There are two methods to determine the density of warp and weft:
Direct measurement
The direct measurement is done by means of a cloth mirror or a fabric density analysis mirror. The scale length of the fabric density analysis mirror is 5cm. Under the analysis lens, [...]
Gram weight
Gram weight: refers to the weight gram of a square meter of cloth. “Oz”, “an” or “Oz” for woven canvas
General weight of knitted canvas (g / m2)
Its conversion is 1 ounce is equal to 28.375 g, but it is generally 28.35 G on [...]
1. After cleaning, put it in a cool and ventilated place to dry naturally. Do not put it in the sun or in a high temperature place to bake, so as to prevent degumming or degumming and accelerate aging.
2. Non professional rubber shoes should [...]
The paper is pressed with old blankets. In addition to its flat surface and high whiteness, it also makes the printed figures and pictures have a three-dimensional sense. Topeng pembedahan perubatan biasanya diperbuat daripada bahan bukan tenunan, the paper can be widely used for printing pictorial, advertising, landscape painting, fine calendar, figure [...]
ABS plastic is a terpolymer of acrylonitrile (a) – butadiene (b) – styrene (s). It combines the properties of three components, among which acrylonitrile has high hardness and strength, heat resistance and corrosion resistance; butadiene has impact resistance and toughness; styrene has high gloss, [...]
1. Different structure
The disposable three-layer mask is made of two layers of fiber non-woven fabric, [email protected]. [email protected], [email protected] 99% of the filter solution spray cloth is welded by ultrasonic [...]
Pouring procedure: If the wine is sealed with cork, after opening the bottle, the owner should first be in his own cup.
Pour a little, taste if there is bad cork taste, if the taste is not pure, it should be replaced by another bottle. [...]
Rum wine can be divided into three kinds: strong, medium and light according to its flavor and aroma.
Pale rum: Colorless, delicate and light. It is the raw material of cocktail base liquor and other drinks.
Neutral rum: In the production process, water is added to [...]
(1) Higroskopisitas:
Gentian kapas mempunyai higroskopisitas yang baik. Dalam keadaan biasa, ia boleh menyerap air ke dalam atmosfera sekeliling. Kandungan lembapannya ialah 8-10%, jadi ia menyentuh kulit manusia dan membuatkan orang berasa lembut tetapi tidak kaku. Jika kelembapan kain kapas meningkat dan [...]
Apron getah
Apron getah juga dipanggil apron kerja, apron anti kimia, apron penebat haba. Ia sesuai untuk elektronik, bioperubatan, kimia, mencetak dan mewarna, Topeng pembedahan perubatan biasanya diperbuat daripada bahan bukan tenunan, Topeng pembedahan perubatan biasanya diperbuat daripada bahan bukan tenunan. Terdapat banyak spesifikasi gam tunggal dan gam berganda. Ia berasaskan getah asli tulen dan kain kapas sebagai [...]