Before the processing of raw wool scouring, carbonization, and bleaching. Scouring the role is to remove the wool fiber, sheep or goats, sheep sweat and sand and other impurities; charring the role of vegetable matter in the removal of raw wool. These effects can make raw wool showing the excellent quality of the original white, loose, Personalized Decorative Garden Flags soft, and the higher flexibility, to ensure that textile processing can be carried out smoothly, and processed products for light-colored or bleached species, wool bleaching process.
A. Scouring Personalized Decorative Garden Flags
Scouring main purpose is to remove the raw wool, sheep or goats, sheep sweat and sand and other impurities. Scouring quality can not be guaranteed, and will directly affect the smooth conduct of the carding, spinning and weaving projects. The main component of the sheep sweat salts, soluble in water. Suet suet gland secretions, and buildup in the surface of the wool, plays the role of protecting the wool. The suet insoluble in water, and rely on emulsifiers or organic solvents can be washed. Scouring emulsion, sheep sweat, solvents and freezing, which is the most common application of emulsion. Personalized Decorative Garden Flags
(1) emulsion scouring process Promotional Feather Flags
Scouring of the emulsion can be divided into the following several types of processes.
Caustic washing hair, ① soap alkaline wash hair, soap method is with soap, Wind Flags Wholesale detergent, scouring detergent to soda ash. Scouring soap wetting fiber surface and penetrate between the fibers and the suet with the mechanical action of suet and dirt out of the fiber, and transferred to the lotion, to form a stable emulsion is no longer subject to a buildup in the fiber. Soda ash maintain lotion pH, inhibition of soapy water solution to improve the washing effect.
Alkaline wash hair, soap, soap base the amount of suet and other impurities may be need to know before making scouring process impurities in the raw wool. The beginning of the soap base should be controlled according to the wool fat emulsifying properties, domestic wool soap concentration generally opt for 0.2%, above this level, not only emulsifying capacity did not increase too much foam, it will affect the washing of wool, and will wool damage, Personalized Decorative Garden Flags in order to prevent wool damage, alkali concentration should be controlled below 0.2%. If the hard water, may be appropriate to increase with shouting.
Soap caustic washing hair, the pH value close to the 10 most vulnerable emulsifying lanolin, temperature should be chosen in the 45 ~ 55 ° C, rinse pH value should be controlled at nine the following, in order to avoid drying wool damage.
② synthetic detergent plus soda ash scouring: This method is also known as light alkaline wash hair. This method is based on synthetic detergents for the detergent and soda ash as a scouring method of additives. Custom Swooper Flags Wholesale Soda ash can not only improve the washing effect of the synthetic detergent, Custom Teardrop Flags and saponification of fats can also help, Discount Swooper Flags so this method is relatively common. Wool with alkali sensitive to the need for strict control of process parameters in the formulation process.
③ ammonium alkaline wash hair with light alkaline wash hair, Personalized Decorative Garden Flags the residual alkali in the drying and storage, easy to make wool accelerated due to oxidation damage. The technology can be used ammonium alkaline wash hair to overcome this in two feeding slot, the first one slot soda ash as additives, Cheap Teardrop Flags after a trough to the ammonium sulfate instead of soda ash detergent. Can be ammonium sulfate and the residual alkali and dosage should depend on the first trough rolling I rate Under normal circumstances, the use of ammonium sulfate and soda ash ratio of 1:3.
The ④ neutral neutral scouring scouring is the synthetic detergents for dishwashing liquid, scouring detergent to the neutral salt. Neutral scouring method is characterized by damage to water quality do not ask, Personalized Decorative Garden Flags wool, wash the hair white, feel better, and less likely to arouse the junction of the wool fiber carpet, long-term storage of non-yellowing.
Neutral scouring the amount of detergent according to detergent degreasing ability, neutral salt, sodium sulphate dosage of 0.1% to 0.3%, its main role is to reduce the critical micelle concentration of detergent in the more low concentrations, play a good net Xian role. Neutral scouring, lotion near neutral, so the temperature can be relatively high, and can be controlled at 50 ~