A high-low terry warp knitted structure cleaning cloth and its preparation process

Abstract

The present invention discloses a cleaning cloth with a high-low terry warp knitted structure and a preparation process, and belongs to the field of textile technology. The warp knitted fabric in the present invention has excellent longitudinal dimensional stability due to the longitudinal coil structure, and the transverse stability is enhanced by combining the chain knitting and weft insertion tissue. The warp knitted cleaning cloth fabric is produced at high speed by a warp knitting machine, which has the advantages of stable size, not easy to deform, terry not easy to snag, high production efficiency, and reduced cost. According to tests, the horizontal and vertical washing dimensional change rate of the high-low terry warp knitted structure cleaning cloth fabric designed by the present invention is ≤1%, the height difference of the high and low terry is 5-7mm, the three-dimensional effect is good, the bending length is 12.1mm, the water absorption rate is 358%, the wicking height is 13.6cm within 30 minutes, the initial color difference is 1 level, and the color difference after wiping 30 times is 3-4 levels, and it has easy decontamination ability.

Description

Technical Field

[0001] The invention relates to a cleaning cloth with a high-low terry warp knitting structure and a preparation process thereof, belonging to the technical field of textiles. Background Art

[0002] Cleaning cloths are textile fibers with a looped or cut terry pile. They are essential daily necessities used for bathing, wiping, and cleaning. There are a wide variety of cleaning cloths on the market, categorized by purpose: hand towels, face towels, floor towels, bath towels, pillowcases, quilts, terry cloths, mops, and dishcloths. Currently, the loops on conventional cleaning cloths are smooth and uniform, creating a flat appearance. This creates a uniform feel when in contact with skin, resulting in a poor three-dimensional effect. Furthermore, due to the low coefficient of friction, they tend to slip when hung on a towel rack. In addition, when the terry loops of the cleaning cloth are high (≥5mm), the cleaning cloth is relatively plump and soft, but precisely because of its plump and soft characteristics, the wiping effect of the cleaning cloth is relatively poor; when the terry loops of the cleaning cloth are low (≤4mm), the wiping effect of the cleaning cloth is relatively good, but the cleaning cloth is relatively thin, and when there are small deep grooves on the surface of the wiped object, considering that the terry loops of this type of cleaning cloth are relatively low, it cannot touch the bottom of the deep grooves during the entire wiping process, and therefore cannot effectively clean the small deep grooves on the surface of the wiped object. High and low terry loops can solve the above problems, but the cleaning cloth is mainly woven cloth, which is made of warp yarns of two systems (ground warp and wool warp) interwoven with weft yarns of one system. The ground warp and weft yarns form the base fabric, and the wool warp and weft yarns form terry loops. This production method can produce cleaning cloths of various sizes and structures, and the structural stability of the cleaning cloth is relatively high. However, in achieving the three-dimensional effect of high and low terry loops, there are problems of low production efficiency and high warp and weft density affecting the feel.

[0003] Therefore, designing a cleaning cloth that is dimensionally stable, has a good three-dimensional sense, is soft to the touch, has high production volume, is low in cost, and also has excellent wiping ability has become a problem that needs to be solved in this field. Summary of the Invention

[0004] Technical issues

[0005] (1) Conventional cleaning cloths have smooth loops and uniform height, giving them a flat visual effect. They feel consistent when in contact with human skin, resulting in poor three-dimensional effect. Furthermore, they tend to slip off towel racks due to their low coefficient of friction. Compared to cleaning cloths with uniform loop height, the high-low loop cleaning cloth of the present invention has a strong three-dimensional effect, is thick and soft, has long loops that are soft and delicate, and short loops that are fluffy and absorbent, giving it a good touch on the skin. Furthermore, the coefficient of friction is increased, making it less likely to slip off a towel rack.

[0006] (2) When the terry loops of ordinary cleaning cloths are high (≥5mm), the cleaning cloths are relatively plump and soft, but precisely because of their plump and soft characteristics, the wiping effect of these cleaning cloths is relatively poor; when the terry loops of the cleaning cloths are low (≤4mm), the wiping effect of these cleaning cloths is relatively good, but the cleaning cloths are relatively thin, and when there are small-sized deep grooves on the surface of the wiped object, considering that the terry loops of these cleaning cloths are relatively low, they cannot touch the bottom of the deep grooves during the entire wiping process, and therefore cannot effectively clean the small-sized deep grooves on the surface of the wiped object. The present invention adopts high and low terry loops, combining the softness and delicacy of high terry loops with the strong wiping ability of short terry loops, and because of the presence of high terry loops, the defect that short terry loops cannot touch the bottom of deep grooves is compensated. In addition, high terry can not only use comfortable and soft ordinary yarns (such as nylon, polyester, polypropylene, acrylic, chloroprene, etc.), but also use rigid yarns with large bending stiffness and relatively stiffness (such as polyester monofilament) to form high terry. Combined with low terry formed by flexible yarns (such as artificial cotton, artificial wool, linen, high shrinkage polyester and low elastic polyester or wool-polyester blended yarns), it can achieve an effect similar to that of steel wool, which can easily remove stubborn stains and kill two birds with one stone.

[0007] (3) Conventional cleaning cloths are mainly woven cloths, which are made of two systems (ground warp and wool warp) of warp yarns interwoven with one system of weft yarns. The ground warp and weft yarns form the base fabric, and the wool warp and weft yarns form the terry loops. This production method can produce cleaning cloths of various sizes and structures, and the structural stability of the cleaning cloth is relatively high. However, in achieving the three-dimensional effect of high and low terry loops, there are problems such as low production efficiency and high warp and weft density affecting the hand feel. The present invention uses a warp knitting machine to produce high and low terry loop cleaning cloths, which are not only soft, plump, and have good hygroscopicity, but also can change the size of the terry loops by changing the lateral displacement of the comb and the fluffiness of the yarn. It has the advantages of stable size, not easy to deform, not easy to snag the terry loops, and high production efficiency.

[0008] Technical Solution

[0009] In order to improve the shortcomings of existing cleaning cloths, a high-low terry warp knitted structure cleaning cloth and a preparation process are invented. The production method is simple and is manufactured using a warp knitting machine. Combined with high and low terry, the cleaning cloth not only has the characteristics of being soft, plump, hygroscopic, not easy to slip, and having a good wiping effect, but also the size of the terry can be changed by changing the lateral displacement of the comb and the fluffiness of the yarn. It also has the advantages of stable size, not easy to deform, the terry is not easy to hook, high production efficiency, and cost savings.

[0010] According to the technical solution provided by the present invention, the high-low terry warp knitted cleaning cloth and its preparation process are knitted on a tricot machine equipped with three combing bars: GB1 (front comb), GB2 (middle comb), and GB3 (back comb). The front comb knits the terry loops, while the back and middle combs knit the base fabric. The weave is a plain warp weave with an odd-gauge shift. This allows the stitches on the even-numbered empty needles in the second course to be removed to form terry loops, while the stitches on the odd-numbered needles in the first course are woven into the base fabric.

[0011] As a warp-knitted terry fabric base fabric, chain weft and weft insertion are used. In order to form terry loops, the base fabric must leave empty needles, so the yarn threading method of 1 through 1 empty is adopted. The combing bar GB2 adopts chain weft and threading polyester yarn (polypropylene, nylon, acrylic, chloroprene, etc.); the combing bar GB3 adopts weft insertion and threading polyester yarn (polypropylene, nylon, acrylic, chloroprene, etc.); the combing bar GB1 moves horizontally in the warp plain fabric with an odd needle gauge. There are two yarn threading methods:

[0012] 1) Use two different shrinkage yarns: polyester yarn (cotton, viscose, modal, polyester-cotton blended yarn, polyester-wool blended yarn, etc.) and polyester bulked yarn (acrylic bulked yarn, acrylic-cotton blended bulked yarn, acrylic-wool blended bulked yarn, polyester-cotton blended bulked yarn, polyester-wool blended bulked yarn, polyester-wool Tencel blended bulked yarn, and environmentally friendly recycled polyester bulked yarn). Because GB1 uses two different shrinkage yarns, when the weave structure is the same, the terry made from the high-shrinkage yarn will curl and shrink longitudinally after wet heat treatment, forming a low-terry loop; the terry made from the standard yarn will hardly shrink, forming a high-terry loop. Because all the yarns used are flexible, the cleaning cloth has a soft and plump feel.

[0013] 2) When wearing polyester monofilament (nylon monofilament, acrylic monofilament, chloroprene monofilament, and other monofilament fibers) and rayon (artificial wool, linen, high-shrinkage polyester with low-elasticity polyester, or wool-polyester blends, etc.), rigid yarns (polyester monofilament, nylon monofilament, acrylic monofilament, chloroprene monofilament, and other monofilament fibers) do not shrink and form high terry loops, while flexible yarns (rayon, artificial wool, linen, high-shrinkage polyester with low-elasticity polyester, or wool-polyester blends, etc.) shrink greatly and form low terry loops. Because the yarns used are rigid, similar to steel wool, they feel hard and have strong decontamination capabilities.

[0014] A first object of the present invention is to provide a method for preparing a cleaning cloth with a high-low terry warp knitted structure, wherein the cleaning cloth is knitted on a warp knitting machine; the warp knitting machine is equipped with three guide bars GB1, GB2, and GB3 and a weft insertion device; GB1 knits the terry, and GB2 and GB3 knit the base fabric; GB1 uses two yarns with different shrinkage, and GB2 and GB3 use ordinary chemical fiber filaments; the two yarns on the guide bar GB1 are both one-through-one-out, and a warp plain weave with a lateral shift odd stitch length is adopted; the guide bar GB2 uses chain knitting, and the guide bar GB3 uses weft insertion.

[0015] In one embodiment of the present invention, the two yarns with different shrinkage are ordinary yarn and bulked yarn;

[0016] or monofilament fibers and blended yarns.

[0017] In one embodiment of the present invention, the common yarn includes any one of cotton yarn, viscose yarn, modal yarn, polyester yarn, polyester-cotton blended yarn, and polyester-wool blended yarn.

[0018] Furthermore, the specifications of common yarns are 200D-300D / 96f-144f.

[0019] In one embodiment of the present invention, the bulked yarn refers to a yarn made by mixing high shrinkage fibers and regular fibers in a certain proportion. The yarn is subjected to wet heat treatment, and the high shrinkage fibers shrink to form the core of the yarn, while the regular fibers bend to form the sheath of the yarn, which is the so-called "skin-core" structure.

[0020] In one embodiment of the present invention, the bulked yarn includes polyester bulked yarn, acrylic bulked yarn, acrylic-cotton blended bulked yarn, acrylic-wool blended bulked yarn, polyester-cotton blended bulked yarn, polyester-wool blended bulked yarn, polyester-wool-Tencel blended bulked yarn, environmentally friendly regenerated polyester bulked yarn or artificial wool, linen, high shrinkage polyester and low-elastic polyester or wool-polyester blended yarn.

[0021] In one embodiment of the present invention, the boiling water shrinkage of the bulked yarn is 35% or more.

[0022] In one embodiment of the present invention, the boiling water shrinkage of the bulked yarn is 50% to 65%.

[0023] Furthermore, the specification of the bulked yarn is 200D to 300D.

[0024] In one embodiment of the present invention, the monofilament fiber includes any one of polyester monofilament, nylon monofilament, acrylic monofilament or chloroprene monofilament.

[0025] Furthermore, the specification of the monofilament fiber is 200D to 300D.

[0026] In one embodiment of the present invention, the blended yarn includes rayon, artificial wool, linen, blended yarn of high shrinkage polyester and low elastic polyester or wool-polyester yarn.

[0027] Furthermore, the specification of the blended yarn is 16s-32s or 200D-300D / 96f-144f.

[0028] In one embodiment of the present invention, the common chemical fiber filaments include polypropylene yarns, nylon yarns, acrylic yarns or chloroprene yarns.

[0029] Furthermore, the specifications of ordinary chemical fiber filaments are 75~150D36~96f.

[0030] In one embodiment of the present invention, the amount of common yarn or monofilament fiber used accounts for 25-30% of the total mass of the cleaning cloth.

[0031] In one embodiment of the present invention, the amount of bulked yarn or blended yarn is 25-30% of the total mass of the cleaning cloth.

[0032] In one embodiment of the present invention, the amount of common chemical fiber filaments used accounts for 45-55% of the total mass of the cleaning cloth.

[0033] In one embodiment of the present invention, the warp knitting machine is a tricot warp knitting towel machine KS4FBZ.

[0034] In one embodiment of the present invention, the selection and threading method of GB1 during warping and weaving is:

[0035] GB1 comb: 9-10 / 1-0 / / , 1 open and 1 threaded; or 3-4 / 1-0 / / , 5-6 / 1-0 / / , 7-8 / 1-0 / / and other odd-gauge warp plain weaves.

[0036] In one embodiment of the present invention, the single comb structure selection and yarn threading method during warping and weaving of GB2 comb and GB3 comb are as follows:

[0037] GB2 comb: 0-1 / 1-0 / / , 1 empty and 1 worn;

[0038] GB3 comb: 5-5 / 0-0 / / , 1 empty and 1 worn.

[0039] In one embodiment of the present invention, the method comprises the following steps:

[0040] 1) Material selection: select ordinary yarn and bulked yarn or monofilament fiber and blended yarn as the yarn used for GB1, and select ordinary chemical fiber filament as the yarn used for GB2 and GB3;

[0041] 2) Warping: Warping is carried out on a warping machine according to the requirements of width, crosswise density and drawing-in rate. The warping temperature is 24-26°C and the relative humidity is 60-70%.

[0042] 3) Weaving: Weaving is done using a tricot warp knitting machine for cleaning cloths;

[0043] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting;

[0044] 5) Testing and packaging.

[0045] The second object of the present invention is to provide a cleaning cloth with a high-low terry warp knitted structure prepared according to the above method.

[0046] In one embodiment of the present invention, the weight of the high-low terry warp knitted cleaning cloth is 400-500 g / m 2 .

[0047] The third object of the present invention is to use the provided high-low terry warp knitted structure cleaning cloth in the fields of textiles and daily necessities preparation.

[0048] A fourth object of the present invention is to provide a high-low terry warp knitted structure fabric, the fabric comprising a front side and a back side, the front side having a chain link and weft insertion structure, the back side having a terry structure, the front and back sides being connected by a GB1 coil; the front side adopts ordinary chemical fiber, the back side adopts ordinary yarn and bulked yarn, and because the two yarns shrink differently, high-low terry is formed after wet heat treatment.

[0049] The fifth object of the present invention is to provide an application of a high-low terry warp knitted structure fabric in the field of textiles and daily necessities preparation.

[0050] Beneficial effects

[0051] (1) The present invention uses a warp knitted cleaning cloth. The warp knitted fabric has excellent longitudinal dimensional stability due to its longitudinal coil structure. Combined with the chain and weft weft structure, the lateral stability is enhanced. The warp knitted cleaning cloth fabric is produced at high speed by a warp knitting machine, and has the advantages of dimensional stability, not easy to deform, the loops are not easy to snag, high production efficiency, and reduced costs. According to tests, the horizontal and vertical dimensional change rate of the high and low loop warp knitted structure cleaning cloth fabric designed by the present invention is ≤1%, the height difference between the high and low loops is 5 to 7 mm, the three-dimensional effect is good, the bending length is 12.1 mm, the water absorption rate is 358%, the wicking height is 13.6 cm within 30 minutes, the initial color difference is 1 level, and the color difference after wiping 30 times is 3 to 4 levels, and it has easy decontamination ability.

[0052] (2) The present invention has two levels of loops, high and low. The high loops use yarns with small shrinkage, and the low loops use bulked yarns with large shrinkage. The high and low loop structures form a cleaning cloth with a strong three-dimensional sense, richness and softness. The long loops are soft and delicate (when rigid yarns are used, the hand feels hard but the decontamination ability is strong), and the short loops are fluffy and absorbent, with a good skin touch, and increase the friction coefficient, making it less likely to slip off the towel rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 Schematic diagram of the main loop forming mechanism of the present invention, schematic diagram of the main loop forming mechanism: 1 - knitting needle; 2 - sinker bed; 3 - yarn guide bar.

[0054] Figure 2This is a diagram of the yarn padding movement of the combing bars GB1 to GB3 of the high-low terry warp knitted structure cleaning cloth fabric.

[0055] Figure 3 Actual pictures of the high-low terry warp knitted cleaning cloth fabric; (a) back; (b) front; (c) longitudinal side; (d) transverse side. DETAILED DESCRIPTION

[0056] To make the present invention more clearly understood, preferred embodiments are described in detail below with reference to the accompanying drawings. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, after reading the present disclosure, those skilled in the art may make various changes or modifications to the present invention, and such equivalents are also within the scope of the claims appended hereto.

[0057] Detection method

[0058] 1. Dimensional stability test method:

[0059] Dimensional stability is reflected by the water washing shrinkage. The water washing dimensional change requirements are in accordance with FZ / T64025-2011. The longitudinal water washing dimensional change rate is -2.0%-0.5%, and the transverse water washing dimensional change rate is -1.5%-0.5%.

[0060] 2. Softness test method:

[0061] The softness of cleaning cloths is measured based on the bending length according to GB / T 18318.1-2009, "Determination of Flexural Properties of Textiles - Part 1: Inclined Plane Method." A smaller value indicates a softer fabric. References indicate that the bending length of a typical looped cleaning cloth is 15.4 mm.

[0062] 3. Wiping and decontamination performance test method:

[0063] The wiping performance is tested by referring to GB / T 21655.1-2008 "Evaluation of moisture absorption and quick-drying properties of textiles Part 1: Single combination test method" to test water absorption rate and wicking height. According to literature reference, the water absorption rate of ordinary loop cleaning cloth is 213%, and the wicking height after 30 minutes is 11.2cm.

[0064] The stain removal performance is tested by the wiping method in accordance with FZ / T 01118-2012 "Testing and Evaluation of Anti-Stain Performance of Textiles for Stain Removal", which stipulates that if the initial color difference of a white textile contaminated by a pollutant is 1 and the color difference is 3 to 4 after wiping 30 times, it is considered to be stain removable.

[0065] Source of raw materials

[0066] The yarns used in the examples and comparative examples are all purchased from the market. The bulked yarns include polyester bulked yarn, acrylic bulked yarn, acrylic-cotton blended bulked yarn, acrylic-wool blended bulked yarn, polyester-cotton blended bulked yarn, polyester-wool blended bulked yarn, polyester-wool-Tencel blended bulked yarn, environmentally friendly recycled polyester bulked yarn and other bulked yarns. Their shrinkage rates are characterized by boiling water shrinkage rates. The boiling water shrinkage rates of the bulked yarns used in the examples are between 50% and 65%.

[0067] Example 1

[0068] A high-low terry warp knitted cleaning cloth and its preparation process are composed of the following mass percentages: 8.9% of 75D36f semi-gloss polyester DTY, 13.2% of 150D96f semi-gloss polyester yarn DTY, 26.1% of 280D144f semi-gloss polyester yarn DTY, and 51.8% of 280D144f bulked polyester yarn.

[0069] The preparation process of the fabric is as follows: the specific process of each process is as follows: including the selection of each comb structure, preparation process, warping, weaving, and finishing.

[0070] 1) Material selection: 75D36f semi-bright polyester yarn DTY, 150D96f semi-bright polyester yarn DTY, 280D144f semi-bright polyester yarn DTY, and 280D144f polyester bulked yarn are selected as raw materials;

[0071] 2) Warping: Based on a width of 170 cm, a crosswise density of 10.0 wpc, and a drawing-in rate of 1 through 1 open for GB1, GB2, and GB3, the number of warping ends is calculated to be 8×213 for GB1, GB2, and GB3.

[0072] The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. Higher and stable temperature and humidity help to stabilize the twist of polyester and soften the surface, avoid entanglement of yarns, and are beneficial to the production of warp knitted products.

[0073] 3) Weaving: Tricot warp knitting machine is used for weaving;

[0074] Model: Tricot warp knitting machine KS4FBZ

[0075] Machine gauge: 24 needles

[0076] Width: 136 inches

[0077] Warp knitting structure:

[0078] GB1 comb: 9-10 / 1-0 / / ;

[0079] GB2 comb: 0-1 / 1-0 / / ;

[0080] GB3 comb: 5-5 / 0-0 / / ;

[0081] Raw materials and threading method:

[0082] GB1 comb: 280D144f semi-bright polyester yarn DTY, 280D144f polyester bulked yarn, 1 through and 1 open;

[0083] GB2 comb: 150D96f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0084] GB3 comb: 75D36f semi-gloss polyester yarn DTY, 1 open and 1 threaded;

[0085] Input the weave yarn number, warp let-off, and draft density into the computer display of the control cabinet, save the data, load the machine file, and start the machine. After weaving is completed, the blank fabric is weighed, bagged, and stored.

[0086] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting.

[0087] 5) Testing and packaging.

[0088] After the above process, the cleaning cloth fabric with a high-low terry warp knitted structure of this embodiment can be obtained, where the height of the low terry is 4 mm and the height of the high terry is 10 mm.

[0089] The specific parameters of the process of this embodiment are shown in Table 1.

[0090] Table 1

[0091]

[0092] Example 2

[0093] A high-low terry warp knitted cleaning cloth and its preparation process are composed of the following mass percentages: 9.7% of 75D36f semi-gloss polyester DTY, 15.2% of 150D96f semi-gloss polyester yarn DTY, 25.1% of 280D144f semi-gloss polyester yarn DTY, and 50.0% of 280D144f bulked polyester yarn.

[0094] The preparation process of the fabric is as follows: the specific process of each process is as follows: including the selection of each comb structure, preparation process, warping, weaving, and finishing.

[0095] 1) Material selection: 75D36f semi-bright polyester yarn DTY, 150D96f semi-bright polyester yarn DTY, 280D144f semi-bright polyester yarn DTY, and 280D144f polyester bulked yarn are selected as raw materials;

[0096] 2) Warping: Based on a width of 170 cm, a crosswise density of 10.0 wpc, and a drawing-in rate of 1 through 1 open for GB1, GB2, and GB3, the number of warping ends is calculated to be 8×213 for GB1, GB2, and GB3.

[0097] The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. Higher and stable temperature and humidity help to stabilize the twist of polyester and soften the surface, avoid entanglement of yarns, and are beneficial to the production of warp knitted products.

[0098] 3) Weaving: Tricot warp knitting machine is used for weaving;

[0099] Model: Tricot warp knitting machine KS4FBZ

[0100] Machine gauge: 24 needles

[0101] Width: 136 inches

[0102] Warp knitting structure:

[0103] GB1 comb: 7-8 / 2-1 / / ;

[0104] GB2 comb: 0-1 / 1-0 / / ;

[0105] GB3 comb: 5-5 / 0-0 / / ;

[0106] Raw materials and threading method:

[0107] GB1 comb: 280D144f semi-bright polyester yarn DTY, 280D144f polyester bulked yarn, 1 through and 1 open;

[0108] GB2 comb: 150D96f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0109] GB3 comb: 75D36f semi-gloss polyester yarn DTY, 1 open and 1 threaded;

[0110] Input the weave yarn number, warp let-off, and draft density into the computer display of the control cabinet, save the data, load the machine file, and start the machine. After weaving is completed, the blank fabric is weighed, bagged, and stored.

[0111] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting.

[0112] 5) Testing and packaging.

[0113] After the above process, the cleaning cloth fabric with a high-low terry warp knitted structure of this embodiment can be obtained, where the height of the low terry is 3 mm and the height of the high terry is 8 mm.

[0114] The specific parameters of the process of this embodiment are shown in Table 2.

[0115] Table 2

[0116]

[0117]

[0118] Example 3

[0119] A high-low terry warp knitted cleaning cloth and its preparation process are composed of the following mass percentages: 9.7% of 75D36f semi-gloss polyester DTY, 15.2% of 150D96f semi-gloss polyester yarn DTY, 25.1% of 280D monofilament polyester, and 50.0% of 280D144f high-elastic polyester and low-elastic polyester blended yarn.

[0120] The preparation process of the fabric is as follows: the specific process of each process is as follows: including the selection of each comb structure, preparation process, warping, weaving, and finishing.

[0121] 1) Material selection: 75D36f semi-bright polyester yarn DTY, 150D96f semi-bright polyester yarn DTY, 280D monofilament polyester, 280D144f high-elastic polyester and low-elastic polyester blended yarn are selected as raw materials;

[0122] 2) Warping: Based on a width of 170 cm, a crosswise density of 10.0 wpc, and a drawing-in rate of 1 through 1 open for GB1, GB2, and GB3, the number of warping ends is calculated to be 8×213 for GB1, GB2, and GB3.

[0123] The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. Higher and stable temperature and humidity help to stabilize the twist of polyester and soften the surface, avoid entanglement of yarns, and are beneficial to the production of warp knitted products.

[0124] 3) Weaving: Tricot warp knitting machine is used for weaving;

[0125] Model: Tricot warp knitting machine KS4FBZ

[0126] Machine gauge: 24 needles

[0127] Width: 136 inches

[0128] Warp knitting structure:

[0129] GB1 comb: 9-10 / 1-0 / / ;

[0130] GB2 comb: 0-1 / 1-0 / / ;

[0131] GB3 comb: 5-5 / 0-0 / / ;

[0132] Raw materials and threading method:

[0133] GB1 comb: 280D monofilament polyester, 280D144f high-elastic polyester and low-elastic polyester blended yarn, 1 through and 1 open;

[0134] GB2 comb: 150D96f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0135] GB3 comb: 75D36f semi-gloss polyester yarn DTY, 1 open and 1 threaded;

[0136] Input the weave yarn number, warp let-off, and draft density into the computer display of the control cabinet, save the data, load the machine file, and start the machine. After weaving is completed, the blank fabric is weighed, bagged, and stored.

[0137] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting.

[0138] 5) Testing and packaging.

[0139] After the above process, the cleaning cloth fabric with a high-low terry warp knitted structure of this embodiment can be obtained, where the height of the low terry is 4 mm and the height of the high terry is 11 mm.

[0140] The specific parameters of the process of this embodiment are shown in Table 3.

[0141] Table 3

[0142]

[0143] Comparative Example 1

[0144] A high-low terry warp knitted cleaning cloth and its preparation process are composed of the following mass percentages: 9.7% of 75D36f semi-gloss polyester DTY, 15.2% of 150D96f semi-gloss polyester yarn DTY, and 75.1% of 280D144f polyester yarn.

[0145] The preparation process of the fabric is as follows: the specific process of each process is as follows: including the selection of each comb structure, preparation process, warping, weaving, and finishing.

[0146] 1) Material selection: 75D36f semi-bright polyester yarn DTY, 150D96f semi-bright polyester yarn DTY, and 280D144f semi-bright polyester yarn DTY are selected as raw materials;

[0147] 2) Warping: Based on a width of 170 cm, a crosswise density of 10.0 wpc, and a drawing-in rate of 1 through 1 open for GB1, GB2, and GB3, the number of warping ends is calculated to be 8×213 for GB1, GB2, and GB3.

[0148] The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. Higher and stable temperature and humidity help to stabilize the twist of polyester and soften the surface, avoid entanglement of yarns, and are beneficial to the production of warp knitted products.

[0149] 3) Weaving: Tricot warp knitting machine is used for weaving;

[0150] Model: Tricot warp knitting machine KS4FBZ

[0151] Machine gauge: 24 needles

[0152] Width: 136 inches

[0153] Warp knitting structure:

[0154] GB1 comb: 9-10 / 1-0 / / ;

[0155] GB2 comb: 0-1 / 1-0 / / ;

[0156] GB3 comb: 5-5 / 0-0 / / ;

[0157] Raw materials and threading method:

[0158] GB1 comb: 280D144f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0159] GB2 comb: 150D96f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0160] GB3 comb: 75D36f semi-gloss polyester yarn DTY, 1 open and 1 threaded;

[0161] Input the weave yarn number, warp let-off, and draft density into the computer display of the control cabinet, save the data, load the machine file, and start the machine. After weaving is completed, the blank fabric is weighed, bagged, and stored.

[0162] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting.

[0163] 5) Testing and packaging.

[0164] After the above process, the cleaning cloth fabric with a high-low terry warp knitted structure of this embodiment can be obtained, and the height of the terry is 10 mm.

[0165] The specific parameters of the process of this embodiment are shown in Table 4.

[0166] Table 4

[0167]

[0168]

[0169] Comparative Example 2

[0170] A high-low terry warp knitted cleaning cloth and its preparation process are composed of the following mass percentages: 9.6% of 75D36f semi-gloss polyester DTY, 15.2% of 150D96f semi-gloss polyester yarn DTY, 25.3% of 280D144f polyester yarn, and 49.9% of 280D144f polyester-nylon composite yarn (the shrinkage rate of the polyester component is 3%-5%, the shrinkage rate of the nylon component is more than 20%, and the shrinkage rate of the polyester-nylon composite yarn is more than 15%-18%).

[0171] The preparation process of the fabric is as follows: the specific process of each process is as follows: including the selection of each comb structure, preparation process, warping, weaving, and finishing.

[0172] 1) Material selection: 75D36f semi-bright polyester yarn DTY, 150D96f semi-bright polyester yarn DTY, 280D144f polyester yarn, 280D144f polyester-nylon composite yarn (shrinkage rate above 15%-18%) are selected as raw materials;

[0173] 2) Warping: Based on a width of 170 cm, a crosswise density of 10.0 wpc, and a drawing-in rate of 1 through 1 open for GB1, GB2, and GB3, the number of warping ends is calculated to be 8×213 for GB1, GB2, and GB3.

[0174] The temperature at the warping site is 25±1℃ and the relative humidity is 65±5%. Higher and stable temperature and humidity help to stabilize the twist of polyester and soften the surface, avoid entanglement of yarns, and are beneficial to the production of warp knitted products.

[0175] 3) Weaving: Tricot warp knitting machine is used for weaving;

[0176] Model: Tricot warp knitting machine KS4FBZ

[0177] Machine gauge: 24 needles

[0178] Width: 136 inches

[0179] Warp knitting structure:

[0180] GB1 comb: 9-10 / 1-0 / / ;

[0181] GB2 comb: 0-1 / 1-0 / / ;

[0182] GB3 comb: 5-5 / 0-0 / / ;

[0183] Raw materials and threading method:

[0184] GB1 comb: 280D144f polyester yarn, 280D144f polyester-nylon composite yarn (boiling water shrinkage is above 15%-18%), 1 through and 1 open;

[0185] GB2 comb: 150D96f semi-gloss polyester yarn DTY, 1 through and 1 open;

[0186] GB3 comb: 75D36f semi-gloss polyester yarn DTY, 1 open and 1 threaded;

[0187] Input the weave yarn number, warp let-off, and draft density into the computer display of the control cabinet, save the data, load the machine file, and start the machine. After weaving is completed, the blank fabric is weighed, bagged, and stored.

[0188] 4) Finishing: ① washing; ② bleaching; ③ whitening; ④ drying; ⑤ setting.

[0189] 5) Testing and packaging.

[0190] After the above process, the cleaning cloth fabric with a high-low terry warp knitted structure of this embodiment can be obtained, where the height of the high terry is 10 mm and the height of the low terry is 8 mm.

[0191] The specific parameters of the process of this embodiment are shown in Table 5.

[0192] Table 5

[0193]

[0194] Compared with Example 1, Example 2 does not change the raw materials of the comb bars, but only changes the yarn weave of GB1, thereby achieving the purpose of changing the pile height and grammage. Compared with Example 1, Example 3 changes the yarn weave of GB1, and the pile height and grammage are similar. Due to the use of rigid yarn, the cleaning cloth of Example 3 feels harder, similar to steel wool, and has strong cleaning ability. Compared with Example 1, the raw materials of GB1 in Comparative Example 1 are changed from two yarns with different shrinkage, semi-bright polyester yarn and polyester bulked yarn, to only semi-bright polyester yarn. Due to the lack of polyester bulked yarn with higher shrinkage, the fabric has only one terry height, and low terry cannot be formed, so a cleaning cloth fabric with high and low terry cannot be formed; the raw materials of GB1 in Comparative Example 2 are changed from semi-bright polyester yarn and polyester bulked yarn with high shrinkage (boiling water shrinkage rate is 35% and above) to semi-bright polyester yarn and polyester-nylon composite yarn with general shrinkage (shrinkage rate is 15%-18% or above). Since the shrinkage rate of the yarn used is relatively low, the high and low terry of the cleaning cloth is not obvious, and its effect is not as good as the cleaning cloth in Examples 1, 2 and 3.

[0195] Table 6

[0196]

[0197] As shown in Table 6, the dimensional change rates of the five cleaning cloths after washing are all less than 1%, indicating that they all have excellent dimensional stability. Among them, Comparative Example 2 has the best dimensional stability, which is because GB1 uses monofilament polyester to enhance stability; the dimensional change rates of Examples 1, 2 and Comparative Examples 1, 2 are similar, which is related to the fact that the fabrics do not use 280D monofilament polyester and thus do not enhance the stability of the fabric; Example 1 has the smallest bending length, so Example 1 feels the softest, because GB1 uses polyester bulked yarn and has high and low loops, with a loop height difference of 6mm, which enhances the softness of the cleaning cloth; the softness of Example 2 is second only to Example 1, which may be because the span distance of Example 2 GB1 is smaller than that of Example 1; the softness of Example 3 is the worst, and the use of monofilament polyester in GB1 is the main reason for its low softness; due to the similar use of yarns, the softness of Comparative Examples 1 and 2 is close; Example 1 has the best water absorption and wicking height, because high and low loops are formed by using yarns with different shrinkages, And the polyester bulked yarn is fluffy, which improves the hygroscopicity of Example 1; because the span of GB1 is slightly smaller than that of Example 1, the hygroscopicity of Example 2 is slightly lower than that of Example 1; the water absorption rate and wicking height of Example 3 are the worst, this is because GB1 uses monofilament polyester, and monofilament polyester is water-repellent; although high and low loops are formed in Comparative Example 2, because the yarn used is polyester-nylon composite yarn (shrinkage rate is more than 15%-18%), not high shrinkage yarn, the height difference of the high and low loops is small, so The water absorption rate and wicking height are close to those of comparative example 1; the shrinkage rates 1, 2, and 3 all have easy decontamination capabilities. Examples 1 and 2 improve their decontamination capabilities due to the use of high and low loops with different shrinkage yarns. In addition to being related to the high and low loops, Example 3 is also related to the use of monofilament polyester in GB1 to strengthen the hardness of Example 3, making it similar to a steel wool and easy to decontaminate; Comparative Examples 1 and 2 do not form high and low loops or the height difference of the bright loops is small, so their decontamination capabilities are weaker than those of Examples 1, 2, and 3.

[0198] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A method for preparing a high-low terry warp knitted cleaning cloth, characterized in that: The cleaning cloth is woven on a warp knitting machine; the warp knitting machine is equipped with three guide bars GB1, GB2, GB3 and a weft insertion device; GB1 weaves loops, and GB2 and GB3 weave base fabrics; GB1 uses two yarns with different shrinkage, which are ordinary yarn and bulked yarn, or monofilament fiber and blended yarn; GB2 and GB3 use ordinary chemical fiber filament; the amount of ordinary yarn or monofilament fiber accounts for 25-30% of the total mass of the cleaning cloth; the amount of bulked yarn or blended yarn accounts for 25-30% of the total mass of the cleaning cloth; the amount of ordinary chemical fiber filament accounts for 45-55% of the total mass of the cleaning cloth; The two yarns of the combing bar GB1 are both 1 through 1 empty, and a warp plain weave with an odd needle length is adopted. The combing bar GB2 adopts chain weaving, and the combing bar GB3 adopts weft insertion. GB1 warping and weaving selection and threading method are as follows: GB1 comb: 9-10 / 1-0 / / , 1 open and 1 threaded; or 3-4 / 1-0 / / , 5-6 / 1-0 / / , 7-8 / 1-0 / / odd-gauge warp plain weave; The single comb structure selection and yarn threading method during warping and weaving with GB2 and GB3 combs are as follows: GB2 comb: 0- 1 / 1- 0 / / , 1 empty and 1 worn; GB3 comb: 5-5 / 0-0 / / , 1 empty and 1 worn.

2. The method according to claim 1, wherein The common yarn includes any one of cotton yarn, viscose yarn, modal yarn, polyester yarn, polyester-cotton blended yarn, and polyester-wool blended yarn; the specification of the common yarn is 200D-300D / 96f-144f.

3. The method according to claim 1, wherein The bulked yarn includes polyester bulked yarn, acrylic bulked yarn, acrylic-cotton blended bulked yarn, acrylic-wool blended bulked yarn, polyester-cotton blended bulked yarn, polyester-wool blended bulked yarn, polyester-wool-Tencel blended bulked yarn, environmentally friendly recycled polyester bulked yarn or artificial wool, linen, high-shrinkage polyester and low-elastic polyester or wool-polyester blended yarn; the boiling water shrinkage of the bulked yarn is 50% to 65%; the specification of the bulked yarn is 200D to 300D.

4. The method according to claim 1, wherein The monofilament fiber includes any one of polyester monofilament, nylon monofilament, acrylic monofilament or chloroprene monofilament; the specification of the monofilament fiber is 200D to 300D.

5. The method according to claim 1, wherein Blended yarns include blended yarns of rayon, artificial wool, linen, high shrinkage polyester and low elastic polyester or wool-polyester yarn; the specifications of the blended yarns are 16s~32s or 200D~300D / 96f~144f.

6. The method according to claim 1, wherein The common chemical fiber filaments include polypropylene yarn, nylon yarn, acrylic yarn or chloroprene yarn; the specifications of the common chemical fiber filaments are 75~150D / 36~96f.

7. The method according to claim 1, characterized in that The method comprises the following steps: 1) Material selection: Select ordinary yarn and bulked yarn or monofilament fiber and blended yarn as the yarn used for GB1, and select ordinary chemical fiber filament as the yarn used for GB2 and GB3; 2) Warping: Warping is carried out on the warping machine according to the requirements of width, crosswise density and drawing-in rate. The warping temperature is 24-26℃ and the relative humidity is 60-70%. 3) Weaving: Weaving is done using a tricot warp knitting machine for cleaning cloths; 4) Finishing:

1. Washing; 2. Bleaching; 3. Whitening; 4. Drying; 5. Shaping; 5) Testing and packaging.

8. A high-low terry warp knitted cleaning cloth prepared by the method according to any one of claims 1 to 7.

9. Use of the high-low terry warp knitted structure cleaning cloth according to claim 8 in the fields of textiles and daily necessities preparation.

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