Printed silk and cotton blended fabric and production process thereof

Abstract

The invention relates to a novel printed silk and cotton blended fabric and a production process thereof. The production process comprises the following steps of sizing, digital printing, ageing, washing and sizing. Different from the prior art, in the technical scheme, hydroxyl groups in silk fibers are ionized by controlling the pH value of the active sizing agent to be 8.0-9.0 to generate negative oxygen ions, and s-triazine type active groups or vinyl sulfone active groups in the active dye and the negative oxygen ions are subjected to nucleophilic substitution or nucleophilic addition reaction, so that the silk fibers are formed. Therefore, firm covalent bonds are formed between dye molecules and silk fibers, and the silk fibers and cotton fibers in the silk-cotton blended fabric can be printed synchronously.

Description

Technical Field

[0001] The invention relates to the field of textiles, and in particular to a printed silk-cotton blended fabric and a production process thereof. Background Art

[0002] At present, in the textile field, silk fabrics are generally printed with acid dyes under acidic conditions, while cotton fabrics are generally printed with reactive dyes under alkaline conditions. Their respective production processes are very mature and account for a large proportion of textile printing in my country. For the printing of silk fiber / cotton fiber interwoven or blended fabrics, when the silk content is large (usually above 90%), the cotton fiber can be ignored and acid dyes can be used for printing alone; similarly, when the cotton content is large (usually above 90%), the silk can be ignored and reactive dyes can be used for printing alone. However, when the silk fiber content is close to the cotton fiber content, it is impossible to use a single acid dye or reactive dye for printing, otherwise only one of the fibers can be dyed, while the other fiber is exposed, resulting in the cloth surface becoming a hemp color, which seriously affects the appearance quality of the printed products. Summary of the invention

[0003] In view of the above problems, the present application provides a new printed silk-cotton blended fabric and a production process thereof, in which silk fibers and cotton fibers are printed simultaneously under alkaline conditions and the color fastness requirements are met.

[0004] The first aspect of the present application provides a production process for printed silk-cotton blended fabrics, comprising the following steps: sizing: sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric; the active sizing agent is prepared by mixing urea, sodium bicarbonate, sodium alginate and soft water; the pH of the active sizing agent is controlled at 8.0-9.0;

[0005] Digital printing: the sizing fabric is subjected to inkjet printing with active ink and a digital printer to obtain printed fabric; the active ink contains active dyes, and the active groups of the active dyes are s-triazine type active groups and / or vinyl sulfone active groups;

[0006] Steaming: steaming the printed fabric to obtain a steamed fabric;

[0007] Washing: washing the steamed fabric to obtain washed fabric;

[0008] Shaping: The washed fabric is subjected to heat drying and shaping to obtain the printed silk-cotton blended fabric.

[0009] Different from the prior art, the present technical solution controls the pH of the active sizing agent to 8.0-9.0, so that the hydroxyl groups in the silk fibers are ionized to generate negative oxygen ions. At the same time, the triazine-type active groups or vinyl sulfone active groups in the active dyes react with the negative oxygen ions by nucleophilic substitution or nucleophilic addition, thereby forming a strong covalent bond between the dye molecules and the silk fibers. Therefore, silk fibers and cotton fibers can be printed simultaneously.

[0010] Furthermore, in the sizing step, the active sizing material contains 8-15% urea, 2-4% sodium bicarbonate, 3-6% sodium alginate, and the remainder is soft water.

[0011] Furthermore, in the sizing step, the active sizing material also includes anti-dyeing salt.

[0012] Furthermore, in the sizing step, 8-15% urea, 2-4% sodium bicarbonate, 1%-2.5% resist salt, and 3-6% sodium alginate are mixed with soft water to obtain the active sizing material.

[0013] Furthermore, in the digital printing step, the active group is a monochlorotriazine active group.

[0014] Furthermore, in the steaming step, the printed fabric is steamed with saturated steam at 102-107° C. for 5-12 minutes.

[0015] Furthermore, the washing step includes, in sequence, a first cold water wash, a first soap boil, a second soap boil and a second cold water wash.

[0016] Furthermore, the first cold water wash has a washing time of 8-12 minutes, and is washed twice; the first soap boiling is performed at 40° C. for 8-10 minutes, and is boiled twice; the second soap boiling is performed at 90° C. for 8-10 minutes, and is boiled twice, and the second cold water wash has a washing time of 5 minutes, and is washed once.

[0017] Furthermore, in the shaping step, the heat drying and shaping temperature is 100-110°C.

[0018] A second aspect of the present application provides a printed silk-cotton blended fabric, which is produced using the production process described in the first aspect of the present application.

[0019] Different from the prior art, in the present technical solution, the silk fibers and cotton fibers in the silk-cotton blended fabric are digitally printed simultaneously in an alkaline environment, and the isotriazine active groups and / or vinyl sulfone active groups in the reactive dyes are firmly combined with the silk fibers and cotton fibers, so that the printed patterns on the fabric are clear, with bright colors and good color fastness.

[0020] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the written contents of the specification, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the specific implementation mode and drawings of the present application are explained below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0022] In the drawings of the specification:

[0023] Figure 1 This is a photo of the printed silk-cotton blended fabric prepared in Example 1. DETAILED DESCRIPTION

[0024] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0026] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0027] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0028] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0029] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0030] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0031] The reactive dyes described in this application are an important type of dyes. Their molecular structure contains reactive groups that can react with -OH, -NH2, etc. in the fiber to form a covalent bond. This bonding method makes the fastness after dyeing better, especially the wet fastness. The general structural formula of reactive dyes is: S-D-B-R; S: water-soluble group, such as -SO3Na; D: dye matrix, which determines the color, brightness, fastness and directness of the dye; B: connecting group, generally -NH-; R: reactive group, which determines the reactivity, color fixation rate, hydrolysis stability, storage stability and other properties of the dye.

[0032] The first aspect of the present application provides a production process for printed silk-cotton blended fabrics, comprising the following steps: sizing: sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric; the active sizing agent is prepared by mixing urea, sodium bicarbonate, sodium alginate and soft water; the pH of the active sizing agent is controlled at 8.0-9.0;

[0033] Digital printing: the sizing fabric is subjected to inkjet printing with active ink and a digital printer to obtain printed fabric; the active ink contains active dyes, and the active groups of the active dyes are s-triazine type active groups and / or vinyl sulfone active groups;

[0034] Steaming: steaming the printed fabric to obtain a steamed fabric;

[0035] Washing: washing the steamed fabric to obtain washed fabric;

[0036] Shaping: The washed fabric is subjected to heat drying and shaping to obtain the printed silk-cotton blended fabric.

[0037] The sizing step can reduce the penetration of ink, improve the fineness and clarity of printing, and at the same time provide urea and sodium bicarbonate to provide an alkaline environment of pH 8.0-9.0 for the ionization of hydroxyl groups in the fiber, ensuring good bonding between the dye and the fiber.

[0038] During the steaming step, the dye and the fiber mainly undergo chemical reactions to form covalent bonds, and the reactive dye can be firmly combined with the fiber to obtain bright colors and good color fastness.

[0039] In the prior art, silk fibers are dyed under acidic conditions. Because under acidic conditions, the basic groups such as amino groups on the silk fibers will partially ionize hydrogen ions, so that the fibers have a certain positive charge. Reactive dye molecules usually contain water-soluble groups such as sulfonic acid groups, which will ionize hydrogen ions under acidic conditions, making the dye molecules negatively charged. In this way, ionic bonds will be formed between the positively charged silk fibers and the negatively charged reactive dye molecules through electrostatic attraction, so that the dye is more firmly adsorbed on the fiber surface.

[0040] Different from the prior art, the present technical solution controls the pH of the active sizing agent to be between 8.0 and 9.0, so that the hydroxyl groups in the silk fibers are ionized to generate negative oxygen ions. The isotriazine-type active groups or vinyl sulfone active groups in the active dyes react with the negative oxygen ions by nucleophilic substitution or nucleophilic addition, thereby forming a strong covalent bond between the dye molecules and the silk fibers. Therefore, the silk fibers and cotton fibers in the silk-cotton blended fabric can be printed simultaneously.

[0041] Furthermore, in the sizing step, the active sizing material contains 8-15% urea, 2-4% sodium bicarbonate, 3-6% slurry, and the remainder is soft water.

[0042] Furthermore, in the sizing step, the active sizing material also includes anti-dyeing salt.

[0043] Dye-resist salt is a weak oxidant. Its function is to prevent some sensitive active dyes from being destroyed by reducing substances and changing color during the evaporation step. It needs to be added when dyeing sensitive colors (such as gray).

[0044] Furthermore, in the sizing step, 8-15% urea, 2-4% sodium bicarbonate, 1%-2.5% resist salt, 3-6% sizing agent and soft water are mixed to obtain the active sizing agent.

[0045] Furthermore, the fabric should be digitally printed within 30 minutes after sizing, or stored in a sealed environment with a humidity of 50-70% to prevent the active sizing material from absorbing moisture from the air and causing deterioration. Excessive moisture in the active sizing material will cause problems such as pattern penetration or insufficient color depth during the digital printing step.

[0046] Fabric sizing can be divided into single-side sizing and double-side sizing. Single-side sizing is done by using a rotary screen or flat screen printing machine or a coating machine, and the sizing is evenly covered on the surface of the fabric through the screen by the pressure of a magnetic rod or a scraper. Double-side sizing is also called padding sizing (rolling rate 80%-90%), which is to squeeze the sizing onto the fabric through a padding car. By modifying the stenter setting machine, it can also be used for the double-side sizing process of digital printing.

[0047] During sizing, attention should be paid to the problem of fabric weft skew. Once the fabric weft is skewed, the fabric cannot be laid flat on the guide belt during the subsequent printing process, resulting in unevenness, which is easy to rub the nozzle, affecting the pattern quality and the service life of the nozzle.

[0048] Furthermore, in the digital printing step, the active group is a monochlorotriazine active group.

[0049] The reactive group of monochlorotriazine is weak and is suitable for dyeing above 90°C. It can react with fibers under strong alkaline conditions and is also called thermosetting reactive dye. The dye is not easily hydrolyzed and has good storage stability. The hydrolysis stability of the "dye-fiber" covalent bond is better than that of the dichlorotriazine type, which also has an s-triazine type active group.

[0050] Furthermore, in the steaming step, the printed fabric is steamed with saturated steam at 102-107° C. for 5-12 minutes.

[0051] During the steaming process, saturated steam at 102-107°C for 5-12 minutes can better activate the reactivity of the active groups in the dye and promote the ionization of the hydroxyl groups in the silk fibers.

[0052] During the evaporation step, the active ink printed on the surface of the fabric absorbs water and swells, and the dye dissolves within the pattern of the active ink and diffuses and penetrates into the fiber. At the same time, under such hot and humid conditions, the internal voids of the macromolecular structure of the fiber increase, accepting the infiltration of the dye and forming various chemical bonds with it, thereby fixing the dye on the fiber. (The isotriazine active groups or vinyl sulfone active groups in the active dye will undergo nucleophilic substitution or nucleophilic addition reactions with negative oxygen ions, thereby forming a strong covalent bond between the dye molecule and the silk fiber.)

[0053] Furthermore, the washing step includes, in sequence, a first cold water wash, a first soap boil, a second soap boil and a second cold water wash.

[0054] Furthermore, the first cold water wash has a washing time of 8-12 minutes, and is washed twice; the first soap boiling is performed at 40° C. for 8-10 minutes, and is boiled twice; the second soap boiling is performed at 90° C. for 8-10 minutes, and is boiled twice, and the second cold water wash has a washing time of 5 minutes, and is washed once.

[0055] Furthermore, in the shaping step, the heat drying and shaping temperature is 100-110° C. to avoid the yellowing of the fabric due to excessively high drying temperature.

[0056] A second aspect of the present application provides a printed silk-cotton blended fabric, which is produced using the production process described in the first aspect of the present application.

[0057] Different from the prior art, in the technical scheme, the silk fibers and cotton fibers in the silk-cotton blended fabric are simultaneously subjected to reactive printing in an alkaline environment, and the isotriazine-type reactive groups and / or vinyl sulfone reactive groups in the reactive dyes are firmly combined with the silk fibers and cotton fibers, so that the printed patterns in the fabric are clear, bright in color and have good color fastness.

[0058] In this embodiment, the active ink is Huntsman's NOVACRON series, whose active group is monochlorotriazine active group; the soaping agent is Huntsman's ALBATEXAD soaping agent, and the resist salt is Huntsman's LYOPRINT RG resist salt. The digital printing machine is MS's digital printing machine JP6.

[0059] In this embodiment, the surface of the silk-cotton blended fabric used is clean and free of impurities, and the drying temperature is 110° C.; at the same time, the weft bias of the silk-cotton blended fabric is controlled within the standard of ≤3% for knitting and ≤1% for weaving.

[0060] In this embodiment, an open width sizing machine is used to sizing the fabric.

[0061] Embodiment 1 A printed silk-cotton blended fabric

[0062] Preparation of active sizing material: 10 kg urea, 3 kg sodium bicarbonate and 2 kg anti-dyeing salt were added to 82 kg soft water and mixed evenly, and then 3 kg sodium alginate was added and stirred at high speed for 30 minutes, and then the active sizing material was obtained after standing for 3 hours to remove foam; the pH of the active sizing material was controlled at 8.0-9.0;

[0063] Sizing: Sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric;

[0064] Digital printing: inkjet printing the sizing fabric with active ink and a digital printer to obtain printed fabric;

[0065] Steaming: steaming the printed fabric with 102° C. steam for 8 minutes to obtain a steamed fabric;

[0066] Washing: Wash the steamed fabric, including:

[0067] First cold water wash: cold water wash for 10 minutes, 2 times;

[0068] First soap boiling: Soap boiling at 40℃ for 8 minutes, 2 times;

[0069] Second soap boiling: Soap boiling at 90℃ for 8 minutes, 2 times;

[0070] Second cold water wash: wash in cold water for 5 minutes, once; get the washed fabric;

[0071] Setting: The washed fabric is heat set at 110°C to obtain the printed silk-cotton blended fabric, as shown in the photo. Figure 1 shown.

[0072] Embodiment 2 A kind of printed silk-cotton blended fabric

[0073] Preparation of active sizing material: 8 kg urea, 2 kg sodium bicarbonate, and 1 kg anti-dyeing salt were added to 86 kg soft water and mixed evenly, and then 3 kg sodium alginate was added and stirred at high speed for 30 minutes, and then the active sizing material was obtained after standing for 3 hours to remove bubbles; the pH of the active sizing material was controlled at 8.0-9.0;

[0074] Sizing: Sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric;

[0075] Digital printing: inkjet printing the sizing fabric with active ink and a digital printer to obtain printed fabric;

[0076] Steaming: steaming the printed fabric with 104° C. steam for 5 minutes to obtain a steamed fabric;

[0077] Washing: Wash the steamed fabric, including:

[0078] First cold water wash: cold water wash for 10 minutes, 2 times;

[0079] First soap boiling: Soap boiling at 40℃ for 8 minutes, 2 times;

[0080] Second soap boiling: Soap boiling at 90℃ for 8 minutes, 2 times;

[0081] Second cold water wash: wash in cold water for 5 minutes, once; get the washed fabric;

[0082] Setting: The washed fabric is heat-set at 110°C to obtain the printed silk-cotton blended fabric.

[0083] Preparation of active sizing material: 7.5 kg urea, 4 kg sodium bicarbonate, and 2.5 kg anti-dyeing salt were added to 80 kg soft water and mixed evenly, and then 6 kg sodium alginate was added and stirred at high speed for 30 minutes, and then the active sizing material was obtained after standing for 3 hours to remove bubbles; the pH of the active sizing material was controlled at 8.0-9.0;

[0084] Sizing: Sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric;

[0085] Digital printing: inkjet printing the sizing fabric with active ink and a digital printer to obtain printed fabric;

[0086] Steaming: steaming the printed fabric with saturated steam at 106° C. for 10 minutes to obtain a steamed fabric; washing: washing the steamed fabric, including:

[0087] First cold water wash: cold water wash for 10 minutes, 2 times;

[0088] First soap boiling: Soap boiling at 40℃ for 8 minutes, 2 times;

[0089] Second soap boiling: Soap boiling at 90℃ for 8 minutes, 2 times;

[0090] Second cold water wash: wash in cold water for 5 minutes, once; get the washed fabric;

[0091] Setting: The washed fabric is heat-set at 110°C to obtain the printed silk-cotton blended fabric.

[0092] Preparation of active sizing material: 5kg urea, 3kg sodium bicarbonate and 1kg anti-dyeing salt were added to 88kg soft water and mixed evenly, and then 3kg sodium alginate was added and stirred at high speed for 30min, and then left to stand for 3h to remove foam to obtain active sizing material; the pH of the active sizing material was controlled at 8.0-9.0;

[0093] Sizing: sizing the silk-cotton blended fabric with the active sizing material to obtain the sized fabric;

[0094] Digital printing: inkjet printing the sizing fabric with active ink and a digital printer to obtain printed fabric;

[0095] Steaming: steaming the printed fabric with saturated steam at 103° C. for 12 minutes to obtain a steamed fabric; washing: washing the steamed fabric, including:

[0096] First cold water wash: cold water wash for 10 minutes, 2 times;

[0097] First soap boiling: Soap boiling at 40℃ for 8 minutes, 2 times;

[0098] Second soap boiling: Soap boiling at 90℃ for 8 minutes, 2 times;

[0099] Second cold water wash: wash in cold water for 5 minutes, once; get the washed fabric;

[0100] Setting: The washed fabric is heat-set at 110°C to obtain the printed silk-cotton blended fabric.

[0101] Preparation of active sizing material: 10 kg urea and 3 kg sodium bicarbonate were added to 84 kg soft water and mixed evenly, and then 3 kg sodium alginate was added and stirred at high speed for 30 minutes, and then allowed to stand for 3 hours to remove bubbles to obtain active sizing material; the pH of the active sizing material was controlled at 8.0-9.0;

[0102] Sizing: Sizing the silk-cotton blended fabric with an active sizing agent to obtain a sized fabric;

[0103] Digital printing: inkjet printing the sizing fabric with active ink and a digital printer to obtain printed fabric;

[0104] Steaming: steaming the printed fabric with saturated steam at 107° C. for 5 minutes to obtain a steamed fabric; washing: washing the steamed fabric, including:

[0105] First cold water wash: cold water wash for 10 minutes, 2 times;

[0106] First soap boiling: Soap boiling at 40℃ for 8 minutes, 2 times;

[0107] Second soap boiling: Soap boiling at 90℃ for 8 minutes, 2 times;

[0108] Second cold water wash: wash in cold water for 5 minutes, once; get the washed fabric;

[0109] Setting: heat-setting the washed fabric at 110° C. to obtain the printed silk-cotton blended fabric.

[0110] The color fastness of the printed silk-cotton blended fabrics prepared in Examples 1-5 was tested, and the test results are shown in Table 1:

[0111] Table 1 Color fastness test results

[0112] Test items Test results Dry rubbing color fastness Level 4 Wet rubbing color fastness Level 4 Water fastness Level 4 Seawater fastness Level 4 Color fastness to (alkali) perspiration Level 4 Color fastness to sunlight Level 4 Color fastness to soap washing Level 4

[0113] Among them, the color fastness to soap washing is tested according to the national standard GB / T3921.4-1997. The dry / wet friction color fastness is implemented according to the national standard GB / 3920. The seawater immersion fastness is implemented according to the national standard AATCC106-2002. The water immersion fastness is in accordance with JIS (37±2)℃×4h. The color fastness to sunlight is implemented according to ISO105B02-1994. The color fastness to (alkali) perspiration is implemented according to the national standard ISO105-E04:2008.

[0114] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A production process for printed silk-cotton blended fabrics, characterized in that: The following steps are involved: Sizing: sizing the silk-cotton blended fabric with an active sizing material to obtain a sized fabric; the active sizing material is prepared by mixing urea, sodium bicarbonate, sodium alginate and soft water; the pH of the active sizing material is controlled at 8.0-9.0; Digital printing: the sizing fabric is subjected to inkjet printing with active ink and a digital printer to obtain printed fabric; the active ink contains active dyes, and the active groups of the active dyes are s-triazine type active groups and / or vinyl sulfone active groups; Steaming: steaming the printed fabric to obtain a steamed fabric; Washing: washing the steamed fabric to obtain washed fabric; Shaping: The washed fabric is subjected to heat drying and shaping to obtain the printed silk-cotton blended fabric.

2. The production process according to claim 1, characterized in that: In the sizing step, the active sizing material contains 8-15% urea, 2-4% sodium bicarbonate, 3-6% sodium alginate, and the balance is soft water.

3. The production process according to claim 1, characterized in that: In the sizing step, the active sizing material also includes anti-dyeing salt.

4. The production process according to claim 3, characterized in that: In the sizing step, 8-15% urea, 2-4% sodium bicarbonate, 1%-2.5% resist salt, 3-6% sodium alginate and soft water are mixed to obtain the active sizing material.

5. The production process according to claim 1, characterized in that In the digital printing step, the active group is a monochlorotriazine active group.

6. The production process according to claim 1, characterized in that: In the steaming step, the printed fabric is steamed with saturated steam at 102-107° C. for 5-12 minutes.

7. The production process according to claim 1, characterized in that: The washing step includes, in sequence, a first cold water wash, a first soap boil, a second soap boil and a second cold water wash.

8. The production process according to claim 7, characterized in that: The first cold water washing has a washing time of 8-12 minutes, and the washing is performed twice; the first soap boiling is performed at 40° C. for 8-10 minutes, and the washing is performed twice; the second soap boiling is performed at 90° C. for 8-10 minutes, and the washing is performed twice; the second cold water washing has a washing time of 5 minutes, and the washing is performed once.

9. The production process according to claim 1, characterized in that: In the shaping step, the heat drying and shaping temperature is 100-110°C.

10. A printed silk-cotton blended fabric, characterized in that: The printed silk-cotton blended fabric is produced by the production process described in any one of claims 1 to 9.

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