I. Introduction Environmental protection, energy conservation, is the only way to clean production sustainability printing and dyeing industry, the traditional high alkali pre-treatment process, since the alkali agent used is too large, the amount of working fluid scouring large, resulting in high energy consumption of steam, water CO D value High processing difficulties, large amounts of alkali chemicals make washing difficult , and desizing machines have a large amount of water . At the same time , the high temperature scouring of a large number of alkaline agents can easily cause problems such as weight loss of fabrics, alkali spots , creases , air-drying and anti-blemish spots , hard texture of fabrics , and low dye uptake . Low scouring low amount of additives, low energy consumption, scouring short total time, easy to clean, saving a lot of water, low effluent COD values, reducing the cost of waste water treatment, the quality of the semi-finished product excellent bleaching high capillary effect, whiteness, The weight loss of the fabric is low, the dyeing rate is high, the color is full, pure and uniform, and the hand feels soft. It is important to eliminate the oxygen drift hole. This experiment compared the physical index semifinished fabric treatment process and before the impact of traditional bleaching processes prior to treatment with low-temperature dyeing properties, low temperature bleaching process is used to provide a reference. Second, the experimental part 2 . 1 experimental materials Fabric: C40 × 40 133 × 100 63" plain fabric C40 × 40 143 × 112 63" twill fabric C32 × 32+40D 190 × 80 4 / 1 57 /8" Straight Fabric Additives: caustic soda, 880 scouring agent, penetrant TA-1, ammonium persulfate, dispersion chelating agents, dewaxing agent WR, sodium sulfite, water, dioxygen, P stabilizers, sodium silicate, an alkaline agent practice QR2012, voiding agents play (training olein) QR2010, high temperature penetrant QR-750C, a low temperature drift activator Weibiling QR2020 2 . 2 indicators test Breaking strength: Refer to ASTM D5034-95 (2001) " Testing for Fracture and Extensibility of Textiles " Tear strength: Refer to ASTM Dl424-96 (2001) "Evaluation of Tear Strength of Fabrics by Impact Pendulum Method of Textiles" Dry/Wet Friction Fastness: Refer to AATCC8-2005 " Color fastness to textiles for experimental fastness to rubbing" The original change / white fastness: refer to AATCC61-2A "Textile color fastness test American standard wash fastness" Whiteness: Refer to DATACOLOR Colorimeter CIE Whiteness Measurement 2 . 3 Traditional pretreatment scouring process 2 . 3 . 1 Process flow : Slotting → padding alkaline working solution → rolling (5-6h) → four-grid washing → padding scouring working fluid → steaming (98 °C X 5min) → flat washing tank four-grid hot water washing → one Cold washing → padding oxygen bleaching working fluid → steaming (98°CX20min) → hot water washing → cold water washing → grilling 2 . 3.2 Process conditions analysis: 1 , rolling: process prescription: NaOH 35-40g /L Scouring agent 880 6g /L Penetrant TA-1 2g /L Ammonia persulfate 0.6g/L Dispersing chelating agent 2g /L Vehicle speed: 50m / min, feed temperature of 75-80 deg.] C, feed roll temperature 60-65 deg.] C, coiling process is easy to note from the control bankbook, plastic sheeting wrapped tightly curled after rotation for 5-6 hours. Traditional scouring process Process prescription: NaOH 55-60g /L Scouring agent 880 12-14g /L Wax Remover WR 3 g /L Dispersing chelating agent 4 g/L Sodium sulfite 4 g/L Steamer temperature 98-100 °C , steaming 35min . Pure cotton high-count and high-density fabrics, under such high alkali concentration and high temperature treatment , can easily cause weight loss of the fabric, as well as stencils, track marks, alkali spots, and feel hard to affect the quality of the finished product. 2 , traditional oxygen bleaching process Process prescription: NaOH 8-10g /L Hydrogen peroxide 5-6g /L Scouring agent 880 6-8g /L Stabilizer P 8g /L Water glass 5g /L Ammonium persulfate 1g /L Dispersion Mixture 5g /L Steamer temperature 98-100 Nondisposable Table Coth,No Staining Table Cloth,Practical Table Cloth,Breathable Table Cloth SHAOXING CITY JINYAO TEXTILES CO.,LTD , https://www.jinyaotextile.com