CN1927947A - Red dispersion dyes mixture - Google Patents
Red dispersion dyes mixture Download PDFInfo
- Publication number
- CN1927947A CN1927947A CN 200610050295 CN200610050295A CN1927947A CN 1927947 A CN1927947 A CN 1927947A CN 200610050295 CN200610050295 CN 200610050295 CN 200610050295 A CN200610050295 A CN 200610050295A CN 1927947 A CN1927947 A CN 1927947A
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- CN
- China
- Prior art keywords
- dyestuff
- formula
- red
- dye
- naphthalene sulfonic
- 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
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- 239000000203 mixture Substances 0.000 title claims abstract description 17
- 239000000975 dye Substances 0.000 title claims description 78
- 239000006185 dispersion Substances 0.000 title claims description 17
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 5
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
- 239000012752 auxiliary agent Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 239000007859 condensation product Substances 0.000 claims description 6
- WODGMMJHSAKKNF-UHFFFAOYSA-N 2-methylnaphthalene-1-sulfonic acid Chemical compound C1=CC=CC2=C(S(O)(=O)=O)C(C)=CC=C21 WODGMMJHSAKKNF-UHFFFAOYSA-N 0.000 claims description 4
- 235000019357 lignosulphonate Nutrition 0.000 claims description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 2
- -1 alkyl naphthalene sulfonic acid formaldehyde Chemical compound 0.000 claims 1
- 238000004043 dyeing Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 229920000728 polyester Polymers 0.000 abstract description 3
- 238000007639 printing Methods 0.000 abstract description 2
- NMDKWAQVRNUKQH-UHFFFAOYSA-N 2-benzylnaphthalene-1-sulfonic acid formaldehyde Chemical compound C=O.C(C1=CC=CC=C1)C1=C(C2=CC=CC=C2C=C1)S(=O)(=O)O NMDKWAQVRNUKQH-UHFFFAOYSA-N 0.000 abstract 1
- WQHQCQSAAOGHQP-UHFFFAOYSA-N formaldehyde;2-methylnaphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=CC2=C(S(O)(=O)=O)C(C)=CC=C21 WQHQCQSAAOGHQP-UHFFFAOYSA-N 0.000 abstract 1
- ONTQJDKFANPPKK-UHFFFAOYSA-L chembl3185981 Chemical group [Na+].[Na+].CC1=CC(C)=C(S([O-])(=O)=O)C=C1N=NC1=CC(S([O-])(=O)=O)=C(C=CC=C2)C2=C1O ONTQJDKFANPPKK-UHFFFAOYSA-L 0.000 description 9
- TUXJTJITXCHUEL-UHFFFAOYSA-N disperse red 11 Chemical compound C1=CC=C2C(=O)C3=C(N)C(OC)=CC(N)=C3C(=O)C2=C1 TUXJTJITXCHUEL-UHFFFAOYSA-N 0.000 description 9
- 239000002270 dispersing agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- QEORVDCGZONWCJ-UHFFFAOYSA-N 2-[[4-[2-cyanoethyl(ethyl)amino]phenyl]diazenyl]-5-nitrobenzonitrile Chemical compound C1=CC(N(CCC#N)CC)=CC=C1N=NC1=CC=C([N+]([O-])=O)C=C1C#N QEORVDCGZONWCJ-UHFFFAOYSA-N 0.000 description 2
- NPBDWXMKLFBNIW-UHFFFAOYSA-N 3-[4-[(2-chloro-4-nitrophenyl)diazenyl]-n-ethylanilino]propanenitrile Chemical compound C1=CC(N(CCC#N)CC)=CC=C1N=NC1=CC=C([N+]([O-])=O)C=C1Cl NPBDWXMKLFBNIW-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000986 disperse dye Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- KTHUKEZOIFYPEH-UHFFFAOYSA-N 1-benzylnaphthalene Chemical compound C=1C=CC2=CC=CC=C2C=1CC1=CC=CC=C1 KTHUKEZOIFYPEH-UHFFFAOYSA-N 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000001694 spray drying Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Coloring (AREA)
Abstract
The present invention relates to one kind of red dispersive dye mixture for printing and dyeing polyester material, and provides one new kind of red dispersive dye mixture with high level dyeing property, good dyeing reproductivity, high build-up and excellent fastness. The red dispersive dye mixture is prepared with dye A 12-27 wt%, dye B 21-42 wt%, dye C 1-10 wt%, dye D 1-10 wt%, and assistant for the rest, and through a conventional preparation process. The assistant is one or several of naphthalene sulfonic acid-formaldehyde condensate, methyl naphthalene sulfonic acid-formaldehyde condensate, benzyl naphthalene sulfonic acid-formaldehyde condensate and lignosulfonate.
Description
Technical field
The present invention relates to a kind of organic dye, specifically is the red dispersion dyes mixture that a kind of dyeing polyester materials is used.
Background technology
In the printing and dyeing of polyester material, Disperse Red S-5BL (being dispersed ruby SE-2GFL) uses a very large dyestuff, but the application performance dyeing repeatability of this dyestuff is bad, level-dyeing property is relatively poor, pH value to dye bath is responsive, and dyestuff color development rate is low, and sublimation fastness is poor.
Chinese patent literature CN1597790A discloses " a kind of composite disperse red dye ", but following deficiency is arranged, and the one, the compatibleness of the composite disperse dye of this patent is unsatisfactory, and the 2nd, the fastness of the composite disperse dye of this patent is relatively poor.
Summary of the invention
The technical issues that need to address of the present invention are, overcome the existing deficiency of prior art a kind of good level-dyeing property, dyeing favorable reproducibility, enhancing rate height, new red dispersion dyes mixture that fastness is good are provided, Disperse Red S-5BL not only can be substituted, the shortcoming of product described in the document CN1597790A can also be improved.
A kind of red dispersion dyes mixture of the present invention, preparation according to a conventional method is characterized in that having following components in weight percentage:
Formula (1) dyestuff A 12～27%,
Formula (2) dyestuff B 21～42%,
Formula (3) dyestuff C 1～10%,
Formula (4) dyestuff D 1～10%,
Its surplus of auxiliary agent,
Described auxiliary agent is a naphthalene sulfonic acidformaldehyde condensation product, condensation compound of methyl naphthalene sulfonic acid and formaldehyde, one or more in benzyl sulfonic formaldehyde condensation compound, the sulfonated lignin.Said components adds water and grinds dispersion, and spraying drying gets product then.
Wherein, the structural formula of dyestuff A is,
The structural formula of dyestuff B is,
The structural formula of dyestuff C is,
The structural formula of dyestuff D is,
As preferably, following components in weight percentage is arranged: formula (1) dyestuff A 15～24%, formula (2) dyestuff B 25～39%, formula (3) dyestuff C 2～7.5%, formula (4) dyestuff D 2～7.5%.Be more preferably, following components in weight percentage is arranged: formula (1) dyestuff A 18～22%, formula (2) dyestuff B 30～38%, formula (3) dyestuff C 2.5～5%, formula (4) dyestuff D 2.5～5%.
Above-mentioned dyestuff A～D and auxiliary agent are the commercially available prod, as applicant company product.
Red dispersion dyes mixture of the present invention has solved compatibility of dyes, and dye shade and Disperse Red S-5BL are more approaching, and dyestuff performance (as washing fastness) is more superior, and dyeing favorable reproducibility, enhancing rate height, fastness are good.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.But protection scope of the present invention is not limited to implementation method described below.
Red dispersion dyes mixture of the present invention can have following method preparation:
Carry out aftertreatment processing after dyestuff, auxiliary agent and water mixed by a certain percentage, promptly grind dispersion, use the spray-drying tower drying then with sand mill.
Above-described dyestuff A, dyestuff B, dyestuff C and dyestuff D can adopt the commercially available prod.Can adopt the former dyestuff of Disperse Red GS (the C.I. Red-1 200 53 of Zhejiang Jihua Group Co., Ltd's production as dyestuff A, CAS:78564-87-1), the former dyestuff of Disperse Red 2BL-S (the C.I. Red-1 200 45 that dyestuff B can adopt Zhejiang Jihua Group Co., Ltd to produce, CAS:88650-97-9), can adopt the former dyestuff of Disperse Red SE-4RB (the C.I. Disperse Red 73 of Zhejiang Ji Hua group company production as dyestuff C, CAS:16889-10-4), as dyestuff D can adopt the former dyestuff of Disperse Red 2GH that Zhejiang Ji Hua group company produces (C.I. Disperse Red 50, CAS:12223-35-7).
Above-mentioned various auxiliary agents can adopt the commercially available prod.Naphthalene sulfonic acidformaldehyde condensation product can adopt dispersion agent NNO, and condensation compound of methyl naphthalene sulfonic acid and formaldehyde can adopt Dispersant MF, and the benzyl sulfonic formaldehyde condensation compound can adopt dispersing agent C NF, sulfonated lignin can adopt dispersion agent Reax 85A.
Embodiment:
According to allocation sheet (table one) data is foundation, dyestuff A, dyestuff B, dyestuff C, dyestuff D and auxiliary agent (condensation compound of methyl naphthalene sulfonic acid and formaldehyde (MF), diffusant benzyl naphthalene sulfonic formaldehyde condensation compound (CNF), are spread basic naphthalene sulfonic acidformaldehyde condensation product (NNO), sodium lignosulfonate (Reax 85A), mix according to a certain percentage, in sand mill, grind dispersion after adding water in 1: 1 ratio, be spray dried to commercial dye then.
Table one allocation sheet
| Embodiment | Dyestuff A (%) | Dyestuff B (%) | Dyestuff C (%) | Dyestuff D (%) | Dispersant MF (%) | Dispersing agent CNF (%) | Dispersing agent NNO (%) | Dispersion agent Reax 85A (%) |
| Embodiment 1 | 12 | 38 | 1 | 8 | 32 | 0 | 9 | 0 |
| Embodiment 2 | 20 | 42 | 4 | 1 | 15 | 5 | 6 | 7 |
| Embodiment 3 | 27 | 21 | 10 | 3 | 20 | 19 | 0 | 0 |
| Embodiment 4 | 25 | 30 | 3 | 10 | 20 | 0 | 15 | 0 |
| Embodiment 5 | 23 | 35 | 7 | 2 | 13 | 0 | 0 | 20 |
| Embodiment 6 | 15 | 38 | 5 | 4 | 0 | 20 | 9 | 9 |
| Embodiment 7 | 19 | 33 | 4.5 | 5 | 0 | 18 | 10 | 10.5 |
| Embodiment 8 | 17 | 28 | 6 | 4.5 | 30 | 10 | 4.5 | 0 |
| Embodiment 9 | 19 | 34 | 3.5 | 2.5 | 16 | 17 | 0 | 8 |
Respectively getting 0.5 gram embodiment 1～9 makes to such an extent that dispersed dye are dispersed in 500 ml waters, must mix by water with 60 milliliters after drawing 20 milliliters, transferring dye bath PH with acetic acid is 5, be warming up to 70 ℃ put into simultaneously 2 the gram trevira dye, in 30 minutes, be warmed up to 130 ℃ by 70 ℃, be incubated 30 minutes, begin sampling when being cooled to 90 ℃.Observe sample cloth coloured light, adopt GB GB/T3921-1997, GB/T3920-1997, GB/T5718-1997 to survey its dyefastness.Test result sees Table 2.Comparative Examples 1
Get 0.5 gram Disperse Red S-5BL dyestuff and repeat above-mentioned detection method and operate, test result is seen
Table two
| Embodiment | Color | Washing fastness (60 ℃) | Crock fastness | Sublimation fastness (180 ℃) |
| Embodiment 1 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 2 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 3 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 4 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 5 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 6 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 7 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 8 | Blue light is red | 4～5 grades | 4～5 grades | 4～5 grades |
| Embodiment 9 | Blue light is red | 5 grades | 4～5 grades | 4～5 grades |
| Comparative Examples 1 | Blue light is red | 4 grades | 4 grades | 4 grades |
Claims (4)
1, a kind of red dispersion dyes mixture, preparation according to a conventional method is characterized in that having following components in weight percentage:
Formula (1) dyestuff A 12～27%,
Formula (2) dyestuff B 21～42%,
Formula (3) dyestuff C 1～10%,
Formula (4) dyestuff D 1～10%,
Its surplus of auxiliary agent,
Described auxiliary agent is a naphthalene sulfonic acidformaldehyde condensation product, alkyl naphthalene sulfonic acid formaldehyde condensation products, the mixture of one or more in the sulfonated lignin;
Wherein, the structural formula of dyestuff A is,
The structural formula of dyestuff B is,
The structural formula of dyestuff C is,
The structural formula of dyestuff D is,
2, require 1 described red dispersion dyes mixture according to profit, it is characterized in that having following components in weight percentage:
Formula (1) dyestuff A 15～24%,
Formula (2) dyestuff B 25～39%,
Formula (3) dyestuff C 2～7.5%,
Formula (4) dyestuff D 2～7.5%.
3, red dispersion dyes mixture according to claim 2 is characterized in that having following components in weight percentage:
Formula (1) dyestuff A 18～22%,
Formula (2) dyestuff B 30～38%,
Formula (3) dyestuff C 2.5～5%,
Formula (4) dyestuff D 2.5～5%.
4,, it is characterized in that described auxiliary agent is a naphthalene sulfonic acidformaldehyde condensation product, condensation compound of methyl naphthalene sulfonic acid and formaldehyde, one or more in benzyl sulfonic formaldehyde condensation compound, the sulfonated lignin according to claim 1 or 2 or 3 described red dispersion dyes mixtures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100502959A CN100427550C (en) | 2006-04-11 | 2006-04-11 | Red dispersion dyes mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100502959A CN100427550C (en) | 2006-04-11 | 2006-04-11 | Red dispersion dyes mixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1927947A true CN1927947A (en) | 2007-03-14 |
| CN100427550C CN100427550C (en) | 2008-10-22 |
Family
ID=37858093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100502959A Active CN100427550C (en) | 2006-04-11 | 2006-04-11 | Red dispersion dyes mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100427550C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100528973C (en) * | 2007-06-18 | 2009-08-19 | 浙江闰土股份有限公司 | Azo red dye composition |
| CN102660145A (en) * | 2012-04-28 | 2012-09-12 | 浙江万丰化工有限公司 | Disperse dye composition for disperse/reactive dye combination printing, and preparation and application thereof |
| CN103113759A (en) * | 2013-02-28 | 2013-05-22 | 绍兴县精细化工有限公司 | Red disperse dye composition, and preparation method and application thereof |
| CN107043554A (en) * | 2016-08-31 | 2017-08-15 | 浙江龙盛集团股份有限公司 | A kind of red disperse dyes composition and dye preparations |
| CN111057395A (en) * | 2019-12-24 | 2020-04-24 | 浙江闰土股份有限公司 | Disperse dye composition, disperse dye, and preparation method and application thereof |
| CN112063196A (en) * | 2020-09-21 | 2020-12-11 | 浙江双冠染料有限公司 | Red disperse dye composition |
| CN115198539A (en) * | 2021-04-12 | 2022-10-18 | 福建莱得化工科技有限公司 | Printing process based on liquid disperse dye |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3115106B2 (en) * | 1992-06-30 | 2000-12-04 | ダイスタージャパン株式会社 | Disperse dye mixture |
| JP3310470B2 (en) * | 1994-02-04 | 2002-08-05 | 日本化薬株式会社 | Red disperse dye composition and method for dyeing hydrophobic fiber material using the same |
| GB2336852A (en) * | 1998-05-01 | 1999-11-03 | Yorkshire Chemicals Plc | Dye composition for dyeing fibres based on mixture of at least three N-ethyl-N-substituted 4-(2-halo-4-nitro-6-[halo/nitro]phenyl)azoaniline derivatives |
| CN1325574C (en) * | 2004-12-16 | 2007-07-11 | 浙江龙盛集团股份有限公司 | Red dye composition |
-
2006
- 2006-04-11 CN CNB2006100502959A patent/CN100427550C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100528973C (en) * | 2007-06-18 | 2009-08-19 | 浙江闰土股份有限公司 | Azo red dye composition |
| CN102660145A (en) * | 2012-04-28 | 2012-09-12 | 浙江万丰化工有限公司 | Disperse dye composition for disperse/reactive dye combination printing, and preparation and application thereof |
| CN103113759A (en) * | 2013-02-28 | 2013-05-22 | 绍兴县精细化工有限公司 | Red disperse dye composition, and preparation method and application thereof |
| CN107043554A (en) * | 2016-08-31 | 2017-08-15 | 浙江龙盛集团股份有限公司 | A kind of red disperse dyes composition and dye preparations |
| CN111057395A (en) * | 2019-12-24 | 2020-04-24 | 浙江闰土股份有限公司 | Disperse dye composition, disperse dye, and preparation method and application thereof |
| CN111057395B (en) * | 2019-12-24 | 2022-01-07 | 浙江闰土股份有限公司 | Disperse dye composition, disperse dye, and preparation method and application thereof |
| CN112063196A (en) * | 2020-09-21 | 2020-12-11 | 浙江双冠染料有限公司 | Red disperse dye composition |
| CN112063196B (en) * | 2020-09-21 | 2021-09-10 | 浙江双冠染料有限公司 | Red disperse dye composition |
| CN115198539A (en) * | 2021-04-12 | 2022-10-18 | 福建莱得化工科技有限公司 | Printing process based on liquid disperse dye |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100427550C (en) | 2008-10-22 |
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Assignee: Hangzhou Jihua Jiangdong Chemical Co., Ltd. Assignor: Zhejiang Jihua Group Co., Ltd. Contract record no.: 2011330000333 Denomination of invention: Red dispersion dyes mixture Granted publication date: 20081022 License type: Exclusive License Open date: 20070314 Record date: 20110425 Assignee: Hangzhou Jihua Jiangdong Chemical Co., Ltd. Assignor: Zhejiang Jihua Group Co., Ltd. Contract record no.: 2011330000333 Denomination of invention: Red dispersion dyes mixture Granted publication date: 20081022 License type: Exclusive License Open date: 20070314 Record date: 20110425 |
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Address after: Xiaoshan District of Hangzhou City, Zhejiang province 311234 Hongshan farm Patentee after: Zhejiang Jihua Group Co., Ltd. Address before: Xiaoshan District of Hangzhou City, Zhejiang province 311234 Hongshan farm Patentee before: Zhejiang Jihua Group Co., Ltd. Address after: Xiaoshan District of Hangzhou City, Zhejiang province 311234 Hongshan farm Patentee after: Zhejiang Jihua Group Co., Ltd. Address before: Xiaoshan District of Hangzhou City, Zhejiang province 311234 Hongshan farm Patentee before: Zhejiang Jihua Group Co., Ltd. |
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Effective date of registration: 20200701 Address after: No.1766, New Century Avenue, Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee after: HANGZHOU JIHUA JIANGDONG CHEMICAL Co.,Ltd. Patentee after: ZHEJIANG JIHUA GROUP Co.,Ltd. Address before: 311234 Hongshan farm, Xiaoshan District, Zhejiang, Hangzhou Patentee before: ZHEJIANG JIHUA GROUP Co.,Ltd. |
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