-based PU resin, comprising a kind of or its combination in any in calcium nitrate, aluminum sulfate, the calcium chloride inorganic salts;
Step S2; The gloves core that is enclosed within on the fingerprint is immersed in the PU slurry; Said gloves core floods 0.5～10.6s time in temperature is 14.9-25.5 ℃ PU slurry, make the step that forms one deck PU coating on the glove surface, wherein; The PU slurry is a waterborne polyurethane resin, or is the mixed slurry that the water-based thickener configuration of 97%～99.9% waterborne polyurethane resin and 0.1%～3% forms by quality proportion;
Also comprise behind the step S2: step S211; Spray the step of salt to the PU coat side with 45-135 ° direction; In temperature is under 0～50 ℃, sprays salt more than 0.5 second with the speed that is not less than 0.005 gram/square centimeter/second to the PU coat side, and described salt diameter is less than 1mm;
Step S3 is dried or air-dry step the gloves that form the PU coating.
2. water-based PU gloves production method according to claim 1 is characterized in that, said mixed slurry is that the water-based thickener configuration of 99%～99.7% waterborne polyurethane resin and 0.3%～1% forms by quality proportion.
3. water-based PU gloves production method according to claim 1 is characterized in that, said PU slurry also comprises and carry out foam process, wherein, before the foaming with foaming after the foam volume ratio be 1:3 to 1:1.05.
4. water-based PU gloves production method according to claim 1 is characterized in that, further comprises: before oven dry, and the step that the gloves that form the PU coating are washed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103901434A CN102429331B (en) | 2011-10-16 | 2011-12-01 | Manufacturing technique for aqueous PU (Polyurethane) glove |
| PCT/CN2012/075600 WO2013078835A1 (en) | 2011-12-01 | 2012-05-16 | Production process for aqueous pu glove |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110312066.0 | 2011-10-16 | ||
| CN201110312066 | 2011-10-16 | ||
| CN2011103901434A CN102429331B (en) | 2011-10-16 | 2011-12-01 | Manufacturing technique for aqueous PU (Polyurethane) glove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102429331A CN102429331A (en) | 2012-05-02 |
| CN102429331B true CN102429331B (en) | 2012-11-21 |
Family
ID=45977963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103901434A Active CN102429331B (en) | 2011-10-16 | 2011-12-01 | Manufacturing technique for aqueous PU (Polyurethane) glove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102429331B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013078835A1 (en) * | 2011-12-01 | 2013-06-06 | Zhang Hui | Production process for aqueous pu glove |
| CN102669855A (en) * | 2012-05-08 | 2012-09-19 | 傅玉玉 | Waterborne polyurethane coating glove and production process thereof |
| CN104738838B (en) * | 2013-12-25 | 2018-04-06 | 南通强生安全防护科技股份有限公司 | Water-based PU coated gloves production method |
| CN103783702A (en) * | 2014-01-15 | 2014-05-14 | 沙嫣 | Production method of colloid gloves |
| CN104294607B (en) * | 2014-10-23 | 2016-08-24 | 华懋（厦门）新材料科技股份有限公司 | Environment-friendly type windproof water pressure resistance coating and preparation method thereof |
| CN104479340A (en) * | 2014-12-23 | 2015-04-01 | 上海汇得化工有限公司 | Modified waterborne polyurethane resin for safety gloves, as well as preparation method thereof |
| CN106436330A (en) * | 2015-08-11 | 2017-02-22 | 张庆州 | Coating cloth processing method |
| CN105199367A (en) * | 2015-10-20 | 2015-12-30 | 南通强生安全防护科技有限公司 | Water-based PU slurry and preparation method as well as application thereof |
| CN106723535A (en) * | 2016-12-05 | 2017-05-31 | 江阴市易晖化工有限公司 | A kind of preparation method of touch-screen dipped gloves |
| CN106868885A (en) * | 2017-03-16 | 2017-06-20 | 江苏工程职业技术学院 | A kind of processing method of polyamide fibre Graphene white dipped gloves |
| CN108384222B (en) * | 2018-02-28 | 2021-08-10 | 山东星宇手套有限公司 | Waterborne polyurethane coating glove and preparation method thereof |
| CN108977027A (en) * | 2018-07-10 | 2018-12-11 | 南通腾拓手套有限公司 | A kind of aqueous PU coating safety and industrial gloves and its manufacture craft |
| CN108912654B (en) * | 2018-07-20 | 2019-07-19 | 张家港思淇科技有限公司 | A kind of PPU glue and the production technology that dipped gloves are prepared using the PPU glue |
| CN109135257A (en) * | 2018-08-08 | 2019-01-04 | 山东星宇手套有限公司 | A kind of preparation method of aqueous PU frosted gloves |
| CN108813763A (en) * | 2018-08-23 | 2018-11-16 | 江苏恒辉安防股份有限公司 | A kind of method that the aqueous PU composite mortar of graphene-prepares PU gloves |
| CN108978252A (en) * | 2018-08-23 | 2018-12-11 | 江苏恒辉安防股份有限公司 | A kind of processing method of bilayer PU gloves |
| CN111040417B (en) * | 2019-12-24 | 2022-01-28 | 上海华峰新材料研发科技有限公司 | Preparation method of water-based matte polyurethane dipped gloves |
| NL2030817B1 (en) * | 2022-02-03 | 2023-08-11 | Stahl Int B V | Process for preparing a multi-layered composite suitable for making polyurethane synthetic leather |
| CN117209811A (en) * | 2023-09-22 | 2023-12-12 | 江苏恒辉安防股份有限公司 | Preparation method of self-deodorizing high-wear-resistance water-based PU (polyurethane) coated glove |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY142766A (en) * | 2005-08-26 | 2010-12-31 | Duramitt Sdn Bhd | Method and article of manufacturing a waterborne polyurethane coated glove liner |
| WO2009011471A1 (en) * | 2007-07-18 | 2009-01-22 | Hyunkyung Shin | Aqueous polyurethane coated gloves and method for manufacturing the same |
| CN101828780A (en) * | 2009-03-09 | 2010-09-15 | 沙晓林 | Process for producing aqueous PU foam gloves |
| CN101717487A (en) * | 2009-11-20 | 2010-06-02 | 天津碧海蓝天水性高分子材料有限公司 | Polyurethane emulsion and coating agent used for aquosity coating agent of knitted lining glove as well as preparation method and coating method thereof |
-
2011
- 2011-12-01 CN CN2011103901434A patent/CN102429331B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102429331A (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102429331B (en) | Manufacturing technique for aqueous PU (Polyurethane) glove | |
| CN102669855A (en) | Waterborne polyurethane coating glove and production process thereof | |
| CN106666879A (en) | Production method of butyronitrile superfine foam glove | |
| CN101828780A (en) | Process for producing aqueous PU foam gloves | |
| CN106397894A (en) | Preparation method of butyronitrile gloves | |
| CN108819065A (en) | A kind of preparation method of two times frosting gloves of a time foaming | |
| CN102888753A (en) | Method for surface refinement of nonwoven filter material | |
| CN108384222A (en) | A kind of aqueous polyurethane coating gloves and preparation method thereof | |
| EP3194518B1 (en) | Hydrophobic treatment for ski and method | |
| CN102936851A (en) | Infusorial earth environment-friendly interior wall decoration polyurethane synthetic leather and production method thereof | |
| CN103783702A (en) | Production method of colloid gloves | |
| CN106723535A (en) | A kind of preparation method of touch-screen dipped gloves | |
| CN107118410A (en) | The preparation method of the ultra-fine foam gloves of graphene butyronitrile | |
| CN108638407A (en) | A kind of preparation method of two times butyronitrile foam gloves of a time butyronitrile smooth surface | |
| CN103422360B (en) | Soft luggage leather | |
| CN102397833A (en) | Method for manufacturing waterborne-polyurethane-coated glove | |
| CN109135257A (en) | A kind of preparation method of aqueous PU frosted gloves | |
| CN104451001B (en) | A kind of preparation method polishing skin material | |
| KR20070100553A (en) | Manufacturing method of coating gloves with pleats and the coating gloves with pleats by the method | |
| CN106544884A (en) | A kind of formula and processing technology of artificial leather waterborne polyurethane foaming synthetic leather | |
| WO2019157378A1 (en) | Multilayered thin chemical resistant article and manufacturing method | |
| CN109805475A (en) | A kind of preparation method of wrinkle gloves | |
| CN101849718A (en) | Process for producing knitted and dipped PU (polyurethane) gloves by using dimethyl acetamide | |
| CN112519005B (en) | Imitation leather treatment process for stone surface | |
| CN107440199A (en) | A kind of touch-screen dipped gloves and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WU HAIPING Effective date: 20130104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130104 Address after: 214400, No. four, 11 village, Xiangshan Town, Gushan Town, Wuxi City, Jiangsu, Jiangyin Patentee after: Zhang Hui Patentee after: Wu Haiping Address before: 214400, No. four, 11 village, Xiangshan Town, Gushan Town, Wuxi City, Jiangsu, Jiangyin Patentee before: Zhang Hui |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190801 Address after: 215614 West Zhangshuanglong Private Industrial Zone, Fenghuang Town, Zhangjiagang City, Suzhou City, Jiangsu Province Co-patentee after: Zhang Hui Patentee after: Zhangjiagang Si Qi Technology Co., Ltd. Co-patentee after: Wu Haiping Address before: 214400, No. four, 11 village, Xiangshan Town, Gushan Town, Wuxi City, Jiangsu, Jiangyin Co-patentee before: Wu Haiping Patentee before: Zhang Hui |