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HT Fine Chemical Co., Ltd
Contact us

+86-13729660270 +86-763-5822257 connie@htfine-chem.com

Wet Rubbing Fastness
Improving Agent
Rubbing fastness is one of the most important indexes in the color fastness of textiles, that is, the degree of fading of dyed fabric after friction,
which can be divided into dry and wet rubbing. Rubbing fastness to the color of white cloth as the evaluation principle, a total of 5 grades (1-5),
the larger the value, indicating the better the rubbing fastness.

Wet Rubbing Fastness
Improving Agent


Rubbing fastness is one of the most important indexes in the color fastness of textiles, that is, the degree of fading of dyed
fabric after friction, which can be divided into dry and wet rubbing. Rubbing fastness to the color of white cloth as the evaluation
principle, a total of 5 grades (1-5), the larger the value, indicating the better the rubbing fastness.



The factors affecting the fastness to wet rubbing in textile products are: the types of fabrics, fabric structure, textile
pretreatment, such as desizing, scouring, bleaching, mercerizing, etc., the choice of textile dyes and the process, temperature,
time control strict or not, as well as the selection and use of textiles auxiliaries, and post-treatment, etc.



Reactive dyes with bright color, complete chromatogram and low price are important dyes for cotton, but the wet rubbing
fastness relatively low in dyeing medium and dark colors. At present, improving the wet rubbing fastness of reactive dyes
mainly by selecting suitable dyes to make the color, strengthening the control of pretreatment and dyeing process, washing and
soaping to remove the floating color, controlling the ph value of the dye cloth, using soft water, adding the sting dispersing
agent, etc. However, the above methods are not effective. Therefore, it is necessary to deal with the fabric with special high
efficiency color fastness improving agent so as to solve the problem of wet rubbing fastness fundamentally.

Wet Rubbing Fastness
Improving Agent HT-818


[Brief information]



-- Original wet rubbing fastness improving agent is poor deep dyeing for direct, reactive,
indigo blue and sulfur dyestuffs, especially for dark black, bright red and turquoise blue whose
wet rubbing fastness is below Grade 1, while fabric wet rubbing fastness exported to Europe
and US must be above Grade 3. Therefore, our company specially developed environmentfriendly wet rubbing fastness improving agent 818 that comply with the new environment
requirement, such as free of DMF solvent, few odor.



[Application]



Based on different kind and concentration of dyes, different kind and pattern of treated fabric, Dosage as below:



-- Dipping (washing only)



HT-818:

2-4% (O.W.F) (Adjustment base on color)



Bath ratio:

1: 10 – 20



Dyed fabrics (pH ≦ 7) → Dip at 40℃ × 20 – 30 min →Dry



-- Padding:



HT-818:



[Main composition]



-- Special water-based polyurethane.



Dyed fabrics (pH <= 7) → One dip & pad with water retention 80 – 85% → Dry



[General properties]



[Notise:]



-- Appearance:



-- Prepared solution should be used immediately.Please test before using.The above process is for reference only.



-- Ionicity: weakly cationic



--Only use alone, can not use for one bath with silicone oil, fixing agent and anionic agent.



-- pH: 3.5+0.5(50g/L)



--The working liquid can achieve the best performance at 25-35℃.



-- Solubility: easily soluble in normal water in any proportion at room temperature



-- Please clean up the alkali (pH less than 7), salt and soaping agent of the fabric before using wet rubbing fastness
improving agent 818.



[Properties and fields of application]



--Please clear away foaming or groove and change the working liquid because it will have a lot of foam when it use for a
long time.



-- Free of formaldehyde and APEO that belongs to environmental products and complies with
EU OEKO-TEX Standard 100 requirements.



-- Use for fixing after cellulose fiber dyeing. Excellent wet rubbing fastness improving
performance that can meet above Grade 3 by improving 1- 1.5 grades.



--No influence on shade and light fastness.



--It is obviously to improve the stability, such as resist to salt and hard water.

light yellow to yellow liquid(darker as time going)

30 – 50 g/L

Wet rubbing fastness improving
agent HT-812C

[Brief information]

HT Fine Chemical specially developed environment-friendly HT812 that improve the product stability of salt & alkali and reduce the structure
insufficient of the product.
Original wet rubbing fastness improving agent is poor deep dyeing for direct, reactive, indigo blue and sulfur dyestuffs, especially for dark black,
bright red and turquoise blue whose wet rubbing fastness is below Grade 1, while fabric wet rubbing fastness exported to Europe and US must be
above Grade 3.
[Properties and fields of application]
-- Does not damage the fabric dyeing fastness.
-- Use for fixing after cellulose fiber dyeing. Excellent wet rubbing fastness improving performance that can improve above Grade 3 by improving
1- 2 grades.
-- No influence on sunlight, shade and fabric hand feeling.
-- Free of formaldehyde and APEO that belongs to environmental product.
-- Easy operation for using by direct dilution.
[Application]
Based on variety and concentration of dyes, variety and pattern of treated fabric, Dosage as below:
-- Dipping
HT-812: 4-8% (O.W.F) (Adjustment base on color)
Bath ratio: 1: 10 – 20
Dyed fabrics (pH ≦ 7) ⇥ Dip ( temperature is 25°C , time is 20 – 30 min) ⇥ Dry (100-120°C ) ⇥ baking (150-160°C for 90 seconds

HT top sale product -Wet rubbing fastness
improving agent HT-818

Other wet rubbing fastness improving agent is poor at deep dyeing for direct, reactive,indigo blue and
sulfur dyestuffs, especially for dark black, bright red and turquoise blue whose wet rubbing fastness is
below Grade 1.
Recently HT have developed a kind of environment-friendly product-wet rubbing fastness improving
agent HT-818 that can improve the product stability of salt & alkali and reduce the structure insufficient of
the product.
This product have 3 major advantages, first, free of formaldehyde and APEO, DMF that belongs to
environmental products with less odor and complies with EU OEKO-TEX 100 Standard requirements;
second, use for fixing after cellulose fibre dyeing and excellent wet rubbing fastness improving
performance that can meet above Grade 3 by improving 1- 1.5 grades; last, with soft hand feeling, no
influence on light fastness and sunlight.
When wet rubbing fastness improving agent HT-818 come out to the markets, gain the full recognition by
the mass customers around the world and this product has to be HT top sale product.
The following products are HT wet rubbing fastness improving agent series, which are suitable for
different markets, if you are interested in, please feel free to contact us for more detail.

Package & Delivery
According to customer's requirement, we can provide different
packages. Sush as 50kg, 125kg or 200kg for liquid.

THANKS FOR WATCHING
Contact us
+86-13729660270 +86-763-5822257
connie@htfine-chem.com
Website: http://www.htfine-chem.com/


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