D is the number of knitting threads of stockings. The greater the parameter after D, the more times of surface knitting and the greater the thickness of stockings.
Stockings are generally bought according to their thickness. The current hosiery is divided into 6D "thin to bottom", 10D ultra-thin, 15D ultra-thin, 50D, 80D, 120D, 150D, 300D to 2000D.
Generally, ultra-thin socks can be used in summer, 50D, 80D, 120D and 150D in spring and autumn, and extra-thick warm cashmere socks over 300D can be used in winter. The thickness of 1600D is basically the same as that of ordinary cotton trousers. Core-spun yarns are all thin.
Extended data:
Classification of stockings
Nylon silk pantyhose: ordinary nylon stockings belong to early products. Their biggest defects are poor elasticity, low transparency and basically no production.
Core-spun silk pantyhose: mainstream products. The quality and price of core-spun socks produced by different manufacturers vary greatly. Generally, the top grade is tightly woven and loosely woven.
Medical pantyhose: Medical pantyhose are medical elastic socks woven from imported DuPont Lycra and nylon, which are used to treat venous symptoms of lower limbs. Medical pantyhose are divided into three stress levels: first-class stress prevention pantyhose, second-class stress treatment pantyhose and third-class stress severe treatment pantyhose.
First-class low-pressure treatment (15-30 mmHg): it is suitable for people with high incidence of varicose veins and thrombosis in early stage and its health care and prevention;
Secondary medium pressure therapy (30-40 mmHg): It is suitable for patients with obvious varicose veins of lower limbs accompanied by leg discomfort (such as lower limb pain, fatigue, swelling and pain, eczema, cramp and numbness, pigmentation, etc.). ), phlebitis, severe varicose veins during pregnancy, varicose veins after stripping, varicose veins of great saphenous vein, patients with deep vein thrombosis syndrome;
Three-stage high-pressure therapy (40-50mmhg): It is suitable for patients with high swelling of lower limbs, ulcer, blackening and hardening of skin, irreversible lymphedema and recovery after plastic liposuction.
Determine the size of medical pantyhose: (medical pantyhose are divided into small S, medium M, large L and extra large XL)
Measure the three main dimensions (centimeters) of the wearer's leg: the circumference of the ankle (the thinnest part of the ankle), the maximum circumference of the calf and the maximum circumference of the thigh to determine the appropriate number. The number of medical pantyhose should be selected according to the height and weight of the wearer.
Leggings: Leggings are 20 1 1 the most popular leggings for fashionable women. The colorful and slim colors of the legs attracted the attention of girls. The material of stovepipe pantyhose is nylon. Leg-stovepipe pantyhose are generally divided into 240D, 280D, 360D, 420D, 680D and 880D, and a few of them are above 1000D.
Nylon pantyhose
Pantyhose stockings made of ordinary nylon yarn belong to early products, and their biggest defects are poor elasticity and low transparency.
Crystal silk pantyhose
In order to solve the defects of ordinary nylon yarn, crystal yarn was developed. The transparency of this material has been greatly improved, so that the color of stockings is no longer dim, but the shortcomings of poor elasticity have not been improved, and the feel is rough. Only some low-priced products and some socks still use crystal silk, and it is generally less and less.
Core-spun silk socks
Core-spun yarn has high transparency, excellent elasticity, completely overcomes the defects of nylon yarn and crystal yarn, and feels delicate and smooth, belonging to mainstream products.
Velvet pantyhose
Velvet is slightly less transparent than core-spun yarn, but it is much more elastic, which not only makes it feel better, but also increases the warmth. Velvet is used in more advanced products, but there are also pure velvet and impure velvet.
According to the style, it can also be divided into: open pantyhose, pedal pantyhose and ordinary pantyhose.
References:
Baidu encyclopedia-pantyhose