Water jet loom longitudinal stripe fabric main formation methods are as follows:
1. Make the warp yarn density change to form sparse and dense longitudinal stripes;
2. The use of different raw materials arranged at certain width intervals to form longitudinal stripes;
3. The use of different fabric organizations arranged in parallel to form longitudinal stripes;
4. The combination of warp and weft of different thicknesses is used to form concave and convex undulating longitudinal stripes.
5. These longitudinal stripes fabric specifications design, respectively, have their different points of attention.
(1) density changes in the formation of longitudinal stripes of the fabric, the warp is generally a group of warp, the appearance of its longitudinal stripes is mainly in the design of the number of reed wearers to start, there are two methods, one for the striped interval of the number of reed wearers are not equal, the number of reed wearers of the interval, the density of the fabric is large, the fabric is thick, the number of reeds wearing the interval, the density of the warp is small, the fabric is thin, the fabric is uneven in the appearance of the longitudinal stripe thickness. Another empty reed method, that is, in a longitudinal stripes within the fabric density is consistent, the edge of the stripes empty 1 ~ 2 reeds, the formation of thin seams on the surface of the fabric, by the thin thin seams of the fabric to form longitudinal stripes. The former fabric in the specification design, mainly to control the density of the fabric, can not make the large density area of the fabric is too hard, also can not make the small density of the fabric error. The latter fabric should pay attention to not let the empty reed teeth on both sides of the warp to produce slip, therefore, the empty number of teeth can not be more, in most cases empty a tooth can be.
(2) the use of different raw materials arranged in intervals to form longitudinal striped fabrics, the warp has two groups or more than two groups, to two groups of warps, for example, can be used in the A and B warp threads of different densities, different luster, different colors, different dyeing properties, different shrinkage properties, twisted and untwisted, so as to form a thick and thin, luster, color, shrinkage properties, etc., different longitudinal stripes, such as the design of the fabric, the key is to be based on the fabric's ultimate The key to the design of this kind of fabric is to choose the correct raw materials of A warp and B warp according to the final appearance of the fabric.
(3) The use of different fabric organizations to make the fabric with longitudinal stripes appearance, this is a common design method, this fabric is generally used by a group of warps, commonly used organizations are plain and warp five school satin spacing, positive and negative five satin spacing, positive and negative four broken twill spacing, etc., the formation of longitudinal stripes, there are mountain twill, the formation of longitudinal stripes broken twill, there are plain and small jacquard organization of longitudinal stripes spacing, changes are relatively rich. The way of change is relatively rich. This fabric in the specification design, the key is to pay attention to the different organizations of the warp silk weaving shrinkage rate can not be too big a difference, especially small jacquard organization and plain organization composed of longitudinal stripes fabric, the plain organization of the warp silk weaving shrinkage rate and small jacquard organization of the least undulation of the warp silk weaving shrinkage rate of the difference in the fabric weaving shrinkage rate difference in the maximum value, the general should be the value of this value should be controlled in the 2.5% below, the control of the maximum weaving shrinkage rate difference value The maximum value of the weaving shrinkage difference is to facilitate weaving production, otherwise it can not be normal production, low loom efficiency, poor quality. In addition to the use of two or more different organizations arranged at intervals to form longitudinal stripes, you can also use the weft heavy flat organization, longitudinal convex stripes organization, etc., so that the fabric has a longitudinal stripes appearance effect.
(4) choose different thickness of the combination of warp and weft, so that the formation of longitudinal stripes with concave-convex undulation of the fabric, in the design of attention to the weft only need to use the same kind of thick and thin raw materials, while the warp should be used in different thicknesses of raw materials, the width of the stripes according to the requirements of the spatial arrangement of the thick warp and weft intertwined with a star raised, and thin warp and weft intertwined with the concave-convex undulating longitudinal stripe formation.