精品国产一区二区三区蜜臂_日韩免费观看久久_国产乱人伦AⅤ在线麻豆A_天堂中文在线8最新版地址_隔着内裤把她摸出水了动漫_边做边讲荤话h失禁_无码A级毛片视频_日韩久久免费影院观看_能看的一级黄色网站_国产午夜精品一区二区三区下

Denim is a very important fabric in the current textile industry, and people are also very fond of denim. But we know very little about denim, do we know? In fact, denim is also dyed, and denim produced by different dyeing methods is different. However, there are some operation keys during the dyeing process of denim, which we know. Only by understanding these operation keys can we ensure that there will be no problems during the dyeing process of denim.

1. Dry cylinder recovery mother liquid and scouring treatment liquid shall be prepared in advance to facilitate the following operations.

2. When dyeing denim, if you want to ensure uniform dyeing, the requirements on speed are very strict. You should fix the speed and can't change it at will.

3. The yarn sample should be collected once for each axis, and the corresponding records should be made. If the color is found to be different from the standard color, it should be adjusted in time.

4. The up and down shafts must be agile and accurate enough to make the dyeing transmission mechanism operate normally without making the dyeing appear defects.

5. The recovery mother liquor shall be used according to the correct methods and steps when it is equipped. It can only be used if it meets the industrial requirements.

6. Check the rubber roll punctually to ensure it is round. Because only rounded rubber rollers can prevent color difference.

The article originates from denim mill:http://mkiller.cn/