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锦纶织物泡沫印花色浆的制备及其对印花性能的影响

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针对泡沫印花中泡沫破裂较多会影响印花图案质量的问题,为减弱泡沫破裂造成的影响,制备了不同质量分数的泡沫色浆,借助于显微镜观察了不同条件下制备泡沫的特点,以及泡沫随放置时间的破裂情况,并测试分析了不同放置时间下印花织物的表观色深(K/S值)和色牢度.结果表明:不同质量分数的糊料在搅拌速度为1 500 r/min下搅拌 20 min后,泡沫色浆均能够达到最大体积;当糊料质量分数较高时,制备的泡沫色浆均匀度差,泡沫直径分布范围大;当糊料质量分数为 4%时,泡沫尺寸分布相对均匀,印花时色浆流动性好,印花后织物轮廓清晰,网板残留少;泡沫色浆在放置不超过 20 min时,泡沫破裂程度较小,印花织物的K/S值稳定,色差小;泡沫印花织物的耐水洗色牢度、耐摩擦色牢度、耐汗渍色牢度和耐皂洗色牢度均达到 4 级以上,满足服用要求.
Preparation of foam printing paste for polyamide fabrics and its influence on printing performance
Objective Conventional printing methods are characterized by high water consumption and high energy consumption.In order to promote green and low-carbon development and reduce pollution,new printing technologies that save water and energy should be developed.Foam printing is a low-liquor ratio dyeing through the air instead of water as the dye solution,and the foam produced by the combination of these two elements is utilized for printing,so as to achieve water-saving,energy-saving,paste saving,and soft fabric hand.This research aims to prepare foam printing paste and to evaluate its printing performance.Method By observing and analyzing the foam morphology and combining it with the corresponding printed fabrics,the influences of paste concentration and foam placement time on printing performance were analyzed with using indicators such as the uniformity of foam diameter and the K/S value of the printed fabrics.Factory paste was used as the experimental raw material,and high-definition microscope and X Rite color tester were adopted to observe the foam diameter and the K/S value of the fabrics respectively.Results The results showed that at the same stirring speed,the foam volume decreased with higher paste concentrations.Observation under a high-definition microscope revealed that the average diameter of the foam bubbles became larger and the degree of homogeneity decreased as the paste concentration increased.At a certain paste concentration,the diameter of the foam bubbles gradually increased and the volume slowly decreased with the increase of the placement time.The higher the paste concentration,the slower the increase rate in diameter and decrease in quantity of foam bubbles.In terms of printing performance,with the increase of paste concentration,the K/S value of the printed fabric showed a tendency to increase initially and then decrease.The color paste residue on the upper edge of the printing screen increased with increasing paste concentration,and the printing pattern became better defined.In the study of the influence of foam placement time on K/S values,the K/S and color difference values of 4%paste concentration were found the most stable,which represents minimal changes in placement time.When the mass fraction of paste is 4%,the foam size distribution is relatively uniform,the fluidity of the printing paste is good,the outline of the printed fabric is clear after printing,and the screen residue is less.When the prepared foam color paste is placed for shorter than 20 min,the degree of foam rupture is smaller,and the K/S value of printed fabric is stable,as well as the color difference is smaller.The wash fastness,rubbing fastness,perspiration fastness,and soaping fastness of the foam printed fabrics could all reach above grade 4,meeting the requirements of use.Conclusion In this study,foamed color pastes with different mass fractions were prepared,and the characteristics of foams prepared under different conditions were observed by means of microscope.Meanwhile,the printing fabric's K/S value and color fastness were tested and analyzed at different time,which effectively solved the problem that the printing pattern quality would be affected by more foam breakage in foam printing,and reducing the influence caused by more foam bursting.This observation has a strong guiding significance for the implementation of polyamide fabric foam printing process.

polyamide fabricfoam printingfoam stabilityprinting color pastepasteprinting propertyprinting quality

郑小佳

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海西纺织新材料工业技术晋江研究院,福建 泉州 362200

锦纶织物 泡沫印花 泡沫稳定性 印花色浆 糊料 印花性能 印花质量

2024

纺织学报
中国纺织工程学会

纺织学报

CSTPCD北大核心
影响因子:0.699
ISSN:0253-9721
年,卷(期):2024.45(11)