HOW TO IDENTIFY THE OUTDOOR CLOTHING FABRIC IS GOOD OR BAD?
Outdoor clothing fabrics: generally by the nylon, polyester and other chemical fiber fabric after processing: waterproof, calendering, dry and wet coating, film composite and other technology, with waterproof, moisture, breathable, warm, water pressure, anti-ultraviolet Various functional fabrics. How to achieve these functions? Function refers to the processing of multi-channel process to achieve the textile fabric has the product performance, after processing involved in the special links, how to do these outdoor fabrics, first of all from the source grabbed, the source is the textile printing and dyeing factory.
(1) yarn: the quality of the yarn quality determines the quality of the fabric, the strength of the fabric to determine the quality of tearing. (Chemical fiber yarn used to represent D, denier number, the international commonly used to indicate the fineness of chemical fiber and natural silk; tear: the better the strength of the test yarn, wear resistance, better resistance, in the Wild environment to protect the body's role).
(2) Textile: yarn in the textile machinery weaving into the fabric process, adjust the machine, to reduce the fabric crossing, broken by the weft, holes, deduction and other defects.
2, printing and dyeing
Dyeing and finishing plant color must be in the acceptance range, and can not have yin and yang color, fabric quality qualified, the other is to talk about important physical performance test:
(1), feel: soft, outdoor clothing fabric feel some of the more rigid, the current development of new products feel improved, but outdoor leisure than outdoor sports fabric to be more soft.
(2), weft oblique: American standard test standard ASTMD3882 dyeing cloth requirements are effective width of 3%, lattice cloth and printing cloth requirements is effective width of 2% for qualified products. (Latitude, if more than the US standard range easily lead to clothing after washing deformation distortion, lattice cloth printed cloth grid asymmetry, unsightly).
(3), density: American standard test ASTMD3775 requires latitude and longitude density within ± 3% qualified.
(4), weight: American standard test ASTMD3776, required within ± 3% qualified.
(5), PH: American standard test AATCC-81 requires 4.5-7.5 (weak body acidic, so the provisions of the weak acid range for the human body, if the alkaline, the skin is susceptible to dry and uncomfortable).
(6), tear strength: American standard test ASTMD1424, according to the specific requirements of different varieties of fabric (tear with kilograms KG, pounds LB, Newton N said its cloth latitude and longitude test value, tear good or bad, affecting the clothing resistance Wear wear resistance).
(7), elongation strength: American standard test ASTMD5034, according to the specific requirements of different varieties of fabric (with kg KG, pounds LB, Newton N said its cloth latitude and longitude test values, elongation strength is good or bad, affecting clothing wear Wear resistance).
(8), seam slip: American standard test ASTMD434, according to the specific requirements of different varieties of fabric (with MM that its test value, seam strength is good or bad, affecting the clothing patchwork slip).
(9), shrinkage: American standard test AATCC-135 requires latitude and longitude to ± 3%, (shrinkage if more than 3%, affecting the clothing wearing a few times after washing the size of the deformation).
(10), light fastness: American standard test AATCC-16E requirements: a specific lamp 20 hours irradiation 4, 40 hours irradiation level 3 (mainly resistant to sunlight, generally wearing outdoor clothing in skiing, mountaineering outdoor sports to prevent the sun Exposure is not easy to change color, in case of danger, its eye-catching clothing color, waiting for rescue convenience).
(11), friction color fastness: American standard test AATCC-8 requirements: dry grinding 4, wet grinding 3. (This requires the degree of fading of the fabric).
(12), water fastness: American standard test AATCC-107 requirements: discoloration 4, stained 3. (This requirement through the cotton, nylon, polyester, wool, acrylic, vinegar and other cloth test to see the color change, stain rating).
(13), machine washing color fastness: American standard test AATCC-61-2A requirements: color 4, stained 3. (This requirement through the cotton, nylon, polyester, wool, acrylic, vinegar and other cloth test to see the color change, stain rating).
(14), perspiration color fastness: American standard test AATCC-15 requirements: color 4, stained 3. (This requirement through the cotton, nylon, polyester, wool, acrylic, vinegar and other cloth test to see the color change, stain rating).
AATCC and ASTM are the United States test standards, JIS for the Japanese test standards, ISO for the European testing standards, GB for the Chinese standard, the international standard for the United States most standards, the Chinese national standard test requirements for the lowest value.
Color fastness: that the fabric fabric color fastness, up to 5, the lowest level 1, judge the color level is the standard gray card.