News Details
Application experiment of waterborne leather coating crosslinking agent
2017-8-14 18:22:03
Application experiment of waterborne leather coating crosslinking agent: a waterborne leather finishing agent without crosslinking agent; Add 1% crosslinking agent's waterborne leather finishing agent; Add 1. 5% crosslinking agent A's water-based leather finishing agent.
coating and drying. The selected water - based leather finishing agents are coated in three 5cm x 15cm leather according to their craft standard, and then the drying conditions and time are dried according to the product standard.
The water-based color steel coating is sprayed on three blocks 10c, m x 15cm, and the drying conditions and time are dried according to the product standard.
Test method for the application of waterborne leather coating crosslinking agent: clean the surface of steel plate with dry cloth before testing. Take a 30cm x 30cm white cotton cloth and fold it twice in half to form a four-layer thickness pad and soak it in the next 5 ~ 10S.
Processing felt and leather is as follows: the first will be felt in deionized water, slowly heated to boiling, make carpet soaked, hot water will pour out, add cold deionized water, until the wet felt at room temperature, remove felt from the water before use, to suck with filter paper
The appropriate protective index finger is placed at the center of the pad, while the thumb and the remaining fingers of the same hand hold the extra portion to 45. Contact the measured surface, with moderate pressure friction rectangle under test, one forward and one direction
The postscript is 1 friction back and forth, rubbing at a rate of about 1 back and forth per second, keeping the moisture in the cotton pad during friction. If it is the former, record the number of friction when the substrate is exposed, and check the measured area and the adhesive coating of the coarse cotton.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
coating and drying. The selected water - based leather finishing agents are coated in three 5cm x 15cm leather according to their craft standard, and then the drying conditions and time are dried according to the product standard.
The water-based color steel coating is sprayed on three blocks 10c, m x 15cm, and the drying conditions and time are dried according to the product standard.
Test method for the application of waterborne leather coating crosslinking agent: clean the surface of steel plate with dry cloth before testing. Take a 30cm x 30cm white cotton cloth and fold it twice in half to form a four-layer thickness pad and soak it in the next 5 ~ 10S.
Processing felt and leather is as follows: the first will be felt in deionized water, slowly heated to boiling, make carpet soaked, hot water will pour out, add cold deionized water, until the wet felt at room temperature, remove felt from the water before use, to suck with filter paper
The appropriate protective index finger is placed at the center of the pad, while the thumb and the remaining fingers of the same hand hold the extra portion to 45. Contact the measured surface, with moderate pressure friction rectangle under test, one forward and one direction
The postscript is 1 friction back and forth, rubbing at a rate of about 1 back and forth per second, keeping the moisture in the cotton pad during friction. If it is the former, record the number of friction when the substrate is exposed, and check the measured area and the adhesive coating of the coarse cotton.
Chinese name: Diethyl toluene diamine(DETDA)
Diethyltoluenediamine Raw material ：
TDA industrial, Sichuan production
Ethylene (Et) polymer grade, Shanghai production
TEA industrial imports
A reagent grade additives
Moisture on felt surfaces; Dip the leather sample into the ionized water, place the container in a vacuum dryer, vacuum to 5kPa, keep 2arin, then return to normal pressure.
Repeat this process more than 2 times, remove the sample from the water before use, and drain the leather surface with the filter paper. The air conditioning sample is set on the test bench and stretched by 10% along the friction direction. Load the load block so that the total mass of the test head is 1000g. The test felt pad is fixed on the test head, so that the test head is in contact with the leather sample, and the number of friction is 200 times.
Remove samples and mat and dry at room temperature before rating. Then observe leather color change and the contamination situation of mat mat, record the change of the sample surface any visible, changes such as gloss, downy or coating after 100 times back and forth friction coating has no effect.
Leather is an animal skin that is not easily decomposed by physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fiber in three dimensional space tightly woven, its surface has a special grain surface layer, has the natural grain grain and luster, the hand feels comfortable.
Leather is of different types and features and USES. For example, bovine leather is fine, high strength and most suitable for leather shoes; Sheep leather light, thin and soft, is the ideal fabric of leather clothing; The air permeability and moisture of pig leather are better. Pig leather: the pores of the leather surface are round and large, and the inclined to extend into the leather. The pores are arranged in three groups, and the surface presents many small triangular patterns.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
Moisture on felt surfaces; Dip the leather sample into the ionized water, place the container in a vacuum dryer, vacuum to 5kPa, keep 2arin, then return to normal pressure.
Repeat this process more than 2 times, remove the sample from the water before use, and drain the leather surface with the filter paper. The air conditioning sample is set on the test bench and stretched by 10% along the friction direction. Load the load block so that the total mass of the test head is 1000g. The test felt pad is fixed on the test head, so that the test head is in contact with the leather sample, and the number of friction is 200 times.
Remove samples and mat and dry at room temperature before rating. Then observe leather color change and the contamination situation of mat mat, record the change of the sample surface any visible, changes such as gloss, downy or coating after 100 times back and forth friction coating has no effect.
Leather is an animal skin that is not easily decomposed by physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fiber in three dimensional space tightly woven, its surface has a special grain surface layer, has the natural grain grain and luster, the hand feels comfortable.
Leather is of different types and features and USES. For example, bovine leather is fine, high strength and most suitable for leather shoes; Sheep leather light, thin and soft, is the ideal fabric of leather clothing; The air permeability and moisture of pig leather are better. Pig leather: the pores of the leather surface are round and large, and the inclined to extend into the leather. The pores are arranged in three groups, and the surface presents many small triangular patterns.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
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