Recently, many builders have inquired about the inspection methods for plastic building stencils. The plastic buildings purchased in the summer show deformation and paving when they show waves, winter nails are cracked and the mold is broken when the mold is removed. It is not easy to show that such Issues ( problems ) belong to the national plastic construction template. The easiest way to tell the builder to test the plastic construction template is as follows:
1. Detecting summer mold deformation and laying display wave type: Take the plastic construction template sample and place it in 70 degree hot water for 5 minutes, then take out the hand to pull the mold to see if the mold can harden, such as hardening the plate. Not working.
2 , testing the winter nail cracking and demoulding break scene: take the plastic building template sample placed in the refrigerator minus 10 degrees, placed for 24 hours to take out, then use the nail on the side of the mold from the 10mm position nail to see if the template can crack If the template is cracked, it will not work in summer.
Sewing thread is the thread required for knitted clothing products. According to the raw materials, sewing thread can be divided into natural fiber, synthetic fiber and mixed sewing thread. With the development of polyester industry, more and more pure polyester fibers are used as raw materials for sewing thread.
Sewing thread refers to the thread used for sewing textile materials, plastics, leather products, books and periodicals, etc. The sewing thread has the characteristics of seamability, durability and appearance quality. Sewing thread is generally divided into three types: natural fiber type, chemical fiber type and mixed type due to different materials; The characteristics of sewing thread also have its unique performance due to different materials:
Cotton sewing thread
---Good heat resistance, poor elasticity, abrasion resistance, moisture resistance and bacteria resistance, suitable for high-speed sewing and durable pressing.
Long staple pure cotton thread is mostly used: it is made of long staple cotton through combing, singeing and mercerization, and it is twisted with high density, so the tension is better than ordinary combed pure cotton. It is often used for sewing pure cotton clothing and other pure cotton fabrics.
Pure cotton thread: It is generally divided into two parts: ordinary combed and combed. The real 100% pure cotton thread can be used for sewing is fully combed cotton. Generally, 402, 202 and 203 are used. It is made of combed and singed high-quality cotton in cotton area. Pure cotton thread is often used for sewing pure cotton clothing and other pure cotton fabrics.
Sewing Threads and Yarns,Cotton Sewing Thread,Polyester Sewing Thread,Sewing Machine Thread,Embroidery Thread
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