{"id":9240,"date":"2025-01-06T10:33:46","date_gmt":"2025-01-06T02:33:46","guid":{"rendered":"https:\/\/www.textile-fabric.com\/archives\/9240"},"modified":"2025-01-06T10:33:46","modified_gmt":"2025-01-06T02:33:46","slug":"causes-and-solutions-to-problems-with-yarn-dyed-fabrics-and-printed-and-dyed-fabrics-2","status":"publish","type":"post","link":"https:\/\/www.textile-fabric.com\/?p=9240","title":{"rendered":"Causes and solutions to problems with yarn-dyed fabrics and printed and dyed fabrics"},"content":{"rendered":"
\n
\n1. Causes and solutions to problems that may occur during the production process of yarn-dyed fabrics<\/section>\n<\/section>\n
\n
\n
\n
\n1<\/span><\/ section><\/p>\n
\n<\/section>\n<\/section>\n
\nWeaving defects<\/ span><\/section>\n<\/section>\n<\/section>\n

\n

There are Weaving defects in the warp or weft direction appear regularly or irregularly. <\/span><\/p>\n

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Main reason:<\/strong><\/span><\/p>\n

\u2460 Use yarn not strong enough. <\/span><\/p>\n

\u2461 Yarn The sizing is poor (light sizing or heavy sizing). <\/span><\/p>\n

\u2462 Defective weaving equipment (faulty weaving equipment will cause yarn breakage and other problems).<\/span><\/p>\n

\u2463 Get off the computer The repair of the gray fabric is incomplete. <\/span><\/p>\n

\u2464 The acceptance of finished products is not careful.<\/span><\/p>\n

\n

Solution: Strengthen repairs. <\/strong><\/span><\/p>\n

\n

\n
\n
\n
\n2<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nlatitude\/latitude Arc (including large and small cells)<\/span><\/section>\n<\/section>\n<\/section>\n

<\/span><\/span><\/p>\n

For woven fabrics and knitted fabrics, 2% weft inclination\/weft arc appears, and the sum appears greater than Any cloth with 3% distortion cannot be classified as first-class. <\/span><\/p>\n

\n

generated main Reason: <\/strong><\/p>\n

\u2460 Defective weaving equipment (When the weaving equipment is faulty, it will cause frequent downtimes, resulting in weft skew\/weft arc)<\/span><\/p>\n

\u2461 Mainly Refers to weft skew\/weft arc caused by poor finishing equipment). <\/span><\/p>\n

\u2462 Poor organization (Weft skew\/weft arc caused by operator’s irresponsibility during finishing). <\/span><\/p>\n

\n

Solution: Strengthen repair and rearrangement (weft correction). <\/strong><\/span><\/p>\n

\n

\n
\n
\n
\n3<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nHigh shrinkage<\/span><\/section>\n<\/section>\n<\/section>\n

The warp and weft of the fabric If the shrinkage rate exceeds the specified value, it cannot be classified as a first-class product. Different fabrics will have different ranges. <\/span><\/p>\n

\n

Main reason:<\/strong><\/span><\/p>\n

\u2460 Post-finishing bad. <\/span><\/p>\n

\u2461 Poor pre-shrinking device. <\/span><\/p>\n

\n

Solution: pre-shrink again (within the specified shrinkage rate)\/shrink and wash the fabric, etc. <\/strong><\/span><\/p>\n

\n

\n
\n
\n
\n4<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nThe feel is not as good as The standard sample is consistent<\/span><\/section>\n<\/section>\n<\/section>\n

<\/span><\/p>\n

The finished fabric The feel is inconsistent with that of the standard sample, and there is an obvious difference. <\/span><\/p>\n

\n

Main reasons:<\/strong><\/span><\/p>\n

\u2460 Poor finishing.<\/span><\/p>\n

\u2461 The raw materials are not correct. <\/span><\/p>\n

\u2462 Production process Incorrect. <\/span><\/p>\n

\n

Solution: Reorganize\/reproduce. <\/strong><\/span><\/p>\n

\n

\n
\n
\n
\n5<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nColor fastness is not Qualified<\/span><\/section>\n<\/section>\n<\/section>\n

<\/span><\/p>\n

Fabric (color The color fastness of woven fabrics and dyed fabrics cannot meet the requirements<\/span><\/p>\n

\n

Main generated Reason: <\/strong><\/span><\/p>\n

\u2460 Dyeing process bad. <\/span><\/p>\n

\u2461 The dyeing raw materials are defective.<\/span><\/p>\n

\u2462 Finishing bad. <\/span><\/p>\n

\u2463 Poor operation . (It is especially obvious when the paint is scratched\/stained)<\/span><\/p>\n

\n

Solution: re-fix the color\/re-produce the fabric\/re-dye (dyed fabric is ok)\/color correction (paint scraping\/paint-dyed fabric is ok). <\/span><\/span><\/strong><\/p>\n

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\n
\n
\n
\n6<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nFabric style cannot be combined with The standard sample is consistent<\/span><\/section>\n<\/section>\n<\/section>\n

There is an obvious difference between the style of the fabric and the standard sample (slub style\/segment dyeing style\/thickness, etc.). <\/p>\n

\n

Main reason:<\/strong><\/span><\/p>\n

\u2460 The raw materials are not Correct (slub yarn is incorrect\/yarn count is incorrect)<\/span><\/p>\n

\u2461 Incorrect production process (The process of segment dyeing is incorrect\/the arrangement of slub yarn or segment dyeing yarn is incorrect)<\/span><\/p>\n

\u2462 Finishing Incorrect process (when the raw materials and organization are correct, whether the finishing process is correct or not will affect the style of the fabric)<\/span><\/p>\n

\n

<\/strong>Solution: \u2460 Reproduce the fabric \u2461 Re-organize <\/span><\/strong><\/p>\n

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\n2. Causes and Solutions of Defects in Printed and Dyeing Fabrics (Dyeing Problems)<\/section>\n<\/section>\n
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\n
\n

1<\/span><\/section>\n

\n<\/section>\n<\/section>\n
\nskirt wrinkle<\/ span><\/section>\n<\/section>\n<\/section>\n

The wrinkle strips are parallel to each other and flush from head to tail. <\/p>\n

The wrinkle strip is large in the middle and pointed at both ends. There is a yarn tail at the junction of the wrinkle strip and the plane, which is shaped like a skirt wrinkle. <\/span><\/p>\n

The skirt has many wrinkles It occurs on fabrics containing chemical fibers and is not easy to find on original gray fabrics. It is only visible after printing and dyeing processing. <\/span><\/p>\n

\n

Main reason:<\/strong><\/p>\n

\u2460Chemical fiber itself Differences in performance or inconsistent high-temperature twisting temperatures in textile factories result in different shrinkage rates of weft yarns;<\/span><\/p>\n

\u2461There is a difference in the number or twist of the weft yarn used.<\/span><\/p>\n

\n

Solution: Re-cast the original greige clothProduce. <\/span><\/strong><\/span><\/p>\n<\/p>\n

\n
\n
\n
\n2<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nSeam head wrinkle<\/span><\/section>\n<\/section>\n<\/section>\n

Wrinkle strips and The seams are connected, one or more, with different lengths. Some are at one end of the seam, and some are at both ends of the seam. <\/span><\/p>\n

\n

The main reason is that<\/strong>the stitching of the ground cloth is poor. The seam head is not straight, firm, the edges are neat, and the stitching is even. <\/span><\/p>\n

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Solution: Cut off the seams and do a piece of cloth processing. <\/span><\/strong><\/span><\/p>\n

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\n
\n
\n
\n3<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nPrinting and dyeing processing wrinkles<\/span><\/section>\n<\/section>\n<\/section>\n

<\/span><\/p>\n

Generally in cloth There are not many strips on the surface, usually straight or diagonal strips, varying in length, width and width. The wrinkles produced before printing and dyeing or during the printing and dyeing process have a large color difference from the normal cloth surface; the wrinkles produced during the flat washing process after printing and dyeing have a smaller color difference. <\/span><\/p>\n

\n

Main reason:<\/strong><\/span><\/p>\n

\u2460 First half of printing and dyeing The product has original wrinkles;<\/span><\/p>\n

\u2461 During the printing and dyeing process, the mechanical tension and roller pressure are not properly adjusted; the parallelism of the guide roller and drying cylinder Poor control;<\/span><\/p>\n

\u2462 Prepare for cleaning Not done well. <\/span><\/p>\n

\n

Solution: Re-production. <\/strong><\/span><\/span><\/p>\n

\n

\n
\n
\n
\n4<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nmercerized wrinkle<\/ span><\/section>\n<\/section>\n<\/section>\n

After printing and dyeing, there will be thin dead wrinkles that are deep in the middle and shallow on both sides, straight or oblique.<\/span><\/p>\n

\n

Main reasons:<\/strong><\/span><\/p>\n

\u2460 Mercerizing machine The cloth guide rollers of the alkali removal steamer and flat washing tank are uneven or stained with yarn ends and alkali scale;<\/span><\/p>\n

\u2461 Mercerizing machine Improper tension adjustment;<\/span><\/p>\n

\u2462 Opening the direct steam pipe of the alkali removal steamer will greatly impact the fabric and cause wrinkles.<\/span><\/p>\n

\n

Solution: supplementary production.<\/strong><\/span><\/span><\/p>\n

<\/span><\/p>\n

\n
\n
\n
\n5<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nWind seal<\/ span><\/section>\n<\/section>\n<\/section>\n

The exposed part of the printed and dyed fabric is different from the normal color of the cloth surface. Generally, irregular light-colored stalls or color bars appear at the folds of the cloth or on both sides of the cloth.<\/span> <\/p>\n

\n

Main reasons:<\/strong><\/span><\/p>\n

Some printing and dyeing semi-finished products and in-process fabrics used for reactive dyes and disperse dyes contain alkali, or are affected by reducing gases in the air, which affects the fixation of the fabric and the dye, and the exposed parts produce light-colored patches. Reactive Dyes are prone to wind marks <\/span><\/p>\n

\n

Solution: supplementary production.<\/strong><\/span><\/span><\/p>\n<\/p>\n

\n
\n
\n
\n6<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nColor difference in edge, Color difference between left, center and right<\/span><\/section>\n<\/section>\n<\/section>\n

The color of printed and dyed fabrics in the middle or left, middle, or right edges remains the same. <\/p>\n

\n

generated main Reason: <\/strong><\/p>\n

\u2460Dye solution The roller or printing pressure is inconsistent at both ends;<\/span><\/p>\n

\u2461 When pre-baking or hot melt baking, the middle and both sides of the cloth The temperature and air volume are inconsistent, resulting in inconsistent dryness and wetness on the left and right sides or left, middle and right sides of the cloth;<\/span><\/p>\n

\u2462Color matching The dye migration properties are inconsistent under the same processing conditions, resulting in changes in color depth or shading. <\/span><\/p>\n

\n

Solution: Color correction<\/strong><\/span><\/span><\/p>\n<\/p>\n

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\n
\n
\n7<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nDark and light edges (edges Medium color difference)<\/span><\/section>\n<\/section>\n<\/section>\n

<\/span><\/ p><\/p>\n

Border color The color of the fabric is darker or lighter than normal. <\/span><\/p>\n

\n

Main reasons:<\/strong><\/span><\/p>\n

\u2460 Curl dyeing When the cloth is rolled, the edges are uneven;<\/span><\/p>\n

\u2461 The curling of the fabric during dyeing causes a shallow edge;<\/span><\/p>\n

\u2462Border organization Thickness and high liquid content result in deep edges. <\/span><\/p>\n

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Solution: Color correction and cropping to avoid color difference.<\/strong><\/span><\/p>\n<\/p>\n

\n
\n
\n
\n8<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nBar flower<\/ span><\/section>\n<\/section>\n<\/section>\n

Along the canvas The meridional direction shows strip-shaped or rain-shaped defects that are full-width, irregular in shape, and of different shades. Stripes are divided into gray cloth stripes and dyed stripes. The position of the head and tail of the billet remains unchanged, but the seam ends are the same, and the colors on both sides are similar. The dyed stripes pass through the seam, and the two sides have different shades. <\/span><\/p>\n

\n

Main reasons: <\/strong><\/p>\n

\u2460Dye blank Dyeing stripes are caused by poor uniformity of fiber raw materials and fabric structures;<\/span><\/p>\n

\u2461Selected There are gaps in the hair flame causing burnt streaks;<\/span><\/p>\n

\u2462 When mercerizing the fabric, the alkali rolling and alkali removal are uneven, and the cloth surface absorbs color unevenly, causing dyeing streaks;<\/span><\/p>\n

\u2463 Air outlet Uneven wind force causes regular stripes<\/span><\/p>\n

\u2464 Post-drying is rapid and uneven, and dye migration causes streaks<\/span><\/p>\n

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Solution: Fix the color. <\/strong><\/span><\/span><\/p>\n

\n

\n
\n
\n
\n9<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nColor file<\/span><\/section>\n<\/section>\n<\/section>\n

On dyed fabrics Along the weft direction, dark and light color blocks of varying width or neatness appear. <\/span><\/p>\n

\n

Main reasons:<\/strong><\/span><\/p>\n

\u2460Weaving Poor operation during startup or poor beat-up device of the loom causes the weft density to be sparse or dense, and the color after dyeing is different from the color of the normal cloth;<\/span><\/p>\n

\u2461Dyeing processing Parking produces a color shift;<\/span><\/p>\n

\u2462 Curl dyeing And the dyeing residue rate of the rolled roll is too large, forming a more regular dark grade;<\/span><\/p>\n

\u2463If the semi-finished product is left for too long, the folding area will be contaminated and form a color gap;<\/span><\/p>\n

\u2464After mercerizing The fabric is not washed and dried in time, and the folds are air-dried, resulting in color gaps after dyeing. <\/span><\/p>\n

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Solution: Fix the color.<\/strong><\/span><\/span><\/p>\n<\/p>\n

\n
\n
\n
\n10<\/span><\/section>\n
\n<\/section>\n<\/section>\n
\nColor point<\/ span><\/section>\n<\/section>\n<\/section>\n

\n

Small, dark spots appear regularly or irregularly on the printed and dyed cloth. The defects are either localized or scattered. . Generally occurs on light-colored fabrics. <\/span><\/p>\n

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Main reason:<\/strong><\/span><\/p>\n

\u2460 Make dye Poor dissolution when mixing with color paste;<\/span><\/p>\n

\u2461Material and If the color paste is left for too long, agglomeration will occur;<\/span><\/p>\n

\u2462The equipment is not clean properly. <\/span><\/p>\n

\n<\/p>\n

Solution: Color correction.<\/strong><\/span><\/p>\n

<\/div>\n

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1. Causes and solutions to problems that may occur during the production process of yarn-dyed fabrics 1 Weaving defects There are Weaving defects in the warp or weft direction appe…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[46],"class_list":["post-9240","post","type-post","status-publish","format-standard","hentry","category-textile-fabric-news","tag-db"],"_links":{"self":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/9240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9240"}],"version-history":[{"count":0,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=\/wp\/v2\/posts\/9240\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.textile-fabric.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}