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Showing posts with the label dyeing agent

Reactive Dye Levelling Agent for Wool

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In printing and dyeing process, how to avoid uneven phenomenon is one of the important indexes of printing and dyeing.  Levelling agent  is the auxiliary that can be used in the fiber and makes the fabric dyes evenly. One of the functions of levelling agent is making the dyes slowly absorbed by the fibre. The second function of  dyeing agent  is when it is the uneven dyeing, the dark part of the dye moves towards the light part, and finally, achieve levelling. Therefore, retarding and migration are the two most important functions of levelling agent. Levelling agent is the auxiliary that has affinity to fiber and dyes, which can promote dye exhaustion, so that they can quickly penetrate into the fiber, achieving dispersion and obtain uniform dyeing effect. It can promote a variety of fabric surface levelness, improve damaged tip of wool fiber, make the wool in its original quality at 85℃. It should be noted that it can not be combined with other anionic additives, a...

How to Prevent Breakage and Seam Mark in the Process of Cold Dyeing of Rayon Fabric?

The cold dyeing process of rayon fabric includes singeing, stacking, cleaning, tentering, cold pad-batch, finishing and so on.  So we need to grasp the process conditions and processing points and prevent the fabric from breakage and seam mark. If we have select C type cold dyeing produced by Huntsman Corp, which has better effect, but the cost is higher. The fabric specification and process 1. Fabric specification 9.85 tex×9.85 tex,354pcs/l0 cm×346pcs/lO cm,l60 cm rayon fabric. 19.7 tex×19.7 tex, 394pcs/l0 cm×236pcs/l0 cm,160 cm Rayon fabric. 2. process Cloth suture inverting→singeing and rolling enzyme→piling(wet cropping roll and seal packing for 4-6h)→boiling and washing→tentering→cold dyeing ( dyeing agent )→soft tentering→shrinkproof 3. The preliminary treatment process conditions and controlling point 3.1 Singeing and rolling enzyme The burner for singeing is one positive and one objective. The padder speed is 100~110 m/min. Rolling enzyme receipt/(g.L-1) Amylase   ...

The correct method using fixing agents

Non-formaldehyde fixing agent  property is evaluated according to the fixing result of dyed fabric:  Dyeing and sampling→ fixing → the evaluation on the fixing agent: ①color changes in hue ②Wet fastness ③soap washing fastness ④perspiration fastness. ⑤crock-fastness ⑥chlorine fastness ⑦wet iron fastness ⑧light fastness ⑨ the influence of storage on the activated dyeing color fastness-quick test (Cribbage methods) 1. Dyeing and sampling: dye:2%(o.w.f) (commonly choose red, black and orchid); fabric : preliminary treated woven plain.  Dyeing agent  is according to the dyeing and sampling method. If it is applicable test in the factory, we can choose fabric with the lower fastness in the workshop. 2. Fixing: fixation process: fixing agent: 2%-4%(o.w.f) bath ratio:1:20, temperature: 40℃~60℃(according to the actual conditions in the fabric or the suggested using index of fixing agent); time: 20min; PH value: some fixing agent need correct PH value to ensure the best fixin...

The common 15 quality problems after dyeing finishing

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1, The unsatisfied hand-feeling  2, Yellowing 3, The fabric hydrophilic capacity decline 4, light color spot 5, alkaline spotting 6, Softener stain 7, Silicone oil spot   8, Poor lousiness We have talked about these quality problems above in our former articles, to find them, please go to:  http://www.htfine-chem.com/news/industry-news/choose-finishing-agent.html . Here to discuss more quality problems after dyeing and finishing. 9, Formaldehyde problem The free formaldehyde in the resin or N-hydroxymethyl structure resin may resolve formaldehyde can cause the excess of the formaldehyde. So we should choose low-content formaldehyde resin or non-formaldehyde resin. The sources of  the formaldehyde is varied, including fastness Y, M, Softener Ms-20, S-l。 Water-proof agent AEG. FTC, adhesive PF. Fire retardant and other auxiliary.  And the transfer of formaldehyde from air to fabric also may cause the excess of formaldehyde. 10, Yellowing or discolora...

HT Fine Chemical Co., Ltd About

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HT Fine Chemical Co., Ltd is a fine chemical industry company specializing in the production of printing and  dyeing auxiliaries , washing water additives, chemical raw materials.The company ensures higher-quality product than the relevant product standards through the establishment of sound internal quality control system. HT Fine Chemical Co., Ltd  mainly produces the following six series of products: 1. knitting and yarn  pretreatment auxiliaries 2. dyeing auxiliaries 3. hand feels finishing auxiliaries 4. functional finishing agent 5. auxiliaries for denim sizing and washing 6. auxiliaries for household chemical fertilizer HF have more than fifty reaction kettle and  sewage treatment system to  meet the requirements of the state environmental protection : HT Fine Chemical Co., Ltd  has more than one hundred and twenty employees, including 30% of  technical and r&d team. HF has strong research and...

Textile Auxiliaries Common Info & Accelerate the pace of development of chemical fiber oil

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Textile auxiliaries are necessary chemicals for the production and processing of textiles. Textile auxiliaries to improve the quality of textile products and added value has an indispensable role, it can not only give the textile a variety of special features and styles, such as soft, wrinkle-free, anti-shrink, waterproof, anti-bacterial, anti-static, Etc., can also improve the dyeing and finishing process, play a role in saving energy and reducing processing costs. Textile auxiliaries to enhance the overall level of the textile industry and the role in the textile industry chain is essential. Common  textile auxiliaries Scouring agent, dyeing agent , leveling agent, softener, hair effect lifting agent, polyester low temperature dyeing carrier, substitute alkali, CT powder, chemical fiber oil, high efficiency retreat powder, hydrogen peroxide stabilizer, in addition to silicon, Pilling agent, fixing agent and so on. Accelerate the pace of development of chemica...

Textile dyeing chemicals for sale from China

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Before the detailed introduction of Textile dyeing chemicals, let's see some pictures: General information of  Textile dyeing chemicals produced by HT FINE CHEMICALS FROM CHINA Auxiliaries can be divided into printing auxiliaries and dyeing auxiliaries. Printing auxiliaries including adhesives, thickening agent, crosslinking agent, emulsifying agent, softening agent, dispersing agent and defoaming agent, dyeing auxiliaries is a kind of auxiliaries in the printing and dyeing auxiliaries, the auxiliaries used in different dyes are not the same, so that they can be better or better dyed in the dyeing process, dyeing auxiliaries including leveling agent, fixing agent, dispersing agent, fluorescent whitening agent and softener. Pulp, back fabric scouring bleaching and mercerizing process are important fabric before dyeing, called scouring. Scouring is cotton fabric desizing in boiling dilute caustic soda solution in 10g/L hours, to remove the cottons...