Rapid Detection Of Raw Hemp Quality By F Method

< p > > a href= "//www.sjfzxm.com/" > marijuana < /a >: alias linen, Kui Ma, Lu Ma, Bai Ma, hemp, flax, sesame seeds, etc.

It is an annual herb of cannabis and cannabis.

< /p >

< p > scientific name: Cannabis sativa, L < /p >

< p > English Name: Hemp, Common hemp or True hemp < /p >

< p > the most cannabis producing countries in the world are Russia, followed by China, France and Italy.

< /p >

The main producing areas of cannabis in China are: Shanxi, Shandong, Henan, Hebei, Anhui, Gansu, Yunnan, Sichuan, Heilongjiang and other provinces. P

< /p >

< p > the main varieties of hemp linen in China are: luma in Shanxi, hemp in Hebei Weixian County, hemp in Shandong Laiwu and linen in Gansu.

< /p >

< p > the yield of Kui Ma is the largest in Gushi County of Henan province and Lu'an city of Anhui province.

< /p >

< p > > a href= "//www.sjfzxm.com/" > hemp fiber < /a > in addition to other hemp fibers which are smooth, moisture absorption, ventilation, heat dissipation and moisture dissipation, strong and durable, rugged and bold, they also have special functions such as antibacterial, moldy, sound insulation, antistatic, UV protection, and no itchy feeling.

Therefore, the hemp fiber textiles are getting more and more popular.

< /p >

< p > < strong > 1 hemp original hemp < /strong > < /p >

< p > < a href= "//www.sjfzxm.com/" > hemp original /a >: Hemp phloem used for hemp textile raw materials.

< /p >

< p > hemp hemp is divided into two main categories: linen and Kui Ma according to different processing methods.

< /p >

< p > hemp (water cut): hemp bast stripped after water retting, washing and drying.

< /p >

< p > Kui MA (dry peeling): Hemp phloem stripped after drying, stacking and drying.

< /p >

< p > marijuana raw hemp has great difference in appearance, color, luster and quality due to different methods of origin, variety, climate, soil and processing. The quality is much different.

< /p >

< p > the quality of hemp raw hemp textile industry directly restricts the quality, grade, processing difficulty and economic benefits of hemp textile products.

Therefore, the quality inspection of hemp raw linen is very important for hemp textile enterprises.

< /p >

< p > < strong > 2 fast testing method for quality of hemp raw hemp < /strong > < /p >

< p > the author has done twenty years' practice according to the quality of hemp raw hemp quality < a href= "//www.sjfzxm.com/" > inspection of /a > hemp degumming and combing a href= "//www.sjfzxm.com/" > process > /a > quality and technical work for twenty years. It is considered that if we want to identify the quality of hemp raw material quickly and accurately, we can follow the fast inspection method of "one look, two touch, three shaking and four pull".

< /p >

< p > < strong > 2.1. Look at < /strong > < /p >.

< p > look at colors, gloss, appearance and length.

Visual inspection is the main method.

< /p >

< p > Color: the color of cannabis is better than that of fresh white and yellow white or light yellow.

< /p >

< p > look at the gloss: Cannabis lustre is natural, soft and bright, and its quality is poor if it is dull and luster.

< /p >

< p > look: appearance depends mainly on the quality of peeling.

The quality of hemp peeling is neat and smooth, and the quality of the hemp is poor.

< /p >

< p > length: under other conditions, the length of hemp is longer than that of short hemp length.

< /p >

< p > < strong > 2.2 two touch > /strong > /p >

< p > feel the elasticity and softness of hemp by touching the skin.

The quality of linen is soft, elastic, hard and hard, otherwise the quality will be poor.

< /p >

< p > < strong > 2.3 three shaking < /strong > < /p >.

< p > holding the root of the hemp root, gently shaking the linen, and making the rattling sound, it shows that the water content of the hemp is moderate, and it can be stored and not easy to mildew.

On the contrary, it indicates that the water content of hemp is large and easy to mold and is not suitable for storage.

< /p >

When the jute linen is less than P, impurities such as hemp, bone, sand, dust, etc. are shaken off.

On the contrary, it indicates that there are large impurities and poor quality in hemp.

< /p >

< p > < strong > 2.4 four pull < /strong > < /p >

< p > by pulling the flax with both hands, the strength of the hemp can be judged.

The pulling force is strong and the quality is good. On the contrary, the small pulling force is of poor quality.

< /p >

< p > < strong > 3 concluding remarks < /strong > < /p >

< p > the quality of cannabis cannabis can be basically determined by the four steps of "one look, two touch, three shaking, four pulling", and the quality of hemp is determined.

< /p >

< p > if we want to further understand the details of other quality indicators of hemp, we can carry out chemical system analysis and physical property test of hemp.

< /p >

< p > chemical system analysis: it mainly includes quantitative analysis of total hemp, cellulose, hemicellulose, lignin, pectin, fat wax and ash content.

< /p >

< p > physical performance test: mainly including fiber fineness (count) test and fiber relative strength test.

< /p >

< p > by analyzing the total gum of the raw hemp, the rate of making the refined hemp and the difficulty of degumming can be predicted in advance.

< /p >

< p > < < a href= > //www.sjfzxm.com/ > quantitative analysis < /a > (mainly including virgin hemp cellulose, hemi fiber, lignin, pectin, wax and ash, ash etc.), according to the original chemical system, we can design the hemp raw gum degumming process according to the chemical composition.

The consumption of the gelatinized material can also be calculated.

< /p >

< p > by testing the physical properties of the original hemp (mainly including fiber fineness and relative strength), it can basically determine the height of hemp raw linen for spinning.

< /p >

< p > up to now, the quality inspection work of hemp < a href= "//www.sjfzxm.com/" > original Ma < /a > has been over and concluded, which can provide a complete basis for the production, processing, consumption and economic benefits of hemp raw linen.

< /p >