Q What are the causes of stains in cylinder dyed fabrics?
A The chemical raw materials are not uniform enough; the gray cloth is not clean; the hardness of the water is too high; the heating rate of dyeing is not properly controlled; the use of dyeing auxiliaries is improper; the quality of the dye is poor.
Q What is the purpose of dyeing auxiliaries?
A
Dyeing auxiliaries includes dye fixing agents, cationizing agent, dispersing & leveling agents etc. They help in stabilizing the dyeing bath to improve the exhaustion, achieve level dyeing and improve fastness properties.
Q What is the difference between antifoam and defoamer?
A
Defoamer vs anti-foam agent
The key difference between defoamer and anti-foam is that anti-foam agents can prevent foam from forming, whereas defoamers can control the amount of existing foam. Therefore, anti-foam agents prevent foam formation while defoamers reduce existing foam.
Q Is anti-foam a surfactant?
A
However, they achieve this goal in different ways; antifoams are surfactants that prevent foam from forming in the first place, while defoamers are surfactants that control existing foam levels by stopping the bubbles from stabilizing.
Q What is a good anti-foaming agent?
A
Commonly used antifoaming agents are certain alcohols (cetostearyl alcohol), insoluble oils (castor oil), stearates, polydimethylsiloxanes and other silicones derivatives, ether and glycols (Karakashev and Grozdanova, 2012).
Q What is anti-foaming agent in textile?
A
A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. The terms anti-foam agent and defoamer are often used interchangeably. Strictly speaking, defoamers eliminate existing foam and anti-foamers prevent the formation of further foam.
Q What are the causes of foaming in textile printing and dyeing?
A The sizing process and the high-speed movement of the yarn lead to foaming; in the pretreatment process, high-temperature scouring leads to foaming; in the process of medium-temperature dyeing and high-temperature dyeing, mechanical operation vibration leads to foaming; The paste generates foam during the stirring process in the printing process.
Q What is the difference between crease and wrinkle?
A As defined by the brown researchers, the wrinkle state is when peaks and troughs start to form on the surface, like waves on the ocean. The crease state is when a distinctly sharp groove is formed on the surface.
Q Why anti creasing agent is important?
A Anti-creasing agent is a kind of dyeing auxiliary, which can be used in wet finishing finishing agent of any fiber fabric which is prone to form wrinkles, creases, chicken paw prints and abrasion marks.
Q What is creasing in textile?
A Creases are the transformation of a surface through action, gestures embodied in a material form. Most commonly creases occur at the joints of our bodies flex, bringing together non-adjacent sections of fabric to create pockets, ridges, and furrows
