Three-dimensional jacquard knitted fabric and its manufacturing process

Abstract

The present invention relates to the field of fabrics, and in particular to a process for producing three-dimensional jacquard knitted fabrics, which is characterized by comprising the following steps: S1: selecting required raw materials according to demand, and then performing loose winding and cage loading; S2: pre-treating the cheese yarn to remove impurities such as surface oil and dust; S3: dyeing the yarn after pre-treatment, and performing color fixing after dyeing. The present invention processes and weaves the yarn through the steps of grey yarn → loose winding → cage loading → pre-treatment → dyeing → color fixing → soaping → cleaning → drying → winding → weaving → pre-setting → singeing → softening and anti-wrinkle finishing → low-temperature setting → pre-shrinking → finished product, so that the woven fabric is softened, and the blended yarn used for weaving has good texture, a fuller feel, and a strong visual effect, which can bring a good sense of freshness to the consumer market.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, in particular to a three-dimensional jacquard knitted fabric and a manufacturing process thereof. Background Art

[0002] As living standards continue to improve, consumers' demand for personalized clothing fabric design is also gradually increasing. Three-dimensional jacquard knitted fabrics are knitted fabrics with three-dimensional patterns. As a textile that combines aesthetics and practicality, three-dimensional jacquard knitted fabrics are used in various fields such as clothing and home decoration. However, due to the characteristics of the fabric structure, the texture of existing three-dimensional jacquard knitted fabrics is not soft, the hand feel is not plump, and the visual effect is not very strong, which fails to bring a new sense of freshness to the consumer market. Summary of the Invention

[0003] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and other drawings.

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a three-dimensional jacquard knitted fabric and a manufacturing process thereof to solve the existing problems.

[0005] To achieve the above object, the technical solution of the present invention is: a three-dimensional jacquard knitted fabric manufacturing process, comprising the following steps:

[0006] S1: Select the required raw materials according to the needs, and then carry out loose winding and cage loading;

[0007] S2: Pre-treat the cheese yarn to remove impurities such as oil and dust on the surface;

[0008] S3: dyeing the pre-treated yarn and fixing the color after dyeing;

[0009] S4: Washing the fixed yarn and then drying it;

[0010] S5: The cleaned and dried yarn is wound and then woven;

[0011] S6: After weaving is completed, finishing is carried out and the finished product is produced.

[0012] In some embodiments, the raw materials selected according to step S1 are: wool / viscose blended yarn: 48S, 52S, 48 / 2S, 52 / 2S, Z twist (mechanical stretch), cotton / Mo blended yarn: 40S, 52S, S twist, polyester / spandex core-spun yarn: 48S, 50S, Z twist (spandex stretch) and polyester filament: 100D, 150D.

[0013] In some embodiments, the raw material processing method selected according to step S2 is:

[0014] Pretreatment process prescription for wool / viscose blended yarn: add detergent: 1-1.5g / L, chelating agent: 1-1.5g / L, wool protectant: 1-2% (owf), stabilizer: 0.5-1g / L, soda ash: 1-1.5g / L, hydrogen peroxide: 1-2g / L, bath ratio: 1:10-1:12;

[0015] The pre-treatment process steps of wool / viscose blended yarn are as follows: place the yarn in a pool, add detergent, chelating agent, stabilizer and half of the soda ash, raise the temperature to 40°C at a rate of 2°C / min, then add wool protectant, hydrogen peroxide and the remaining half of the soda ash, then raise the temperature to 85-90°C at a rate of 1.5°C / min and keep warm for 50-70 minutes, finally wash with cold water and dry to complete the treatment;

[0016] Pretreatment process prescription of cotton / Mo blended yarn: Scouring enzyme: 3-5% (owf), scouring agent: 2-3g / L, hydrogen peroxide: 5-8g / L, penetrant: 1-1.5g / L, bath ratio: 1:20-1:25;

[0017] The pre-treatment process steps of cotton / Mo blended yarn are as follows: place the yarn in a tank, add scouring agent, scouring enzyme and hydrogen peroxide, then increase the temperature to 55-65℃ at a rate of 1-1.5℃ / min and keep it warm for 30-60 minutes, finally wash with cold water and dry to complete the treatment;

[0018] Pretreatment process prescription of polyester-spandex core-spun yarn and polyester filament: degreaser: 1-1.5g / L, detergent: 3-5g / L, caustic soda: 1.5-2g / L, bath ratio: 1:25-1:30;

[0019] The pre-treatment process steps of polyester-spandex core-spun yarn and polyester filament are as follows: place the yarn in a pool, add degreaser, detergent and caustic soda, then increase the temperature to 60-65℃ at a rate of 1.5-2℃ / min and keep it warm for 30-35 minutes, finally wash with cold water and dry to complete the treatment.

[0020] In some embodiments, the specific dyeing process according to step S3 is:

[0021] The winding density of the bobbins is: wool / viscose blended yarn: 0.3-0.35g / cm3, cotton / molybdenum blended yarn: 0.33-0.35g / cm3, polyester / spandex core-spun yarn: 0.38-0.4g / cm3 and polyester filament 0.35-0.4g / cm3;

[0022] The dyeing process formula and specific steps of wool / viscose blended yarn and cotton / Mo blended yarn are as follows:

[0023] Dyeing process formula: Lanasol reactive dye: 0.5-1% (owf), double reactive group reactive dye: 1-2g / L, penetration enhancer: 0.3-0.5g / L, sodium sulfate: 5-10%, ammonium sulfate: 3-5% (owf), double reactive group reactive dye: 3-4% (owf), NaCl: 60-70g / L, process optimizer: 3-4g / L, bath ratio: 1:10-1:12;

[0024] The dyeing process steps are as follows: first, place the yarn in a container, add a penetration enhancer and maintain the temperature at 50°C, add sodium sulfate and ammonium sulfate at the same time, then let it stand for 10 minutes, add Lanasol reactive dye, adjust the pH to 6-7, and let it stand for another 10 minutes, then adjust the temperature to 80-90°C at a rate of 1°C / min, then add the double-active base reactive dye and NaCl and keep it warm for 45-60 minutes, then reduce the temperature to 60-65°C at a rate of 3°C / min, add two-thirds of the total dosage of process optimizer and keep it warm for 30 minutes, then add the remaining one-third of the process optimizer and keep it warm for 30-40 minutes to complete the dyeing;

[0025] The dyeing process formula and specific steps of polyester-spandex core-spun yarn and polyester filament are as follows:

[0026] Dyeing process formula: high energy disperse dye: 2-3% (owf), penetration enhancer: 0.5-1g / L, dispersant: 1-2g / L, diffusion enhancer: 0.5-1g / L, acid buffer: 3-4g / L, bath ratio: 1:8-1:10;

[0027] The dyeing process steps are as follows: first place the yarn in a container, add a penetration enhancer, dispersant, diffusion enhancer and acid buffer, maintain the temperature at 40°C, soak for 5 minutes, add high-energy disperse dye, and then soak for another 5 minutes, then increase the temperature to 70°C at a rate of 2°C / min, and then increase the temperature to 120-130°C at a rate of 1.5°C / min and keep warm for 30-60 minutes to complete the dyeing.

[0028] In some embodiments, the specific cleaning formula and steps according to step S4 are:

[0029] Cleaning process formula and steps for wool / viscose blended yarn and cotton / molybdenum blended yarn:

[0030] Cleaning process formula: soaping agent: 0.5-1g / L, bath ratio: 1:10-1:12;

[0031] Cleaning steps: Place the dyed yarn in the cleaning tank, then raise the temperature to 80°C, add soaping agent to make the pH value 8-8.5, then keep warm for 20-25 minutes and rinse with cold water to complete the cleaning;

[0032] Cleaning process formula and steps for polyester-spandex core-spun yarn and polyester filament:

[0033] Cleaning process formula: sodium hydroxide: 3-5mL / L, hydrosulfite: 4-5g / L, sodium carbonate: 1.5-3g / L, detergent: 2.5-3g / L, bath ratio: 1:20-1:25;

[0034] Cleaning steps: Place the dyed yarn in the cleaning tank and raise the temperature to 80-90°C. Then add sodium hydroxide, hydrosulfite, sodium carbonate and detergent and keep warm for 30-35 minutes. Rinse with cold water to complete the cleaning.

[0035] In some embodiments, the specific steps according to step S6 are: grey cloth → pre-setting (temperature 170-180°C, speed 20-25 m / min) → singeing (double jet burner, one front and one back, main burner temperature 1100-1200°C, speed 95-100 m / min) → softening and anti-wrinkle finishing → wet setting (temperature 150-170°C, speed 25-30 m / min, overfeed 10-15%) → pre-shrinkage → finished fabric.

[0036] In some embodiments, the formula used in the softening and anti-wrinkle finishing process is: thickening softener: 25-30g / L, anti-wrinkle finishing agent: 40-50g / L, padding method: one dip and one padding, and liquid padding rate: 70-80%.

[0037] The present invention also provides a three-dimensional jacquard knitted fabric produced by the above-mentioned production process, including a fabric body, which includes a jacquard layer, a wear-resistant layer, a thermal insulation layer and a skin-friendly layer from top to bottom. The wear-resistant layer is formed by weaving a first yarn with a rib structure. The first yarn includes a second yarn. The outer wall of the second yarn is provided with a third yarn and a fourth yarn. The third yarn and the fourth yarn are cross-wound on the second yarn. The second yarn, the third yarn and the fourth yarn are respectively polyester filament, wool / viscose blended yarn and cotton / Mo blended yarn.

[0038] In some embodiments, the insulation layer includes a fifth yarn, which is flat and has grooves on both sides. The grooves are respectively provided with a sixth yarn and a seventh yarn to form a new yarn, which is woven with the new yarn in a mesh structure. The fifth yarn, the sixth yarn and the seventh yarn are polyester filament, wool / viscose blended yarn and cotton / Mo blended yarn, respectively.

[0039] In some embodiments, the skin-friendly layer is formed by knitting cotton / moly blended yarn through an interlock weave.

[0040] By adopting the above technical solution, the beneficial effects of the present invention are as follows: the present invention processes and weaves the yarn through the steps of grey yarn → loose winding → cage loading → pre-treatment → dyeing → color fixing → soaping → cleaning → drying → winding → weaving → pre-setting → singeing → softening and anti-wrinkle finishing → low-temperature setting → pre-shrinkage → finished product, so that the woven fabric is softened, and the use of mixed yarn for weaving makes the fabric have good texture, a fuller feel, and a strong visual effect, which can bring a good sense of freshness to the consumer market.

[0041] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0042] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment is described with reference to the various figures and drawings.

[0043] In order to make the above and other objects, features and advantages of the present invention more obvious and easy to understand, one or more preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention but do not constitute a limitation of the present invention.

[0045] In the drawings, like components are given like reference numerals, and the drawings are schematic and not necessarily drawn to scale.

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying any creative work.

[0047] Figure 1 Schematic diagram of the structure of the fabric body of some embodiments of the present invention;

[0048] Figure 2 This is a schematic diagram of the structure of some embodiments of the present invention after the first yarn is wound;

[0049] Figure 3 Schematic diagram of the structure of the fifth yarn, the sixth yarn and the seventh yarn in some embodiments of the present invention. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not intended to limit the present invention.

[0051] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] In the present invention, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, removable connections, or integration; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interactions between two components. However, the term "direct connection" indicates that the two connected entities are not connected through a transitional structure, but are connected solely through a connecting structure to form a single entity. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0054] Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0055] The present invention provides a process for producing a three-dimensional jacquard knitted fabric, comprising the following steps:

[0056] S1: Select the required raw materials according to the needs, and then carry out loose winding and cage loading;

[0057] S2: Pre-treat the cheese yarn to remove impurities such as oil and dust on the surface;

[0058] S3: dyeing the pre-treated yarn and fixing the color after dyeing;

[0059] S4: Washing the fixed yarn and then drying it;

[0060] S5: The cleaned and dried yarn is wound and then woven;

[0061] S6: After weaving is completed, finishing is carried out and the finished product is produced.

[0062] The yarn is processed and woven through the steps of grey yarn → loose winding → cage loading → pre-treatment → dyeing → color fixing → soap washing → cleaning → drying → winding → weaving → pre-setting → singeing → softening and anti-wrinkle finishing → low-temperature setting → pre-shrinkage → finished product, so that the woven fabric becomes softer, and the use of blended yarns makes the fabric have good texture, fuller feel, and strong visual effect, which can bring a good sense of freshness to the consumer market.

[0063] According to some embodiments of the present invention, optionally, the raw materials selected according to step S1 are: wool / viscose blended yarn: 48S, 52S, 48 / 2S, 52 / 2S, Z twist (mechanical stretch), cotton / Mo blended yarn: 40S, 52S, S twist, polyester / spandex core-spun yarn: 48S, 50S, Z twist (spandex stretch) and polyester filament: 100D, 150D.

[0064] According to some embodiments of the present invention, optionally, the raw material processing method selected in step S2 is:

[0065] Pretreatment process prescription for wool / viscose blended yarn: add detergent: 1-1.5g / L, chelating agent: 1-1.5g / L, wool protectant: 1-2% (owf), stabilizer: 0.5-1g / L, soda ash: 1-1.5g / L, hydrogen peroxide: 1-2g / L, bath ratio: 1:10-1:12;

[0066] The pre-treatment process steps of wool / viscose blended yarn are as follows: place the yarn in a pool, add detergent, chelating agent, stabilizer and half of the soda ash, raise the temperature to 40°C at a rate of 2°C / min, then add wool protectant, hydrogen peroxide and the remaining half of the soda ash, then raise the temperature to 85-90°C at a rate of 1.5°C / min and keep warm for 50-70 minutes, finally wash with cold water and dry to complete the treatment;

[0067] Pretreatment process prescription of cotton / Mo blended yarn: Scouring enzyme: 3-5% (owf), scouring agent: 2-3g / L, hydrogen peroxide: 5-8g / L, penetrant: 1-1.5g / L, bath ratio: 1:20-1:25;

[0068] The pre-treatment process steps of cotton / Mo blended yarn are as follows: place the yarn in a tank, add scouring agent, scouring enzyme and hydrogen peroxide, then increase the temperature to 55-65℃ at a rate of 1-1.5℃ / min and keep it warm for 30-60 minutes, finally wash with cold water and dry to complete the treatment;

[0069] Pretreatment process prescription of polyester-spandex core-spun yarn and polyester filament: degreaser: 1-1.5g / L, detergent: 3-5g / L, caustic soda: 1.5-2g / L, bath ratio: 1:25-1:30;

[0070] The pre-treatment process steps of polyester-spandex core-spun yarn and polyester filament are as follows: place the yarn in a pool, add degreaser, detergent and caustic soda, then increase the temperature to 60-65℃ at a rate of 1.5-2℃ / min and keep it warm for 30-35 minutes, finally wash with cold water and dry to complete the treatment.

[0071] In this way, for blended yarns with different composition ratios and using multiple fibers as raw materials, it is necessary to design targeted pre-treatment processes. The wool / viscose blended yarn used is mainly composed of viscose fiber, and the pre-treatment focuses on oil removal. Cotton fiber accounts for a large proportion of cotton / moly blended yarn. In addition to removing oil stains, it is also necessary to pay attention to how to effectively remove impurities in natural fibers such as cottonseed shells and wax. Then, the pre-treatment of polyester-spandex core-spun yarn and polyester filament is mainly to remove oil and dust on the yarn surface, so different formulas are needed for treatment.

[0072] According to some embodiments of the present invention, optionally, the specific dyeing process according to step S3 is:

[0073] The winding density of the bobbins is: wool / viscose blended yarn: 0.3-0.35g / cm3, cotton / molybdenum blended yarn: 0.33-0.35g / cm3, polyester / spandex core-spun yarn: 0.38-0.4g / cm3 and polyester filament 0.35-0.4g / cm3;

[0074] The dyeing process formula and specific steps of wool / viscose blended yarn and cotton / Mo blended yarn are as follows:

[0075] Dyeing process formula: Lanasol reactive dye: 0.5-1% (owf), double reactive group reactive dye: 1-2g / L, penetration enhancer: 0.3-0.5g / L, sodium sulfate: 5-10%, ammonium sulfate: 3-5% (owf), double reactive group reactive dye: 3-4% (owf), NaCl: 60-70g / L, process optimizer: 3-4g / L, bath ratio: 1:10-1:12;

[0076] The dyeing process steps are as follows: first, place the yarn in a container, add a penetration enhancer and maintain the temperature at 50°C, add sodium sulfate and ammonium sulfate at the same time, then let it stand for 10 minutes, add Lanasol reactive dye, adjust the pH to 6-7, and let it stand for another 10 minutes, then adjust the temperature to 80-90°C at a rate of 1°C / min, then add the double-active base reactive dye and NaCl and keep it warm for 45-60 minutes, then reduce the temperature to 60-65°C at a rate of 3°C / min, add two-thirds of the total dosage of process optimizer and keep it warm for 30 minutes, then add the remaining one-third of the process optimizer and keep it warm for 30-40 minutes to complete the dyeing;

[0077] The dyeing process formula and specific steps of polyester-spandex core-spun yarn and polyester filament are as follows:

[0078] Dyeing process formula: high energy disperse dye: 2-3% (owf), penetration enhancer: 0.5-1g / L, dispersant: 1-2g / L, diffusion enhancer: 0.5-1g / L, acid buffer: 3-4g / L, bath ratio: 1:8-1:10;

[0079] The dyeing process steps are as follows: first place the yarn in a container, add a penetration enhancer, dispersant, diffusion enhancer and acid buffer, maintain the temperature at 40°C, soak for 5 minutes, add high-energy disperse dye, and then soak for another 5 minutes, then increase the temperature to 70°C at a rate of 2°C / min, and then increase the temperature to 120-130°C at a rate of 1.5°C / min and keep warm for 30-60 minutes to complete the dyeing.

[0080] In this way, reactive dyes with good compatibility are selected to study the efficient dyeing of wool / viscose blended yarn and cotton / molybdenum blended yarn in the same bath. Polyester-spandex core-spun yarn and polyester filament are dyed with disperse dyes at high temperature and high pressure in another bath. Since the dyeing of cheese yarn only relies on the flow of dye solution to achieve dyeing, and the extrusion between cheese yarns and the shrinkage and tightening of yarns during high temperature treatment make it difficult for the dye solution to penetrate evenly. At the same time, the different layers and different positions of cheese yarns in the dye vat will also affect the dyeing uniformity. In this way, the above problems can be addressed by reasonably designing the winding density of the cheese yarns of each raw material and reserving the yarn shrinkage rate, increasing the amount of disperse dye and improving the flow rate of dye solution, and bidirectional circulation of dye solution, so as to reduce dye aggregation and thus improve the leveling and same-color properties.

[0081] According to some embodiments of the present invention, optionally, the specific cleaning formula and steps according to step S4 are:

[0082] Cleaning process formula and steps for wool / viscose blended yarn and cotton / molybdenum blended yarn:

[0083] Cleaning process formula: soaping agent: 0.5-1g / L, bath ratio: 1:10-1:12;

[0084] Cleaning steps: Place the dyed yarn in the cleaning tank, then raise the temperature to 80°C, add soaping agent to make the pH value 8-8.5, then keep warm for 20-25 minutes and rinse with cold water to complete the cleaning;

[0085] Cleaning process formula and steps for polyester-spandex core-spun yarn and polyester filament:

[0086] Cleaning process formula: sodium hydroxide: 3-5mL / L, hydrosulfite: 4-5g / L, sodium carbonate: 1.5-3g / L, detergent: 2.5-3g / L, bath ratio: 1:20-1:25;

[0087] Cleaning steps: Place the dyed yarn in the cleaning tank and raise the temperature to 80-90°C. Then add sodium hydroxide, hydrosulfite, sodium carbonate and detergent and keep warm for 30-35 minutes. Rinse with cold water to complete the cleaning.

[0088] According to some embodiments of the present invention, the specific steps of step S6 are optionally as follows: grey fabric → pre-setting (temperature 170-180°C, speed 20-25 m / min) → singeing (double jet burners, one front and one back, main burner temperature 1100-1200°C, speed 95-100 m / min) → softening and wrinkle-resistant finishing → wet setting (temperature 150-170°C, speed 25-30 m / min, overfeed 10-15%) → pre-shrinking → finished fabric. The three-dimensional jacquard knitted fabric produced in this way is used for outerwear, which has high requirements for wrinkle and abrasion resistance. Therefore, the post-finishing process focuses on the fabric's wrinkle and pilling resistance, ensuring a stable coil structure, and reducing shrinkage.

[0089] According to some embodiments of the present invention, optionally, the formula used in the softening and anti-wrinkle finishing process is: thickening softener: 25-30g / L, anti-wrinkle finishing agent: 40-50g / L, padding method: one dip and one padding, and liquid padding rate: 70-80%.

[0090] Reference Figure 1-3 , Figure 1 Schematic diagram of the structure of the fabric body of some embodiments of the present invention; Figure 2 This is a schematic diagram of the structure of some embodiments of the present invention after the first yarn is wound; Figure 3 Schematic diagram of the structure of the fifth yarn, the sixth yarn and the seventh yarn in some embodiments of the present invention.

[0091] The present invention also provides a three-dimensional jacquard knitted fabric produced by the above-mentioned production process, including a fabric body 1, which includes a jacquard layer 2, a wear-resistant layer 3, a thermal insulation layer 4 and a skin-friendly layer 5 from top to bottom. The wear-resistant layer 3 is formed by weaving a first yarn 31 with a rib structure. The first yarn 31 includes a second yarn 32. The outer wall of the second yarn 32 is provided with a third yarn 33 and a fourth yarn 34. The third yarn 33 and the fourth yarn 34 are cross-wound on the second yarn 32. The second yarn 32, the third yarn 33 and the fourth yarn 34 are respectively polyester filament, wool / viscose blended yarn and cotton / molybdenum blended yarn.

[0092] By entwining multiple yarns, the wear-resistant layer 3 will be more wear-resistant after weaving, and the wear-resistant layer 3 will have good moisture absorption capacity through the selection of yarns, which can increase the moisture absorption of the fabric. At the same time, the jacquard layer 2 woven with wool / viscose blended yarn, cotton / molybdenum blended yarn and polyester-spandex core-spun yarn processed by the above-mentioned process will be smoother. The setting of the thermal insulation layer 4 is conducive to the air staying inside, thereby playing a role in heat preservation. The setting of the skin-friendly layer 5 ensures that the side of the fabric that fits the skin is softer and more comfortable.

[0093] The basic parameters of the fabric body 1 can be the following values:

[0094] Grey cloth weight: 380-400g / m2;

[0095] Grey cloth width: 175-180cm;

[0096] Horizontal density: 75-85 vertical lines / 5cm;

[0097] Longitudinal density: 100-110 rows / 5cm;

[0098] Thickness: 2-2.5mm.

[0099] According to some embodiments of the present invention, the thermal insulation layer 5 optionally includes a fifth yarn 51, which is flat and has grooves 52 on both sides. The grooves 52 are respectively provided with a sixth yarn 53 and a seventh yarn 54 to form a new yarn. The new yarn is woven into a mesh structure. The fifth yarn 51, the sixth yarn 53, and the seventh yarn 54 are respectively polyester filament, wool / viscose blended yarn, and cotton / Mo blended yarn. In this way, by combining multiple yarns, a gap can be left between two adjacent layers of the thermal insulation layer 5 during weaving through the sixth yarn 53 and the seventh yarn 54, which helps air stay inside the fabric and ensures the thermal insulation performance of the fabric.

[0100] According to some embodiments of the present invention, the skin-friendly layer 5 is optionally woven from cotton / Mo blended yarn through an interlock weave, which provides good elasticity inside the fabric and overall comfort.

[0101] The manufacturing process of the present invention can also use three blended colored yarns with different properties to weave a three-dimensional jacquard fabric on a double-sided jacquard loom. Based on the weft-knitted colored weave, cotton / Mo blended yarn is woven on the front side, and cotton / Mo blended and polyester-spandex core-spun yarn are arranged in an orderly manner on the back side of the fabric, one every other, to form a sesame-shaped ground weave. Wool / viscose blended yarn is inserted along the weft direction and sandwiched between the interlayer gaps on the front and back sides of the fabric, creating a thick air layer effect and enhancing the fabric's warmth retention. Because the wool / viscose blended yarn in the weft insertion has mechanical elasticity, combined with the polyester-spandex core-spun yarn in the ground yarn, the pattern edge is tightened, causing the pattern to bulge towards the side away from the skin and revealing part of the ground yarn color, further enhancing the concave and convex three-dimensional effect of the air layer jacquard, thereby producing the desired fabric effect.

[0102] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent substitutions of such features understood by those skilled in the relevant art. It should also be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting.

[0103] The "embodiment" mentioned in the specification means that a particular feature or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrase or "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0104] Furthermore, the described features or characteristics may be combined in any other suitable manner into one or more embodiments. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will appreciate that the present invention may be implemented without one or more of the above specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A process for producing a three-dimensional jacquard knitted fabric, characterized in that: The following steps are involved: S1: Select the required raw materials according to the needs, and then carry out loose winding and cage loading; S2: Pre-treating the cheese yarn to remove surface oil, dust and other impurities; S3: dyeing the pre-treated yarn and fixing the color after dyeing; S4: Washing the fixed yarn and then drying it; S5: The cleaned and dried yarn is wound and then woven; S6: After weaving is completed, finishing is carried out and the finished product is produced; The raw materials selected according to step S1 are: wool / viscose blended yarn: 48S, 52S, 48 / 2S, 52 / 2S, Z-twisted cotton / Mo blended yarn: 40S, 52S, S-twisted polyester / spandex core-spun yarn: 48S, 50S, Z-twisted polyester filament: 100D, 150D; The specific dyeing process according to step S3 is as follows: The winding density of the bobbins is: wool / viscose blended yarn: 0.3-0.35g / cm3, cotton / molybdenum blended yarn: 0.33-0.35g / cm3, polyester / spandex core-spun yarn: 0.38-0.4g / cm3 and polyester filament 0.35-0.4g / cm3; The dyeing process formula and specific steps of wool / viscose blended yarn and cotton / Mo blended yarn are as follows: Dyeing process formula: Lanasol reactive dye: 0.5-1% (owf), double reactive group reactive dye: 1-2g / L, penetration enhancer: 0.3-0.5g / L, sodium sulfate: 5-10%, ammonium sulfate: 3-5% (owf), double reactive group reactive dye: 3-4% (owf), NaCl: 60-70g / L, process optimizer: 3-4g / L, bath ratio: 1:10-1:12; The dyeing process steps are as follows: first, place the yarn in a container, add a penetration enhancer and maintain the temperature at 50°C, add sodium sulfate and ammonium sulfate at the same time, then let it stand for 10 minutes, add Lanasol reactive dye, adjust the pH to 6-7, and let it stand for another 10 minutes, then adjust the temperature to 80-90°C at a rate of 1°C / min, then add the double-active base reactive dye and NaCl and keep it warm for 45-60 minutes, then reduce the temperature to 60-65°C at a rate of 3°C / min, add two-thirds of the total dosage of process optimizer and keep it warm for 30 minutes, then add the remaining one-third of the process optimizer and keep it warm for 30-40 minutes to complete the dyeing; The dyeing process formula and specific steps of polyester-spandex core-spun yarn and polyester filament are as follows: Dyeing process formula: high energy disperse dye: 2-3% (owf), penetration enhancer: 0.5-1g / L, dispersant: 1-2g / L, diffusion enhancer: 0.5-1g / L, acid buffer: 3-4g / L, bath ratio: 1:8-1:10; The dyeing process steps are as follows: first place the yarn in a container, add a penetration enhancer, dispersant, diffusion enhancer and acid buffer, maintain the temperature at 40°C, soak for 5 minutes, add high-energy disperse dye, and then soak for another 5 minutes, then increase the temperature to 70°C at a rate of 2°C / min, and then increase the temperature to 120-130°C at a rate of 1.5°C / min and keep warm for 30-60 minutes to complete the dyeing.

2. The process for producing a three-dimensional jacquard knitted fabric according to claim 1, wherein: The raw material processing method selected according to step S2 is: Pretreatment process prescription for wool / viscose blended yarn: add detergent: 1-1.5g / L, chelating agent: 1-1.5g / L, wool protectant: 1-2% (owf), stabilizer: 0.5-1g / L, soda ash: 1-1.5g / L, hydrogen peroxide: 1-2g / L, bath ratio: 1:10-1:12; The pre-treatment process steps of wool / viscose blended yarn are as follows: place the yarn in a pool, add detergent, chelating agent, stabilizer and half of the soda ash, raise the temperature to 40°C at a rate of 2°C / min, then add wool protectant, hydrogen peroxide and the remaining half of the soda ash, then raise the temperature to 85-90°C at a rate of 1.5°C / min and keep warm for 50-70 minutes, finally wash with cold water and dry to complete the treatment; Pretreatment process prescription of cotton / Mo blended yarn: Scouring enzyme: 3-5% (owf), scouring agent: 2-3g / L, hydrogen peroxide: 5-8g / L, penetrant: 1-1.5g / L, bath ratio: 1:20-1:25; The pre-treatment process steps of cotton / Mo blended yarn are as follows: place the yarn in a tank, add scouring agent, scouring enzyme and hydrogen peroxide, then increase the temperature to 55-65℃ at a rate of 1-1.5℃ / min and keep it warm for 30-60 minutes, finally wash with cold water and dry to complete the treatment; Pretreatment process prescription of polyester-spandex core-spun yarn and polyester filament: degreaser: 1-1.5g / L, detergent: 3-5g / L, caustic soda: 1.5-2g / L, bath ratio: 1:25-1:30; The pre-treatment process steps of polyester-spandex core-spun yarn and polyester filament are as follows: place the yarn in a pool, add degreaser, detergent and caustic soda, then increase the temperature to 60-65℃ at a rate of 1.5-2℃ / min and keep it warm for 30-35 minutes, finally wash with cold water and dry to complete the treatment.

3. The process for producing a three-dimensional jacquard knitted fabric according to any one of claims 1 or 2, characterized in that: The specific cleaning formula and steps according to step S4 are as follows: Cleaning process formula and steps for wool / viscose blended yarn and cotton / molybdenum blended yarn: Cleaning process formula: soaping agent: 0.5-1g / L, bath ratio: 1:10-1:12; Cleaning steps: Place the dyed yarn in the cleaning tank, then raise the temperature to 80°C, add soaping agent to make the pH value 8-8.5, then keep warm for 20-25 minutes and rinse with cold water to complete the cleaning; Cleaning process formula and steps for polyester-spandex core-spun yarn and polyester filament: Cleaning process formula: Sodium hydroxide: 3-5mL / L, hydrosulfite: 4-5g / L, sodium carbonate: 1.5-3g / L, detergent: 2.5-3g / L, bath ratio: 1:20-1:25; Cleaning steps: Place the dyed yarn in the cleaning tank and raise the temperature to 80-90°C. Then add sodium hydroxide, hydrosulfite, sodium carbonate and detergent and keep warm for 30-35 minutes. Rinse with cold water to complete the cleaning.

4. The process for producing a three-dimensional jacquard knitted fabric according to claim 1, wherein: The specific steps according to step S6 are: grey fabric → pre-setting → singeing → softening and anti-wrinkle finishing → wet setting → pre-shrinking → finished fabric; Among them, the pre-setting temperature is 170-180℃, the machine speed is 20-25m / min; the singeing double-jet burner, one positive and one negative, the main burner temperature is 1100-1200℃, the machine speed is 95-100m / min; the wet setting temperature is 150-170℃, the machine speed is 25-30m / min, and the overfeed is 10-15%.

5. The process for producing a three-dimensional jacquard knitted fabric according to claim 4, characterized in that: The formula used in this softening and anti-wrinkle finishing process is: thickening softener: 25-30g / L, anti-wrinkle finishing agent: 40-50g / L, padding method: one dip and one padding, padding rate: 70-80%.

6. A three-dimensional jacquard knitted fabric produced by the production process according to any one of claims 1 to 5, characterized in that: include: The fabric body comprises, from top to bottom, a jacquard layer, a wear-resistant layer, a heat-insulating layer, and a skin-friendly layer. The wear-resistant layer is formed by weaving a first yarn in a rib structure. The first yarn includes a second yarn. A third yarn and a fourth yarn are arranged on the outer wall of the second yarn. The third yarn and the fourth yarn are cross-wound around the second yarn. The second yarn, the third yarn, and the fourth yarn are respectively polyester filament, wool / viscose blended yarn, and cotton / Mo blended yarn. The thermal insulation layer includes a fifth yarn, which is flat and has grooves on both sides. The grooves are respectively provided with a sixth yarn and a seventh yarn to form a new yarn, which is woven with the new yarn in a mesh structure. The fifth yarn, the sixth yarn and the seventh yarn are respectively polyester filament, wool / viscose blended yarn and cotton / Mo blended yarn.

7. The three-dimensional jacquard knitted fabric according to claim 6, characterized in that: The skin-friendly layer is formed by knitting cotton / Mo blended yarn through an interlock rib structure.

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