According to China's product standards and the actual use of fabric,
clothing (ornaments) and home textiles products, color fastness test,
generally according to the following methods:
1、 fabric classTest the color fastness to wash the fabric, generally according to its end use to choose the washing method. In the case of unknown use, according to the following methods:① wire, viscose fiber, wool, nylon fabric, with reference to GB / T392l a 2008A (1), the test temperature is (40 ± 2) ℃.② cotton, linen, polyester, acrylic fabric, with reference to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.③ new fiber, such as Lyocel fiber, Modal fiber, milk protein fiber and soybean protein fiber, should be based on fiber performance and dyeing process may be, generally use GB / T3921-2008A (1) standard, the test temperature is (40 ± 2) ℃.
2、 clothing (ornaments) class(1) knitted garments knitted casual wear, body underwear, thermal underwear, knitted skirts, infant knitted apparel, socks and bra and other products, are referred to GB / T3921-2008A (1), the temperature is (40 ± 2) ℃. However, in cotton knitwear, cotton knitted underwear, except T-shirt (except nylon), knitted sportswear and linen knitwear should refer to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.(2) wool knitwear sweater according to the washing requirements of the use of GB / T12490-2007 A1S or B2S method, hand wash selection A1S procedures, machine wash selection B2S procedures; low wool and wool knitwear, cashmere sweater selection GB / A1S test conditions in T12490-2007.(3) Woven clothing denim clothing, single clip clothing, skirt, baby clothes and jackets, use GB / T3921-2008C (3) method, the test temperature is (60 ± 2) ℃; but the composition of silk, (40 ± 2) for GB / T3921-2008A (1) method, for the use of GB / T3921-2008A (1) method for the use of GB / T3921-2008A (1) method for single knitwear, skirts, baby clothes and jackets (including jackets for nylon fabrics) ℃. Wind and rain clothing, silk clothing selection GB / T3921-2008A (1).
3、 home textiles category(1) towels and bedding according to the relevant industry standards, towels, bedding washing fastness test according to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.(2) decorative fabric washing fastness test method, according to GB / T12490-2007 A1S conditions, if the product is used on the instructions for the gentle washing or hand washing, the test without steel beads. Suggest(1) test the color fastness of textiles, according to the standards and trade needs to choose the washing method and stickers, domestic trade can choose single fiber stickers, foreign trade commonly used multi-fiber stickers.(2) test samples to be representative, especially the printing products to ensure that each color is taken, the rating should pay attention to the corresponding color of the pattern.(3) The combination sample is a short side suture, when the sample is yarn or scatter, the sample is half the total mass of the fabric, along the four sides suture.(4) test solution should be preheated to the test temperature, otherwise it will affect the test results.(5) rating, the eyes should be perpendicular to the sample, the light source and the sample into 45. , The distance is maintained at 30 ~ 40cm; for shiny samples, the light source is vertical, eyes and samples into 45.
1、 fabric classTest the color fastness to wash the fabric, generally according to its end use to choose the washing method. In the case of unknown use, according to the following methods:① wire, viscose fiber, wool, nylon fabric, with reference to GB / T392l a 2008A (1), the test temperature is (40 ± 2) ℃.② cotton, linen, polyester, acrylic fabric, with reference to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.③ new fiber, such as Lyocel fiber, Modal fiber, milk protein fiber and soybean protein fiber, should be based on fiber performance and dyeing process may be, generally use GB / T3921-2008A (1) standard, the test temperature is (40 ± 2) ℃.
2、 clothing (ornaments) class(1) knitted garments knitted casual wear, body underwear, thermal underwear, knitted skirts, infant knitted apparel, socks and bra and other products, are referred to GB / T3921-2008A (1), the temperature is (40 ± 2) ℃. However, in cotton knitwear, cotton knitted underwear, except T-shirt (except nylon), knitted sportswear and linen knitwear should refer to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.(2) wool knitwear sweater according to the washing requirements of the use of GB / T12490-2007 A1S or B2S method, hand wash selection A1S procedures, machine wash selection B2S procedures; low wool and wool knitwear, cashmere sweater selection GB / A1S test conditions in T12490-2007.(3) Woven clothing denim clothing, single clip clothing, skirt, baby clothes and jackets, use GB / T3921-2008C (3) method, the test temperature is (60 ± 2) ℃; but the composition of silk, (40 ± 2) for GB / T3921-2008A (1) method, for the use of GB / T3921-2008A (1) method for the use of GB / T3921-2008A (1) method for single knitwear, skirts, baby clothes and jackets (including jackets for nylon fabrics) ℃. Wind and rain clothing, silk clothing selection GB / T3921-2008A (1).
3、 home textiles category(1) towels and bedding according to the relevant industry standards, towels, bedding washing fastness test according to GB / T3921-2008C (3), the test temperature is (60 ± 2) ℃.(2) decorative fabric washing fastness test method, according to GB / T12490-2007 A1S conditions, if the product is used on the instructions for the gentle washing or hand washing, the test without steel beads. Suggest(1) test the color fastness of textiles, according to the standards and trade needs to choose the washing method and stickers, domestic trade can choose single fiber stickers, foreign trade commonly used multi-fiber stickers.(2) test samples to be representative, especially the printing products to ensure that each color is taken, the rating should pay attention to the corresponding color of the pattern.(3) The combination sample is a short side suture, when the sample is yarn or scatter, the sample is half the total mass of the fabric, along the four sides suture.(4) test solution should be preheated to the test temperature, otherwise it will affect the test results.(5) rating, the eyes should be perpendicular to the sample, the light source and the sample into 45. , The distance is maintained at 30 ~ 40cm; for shiny samples, the light source is vertical, eyes and samples into 45.
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