Effect of elastic composite weaving process and adhesive on dye fastness of paint
The effect of elastic composite weaving process and adhesive on the dyeing fastness of coatings The choice of cationic modifiers is based on the comparison of two different molecular structures of cationization modifiers on the market. The results show that the cations of two different chemical components are modified. Sex agent performance comparison auxiliaries name chemical composition appearance ionic pH value process requires cationic modifier A
Epichlorohydrin amino derivative colorless transparent mucilage cation 6-7 cationization process: 60 ° C, neutral coating dyeing process: 60 ° C, neutral cationic modifier B
Modified high molecular weight polyethylene amine yellow brown mucilage cation 7-9 cationization process: 60 ° C, pH 8.5 coating dyeing process: 60 ° C, pH 9.02 Two cationic modifiers for dyeing depth of the coating Effect of fastness and auxiliaries name amount/% coating K/S value rubbing fastness brushing fastness dry friction wet color white cation modified A
4 blue 19.32
3 2——3 4——5 4 green 15.74
3 2——3 4 3——4 red 24.45 3——4 2——3 4——5 3——4 cation modified B
4 blue 20.62
3 2——3 4——5 4 green 17.34 2——3 2——3 4 3——4 red 26.12
3 2——3 4——5 3——4
It can be seen from 1, 2 that although the chemical composition and process conditions of the two are different, the effect on the dyeing fastness of the coating after dyeing is not significant; but from the viewpoint of color yield, the cationic modifier B
K/S
The value is slightly higher than that of the cationic modifier A. 2.2 The amount of cationic modifier increases the concentration of cationic modifier, and the positive charge on the fiber also increases, which is beneficial to the electrostatic adsorption of the coating on the fiber. Since the amount of reactive groups on the fiber is constant, the uptake rate of the cationic modifier increases to a certain concentration, and the amount of the cationic modifier is limited. The effect of the amount of cationic modifier on the dyeing depth and fastness of the coating is shown in 3. 3 The effect of the amount of cationic modifier on the dyeing depth and fastness of the coating. Modifier dosage /%K/S value Rubbing fastness Drying fast Moisture and Moisture White Dip 0 19.24 2 2 2——3 2——31 23.10 2 2——3 3 32 24.52 2——3 2——3 4 33 25.46 3 2—— 3 4——5 3——44 26.12 3 2——3 4——5 3——45 25.03 2——3 2 4——5 3——4
It can be seen from 3 that with the increase of the amount of cationic modifier, the K/S of the dyed fabric of the paint
The value gradually increases and then decreases. In the range of 3% - 4%, the adsorption between the fabric and the coating after cationization is saturated, and the various fastness indicators are also improved. Therefore, the optimum amount of modifier is 3% - 4%. 2.3 The effect of dispersant on dyeing performance is known from 4, when 0.1, 0.5, 1.0g/L dispersant IS or flattening plus O is added to the dyeing of the coating, the adsorption depth of the coating is Variety. This may be because the hydrophilicity of the fiber is further improved after the cationization of the yarn. When a certain amount of surfactant is added, in addition to the fiber rewetting and expanding, the dispersibility of the coating particles is also improved, and the affinity of the coating and the fiber reaches an equilibrium point. In addition, it is known from the experiment that the addition of 0.5 g/L of dispersant IS has a certain effect on improving the color yield of the dyeing of the paint and improving the color flower. 4 Effect of dispersant and surfactant on dyeing depth and fastness of paint Test No. 1
2 3 4 5 6 7 Dispersant IS
0.1 0.5 1.0 flat plus O
0.1 0.5 1.0K/S value 26.12
26.71 27.02 26.65 26.60 26.82 26.62 dry rubbing fastness 3
3 3 3 3 3 3 wet rubbing fastness 2 - 3
2——3 2——3 2——3 2——3 2——3 2——3 brushing discoloration 4——5
4——5 4——5 4——5 4——5 4——5 4——5 brushing white dip 3——4
3——4 3——4 3——4 3——4 3——4 3——4 Uniformity is generally good, good, good, good, good, good, good, good, good, good, good, good, good, good It plays a certain role in the dyeing process of the paint, which contributes to the improvement and improvement of the fastness. Comparing the use of three kinds of adhesives at 20-30g/L, the dry and wet rubbing fastness grades of the three adhesives are relatively close; the fading rate of self-crosslinking acrylic copolymer adhesives is seen from the change of fading degree. Better than polyurethane adhesives, adhesive CS> adhesive AH>
The adhesive U; the hydrophilic polyurethane has the best effect from the hand feeling effect, and the acrylic adhesive tends to be stable as the amount is increased, but the softness of the hand feeling is lowered. Therefore, the adhesive CS is selected. The elastic composite weaving process uses the compound knitting and weaving technology that has applied for the national invention patent, and the functional fiber yarn and the knitted denim yarn are effectively compounded and woven together to fully reflect the design function of the fabric and the natural characteristics of the raw materials and the rationality of the matching. . It gives the fabric a cowboy-style appearance to the greatest extent, and also has the function of moisture absorption, perspiration, antibacterial and deodorization, and self-release of negative oxygen ions. Moreover, the added elastic material can make the fabric have reasonable two-way elasticity and soft, close-fitting comfort, which is the best choice for making fashionable tight-fitting clothing and close-fitting clothing and supplies. Composite weaving of moisture wicking and quick-drying elastic knit denim fabric 3.1.1 Moisture wicking and quick-drying fiber fineness selection The moisture wicking and quick-drying polyester fiber with fineness values ​​of 83, 111 and 166.7 dtex were tested respectively. The effect of silk yarn on the moisture absorption index and style of the fabric, the results see the effect of different adhesives on the dyeing depth and fastness of the adhesive. The main component of the adhesive type / g · L - 1 rubbing fastness dry friction wet fading Rate/% Handling Adhesive CS Soft Coating Dyeing Self-crosslinking Acrylic Copolymer Emulsion 10
2 2 10.5 Good 20 3 2——3 8.4 Good 30 3 2——3 5.3 Better Adhesive AH Low Temperature Coating Dyeing Self-Crosslinking Butyl Acrylate Polymer Emulsion 10
2——3 2 10.2 Good 20 3 2——3 8.1 Better 30 3——4 3 5 General Adhesive U Coating Rubbing Fastness Improver Hydrophilic Polyurethane 10
2 2——3 11 good 20 2——3 2——3 9 good 30 3 2——3 5.9 Effect of moisture absorption and quick-drying polyester fiber with different fineness values ​​on fabric properties Variety number 1
2 3 functional fiber fineness / dtex 83 111 166.7 fabric weight / g · m - 2 260 280 300 fabric width / cm 155 158 160 functional fiber content /%
11 15 19 moisture wicking index fabric water absorption rate /%
200 208 220 fabric drip diffusion time / s
2.4 2.3 2 fabric wicking height / mm (horizontal) 159 163 172 (longitudinal) 151 156 166 water evaporation rate / g · h -1 0.24 0.26 0.3 product style is good and good It can be seen that with the moisture wicking quick-drying fiber fineness value and its content in the fabric, the moisture wicking and quick-drying ability of the fabric is stronger. It has little effect on the other physical indexes of the fabric, and the moisture wicking and quick-drying indexes of the above fabrics all meet the national standards. 3.1.2 Composite structure design Knit composite elastic denim fabric usually adopts the following structures: twill type, large loop type, small loop type, convex strip type, square format, vertical strip type and bead type. According to the function and use of the fabric, a small looped composite structure was selected for the following reasons: (1) The looped composite structure clearly separates the two main composite materials into layers, completely ensuring the moisture absorption row. The quick-drying fibers of the sweat are all located on the wearing surface of the fabric, so that the fabric absorbs moisture and wicks quickly during the wearing process to maximize the function. (2) The looped surface of the looped composite structure fabric has a soft terry float line, which can increase the comfort during wearing and feel good. (3) Small looped composite structure Larger looped composite structure has more denser composite points, and the composite yarn can be used to quickly introduce water molecules on the moisture-absorbing and quick-drying fibers to the fabric surface. And evaporation, the fabric can be dry on the body. (4) Since the moisture wicking and quick-drying fiber is a filament yarn, the loop section with a small loop is not easy to hook and pilling compared with the long loop, thereby ensuring the proper use effect. 3.1.3 On-machine process (1) Equipment WP/3.0F single-sided four-track knitting machine produced by Taiwan Bump Company, machine number 24 needles/25.4mm; cylinder diameter 864mm (34 inches); weaving system 102F; woven track cylinder 4 track; machine speed 22r / min; machine total knitting needle number 2 544. (2) using 28 tex pure cotton combed knit denim yarn; 166.7 dtex moisture wicking quick-drying fiber filament yarn; 22 dtex spandex elastic fiber filament yarn. (3) Weaving results (1)1 Weaving results of moisture wicking and quick-drying stretch fabrics (4) Triangulation of braiding system (7) (5) Weaving process parameters Weaving coil length: 335mm/100 stitches of the first and third weaving systems; The 2nd and 4th knitting systems are 140mm/100 needles; the 1st and 3rd knitting systems are 120mm/100 needles. (6) The bending depth of the loop is woven at a depth of 1.5 mm; the depth of the woven loop is 1.2 mm. (7) Yarn input mode The first and third knitting systems input 28tex cotton combed knit denim yarn; 2, 4
The weaving system inputs 166.7 dtex moisture wicking quick-drying fiber filament yarn; the first and third weaving systems input 22 dtex spandex elastic fiber filament yarn. (8) Braiding tension tension coefficient of 3.5. The tension is pulled to be as small as possible on the basis of ensuring normal weaving, so as to prevent excessive operation and increase the weight of the equipment, and accelerate the wear of the knitting needle and the lower needle cylinder. (9) Raw material weaving with a proportion of 28tex cotton combed knit denim yarn 78%; 166.7dtex moisture wicking fast drying fiber 19%; 22dtex spandex elastic fiber 3%. (10) Physical parameters of the fabric The square weight of the fabric blank is 260 g/m2; the square weight of the fabric light blank is 300 g/m2; the width of the fabric blank is 160 cm. The number of braided systems of braiding system 1 2 3 4∧——∧∧∧∧∧——3.2 Composite weaving of antibacterial deodorant stretch knit denim fabric 3.2.1 Antibacterial deodorant fiber fineness selection Tianzhu Company The antibacterial and deodorizing function of the bamboo pulp fiber was tested. The effects of 18.5, 28, and 33 tex bamboo fiber yarn on the fabric performance and appearance style were tested. The results are shown in 8. 8 Different fineness values ​​of the antibacterial deodorant fiber yarn to the fabric. Effect of the product Variety number 1 2 3 Functional fiber fineness / tex 18.5 28 33 fabric weight / g · m - 2 290 320 330 fabric width / cm 160 170 180 functional fiber content /%
19.5 26 30 Antibacterial index E. coli inhibition rate /%
0 39.13 74.66 Staphylococcus aureus bacteriostasis rate /%
25.51 62.62 84.90 Candida albicans inhibition rate /%
10.10 51.06 78.21 The product style is good and good. It can be seen from 8 that with the increase of the fineness value of the bamboo pulp fiber yarn and its content in the fabric, the antibacterial ability of the fabric is stronger. Of course, the thickness of the yarn also has some influence on other physical indexes of the fabric, but can be satisfied by adjusting the knitting process parameters. And the antibacterial indicators of the above fabrics all meet the national standards. 3.2.2 Composite structure design According to the function and use of the fabric, the use of large loop type composite structure is selected for the following reasons: (1) The looped composite structure clearly carries out the two main composite materials. The layered and layered composite can completely guarantee that the bamboo pulp fiber with permanent antibacterial deodorizing function is located on the wearing surface of the fabric, so that the antibacterial and deodorizing function of the fabric can be maximized during the wearing process. (2) The terry-like composite structure of the fabric close-fitting surface has a soft terry float line, which can increase the comfort when wearing, and has a good feeling. (3) Large loop type composite structure The smaller loop type composite structure has a longer terry float line, which increases the content of functional fibers on the fabric surface, thereby enhancing the antibacterial and deodorizing function of the fabric. (4) Since the bamboo pulp fiber is a spun yarn, the hook and the pilling will not appear when worn close to the body, so the effect of use will not be affected. 3.2.3 On-machine process (1) Using equipment WP/3.0F single-sided four-track knitting machine produced by Taiwan Bump Company, machine number 24 needles/25.4mm; cylinder diameter 864mm (34 inches); knitting system 102F; braided track syringe 4 track; machine speed 22r/min; machine total knitting needle number 2
544. (2) using 28tex pure cotton combed knit denim yarn; 33tex 100% bamboo fiber yarn; 44dtex spandex elastic fiber filament yarn. (3) Weaving results (2) 2 Weaving results of antibacterial deodorizing stretch fabrics (4) Triangular arrangement of braiding systems (9) 9 Triangular arrangement of braiding systems Number of braiding systems 1 2 3 4∧——∧——∧[∧ ——∧——∧[kbIjaKo
Training Jogging Wear Women,Training Jogging Wear Men,Training Jogging Wear Fitness Gym,Men'S Sports T-Shirt
Shaoxing Yizhong Textile And Garment Co.,Ltd , https://www.yizhongsport.com