Dyeing Oxford spinning production process
Dyeing Oxford spinning production process
Dyeing the weft-heavy flat or square weave fabric interwoven with Oxford polyester dilute mixed yarn and forest yarn, using the different dyeing properties of polyester fiber and cotton fiber, hot-melt dyeing with disperse dyes can achieve better results. The article introduces the production process of dyed Oxford fennel in detail. The pre-treatment using the alkali-oxygen one-bath method can further reduce costs, and mercerization can make the fabric weft yarn (cotton) obtain a long-lasting luster, making the dyed Oxford fennel have the style of yarn-dyed Oxford fennel
Pre-treatment Oxford cloth dyeing Oxford spinning consists of polyester-cotton blended yarn and pure cotton yarn (thread). In addition, many disperse dyes will melt and weave when baking and fixing, and use the different dyeing of polyester fiber and cotton fiber. Performance, chemical, forming a very thin layer of molten dye on the fiber surface, where it is dyed and finished. Like yarn-dyed Oxford spinning, it has the same color state and is easier to transfer to polyester through contact points, giving the fabric its unique style. It has a soft feel, good hygroscopicity and is easy to wear. Therefore, after fixation, most of the dye is dyed on the polyester fiber and is comfortable, further improving the stiffness and durability of the fabric. A small amount is adsorbed on the cotton fiber, and then fully restored, cleaned and soaped to reduce the production cost and fast delivery. Very popular with customers. Washing and other treatments can ensure the whiteness of the cotton component and make the cloth surface have a clear color point effect. 1. Process principle 2. Production process flow formulation The dyed Oxford spinning produced in this production is made by interweaving polyester-cotton blended yarn and cotton yarn (thread). The weft weight flat or square weave fabric.
The basic composition of cotton fiber is mainly cellulose linear macromolecules linked by many glucose residues. It contains active groups such as free light radicals, which can adsorb and combine with ionic dyes (or leuco bodies). It is non-ionic. Disperse dyes cannot be dyed; polyester fiber has a tight structure, is hydrophobic and thermoplastic, and needs to be dyed with disperse dyes. When the temperature is high, the movement of the molecular segments in the amorphous region of the fiber is very violent, which can produce large enough instant holes. At the same time, the thermal movement of dye molecules is also intensified, so the dye can be dyed quickly. When Oxford spinning uses disperse dye hot-melt dyeing process, because cellulose has higher water absorption than polyester, most of the dye remains on the cotton fiber after padding in the dyeing solution.
During heat dissolution and color fixation, the dye adsorbed on the cotton fiber sublimates. The sublimated dye has a higher affinity to the polyester fiber than the cotton fiber, so the dye can be transferred from the cotton fiber to the nearby polyester fiber and fixed. Since there are many contact points between the two fibers inside the fabric, especially the blended yarn part, the dye can be directly transferred from the cotton fiber to the polyester fiber through the contact points 1. Fabric weave specifications (1) (455+455)X215,100 And 50,44 inches; warp: polyester cotton (65:35), weft: pure cotton. (2)(455+455)X325/2,100 and 50,44 inches; warp: polyester cotton (65:35), weft: pure cotton. (3) (325+325) Yi 165, xoo and 50, 44 inches; warp: polyester cotton (65, 35), weft: pure cotton. 2. Process flow: gray fabric sampling, turning, printing, sewing ~ singeing ~Returning, expanding, tampering and editing) – “light shaping and dyeing” – soft tenter ~ pre-shrinking ~ code inspection, grading, packaging 3. Process conditions and requirements 1. Turning, printing, sewing ( l) The cloth is turned over neatly, each box is about 12O0m, and the head is pulled out from the outside of the box in September 1994 to facilitate sewing. (2) When printing, the seal should be placed 10 to 1 sem away from the tip of the cloth on each box. (3) The seam head is straight and firm, the needle density is 35~40 stitches/loem, the two sides are dense, and the tail thread is about sem.
2. Singing (1) process brushing ~ singeing ~ padding and desizing solution (2) speed 90-looni/min, two forward and two reverse, the smoothness reaches level 3 or above. (3) Desizing liquid prescription (g/L) 100, without NaOll10-12 penetrant HB-182 padding temperature (℃) 70 ± 53. Desizing (1) Process (singing and alkali rolling) ~ stacking 1, Hot water washing ~ water washing (2) moisturizing and stacking 211 (3) hot water washing temperature 80 ~ 90 ℃ 4. scouring (l) process padding scouring liquid ~ steaming ~ water washing (2) scouring liquid prescription (g/L) 100%Naor{20-25 penetrating agent HB-182NaIJSO. 2(3) Soda rolling speed 4G~45m/mi: fly (4) Steaming temperature 95~100℃, steaming time: 50-60min 5. Bleaching (l) process padding bleaching liquid ~ steaming ~ washing (2) Bleaching liquid prescription (g/L) 100% HzO: 3-3.5 Stabilizer ARZ penetrating agent HB-182 Use NaOH to adjust the pH value to 10.5-11 (3) Steaming temperature 95-100℃ Steaming time 6omin (4) The cloth wool effect is 10~12em/3omin6. In order to reduce consumption, the alkaline oxygen bath can also combine the three deboiling and bleaching methods into one, but water washing should be strengthened. Detergent 59 should be added to the third flat washing tank after leaving the steamer. /L to ensure that decomposed slurry, impurities, etc. are washed away. (1) Process padding working fluid ~ steaming ~ water washing (2) working fluid prescription (g/L) 100% HZO: 10 high-efficiency stabilizer During steaming, I can be 60~7omin (4). The drop cloth pH value is 7-8, and the wool effect is 8-loem/30min. 7. After mercerizing, the cross-section of the mercerized cotton fiber changes from a flat waist shape to a round shape, and the longitudinal distortion disappears. It turns into a very smooth cylinder. It reflects light regularly, giving the cotton yarn a durable luster. After dyeing and finishing, the white and shiny cotton yarn can more fully exhibit the color point effect.
(1) Process: padding with alkali solution ~ cloth ventilation, padding with alkali solution ~ widening rinse ~ steaming ~ hot water washing ~ (neutralization) ~ water washing (2) padding alkali concentration 100 Imaishi Na () 1122 () 1. The alkali temperature of 2309/I sand washing is about 70’C, and the temperature of the alkali removal box is higher than gOC. (3) Vehicle speed 4Om8ni: 1 (4) Drop cloth pH value 78. Shaping can eliminate wrinkles on the fabric, improve dimensional stability, and improve the strength, feel and dyeing performance of the fabric to a certain extent. (l) Vehicle speed 40-45m/min (2) Front zone temperature 190-195℃, rear zone temperature 195~200℃. (3) The drop cloth width is 113-114em, and the drop cloth temperature is lower than 50’C. (4) Warp direction overfeeding 3% 9. Dyeing (l) process pad dyeing solution ~ infrared pre-baking ~ hot air drying ~ drying cylinder drying ~ baking ~ padding reduction cleaning.� Steaming ~ 5 grids of water ~ soaping ~ hot water washing ~ 2 grids of water washing ~ drying Printing and Dyeing Volume 20 Issue 9 Vehicle Speed 1 The baking temperature depends on the dye, and the steaming temperature is 100~102℃. (3) Examples of dye liquor prescriptions (g/L) 1″ Pink Dispersed Red 3B1.2JFCI Baking temperature 190~195℃ Concentrated 15% at initial start-up 2″ Light Blue Dispersed Blue ZBLN36 Dispersed Golden 3RL0.16JFCI Baking temperature 190~195 ℃ Concentrate 15% (4) Reduction cleaning solution prescription (g/L) 36OB and NaOH 48mL/L 85%H/526 Titration requirements 100% Na0H18-20 100%H/520-22 (5) Add net to the soaping box at the beginning skg of detergent, Ikg will be added to each vehicle in the future, and the long steamer will be changed to hot water for washing.
10. Soft tenting can make the fabric feel soft and plump, the width of the fabric can be neat, the weft skew can be corrected, and a more stable size can be obtained to meet the specifications of the finished product. I am finishing on the LMH723-180 short-ring drying tenter. (l) Process padding finishing liquid ~ short ring drying and tentering (2) Finishing liquid prescription (g/L) Softener RC10 (3) The temperature of the front zone is 150-155℃, and the temperature of the rear zone is 155-160`C. (4) The drop cloth width is 112~113em, and the drop cloth temperature is lower than 50℃.
11. Pre-shrinking can reduce the shrinkage rate of finished products and improve the intrinsic quality of products. (l) Process cloth feeding ~ steam moistening ~ rubber blanket pre-shrinking machine and drying cylinder loose drying ~ cloth dropping (2) Rubber blanket temperature 60~70℃ (3) Vehicle speed 30-35m/min IV. Summary 1. Dyeing oxford fabric has the style of yarn-dyed fabric, but has low cost, short cycle and fast delivery. 2. The pretreatment adopts alkali-oxygen one-bath method, which can further reduce costs and improve economic benefits. 3. Mercerizing can give the fabric weft (cotton) a durable luster, highlighting the Oxford style. 4. After Oxford spinning is dyed, its added value can be increased through deep processing such as washable and wearable finishing. This is also an area where this process needs to be improved. O uniform (continued from page 35) fatty acid sodium salt has defoaming and emulsifying effects. Used for continuous refining, its nonionic part is polyether, and its general formula is as follows: RO (CHZCHZO yaichinon CHCHZO). H changes the n and m values, and the corresponding HLB value also changes accordingly, forming a polyether mixture with different HLB values. If the HLB value is in the range of 8 to 15, they have the functions of wetting, penetrating, softening and Solubilization. L62L6L64P65CH3
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