Focused on acid dyes and dyes for over 20 years
Focused on acid dyes and dyes for over 20 years

Core products include Acid Golden Yellow G, Acid Red A, Weakly Acidic Blue AS, Acid Magenta 3R, Acid Magenta GR, Acid Black ATT, Acid Black 10B and intermediates such as aminobenzenesulfonic acid.

Focused on acid dyes and dyes for over 20 years
Focused on acid dyes and dyes for over 20 years

Core products include Acid Golden Yellow G, Acid Red A, Weakly Acidic Blue AS, Acid Magenta 3R, Acid Magenta GR, Acid Black ATT, Acid Black 10B and intermediates such as aminobenzenesulfonic acid.

Focused on acid dyes and dyes for over 20 years
Focused on acid dyes and dyes for over 20 years

Tianjin Daqiu Zhuang Hongda Chemical Co., Ltd. was established in 1998

Focused on acid dyes and dyes for over 20 years
Focused on acid dyes and dyes for over 20 years
Focused on acid dyes and dyes for over 20 years

The company was founded in 1998

Tianjin Daqiuzhuang Hongda Chemical Co., Ltd.

Tianjin Daqiuzhuang Hongda Chemical Co., Ltd. was founded in 1998 and focuses on the research and development and production of acid dyes and dye intermediates. Core products include Acid Golden Yellow G, Acid Red A, Weak Acid Blue AS, Acid Scarlet 3R, Acid Scarlet GR, Acid Black ATT, Acid Black 10B and intermediates such as aminobenzenesulfonic acid, which are widely used in leather, textiles, wood and other fields.

1998 year

Company founded in

10 +

Product System

200000 +

Number of cooperative customers

Hoda Chemical
Tianjin Daqiu Zhuang Hongda Chemical Co., Ltd. was established in 1998 and focuses on the research and development and production of acid dyes and dye intermediates.

Hoda Chemical

Hoda Chemical

Tianjin Daqiu Zhuang Hongda Chemical Co., Ltd. was established in 1998 and focuses on the research and development and production of acid dyes and dye intermediates.
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Production
Core products include Acid Golden Yellow G, Acid Red A, Weakly Acidic Blue AS, Acid Magenta 3R, Acid Magenta GR, Acid Black ATT, Acid Black 10B and intermediates such as aminobenzenesulfonic acid.

Production

Production

Core products include Acid Golden Yellow G, Acid Red A, Weakly Acidic Blue AS, Acid Magenta 3R, Acid Magenta GR, Acid Black ATT, Acid Black 10B and intermediates such as aminobenzenesulfonic acid.
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Qualifications
The company relies on high-quality products, a professional quality control system, stringent corporate standards, and a sound management system.

Qualifications

Qualifications

The company relies on high-quality products, a professional quality control system, stringent corporate standards, and a sound management system.
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Exhibition
Widely used in leather, textile, and wood industries

Exhibition

Exhibition

Widely used in leather, textile, and wood industries
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Our team
Process Standardization: Develop strict Standard Operating Procedures (SOPs), clearly defining parameters such as reaction temperature, pressure, and time.

Our team

Our team

Process Standardization: Develop strict Standard Operating Procedures (SOPs), clearly defining parameters such as reaction temperature, pressure, and time.
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Our Products

Focuses on the research and development and production of acid dyes and dye intermediates.


Directly acid-resistant jujube red


Direct Brown MS


Direct deep brown M


Direct big red 4BE


Direct reddish-brown RN


Acid Yellow G

Directly acid-resistant jujube red

Directly acid-resistant jujube red

C.I. No.: Direct Red 23, acid-resistant jujube red, direct acid-resistant red sauce
CAS No.: 3441-14-3
EINECS No.: 222-348-4
Molecular Formula: C35H27N7O10S2
Molecular Weight: 769.7598

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Direct Brown MS

Direct Brown MS

C.I. No.: Direct Brown 2
CAS No.: 2429-82-5
EINECS No.: 219-391-6
Molecular Formula: C29H19N5Na2O7S
Molecular Weight: 627.54

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Direct deep brown M

Direct deep brown M

C.I. No.: Direct Deep Brown MM, Direct Deep Brown MN
CAS Registry Number: 2429-82-5
EINECS Number: 219-391-6
Molecular Formula: C29H19N5Na2O7S
Molecular Weight: 627.54

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Direct big red 4BE

Direct big red 4BE

C.I. No.: 22120, Direct Red 28, Congo Red, Direct Bordeaux 4B, Direct Crimson
CAS No.: 573-58-0
EINECS No.: 209-358-4
Molecular Formula: C32H22N6Na2O6S2
Molecular Weight: 696.6632

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Direct reddish-brown RN

Direct reddish-brown RN

C.I. Number: Direct Blend Brown D-NBR, Direct Lightfast Brown BRL
CAS Number: 16071-86-6
EINECS Number: 240-221-1
Molecular Formula: C31H20N6Na2O9S
Molecular Weight: 698.57

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Acid Yellow G

Acid Yellow G

C.I. No.: 13065, Acid Yellow 36, Soap Yellow, Golden Orange Yellow G, Metanilic Yellow, Metanil Yellow, Acid Soap Yellow, Acid Golden Yellow 2G, Acridine Yellow
CAS No.: 587-98-4
EINECS No.: 209-608-2
Molecular Formula: C₁₈H₁₄N₃NaO₃S
Molecular Weight: 375.3768

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Our Products

Focuses on the research and development and production of acid dyes and dye intermediates.

Honors

The company relies on high-quality product quality, a professional quality control system, strict corporate standards and a perfect management system

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

Qualifications and Honors

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Process Flow


The company relies on high-quality product quality, a professional quality control system, strict corporate standards and a perfect management system

Change principle, reduce weight

Raw material control: The chemical raw materials are inspected and tested according to the company's standards.


Mature process

The standard samples determined by both parties are used as the detection standard, and the testing is carried out according to the customer's application field and testing method.


R&D team

To minimize the detection errors of both parties. Striving to achieve the detection effect of our laboratory, which is the same as the customer's use effect.


Blog

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