How to clean leather Pillowcase
Cleaning is usually done by dry cleaning, wet washing, or other means of removing dirt from leather clothing. This is a process that must be carried out in the new process of old leather clothing. After returning to the new, there are still dirt on the leather clothes, which is a question that the customers are very concerned about. At the same time, the dirt will also directly affect the quality of the subsequent processing. If no dirt is cleaned, after finishing the subsequent color processing, leather stains will still be exposed, especially in light color leather quality problem will become more prominent. Also, if the cleaning is not thorough, but also to bring trouble after finishing paint, will greatly weaken the adhesion of coating and grain leather, because of adhesion is not strong, will cause fade, even cracking slurry and desizing and other quality problems. Therefore, cleaning is a very important step in the new processing of old leather clothing. Cleaning operations must be carried out in accordance with certain process procedures. Any need to help soft, remove cracks, pulp, filled leather, must be completed after these processes can be carried out cleaning operations; on the contrary, can be directly cleaned processing. Washing and drying of leather, no greasy feeling and moisture feeling, is the basic requirements of cleaning processing. Leather clothing contaminated with serious dirt, will directly affect your return to new coating difficulty. Therefore, in the cleaning process must be cleaned. There are many ways to clean, and here we mainly talk about dry cleaning and manual cleaning.
When drying, the temperature must not exceed 45~50 degrees. Machine washable leather has a lot of advantages, mainly to make leather get fat to help soft, so that leather to restore the corresponding flexibility and softness, but also the leather lining clean. 2., hand cleaning: manual cleaning, cleaning materials to choose good. The material must meet the following conditions: 1. Quickly remove all kinds of dirt; secondly, no damage to leather; and after the processing of the process does not cause any adverse effects. Hand washing is the first leather cleaning agent diluted with water, then transferred to the hot solution of 50 degrees, with a towel dipped in detergent directly on the leather surface dirt, return back and forth to wipe, dissolve dirt absorption in the wet towel, after examination confirmed dirt to the net, and then use the 30 ~ 40 degree water to wipe clean again, and then drying or drying. Note: (1) do not allow leather to absorb too much water, because too much water can cause swelling of skin fiber and coating, and weaken the adhesion between coating and leather. (2) both leather dirt and clean or not ideal, can not damage leather
Drying: the drying process can be divided into three stages: first, the temperature inside the drum rises to about 27~28 degrees, about 10 minutes. Turn the temperature in the cylinder up to about 45 degrees, about 30 minutes. Turn the temperature in the barrel up to about 50 degrees until the fur dries. Note: (1) leather dry cleaning, should strive to use the cleaning solvent through the "small cycle" washing process pipeline, will pump, button collector and drum rinse to remove these parts may be residual sludge and impurities or dirt with solvent, solvent into the distillation after washing. (2) the laundry must be dealt with before it is dry, and then dry cleaned immediately. Otherwise, the moisture in the leather washing will be exhausted and the dry cleaning effect will be affected. (3) dry laundry should be placed in the bag of moderate size, so as not to cause unnecessary trouble. (4) the installed capacity should be less than the normal capacity. According to leather clothing pollution situation, generally does not exceed 70% in order to improve the dry cleaning effect. (5) the drying process is the key link in the leather dry cleaning. Some leather (such as inversion leather) desorption time is too short to produce leather streaks or lines, and some (such as aniline, semi aniline leather) off the liquid too long will make pale and stiff skin plate.
Dry cleaning: leather in the dry cleaning process, we would like to see the best of all closed dry cleaning machine, the choice of dry cleaning agent, preferably fluoride or chloride liquid, washed into the leather, dry cleaning special auxiliaries. Leather cleaning before the analysis of fur or dirt types, and then according to the color of leather for classification, first wash light color, wash dark. Dry cleaning leather has three basic operations: cleaning, dewatering and drying: (1) cleaning: we generally start by light colored leather dry cleaning, dry cleaning machine: dry cleaning liquid mixture in the liquid (four vinyl chloride), fatliquoring agent, strong detergent; washing time is determined by the type of leather, light leather washing then, clean the dark leather, every time we have added a small amount of fatliquoring agent and strong detergents, because these two kinds of additives will be absorbed after washing clothes, the amount can refer to the following table: four vinyl chloride (KG) fatliquor (KG) strong detergent (KG) washing time (minutes) light 100 KG 2 KG 0.3 leather ~ 0.5 KG 10 minutes 100 KG 0.5 ~ 1 color leather KG leather KG 0.5 100 dark 7 minutes KG5 minutes (2 ~ 1) and liquid: leather in accordance with the above procedure time after cleaning. The next step is to process leather off the liquid, the leather fiber and remove excess fat solution, desorption time according to the different types of leather and decision, but not time off the liquid at a high speed of more than 2 to 3 minutes, if the dewatering time is too long, will bring some destructive leather fiber the best off liquid make drum leather in the heating case to 5 minutes, so that the remaining in the leather fiber internal fat and additives, to produce uniform penetration in the entire piece of leather.
