Polyester-viscose printed woven fabric as well as preparation method and application thereof

Abstract

The invention provides a polyester-viscose printed woven fabric and a preparation method and application thereof.The preparation method comprises the steps that semi-gloss polyester serves as warp yarn, viscose serves as weft yarn, weaving is conducted through a five-piece satin weave structure, and gray fabric is obtained; sequentially carrying out pretreatment, pre-drying, printing, baking, color fixing and steaming, washing and shaping treatment on the obtained gray fabric, wherein printing paste used for printing comprises a specific content of composite paste; through the matching of the yarns and the selection of the organization structure, and meanwhile, the printing paste is limited to contain the composite paste, so that the polyester-viscose printed and woven fabric prepared by the preparation method not only has soft gloss and soft hand feeling, but also has good air permeability and dyeing effect, is uniform in coloring, does not have the problem of white exposure, is relatively high in flatness, and has a good application prospect. After being washed, the fabric is not prone to wrinkling and hair sticking and good in non-ironing performance.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular relates to a polyester-viscose printed woven fabric and a preparation method and application thereof. Background Art

[0002] As people's living standards continue to improve, their requirements for clothing performance continue to increase. The glossiness, feel and style of the fabric used to make clothing are attracting more and more attention. Satin is a kind of fabric, also called satin or five-piece satin. The smooth and bright side is called the satin side of satin. The raw material of satin can be silk, blended, or pure fiber. It is mainly used for all kinds of women's clothing, pajamas or underwear. Satin fabric is widely popular and has good glossiness and drape.

[0003] Most of the existing satin satin home wear products are mainly made of polyester, which is very close-fitting, not breathable, has obvious static electricity, and is easy to get hairy. Although polyester blended products can improve the above defects, due to inconsistent ingredients, when making printed products, the dyeing rates of the two fibers are inconsistent, which leads to the problem of white and bottom exposure of the products, seriously affecting consumers' home wearing experience.

[0004] Therefore, developing a method for preparing a polyester-viscose printed woven fabric with high gloss, good air permeability, good dyeing effect and high iron-free performance is still a technical problem that needs to be urgently solved in this field. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a polyester-viscose printed woven fabric and a preparation method and application thereof. The polyester-viscose printed woven fabric prepared by the preparation method not only has a soft luster and a soft feel, but also has good air permeability and dyeing effect, a high dyeing rate and uniform coloring without white exposure problems, and is not easy to wrinkle or get hairy after washing, has good ironing-free performance, and can effectively enhance consumers' home wearing experience after being made into clothing.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a method for preparing a polyester-viscose printed woven fabric, the preparation method comprising the following steps:

[0008] (1) using semi-gloss polyester as warp yarn and viscose fiber as weft yarn, weaving with a five-satin weave structure to obtain a grey cloth;

[0009] (2) sequentially performing pretreatment, pre-baking, printing, baking, color fixing steaming, washing and shaping treatment on the grey fabric obtained in step (1) to obtain the polyester-viscose printed woven fabric;

[0010] Taking the total mass of the printing paste used for the printing as 100%, the amount of each component contained in the printing paste is as follows: 45-55% of composite paste slurry (for example, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54% or 55%, etc.), 1-1.5% of card glue (for example, 1%, 1.05%, 1.1%, 1.15%, 1.2%, 1.25%, 1.3%, 1.35%, 1.4%, 1.45% or 1.5%, etc.), resist Salt 0.5-1.5% (for example 0.5%, 0.7%, 0.9%, 1.1%, 1.3% or 1.5%, etc.), urea 4-6% (for example 4%, 4.2%, 4.4%, 4.6%, 4.8%, 5%, 5.2%, 5.4%, 5.6%, 5.8% or 6%, etc.), reactive dye 5-10% (for example 5%, 6%, 7%, 8%, 9% or 10%, etc.), disperse dye 3-8% (for example 3%, 4%, 5%, 6%, 7% or 8%, etc.) and the balance water.

[0011] On the one hand, the preparation method of the polyester-viscose printed woven fabric provided by the present invention adopts semi-bright polyester as the warp yarn, and is matched with viscose fiber as the weft yarn, and is woven with a five-satin weave structure, so that the woven grey cloth can have a front and a back side, the front side reflects the warp yarn characteristics, and the semi-bright polyester as the warp yarn can not only ensure the smooth weaving, but also increase the smoothness and smoothness of the front side of the grey cloth; the back side reflects the weft yarn characteristics, and the viscose fiber as the weft yarn effectively improves the skin-friendly comfort of the grey cloth; the above two yarns are used in combination, and are matched with the five-satin weave structure, so that the woven grey cloth not only has a soft luster and a soft feel, but also has dense drape and good air permeability;

[0012] On the other hand, the preparation method provided by the present invention sequentially pre-treats, pre-drys, prints, bakes, color-fixing steams, washes and sets the grey cloth obtained by weaving, and limits the printing paste used for printing to contain a specific content of composite paste slurry, so that the obtained polyester-viscose printed woven fabric has excellent dyeing effect, high dyeing rate and uniform coloring without white exposure; specifically, the pre-treatment can make the semi-bright polyester soft, so that the dye can enter the inner core from the outer skin layer of the semi-bright polyester fiber, thereby improving the dyeing rate of the dye; the pre-drying can prevent the treatment liquid absorbed by the grey cloth from migrating to the fabric surface too quickly at an excessively high temperature, thereby affecting the color fixing rate and color fastness; the composite paste slurry is added during the printing process, and the addition of the composite paste slurry can effectively compatibility the active dye and the disperse dye in the printing paste, thereby effectively solving the problem of low dye coloring rate and obvious white exposure on the cloth surface due to uneven coloring.

[0013] In summary, the preparation method provided by the present invention selects specific yarns and tissue structures, and at the same time limits the printing paste to include a composite paste slurry, so that the polyester-viscose printed woven fabric prepared by the preparation method not only has a soft luster and a soft feel, but also has good air permeability and dyeing effect, a high dyeing rate and uniform coloring, no whitening problem, and is not easy to wrinkle or get hairy after washing, and has good ironing performance.

[0014] Preferably, the semi-gloss polyester is 50D semi-gloss polyester, and the viscose fiber is 60S viscose fiber; the combination of the above two yarns can make the resulting polyester-viscose printed woven fabric present a faint silk-like gloss and a soft feel.

[0015] Preferably, the mass ratio of the semi-bright polyester fiber to the viscose fiber is (50-60):(50-40), for example, 50:50, 52:48, 54:46, 56:44, 58:42 or 60:40, etc.

[0016] Preferably, the warp density of the grey cloth is 250 to 260 strands / inch, for example, 250 strands / inch, 251 strands / inch, 252 strands / inch, 253 strands / inch, 254 strands / inch, 255 strands / inch, 256 strands / inch, 257 strands / inch, 258 strands / inch or 259 strands / inch.

[0017] Preferably, the weft density of the grey cloth is 100 to 110 strands / inch, for example, 100 strands / inch, 101 strands / inch, 102 strands / inch, 103 strands / inch, 104 strands / inch, 105 strands / inch, 106 strands / inch, 107 strands / inch, 108 strands / inch, 109 strands / inch or 110 strands / inch, etc.

[0018] Preferably, the weight of the grey fabric is ≥100g / m 2 , for example 100g / m 2 , 105g / m 2 , 110g / m 2 , 112g / m 2 , 114g / m 2 , 116g / m 2 , 118g / m 2 , 120g / m 2 , 122g / m 2 , 124g / m 2 , 126g / m 2 , 128g / m 2 or 130g / m 2 wait.

[0019] Preferably, the weaving method is five-piece three-fly.

[0020] Preferably, the weaving is carried out in a water jet loom.

[0021] Preferably, the pre-treatment method includes the steps of performing alkali weight reduction treatment on the grey cloth and then taking it out; performing alkali weight reduction treatment on the grey cloth, that is, performing alkali weight reduction treatment on the semi-bright polyester and viscose fibers. On the one hand, the alkali weight reduction treatment can make the semi-bright polyester feel softer, and at the same time can promote the entry of the dye from the outer skin layer of the polyester fiber into the inner core during the subsequent printing process, thereby improving the dye uptake rate; on the other hand, the alkali weight reduction treatment can make the viscose fiber fully swell and expand, thereby increasing the space between the fiber macromolecules, increasing the contact area between the dye and the viscose fiber during the subsequent printing process, thereby improving the dye uptake rate; in addition, the alkali weight reduction treatment can also solve the problem of poor compatibility between disperse dyes and reactive dyes, reduce the printing process requirements, and improve the dye uptake rate of the subsequent printing process.

[0022] In the present invention, the alkali solution includes a sodium hydroxide solution, and the pH value of the sodium hydroxide solution is 11-12.

[0023] Preferably, the pre-baking temperature is 70-80°C, for example, 70°C, 72°C, 74°C, 76°C, 78°C or 80°C.

[0024] Preferably, the pre-baking time is 6 to 10 min, for example, 6 min, 6.5 min, 7 min, 7.5 min, 8 min, 8.5 min, 9 min, 9.5 min or 10 min.

[0025] Preferably, the bath ratio of the printing is 1:(5-6), for example, 1:5, 1:5.2, 1:5.4, 1:5.6, 1:5.8 or 1:6, etc.

[0026] Preferably, based on the total mass of the composite paste slurry as 100%, the dosage of each component contained in the composite paste slurry is as follows: 50-60% sodium alginate (for example, 50%, 52%, 54%, 56%, 58% or 60%, etc.), 20-30% sodium carboxymethyl cellulose (for example, 20%, 22%, 24%, 26%, 28% or 30%, etc.), 5-15% benzyl alcohol (for example, 5%, 7%, 9%, 11%, 13% or 15%, etc.) and 5-10% polyvinylpyrrolidone (for example, 5%, 6%, 7%, 8%, 9% or 10%, etc.); the above components are combined within a specific dosage range as a composite paste material and added to the printing paste, which can improve the compatibility of reactive dyes and disperse dyes, thereby improving the coloring rate and coloring uniformity of the fabric, and avoiding problems such as whitening due to low coloring rate and uneven coloring on the cloth.

[0027] Preferably, the baking temperature is 170-180°C, for example, 170°C, 172°C, 174°C, 176°C, 178°C or 180°C.

[0028] Preferably, the baking time is 2 to 5 min, for example, 2 min, 2.5 min, 3 min, 3.5 min, 4 min, 4.5 min or 5 min.

[0029] Preferably, the temperature of the color fixing steaming is 100-110°C, for example, 100°C, 102°C, 104°C, 106°C, 108°C or 110°C.

[0030] Preferably, the fixation steaming time is 7 to 10 min, for example, 7 min, 7.5 min, 8 min, 8.5 min, 9 min, 9.5 min or 10 min.

[0031] Preferably, the washing comprises the steps of cold water rinsing, soap washing, cold water washing and hot water washing.

[0032] Among them, the cloth speed should be fast during the cold water washing to reduce the contact time between the washed dye and the cloth. At the same time, strong washing is required. The above-mentioned cold water washing and soap washing are carried out after the color fixing steaming, which can effectively solve the color staining problem generated during the printing process.

[0033] Preferably, the soaping temperature is 90-95°C, for example, 90°C, 90.5°C, 91°C, 91.5°C, 92°C, 92.5°C, 93°C, 93.5°C, 94°C, 94.5°C or 95°C, etc.

[0034] Preferably, the soap washing time is 3 to 5 minutes, for example, 3 minutes, 3.5 minutes, 4 minutes, 4.5 minutes or 5 minutes.

[0035] Preferably, the temperature of the hot water for washing with hot water is 80-90°C, for example, 80°C, 82°C, 84°C, 86°C, 88°C or 90°C.

[0036] Preferably, after the washing is completed, the steps of neutralization and drying are also included.

[0037] Preferably, the shaping temperature is 170-175°C, for example, 170°C, 171°C, 172°C, 173°C, 174°C or 175°C; shaping within the above temperature range can effectively control the shrinkage rate of the fabric within ±3%, and at the same time improve the feel of the fabric.

[0038] Preferably, after the shaping, the steps of tentering and inspection are also included.

[0039] As a preferred technical solution of the present invention, the preparation method of the polyester-viscose printed woven fabric comprises the following steps:

[0040] (1) Weaving: A water jet loom is used, with 50D semi-gloss polyester as the warp yarn and 60S viscose fiber as the weft yarn, and the weaving is carried out according to the five-piece satin structure. The weaving method is five-piece three-fly, and the warp density is 250-260 strands / inch, the weft density is 100-110 strands / inch, and the gram weight is ≥100g / m 2 Grey fabric;

[0041] (2) Pretreatment: Immerse the woven grey fabric in alkali solution for alkali reduction treatment and take it out;

[0042] (3) Pre-drying: Dry the pre-treated grey cloth at 70-80°C for 6-10 minutes;

[0043] (4) Printing: Printing the pre-baked grey cloth with a printing paste, wherein the total mass of the printing paste is 100%, the dosage of each component thereof is as follows: 45-55% of composite paste slurry, 1-1.5% of carboxylic acid glue, 0.5-1.5% of resist salt, 4-6% of urea, 5-10% of reactive dye, 3-8% of disperse dye and the balance of water; and the total mass of the composite paste slurry is 100%, the dosage of each component thereof is as follows: 50-60% of sodium alginate, 20-30% of sodium carboxymethyl cellulose, 5-15% of benzyl alcohol and 5-10% of polyvinyl pyrrolidone, and the bath ratio of printing is 1:(5-6));

[0044] (5) Baking: Baking the printed fabric at 170-180°C for 2-5 minutes;

[0045] (6) Color fixing steaming: Steam the baked fabric at 100-110°C for 7-10 minutes;

[0046] (7) Washing: The fabric after the color fixing steaming is sequentially subjected to cold water rinsing, soap washing, cold water washing and hot water washing, wherein the soap washing temperature is 90-95°C for 3-5 minutes, and the hot water washing temperature is 80-90°C;

[0047] (8) neutralizing, drying, stretching and inspecting the washed fabric to obtain the polyester-viscose printed woven fabric.

[0048] In a second aspect, the present invention provides a polyester-viscose printed woven fabric, wherein the polyester-viscose printed woven fabric is prepared by the preparation method described in the first aspect.

[0049] In a third aspect, the present invention provides a garment comprising the polyester-viscose printed woven fabric as described in the second aspect.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] The preparation method of the polyester-viscose printed woven fabric provided by the present invention comprises the following steps: using semi-gloss polyester as warp yarn and viscose fiber as weft yarn, weaving with a five-satin weave structure to obtain grey cloth, and then sequentially performing pre-treatment, pre-baking, printing, baking, color fixing steaming, washing and shaping treatment on the obtained grey cloth, and the printing paste used for the printing comprises a composite paste slurry with a specific content; through the matching of the above-mentioned yarns and the selection of the weave structure, it is limited that the printing paste contains the composite paste slurry, so that the polyester-viscose printed woven fabric prepared by the preparation method not only has a soft luster and a soft feel, but also has good air permeability and dyeing effect, uniform coloring, no whitening problem, high flatness, not easy to wrinkle and not easy to get hairy after washing, and good ironing-free performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the organizational structure of the polyester-viscose printed woven fabric provided in Example 1. DETAILED DESCRIPTION

[0053] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0054] Unless otherwise specified, the raw materials involved in the following specific embodiments are all existing materials and can be purchased from commercial products.

[0055] Preparation Examples 1 to 6

[0056] Preparation Examples 1 to 6 provide a composite paste slurry, respectively. Taking the total mass of the composite paste slurry as 100%, the components and amounts thereof are shown in Table 1. In Table 1, the amount units of each component are "%".

[0057] Table 1

[0058]

[0059] The preparation method of the composite paste slurry provided in Preparation Examples 1 to 6 includes: uniformly mixing sodium alginate, sodium carboxymethyl cellulose, benzyl alcohol and polyvinyl pyrrolidone to obtain the composite paste slurry.

[0060] Example 1

[0061] A method for preparing a polyester-viscose printed woven fabric comprises the following steps:

[0062] (1) Weaving: 50D semi-bright polyester was used as the warp yarn and 60S viscose fiber was used as the weft yarn. The fabric was woven on an imported water jet loom according to the five-piece satin weave structure. The speed of the water jet loom was 800 rpm. The weaving method was five-piece three-fly. The front side of the woven grey fabric showed the characteristics of 60S viscose fiber, and the back side showed the characteristics of 50D semi-bright polyester. The mass ratio of 60S viscose fiber to 50D semi-bright polyester in the grey fabric was 43:57. The weight of the grey fabric was 110 g / m 2 The warp density is 250 strands / inch, the weft density is 101 strands / inch, and the organizational structure diagram of the obtained grey cloth is as follows: Figure 1 As shown;

[0063] (2) Pretreatment: The obtained grey cloth is subjected to alkali reduction treatment in a sodium hydroxide solution with a pH value of 8 for 8 minutes;

[0064] (3) Pre-baking: pre-baking the pre-treated grey cloth at 80°C for 6 minutes;

[0065] (4) Printing: The pre-baked grey cloth is printed with a printing paste, the bath ratio of the printing treatment is 1:5, and the total mass of the printing paste is 100%, and the amounts of the components included are: 50% of the composite paste (Preparation Example 1), 1.2% of the carboxylic acid glue, 1% of the resist salt, 5% of the urea, 8% of the reactive dye (including reactive brilliant yellow X-6G, reactive red 3BS and reactive real blue CA in a mass ratio of 2.5:3.5:2), 5% of the disperse dye (including disperse red WW-3BS, tolas yellow 8GFF and tolas WW-KSN black in a mass ratio of 0.5:2:2.5) and the balance of water;

[0066] (5) Baking: Baking the printed fabric at 175°C for 2 min;

[0067] (6) Color fixing steaming: Steam the baked fabric at 110°C for 8 minutes;

[0068] (7) Washing: Rinse the fabric after color fixing steaming with cold water first, then soap wash at 95℃ for 3 minutes, rinse with hot water at 85℃, and finally rinse with cold water;

[0069] (8) The washed fabric is neutralized, dried, stretched and inspected in sequence to obtain the polyester-viscose printed woven fabric.

[0070] Example 2

[0071] A method for preparing a polyester-viscose printed woven fabric comprises the following steps:

[0072] (1) Weaving: 50D semi-bright polyester was used as the warp yarn and 60S viscose fiber was used as the weft yarn. The fabric was woven on an imported water jet loom according to the five-piece satin weave structure. The speed of the water jet loom was 800 rpm. The weaving method was five-piece three-fly. The front side of the woven grey fabric showed the characteristics of 60S viscose fiber, and the back side showed the characteristics of 50D semi-bright polyester. The mass ratio of 60S viscose fiber to 50D semi-bright polyester in the grey fabric was 48:52. The weight of the grey fabric was 110 g / m 2 , the warp density is 255 strands / inch, and the weft density is 105 strands / inch;

[0073] (2) Pretreatment: The obtained grey cloth is subjected to alkali reduction treatment in a sodium hydroxide solution with a pH value of 9 for 10 min;

[0074] (3) Pre-baking: pre-baking the pre-treated grey cloth at 70°C for 10 min;

[0075] (4) Printing: The pre-baked grey cloth is printed with a printing paste, the bath ratio of the printing treatment is 1:6, and the total mass of the printing paste is 100%, and the amounts of the components included are: 45% of the composite paste (Preparation Example 2), 1.5% of the carboxylic acid, 1% of the resist salt, 5% of the urea, 8% of the reactive dye (including reactive brilliant yellow X-6G, reactive red 3BS and reactive real blue CA in a mass ratio of 2.5:3.5:2), 5% of the disperse dye (including disperse red WW-3BS, tolas yellow 8GFF and tolas WW-KSN black in a mass ratio of 0.5:2:2.5) and the balance of water;

[0076] (5) Baking: Baking the printed fabric at 180°C for 2 min;

[0077] (6) Color fixing steaming: Steam the baked fabric at 105°C for 7 minutes;

[0078] (7) Washing: Rinse the fabric after color fixing steaming with cold water first, then soap wash at 90℃ for 5 minutes, rinse with hot water at 90℃, and finally rinse with cold water;

[0079] (8) The washed fabric is neutralized, dried, stretched and inspected in sequence to obtain the polyester-viscose printed woven fabric.

[0080] Example 3

[0081] A method for preparing a polyester-viscose printed woven fabric comprises the following steps:

[0082] (1) Weaving: 50D semi-bright polyester was used as the warp yarn and 60S viscose fiber was used as the weft yarn. The fabric was woven on an imported water jet loom in accordance with a five-piece satin weave structure. The speed of the water jet loom was 800 rpm. The weaving method was five-piece three-fly. The front side of the woven grey fabric showed the characteristics of 60S viscose fiber, and the back side showed the characteristics of 50D semi-bright polyester. The mass ratio of 60S viscose fiber to 50D semi-bright polyester in the grey fabric was 50:50. The weight of the grey fabric was 110 g / m 2 , the warp density is 258 strands / inch, and the weft density is 110 strands / inch;

[0083] (2) Pretreatment: The obtained grey cloth is subjected to alkali reduction treatment in a sodium hydroxide solution with a pH value of 8 for 8 minutes;

[0084] (3) Pre-baking: pre-baking the pre-treated grey cloth at 75°C for 10 min;

[0085] (4) Printing: The pre-baked grey cloth is printed with a printing paste, the bath ratio of the printing treatment is 1:5, and the total mass of the printing paste is 100%, and the amounts of the components included are: 55% of the composite paste (Preparation Example 3), 1% of the carboxylic acid, 1% of the resist salt, 5% of the urea, 8% of the reactive dye (including reactive brilliant yellow X-6G, reactive red 3BS and reactive real blue CA in a mass ratio of 2.5:3.5:2), 5% of the disperse dye (including disperse red WW-3BS, tolas yellow 8GFF and tolas WW-KSN black in a mass ratio of 0.5:2:2.5) and the balance of water;

[0086] (5) Baking: Baking the printed fabric at 170°C for 5 min;

[0087] (6) Color fixing steaming: Steam the baked fabric at 100°C for 10 min;

[0088] (7) Washing: Rinse the fabric after color fixing steaming with cold water first, then soap wash at 90℃ for 3 minutes, rinse with hot water at 85℃, and finally rinse with cold water;

[0089] (8) The washed fabric is neutralized, dried, stretched and inspected in sequence to obtain the polyester-viscose printed woven fabric.

[0090] Embodiments 4 to 6

[0091] A method for preparing a polyester-viscose printed woven fabric is different from Example 1 in that the composite paste slurry provided in Preparation Examples 4 to 6 is used to replace the composite paste slurry provided in Preparation Example 1, and other raw materials, steps and parameters are the same as those in Example 1.

[0092] Comparative Example 1

[0093] A method for preparing a polyester-viscose printed woven fabric, which differs from Example 1 in that the composite paste slurry provided in Preparation Example 1 is not added to the printing paste, and other raw materials, steps and parameters are the same as those in Example 1.

[0094] Comparative Example 2

[0095] A method for preparing a polyester-viscose printed woven fabric, which differs from Example 1 in that no pre-baking step is performed, and the pre-treated grey fabric is directly printed, and other raw materials, steps and parameters are the same as those in Example 1.

[0096] Comparative Example 3

[0097] A method for preparing a polyester-viscose printed woven fabric, which differs from Example 1 in that no soaping is performed during the washing process, and other raw materials, steps and parameters are the same as those in Example 1.

[0098] Comparative Examples 4-5

[0099] A method for preparing a polyester-viscose printed woven fabric is different from Example 1 in that the mass percentage of the composite paste slurry provided in Preparation Example 1 in the printing paste is 40% and 60%, and other raw materials, steps and parameters are the same as those in Example 1.

[0100] Performance Test:

[0101] (1) Air permeability: Tested according to the test method provided in GB / T 5453-1997.

[0102] (2) Flatness: Test according to the test method provided in GB / T 18863-2002.

[0103] (3) Hair sticking degree: Test according to the test method provided in Appendix A of Q / XNZZ 02-2022.

[0104] (4) Color fastness: Tested in accordance with the test method provided in GB 18401-2010.

[0105] (5) Color uniformity: Observe whether there is white exposure on the polyester-viscose printed woven fabric.

[0106] The polyester-viscose printed woven fabrics provided in Examples 1 to 6 and Comparative Examples 1 to 5 were tested according to the above test method. The test results are shown in Table 2:

[0107] Table 2

[0108]

[0109]

[0110] From the data in Table 2, we can see that:

[0111] (1) The air permeability of the polyester-viscose printed woven fabrics prepared by the preparation methods provided in Examples 1 to 3 is 428 to 130 mm / s, the flatness grade can reach grade 4, the number of viscose hairs is ≤80, and there is no white exposure, and the color uniformity is high.

[0112] (2) Compared with Example 1, the composite paste slurry in the printing paste used in Examples 4 to 6 lacks sodium alginate, sodium carboxymethyl cellulose or polyvinyl pyrrolidone, resulting in the obtained polyester-viscose printed woven fabrics being unable to have both high flatness and color uniformity.

[0113] (3) Compared with Example 1, the printing paste used in Comparative Example 1 did not contain the composite paste slurry, resulting in the color fastness of the obtained polyester-viscose printed woven fabric being only Grade 3, and obvious whitening occurred, and the color uniformity was very poor; the preparation method provided in Comparative Example 2 did not perform the pre-drying step, resulting in the poor flatness of the obtained polyester-viscose printed woven fabric, which was only Grade 2; the washing process of the preparation method provided in Comparative Example 3 did not perform the soaping step, resulting in the poor hair retention of the obtained polyester-viscose printed woven fabric; the above contents indicate that it is very important to add the composite paste slurry to the printing paste and perform the pre-drying and soaping steps.

[0114] (4) Compared with Example 1, the addition amount of the composite paste slurry in the printing paste used in Comparative Examples 4 to 5 is too low or too high, which also results in the polyester-viscose printed woven fabrics being unable to have both excellent flatness and color uniformity.

[0115] The applicant declares that the present invention illustrates a polyester-viscose printed woven fabric and its preparation method and application through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of various raw materials of the product of the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A method for preparing a polyester-viscose printed woven fabric, characterized in that: The preparation method comprises the following steps: (1) using semi-gloss polyester as warp yarn and viscose fiber as weft yarn, weaving with a five-satin weave structure to obtain a grey cloth; (2) subjecting the grey fabric obtained in step (1) to pretreatment, pre-baking, printing, baking, color fixing steaming, washing and shaping in sequence to obtain the polyester-viscose printed woven fabric; Taking the total mass of the printing paste used for printing as 100%, the dosage of each component contained in the printing paste is as follows: 45-55% of composite paste slurry, 1-1.5% of carboxylic acid, 0.5-1.5% of resist salt, 4-6% of urea, 5-10% of reactive dye, 3-8% of disperse dye and the balance of water.

2. The preparation method according to claim 1, characterized in that: The semi-gloss polyester is 50D semi-gloss polyester, and the viscose fiber is 60S viscose fiber; Preferably, the mass ratio of the semi-bright polyester fiber to the viscose fiber is (50-60):(50-40).

3. The preparation method according to claim 1 or 2, characterized in that: The warp density of the grey cloth is 250-260 strands / inch, and the weft density is 100-110 strands / inch; Preferably, the weight of the grey fabric is ≥100g / m 2 ; Preferably, the weaving method is five pieces and three flies; Preferably, the weaving is carried out in a water jet loom.

4. The preparation method according to any one of claims 1 to 3, characterized in that: The pre-treatment method comprises the steps of immersing the grey cloth in an alkali solution for alkali weight reduction treatment and then taking it out; Preferably, the pre-baking temperature is 70-80° C. and the time is 6-10 minutes.

5. The preparation method according to any one of claims 1 to 4, characterized in that: The bath ratio of the printing is 1:(5-6); Preferably, based on the total mass of the composite paste slurry as 100%, the amounts of the various components contained in the composite paste slurry are as follows: 50-60% sodium alginate, 20-30% sodium carboxymethyl cellulose, 5-15% benzyl alcohol and 5-10% polyvinyl pyrrolidone.

6. The preparation method according to any one of claims 1 to 5, characterized in that: The baking temperature is 170-180°C and the baking time is 2-5 minutes; Preferably, the temperature of the color fixing steaming is 100-110° C., and the time is 7-10 min.

7. The preparation method according to any one of claims 1 to 6, characterized in that: The washing comprises the steps of cold water rinsing, soap washing, cold water washing and hot water washing; Preferably, the soap washing temperature is 90-95°C and the time is 3-5 minutes; Preferably, the hot water temperature of the hot water washing is 80-90°C; Preferably, after the washing is completed, the steps of neutralization and drying are also included.

8. The preparation method according to any one of claims 1 to 7, characterized in that: The setting temperature is 170-175°C; Preferably, the shaping process further includes steps of tentering and inspection.

9. A polyester-viscose printed woven fabric, characterized in that: The polyester-viscose printed woven fabric is prepared by the preparation method according to any one of claims 1 to 8.

10. A garment, characterized in that: The garment comprises the polyester-viscose printed woven fabric as claimed in claim 9.

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