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The sizing agent for gray fabric is came from Textile factory, to improve yarn's weave property, it needs to be added that sizing agent on yarn. Traditional sizing agent have natural starch size and chemical size PVA/PMA/CMC etc. starch sizing have it's great advantage of natural green eco property, and it gradually become the main sizing agent.
Sizing agent 's exist have some difficult such as permeate resistant, dyeing chemical material waste, effect follow-up processing and product quality etc, therefore eliminating the sizing process is necessary. Eliminating the sizing process is desizing, desizing have enzyme desizing/alkali desizing/acid desizing/oxidizing agent such multiple method.
1、enzyme desizing
This method is using the amylase as the main reactant. Amylase can catalyze starch macromolecular chain hydrolysis, hereby it will generate low molecular compound with smaller molecular weight, lower viscosity, higher solubility, then going through washing , it will eliminate starch sizing . amylase's transition percent conversion, dissolve speed, fit for continuity production, with high efficient, desizing rate reached to 80% up.
2、alkali desizing
This method is using sodium hydroxide as the main reaction. Sodium hydroxide cannot using starch dissolved, but it can make the starch puffing severely, make the intermolecular distant enlargement, structure loosen: meantime it will also make the starch and cotton fiber 's hydrogen bond among hydroxyl destroyed, thereby making the adhesive force of starch on cotton fiber decreased, provide it's dissolution ability away from cotton fiber, make it's water solubility increased, then going though water wash, the starch will be eliminated.
3、acid desizing
This method using acid and alkali as the main reaction agent. Dilute sulphuric acid will cause water dissolution under suitable condition, and translate to solubility starch, saccharides mixture, these water dissolution component 's water solubility higher, based on from cotton fabric washing. Usually pad-batch process desizing agent made from vitriol and surface reactive agent. Acid desizing fiber have certain damage.
4、Oxidizing agent
This method is using hydrogen peroxide/sodium hypochlorite and peracetic acid as the main reaction agent. Oxidizing can make the sizing agent oxidative degradation, not only make the water solubility increase, but also the lotion vicidity decrease, and it's easy make the sizing wiped off. Hydrogen peroxide /sodium hypochlorite and peracetic both are powerful corrosivity oxidizing agent.
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What is cotton's Lustre?
cotton has a very little natural luster, which can however be improved in the fabric chemically by mercerizing or physically by beetling method
Twill cotton Combed cotton and Blended cotton which one is best?
Twill cotton is one kind of weaving technique of fabric, fabric surface is full and it is easy to make flat setting, in another words, it is shrink-proof. The density of twill cotton is larger than plain fabric, it costs more yarns and has a good abradability. Twill cotton is firmer than plain fabric and it is easy to control the shrink rate. Combed cotton increases one exquisite carding process when spinning. It is to comb the shorter fiber and get rid of the impurity in the cotton so that it can make glossy yarns, make cotton more strong and not easy to have pilling. Accordingly the quality of cotton will be more steady. The fabrics made by combed cotton will have higher quality in texture, washability and durability. Cotton blended fabric is made by blended yarn which adopts cotton fiber and other one or two above different fibers. Cotton blended fabrics mainly have three types: cotton brocade, brocade cotton and polyester. It belongs to fiber fabric, and it is comfort, cool and breathable to wear. What is more, it also has good elasticity. This fabric has many merits such as soft color, good draping and small shrinkage and so on. Combed cotton fabric is soft and strong. It is suggested to use "looking" and "touching" two methods to identify the ordinary cotton and combed cotton. Looking method means that single-deck fabric put onto the hand and after light perspective, we can see the combed cotton fabric is compact and we can not see any hand shadow under the light; while because the ordinary cotton fabric density is small, we can see the hand shadow under the light. Touching method is to feel the cotton fabric whether is soft and strong or not.
How could cotton be made more absorbent?
Cotton can be made more absorbent by treating it with certain chemical agents like silicone or fabric softeners. These treatments help open up the fibers in the cotton, allowing them to absorb more water. Additionally, using a higher thread count or weaving method can also improve the absorbency of cotton fabric.
What has the author Ahmad Mahmad Amen written?
Ahmad Mahmad Amen has written: 'Horizontal gravel filtration as a pretreatment method for high turbidity water'
Can sperms pass through cotton?
Sperms are microscopic and can pass through some fabrics, including cotton, due to their size. However, the chances of sperm passing through multiple layers of cotton fabric are low. The best way to prevent sperm from passing through fabric is to use a barrier method of contraception like condoms.
What is FR fabric?
FR fabric is a kind of fabric even it is lighted,it will be extingished by itself after moved from the fire within the prescribed period of time.It is widely used in garments .To judge the rate of burning of the fabric:the textile in accordance with the provisions of the method of contact with the flame for a certain period of time, remove the flame, the fabric burning and smoldering time and fabric damage length determine the fabric flame retardant performance. The shorter the time of burning and smoldering, the lower the damage length, the better the flame resistance of the fabric.There are mainly 2kinds of testing methods. 1,Horizontal burning2,Vertical burningEuropean standard : EN11611(EN470), EN11612(EN531), EN14116(EN533), etcAmerican standard:16CFR 1610There are mainly 2 kinds of FR fabric used for garments.1)inherently fire retardant fabric2)FR treated fabricinherently fire retardant fabricaramid fabricmodacrylic fabricmodacrylic /cotton fabric FR treated fabricFR 100% cotton fabricFR cotton/nylon (C/N ) fabricFR cotton/polyester fabric
What is the most common method of fabric construction?
The most common method is weaving. However in many places fabric construction is done by hand by using knitting.
You are planning an experiment to find out which detergent is the best at removing grass stains from cotton fabric Think about how you might do this experiment and what kinds of variables are involve?
You can conduct the experiment by treating identical pieces of cotton fabric stained with grass using different detergents. The variables involved would include the type of detergent (independent variable), the amount of grass stain left on the fabric after washing (dependent variable), the fabric type, washing conditions, and stain measurement method. Controlling these variables will help ensure the results accurately reflect the effectiveness of the detergents.
What are the decolorizer for the fabric pretreatment?
Decolorizers for fabric pretreatment typically contain chemicals such as hydrogen peroxide or sodium hydrosulfite that can break down or remove color molecules from fabrics. These chemicals are used in combination with detergents or enzymes to help remove stains and brighten fabrics. It is important to follow the manufacturer's instructions when using decolorizers to avoid damaging the fabric.
What is a fabric construction method?
It means, how they make the fabric. I haven't learnt this term for a while now, but I'm sure that's the answer.
What is pad dry cure method?
The unfavorable effect of reactant migration in padded cotton fabrics during.drying on the balance of crease recovery and abrasion weight loss was confirmed once more. The influence of fabric type and pretreatments such as scouring and bleaching
How did the cotton gin advance the growth of the textile indurtry?
It provided a faster method of seperating seeds from cotton
