How to determine the grade of flax fiber

Flax fiber is also called flax raw stem. It is the raw material for flax fiber spinning. The quality of flax raw stem is directly related to the quality of flax fabric. Therefore, there are corresponding grades and standards in the selection of flax raw stems. The grade of raw flax stems is mainly determined according to the color, standard color rate, process length, fineness, standard stem rate, stubble content, moisture regain and other indicators of the original flax stems. The dreamer of flax fabrics takes you to understand the professional terms and grade standards of flax raw stems.

Related technical terms for flax raw stem indicators:

　　 color,

　　 refers to the actual color and luster of the flax stalk under natural light.

　　 standard color rate,

　　 The percentage of the number of stems in a certain grade of stems that meet the color of the grade.

　　 process length,

　　 refers to the distance from the prostem cotyledon mark to the base of the first branch.

　　 fineness,

　　 The diameter of one-half of the length of the original stem.

　　 standard stem,

　　 The color, fineness, process length, standard color rate of the original stem meets a certain grade standard.

　　 standard stem rate,

　　 The percentage of the number of standard stem plants in the total number of plants tested.

　　 is sloppy,

　　 The mass of grass in the tested sample accounts for the percentage of the tested sample.

　　 According to the above indicators of the raw flax stalk test samples, the results are compared with the indicators of each grade and the physical standard to determine the grade. The regular moisture regain rate is 12%. The maximum allowable moisture regain is 14% (equivalent to 12% water content).