Preparation method of double-layer functional jacquard fabric

Abstract

The invention belongs to the technical field of textiles, and provides a preparation method of a double-layer functional jacquard fabric. The double-layer functional jacquard fabric comprises a separation area and a connection area, the weave structure of the connecting area is a jacquard weave structure; the connecting area is formed by interweaving the surface-layer fabric and the inner-layer fabric; the preparation method comprises the following steps: weaving warp yarns and weft yarns serving as raw materials by adopting a jacquard loom, a dobby loom and a shuttleless loom to obtain gray fabric; warp yarns of the surface fabric are conveyed through a heald frame and a jacquard head of the jacquard loom; and the warp yarns of the inner-layer fabric are conveyed through a heald frame. According to the preparation method provided by the invention, the heald frame and the jacquard head are combined for warp conveying, so that the number of bearing needles of the jacquard head is reduced, and the warp end breakage rate is reduced; the surface layer fabric and the inner layer fabric are connected together through the jacquard weave structure, combination is firm, and interlayer separation and edge warping are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, and particularly relates to a preparation method of a double-layer functional jacquard fabric. BACKGROUND

[0002] With the increasing demand for aesthetics and functionality in the textile market, large jacquard fabrics are widely used in the fields of home textiles and clothing due to their rich patterns and complex structures. However, the existing large jacquard fabrics generally have the following technical problems in the weaving process: first, in order to meet the needs of pattern changes and complex organizational structures, full-width jacquard heads are often used to control the warp yarns, which leads to an excessive number of needles carried by the jacquard heads, large equipment investment, complex maintenance, and problems such as warp yarn breakage and low efficiency during high-speed operation.

[0003] In addition, the existing double-layer jacquard fabric structure is mostly a simple superposition of upper and lower organizations, and there is a lack of effective connection between the organizations, which can easily cause problems such as interlayer separation and edge curling during use, affecting the stability and appearance quality of the fabric. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a preparation method of a double-layer functional jacquard fabric. The preparation method provided by the present application uses a combination of harness frames and jacquard heads to transport warp yarns, reducing the number of needles carried by the jacquard heads and lowering the warp yarn breakage rate. The surface fabric and the inner fabric are connected together through the jacquard organizational structure, which is firmly combined and avoids interlayer separation and edge curling.

[0005] In order to achieve the above-mentioned purpose of the application, the present application provides the following technical solutions: The present application provides a preparation method of a double-layer functional jacquard fabric, which includes a surface fabric and an inner fabric, and comprises the following steps: Using warp yarns and weft yarns as raw materials, a jacquard loom, a dobby loom, and a shuttleless loom are used for weaving to obtain a gray fabric; The gray fabric is sequentially subjected to dyeing, heat setting, waterproof finishing, and drying to obtain the double-layer functional jacquard fabric; The warp yarns of the surface fabric are partially transported by harness frames and partially transported by jacquard heads The warp yarns of the inner fabric are all transported by harness frames; The weft yarns of the surface fabric and the inner fabric are both transported by shuttleless looms; The double-layer functional jacquard fabric includes a separation area and a connection area; The organizational structure of the connection area of the double-layer functional jacquard fabric is a jacquard organizational structure; The connection area of the double-layer functional jacquard fabric is the interweaving of the surface fabric and the inner fabric.

[0006] Preferably, the warp yarns of the double-layer functional jacquard fabric are delivered to the heald frames and the jacquard heads by single warp beam or double warp beam.

[0007] Preferably, the separation area of the double-layer functional jacquard fabric comprises a first shed and a second shed; in the first shed, the surface layer warp yarns delivered by the jacquard heads and the surface layer warp yarns delivered by the heald frames are interwoven with the surface layer weft yarns to form surface layer weave; in the second shed, the surface layer warp yarns delivered by the jacquard heads and the surface layer warp yarns delivered by the heald frames are all raised, while the heald frame delivered surface layer warp yarns are interwoven with the inner layer weft yarns to form inner layer weave according to the weave chart, and the first shed and the second shed repeat this weave movement.

[0008] Preferably, the connection area of the double-layer functional jacquard fabric comprises a first shed and a third shed; in the first shed, the surface layer warp yarns delivered by the jacquard heads and the surface layer warp yarns delivered by the heald frames are interwoven with the surface layer weft yarns to form surface layer weave; in the third shed, the surface layer warp yarns delivered by the heald frames are normally raised, while the surface layer warp yarns delivered by the jacquard heads sink to the inner layer weave position to form interweaving points with the inner layer weft yarns, so that the surface layer weave and the inner layer weave are connected through the warp movement; the first shed and the third shed repeat this weave movement.

[0009] Preferably, the warp yarns of the double-layer functional jacquard fabric are one or more combined yarns selected from the group consisting of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose and silk. The weft yarns of the double-layer functional jacquard fabric are one or more combined yarns selected from the group consisting of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose, silk and nylon.

[0010] Preferably, the warp density of the surface layer fabric and the inner layer fabric is independently 30-100 per cm. Preferably, the weft density of the surface layer fabric and the inner layer fabric is independently 30-100 per cm.

[0011] Preferably, the agent used in the waterproof finishing is a waterproof finishing liquid, and the waterproof finishing liquid comprises a waterproof agent and a crosslinking agent; the waterproof agent is RSY waterproof agent, C6 three-proofing finishing agent or R3 waterproof agent; the crosslinking agent is FM-1 crosslinking agent.

[0012] Preferably, in the waterproof finishing liquid, the concentration of the waterproof agent is 40-100 g / L, and the concentration of the crosslinking agent is 6-14 g / L.

[0013] Preferably, the waterproof finishing method is one dip and one roll of the waterproof finishing liquid, and the roll liquid rate is 70%.

[0014] Preferably, the drying comprises pre-drying and baking in sequence, the pre-drying is at a temperature of 100-130 DEG C for 10-20 min; the baking is at a temperature of 150-175 DEG C for 1-5 min.

[0015] The application provides a preparation method of a double-layer functional jacquard fabric.

[0016] Compared with the prior art, the application has the following remarkable advantages: 1. The preparation method of the application controls the warp yarns by combining the heald frame and the jacquard head, reduces the load of the jacquard head, improves the structural stability, and significantly reduces the breakage rate; 2. The surface fabric and the inner fabric are connected together through the jacquard structure, are combined firmly, and the separation and edge lifting between the layers are avoided; 3. Through the structural innovative double-layer fabric design, the organization of the inner fabric and the surface fabric is independent or coexists in adhesion, and excellent three-dimensionality and pattern level are achieved; 4. The production efficiency is high, the material adaptability is wide, a variety of differentiated fiber combinations can be adapted, and the application has wide industrial popularization value.

[0017] Further, when the surface warp yarns and the inner warp yarns are consistent in type, the warp yarns are all transported to the heald frame and the jacquard head by a single warp beam, the single warp beam configuration structure is simple, the traditional double warp beam process can be replaced, efficient feeding and weaving are realized, and the equipment cost is saved.

[0018] Further, the optimization of the waterproof finishing liquid further improves the waterproofness and washability of the double-layer functional jacquard fabric, and meets the high-standard demand of functional textiles.

[0019] In summary, the application provides the preparation method, which not only has structural innovation and mature process, but also has excellent function, overcomes the technical problems of the traditional large jacquard fabric, such as single structure, low efficiency and performance deficiency, and has remarkable practical value and popularization potential. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a jacquard fabric organization chart. DETAILED DESCRIPTION

[0021] The application provides a preparation method of a double-layer functional jacquard fabric, the double-layer functional jacquard fabric comprises a surface fabric and an inner fabric, and comprises the following steps: Warp yarns and weft yarns are used as raw materials, a jacquard loom and a dobby loom are used for weaving, and a grey fabric is obtained; The grey fabric is sequentially subjected to dyeing, heat setting, waterproof finishing and drying, and the double-layer functional jacquard fabric is obtained; The weaving mode is plain weaving. The warp yarns of the surface fabric are partly conveyed by the harness and partly conveyed by the jacquard head The warp yarns of the surface fabric are partly conveyed by the harness and partly conveyed by the jacquard head The weft yarns of the surface fabric and the lining fabric are both conveyed by the shuttleless loom The double-layer functional jacquard fabric comprises a separation area and a connection area The connection area of the double-layer functional jacquard fabric has a jacquard weave structure The connection area of the double-layer functional jacquard fabric is interwoven with the surface fabric and the lining fabric

[0022] In the present application, the double-layer functional jacquard fabric comprises a separation area and a connection area. In the present application, the connection area of the double-layer functional jacquard fabric has a jacquard weave structure; the connection area of the double-layer functional jacquard fabric is interwoven with the surface fabric and the lining fabric. In the present application, the connection area of the double-layer functional jacquard fabric has a jacquard weave structure, so that a three-dimensional jacquard style is formed on the cloth surface, and the decorative property and visual impact are improved. Figure 1 is a jacquard fabric weave chart.

[0023] In the present application, the double-layer functional jacquard fabric comprises a surface fabric and a lining fabric.

[0024] The present application uses warp yarns and weft yarns as raw materials, adopts a jacquard loom, a dobby loom and a shuttleless loom to weave, and obtains a grey cloth.

[0025] In the present application, the shuttleless loom is preferably a water jet loom, a rapier loom or an air jet loom. In the present application, the weft yarns of the surface fabric and the lining fabric are both conveyed by the shuttleless loom.

[0026] In the present application, the warp yarns of the surface fabric are partly conveyed by the harness and partly conveyed by the jacquard head. In the present application, the proportion of the warp yarns conveyed by the harness and the warp yarns conveyed by the jacquard head is preferably 1:1; the warp yarns are conveyed by the harness and the jacquard head, the number of needles of the jacquard head is small, the broken ends are reduced, and the production efficiency is greatly improved.

[0027] In the present application, the warp yarns of the lining fabric are all conveyed by the harness.

[0028] In the present application, the warp yarns of the double-layer functional jacquard fabric are preferably delivered to the harness frame and the jacquard head by a single warp beam or a double warp beam; specifically, when the warp yarns of the surface fabric and the lining fabric of the double-layer functional jacquard fabric are the same, they are preferably controlled by a single warp beam; when the warp yarns of the surface fabric and the lining fabric of the double-layer functional jacquard fabric are different, they are preferably controlled by a double warp beam. In the present application, when the types of warp yarns are consistent, a single warp beam is used instead of a double warp beam. Specifically, the two layers of warp yarns that were originally supplied by the upper warp beam and the lower warp beam are set on a single warp beam, and after precise tension adjustment, the weaving effect equivalent to that of the double warp beam system can be achieved, while reducing equipment investment, reducing equipment operation complexity, and improving raw material loading capacity.

[0029] In the present application, the separation area of the double-layer functional jacquard fabric preferably includes a first shed and a second shed; the first shed is formed by the interweaving of the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the harness frame with the surface layer weft yarns; the second shed: the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the harness frame are all raised, while the lining layer warp yarns delivered by the harness frame are interwoven with the lining layer weft yarns to form the lining layer fabric, and the first shed and the second shed repeat this organization movement.

[0030] In the present application, the connection area of the double-layer functional jacquard fabric preferably includes a first shed and a third shed; the first shed: the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the harness frame are interwoven with the surface layer weft yarns to form the surface layer fabric; the third shed: the surface layer warp yarns delivered by the harness frame are normally raised, at this time, according to the needs of the organization chart, the surface layer warp yarns delivered by the jacquard head sink to the lining layer organization position, and form an interweaving point with the lining layer weft yarns, so that the surface layer fabric and the lining layer fabric are connected through the movement of the warp yarns, achieving the effect of adhesion, and the first shed and the third shed repeat this organization movement.

[0031] In the present application, the separation area of the double-layer functional jacquard fabric includes a first shed and a second shed, and the first shed and the second shed repeat this organization movement to realize the independent weaving of the surface fabric and the lining fabric; the connection area of the double-layer functional jacquard fabric preferably includes a first shed and a third shed; the first shed and the third shed repeat this organization movement to realize the interweaving of the surface fabric and the lining fabric, forming a pocket-shaped, channel-shaped or local composite structure, which not only enhances the three-dimensional sense of the fabric, but also improves the structural stability.

[0032] In the present application, the warp yarns of the double-layer functional jacquard fabric are preferably one or more combined yarns selected from the group consisting of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose and silk, further preferably polyester yarn, and specifically preferably 30D / 48F polyester fine denier yarn.

[0033] In the present application, the weft yarn of the double-layer functional jacquard fabric is preferably one or more combinations of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose, silk and polyamide yarn, and is particularly preferably a blended yarn of a first yarn and a second yarn, the first yarn is preferably polyester yarn, and is particularly preferably 100D / 192F polyester fine denier yarn; the second yarn is preferably modal, Tencel or viscose, the modal is 106D modal, the Tencel is 106D Tencel, and the viscose is 120D viscose.

[0034] In the present application, the warp density of the surface fabric and the warp density of the lining fabric are the same. In the present application, the warp density of the surface fabric is preferably 30-100 roots / cm, and is particularly preferably 30 roots / cm, 40 roots / cm, 50 roots / cm, 60 roots / cm, 68 roots / cm, 70 roots / cm, 80 roots / cm, 90 roots / cm or 100 roots / cm.

[0035] In the present application, the weft density of the surface fabric and the weft density of the lining fabric are the same. In the present application, the weft density of the surface fabric is preferably 30-100 roots / cm, and is particularly preferably 30 roots / cm, 40 roots / cm, 50 roots / cm, 60 roots / cm, 70 roots / cm, 80 roots / cm, 90 roots / cm or 100 roots / cm.

[0036] In the present application, the warp density of the surface fabric and the warp density of the lining fabric are the same. In the present application, the warp density of the surface fabric is preferably 30-100 roots / cm, and is particularly preferably 30 roots / cm, 40 roots / cm, 50 roots / cm, 60 roots / cm, 68 roots / cm, 70 roots / cm, 80 roots / cm, 90 roots / cm or 100 roots / cm.

[0037] In the present application, the warp density and weft density of the surface fabric and the lining fabric are set so that the overall fabric structure is dense, the hand feeling is soft, and the pattern is rich and clear.

[0038] After obtaining the gray fabric, the present application sequentially performs dyeing, heat setting, waterproof finishing and drying on the gray fabric to obtain the double-layer functional jacquard fabric.

[0039] The present application does not make specific limitations on the way of dyeing and heat setting, and dyeing and heat setting operations known to those skilled in the art can be used.

[0040] In the present application, the reagent used for waterproof finishing is preferably a waterproof finishing liquid, which preferably comprises a waterproof agent and a crosslinking agent; the waterproof agent is preferably RSY waterproof agent, C6 three-proofing finishing agent or R3 waterproof agent; and the crosslinking agent is preferably FM-1 crosslinking agent.

[0041] In the present application, the concentration of the waterproofing agent in the waterproof finishing liquid is preferably 40-100 g / L, and specifically preferably 40 g / L, 50 g / L, 60 g / L, 70 g / L, 80 g / L, 90 g / L or 100 g / L, and the concentration of the crosslinking agent is preferably 6-14 g / L, and specifically preferably 6 g / L, 8 g / L, 10 g / L, 12 g / L or 14 g / L.

[0042] In the present application, the waterproofing method is preferably one-dip-one-rolling of the waterproof finishing liquid, and the rolling rate is preferably 70%.

[0043] In the present application, the drying preferably comprises pre-drying and baking in sequence. In the present application, the temperature of the pre-drying is preferably 100-130℃, and specifically preferably 100℃, 110℃, 120℃ or 130℃, and the time is preferably 10-20 min, and specifically preferably 10 min, 15 min or 20 min; the temperature of the baking is preferably 150-175℃, and specifically preferably 150℃, 155℃, 160℃, 165℃, 170℃ or 175℃, and the time is preferably 1-5 min, and specifically preferably 1 min, 2 min, 3 min, 4 min or 5 min.

[0044] The preparation method of the double-layer functional jacquard fabric provided by the present application is described in detail below in combination with examples, but they should not be understood as limiting the scope of protection of the present application.

[0045] Example 1 The preparation of the polyester / Modal double-layer functional jacquard fabric comprises the following steps: Selection of warp and weft yarns: the warp yarn is 30D / 48F polyester fine denier yarn, and the weft yarn is 100D / 192F polyester fine denier yarn, blended with Modal (106D) at a ratio of 1:1; The above warp and weft yarns are used as raw materials to weave on a multi-arm loom, a jacquard loom and a water jet loom (shuttleless loom); the total number of warp yarns of the surface fabric is 13556, of which 6778 are transported by harness frames (2 pages) and 6778 are controlled by jacquard heads; the total number of warp yarns of the inner fabric is 13556, all of which are transported by harness frames (4 pages); The structure parameters of the fabric are set as follows: the warp density of the surface fabric is 68 roots / cm, and the weft density is 50 roots / cm; the warp density of the inner fabric is 68 roots / cm, and the weft density is 50 roots / cm; The separation area of the double-layer functional jacquard fabric comprises a first shed and a second shed; the first shed: the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the heald frame are interwoven with the surface layer weft yarns to form surface layer weave; the second shed: the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the heald frame are all lifted, at the same time, the inner layer warp yarns delivered by the heald frame are interwoven with the inner layer weft yarns to form inner layer weave, and the first shed and the second shed repeat the weave movement; The connection area of the double-layer functional jacquard fabric comprises a first shed and a third shed; the first shed: the surface layer warp yarns delivered by the jacquard head and the surface layer warp yarns delivered by the heald frame are interwoven with the surface layer weft yarns to form surface layer weave; the third shed: the surface layer warp yarns delivered by the heald frame are normally lifted, at the same time, according to the needs of the weave chart, the surface layer warp yarns delivered by the jacquard head sink to the inner layer weave position, and form interweaving points with the inner layer weft yarns, so that the surface layer weave and the inner layer weave are connected through the warp yarn movement to achieve the effect of adhesion, and the first shed and the third shed repeat the weave movement; After weaving is completed, the obtained gray fabric is subjected to conventional dyeing and heat setting treatment in sequence; Subsequently, waterproof finishing (the waterproof finishing liquid comprises 70 g / L C6 three-proofing finishing agent and 10 g / L FM-1 crosslinking agent, and a “one-dipping-one-rolling” process is adopted, and the pick-up rate is controlled to be 70%) and drying (in a setting drying machine, pre-drying is performed at 100℃ for 10 min, and then baking is performed at 175℃ for 60 s, and the waterproof finishing treatment is completed) are sequentially performed, to obtain the polyester / modei double-layer functional jacquard fabric.

[0046] The polyester / modei double-layer functional jacquard fabric after finishing has the following properties: (1) the appearance is large jacquard style, and the pattern is clear and full; (2) excellent waterproof performance is achieved, according to the test and evaluation of the waterproof performance of textiles by the water soaking method in GB / T 4745-2012, the waterproof grade is 5 when not washed, the waterproof grade can still be maintained to be 4 after washing for 5 times, and the waterproof grade can still be maintained to be 4 after washing for 10 times.

[0047] The fabric has a decorative appearance, structural stability and multifunctionality, and is suitable for functional home textile fabrics, high-end clothing fabrics and other textile application scenarios with high requirements on appearance and performance.

[0048] Example 2 Preparation of polyester / tencel waterproof double-layer functional jacquard fabric The warp yarns and weft yarns are selected as follows: the warp yarns are 30 D / 48 F polyester fine denier yarns; the weft yarns are 100 D / 192 F polyester fine denier yarns, which are blended with tencel fibers (1.80 D) at a ratio of 1:1; The above warp and weft are used as raw materials to weave on a dobby loom, a jacquard loom and a water jet loom; the warp of the surface fabric is 13556 in total, of which 6778 is transported by the heald frame (2 pages) and 6778 is controlled by the jacquard head; the warp of the inner fabric is 13556 in total, of which 13556 is transported by the heald frame (4 pages); The structure parameters of the fabric are set as follows: the warp density of the surface fabric is 68 roots / cm, and the weft density is 50 roots / cm; the warp density of the inner fabric is 68 roots / cm, and the weft density is 50 roots / cm; The separation area of the double-layer functional jacquard fabric includes a first shed and a second shed; the first shed: the surface warp transported by the jacquard head and the surface warp transported by the heald frame are interwoven with the surface weft to form surface weave; the second shed: the surface warp transported by the jacquard head and the surface warp transported by the heald frame are all raised, at the same time, the inner warp transported by the heald frame is interwoven with the inner weft to form inner weave, and the first shed and the second shed repeat the weave movement; The connection area of the double-layer functional jacquard fabric includes a first shed and a third shed; the first shed: the surface warp transported by the jacquard head and the surface warp transported by the heald frame are interwoven with the surface weft to form surface weave; the third shed: the surface warp transported by the heald frame is normally raised, at the same time, according to the needs of the weave chart, the surface warp transported by the jacquard head is lowered to the inner weave position, and the interweaving point is formed with the inner weft, so that the surface weave and the inner weave are connected through the warp movement to achieve the effect of adhesion, and the first shed and the third shed repeat the weave movement; After weaving, the obtained gray fabric is sequentially subjected to conventional dyeing and heat setting treatment; Subsequently, waterproof finishing (the waterproof finishing liquid includes 70 g / L RSY waterproof finishing agent and 10 g / L FM-1 crosslinking agent, and a “one-dipping-one-rolling” process is adopted, and the rolling rate is controlled to be 70%) and drying (in a setting dryer, pre-drying is performed at 100℃ for 10 min, and then baking is performed at 175℃ for 60 s, and the waterproof finishing treatment is completed) are sequentially performed, to obtain the polyester / Tencel double-layer functional jacquard fabric.

[0049] According to the detection and evaluation of the waterproof performance of textiles by the GB / T 4745-2012 water drop method test, the waterproof grade of the obtained polyester / Tencel double-layer functional jacquard fabric before washing reaches 4.5; after 10 times of washing, the waterproof grade can still be maintained to be above 4.5, which shows good washing resistance and durability. In addition, the obtained polyester / Tencel double-layer functional jacquard fabric has soft hand feeling, and has both the silky feeling of Tencel and the durability of polyester, and is suitable for high-end functional fabric applications.

[0050] This embodiment verifies the adaptability and universality of the present application to different fiber blended fabrics, and ensures the effective combination of fabric functionality and aesthetics.

[0051] Example 3 The preparation of the polyester / viscose waterproof double-layer functional jacquard fabric is as follows: The warp yarns and weft yarns are selected as follows: the warp yarns are 30D / 48F polyester fine denier yarns; the weft yarns are 100D / 192F polyester fine denier weft yarns, which are blended with viscose fiber (1.120D) at a ratio of 1:1; The above warp yarns and weft yarns are used as raw materials to weave on a dobby loom, a jacquard loom and a water jet loom; the warp yarns of the surface fabric are totally 13556, of which 6778 are transported by the harness (2 pages) and 6778 are controlled by the jacquard head; the warp yarns of the inner fabric are totally 13556, of which 13556 are transported by the harness (4 pages); The structure parameters of the fabric are set as follows: the warp density of the surface fabric is 68 roots / cm, and the weft density is 50 roots / cm; the warp density of the inner fabric is 68 roots / cm, and the weft density is 50 roots / cm; The separation area of the double-layer functional jacquard fabric includes a first shed and a second shed; in the first shed, the surface warp yarns transported by the jacquard head and the surface warp yarns transported by the harness interweave with the surface weft yarns to form the surface weave; in the second shed, the surface warp yarns transported by the jacquard head and the surface warp yarns transported by the harness are all raised, while the inner warp yarns transported by the harness interweave with the inner weft yarns to form the inner weave, and the first shed and the second shed repeat the weave movement; The connection area of the double-layer functional jacquard fabric includes a first shed and a third shed; in the first shed, the surface warp yarns transported by the jacquard head and the surface warp yarns transported by the harness interweave with the surface weft yarns to form the surface weave; in the third shed, the surface warp yarns transported by the harness are normally raised, while the surface warp yarns transported by the jacquard head sink to the inner weave position according to the needs of the weave chart, and form interweaving points with the inner weft yarns, so that the surface weave and the inner weave achieve the effect of adhesion through the warp movement, and the first shed and the third shed repeat the weave movement; After weaving, the obtained gray fabric is subjected to conventional dyeing, heat setting, waterproofing and drying in sequence; The difference from Example 1 is that the waterproof finishing liquid includes R3 waterproof agent 70g / L and FM-1 crosslinking agent 10g / L, and one-dip-one-rolling is adopted, with the rolling rate controlled at about 70%.

[0052] The obtained polyester / viscose double-layer functional jacquard fabric reaches the waterproof grade of 5 according to the test of GB / T 4745-2012 Textiles - Evaluation of the Waterproof Performance - Water Drop Test. After 10 times of household washing, the waterproof grade of the fabric still remains at 4.5, showing good washing resistance and durability. In addition, the finished fabric still maintains good air permeability and soft hand feeling, and has excellent waterproof function, fully meeting the actual application requirements of functional fabrics.

[0053] The embodiment proves feasibility and effect stability of the finishing process of the application under different waterproof agent formulations, and enhances adaptability and practical value of the process.

[0054] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered within the protection scope of the present application.

Claims

1. A method for producing a double-layer functional jacquard fabric, characterized by, The double-layer functional jacquard fabric comprises a surface fabric and an inner fabric, and comprises the following steps: The warp and weft are used as raw materials, and a jacquard loom, a dobby loom and a shuttleless loom are used for weaving to obtain a grey fabric; The grey fabric is sequentially subjected to dyeing, heat setting, waterproof finishing and drying to obtain the double-layer functional jacquard fabric; The warp of the surface fabric is partially conveyed by the harness frame and partially conveyed by the jacquard head; The warp of the inner fabric is all conveyed by the harness frame; The weft of the surface fabric and the inner fabric is all conveyed by the shuttleless loom; The double-layer functional jacquard fabric comprises a separation area and a connection area; The connection area of the double-layer functional jacquard fabric has a jacquard weave structure; The connection area of the double-layer functional jacquard fabric is interwoven with the surface fabric and the inner fabric.

2. The production method according to claim 1, characterized by, The warp of the double-layer functional jacquard fabric is conveyed to the harness frame and the jacquard head by a single warp beam or a double warp beam.

3. The preparation method according to claim 1, characterized in that, The separation area of the double-layer functional jacquard fabric comprises a first shed and a second shed; the first shed: the surface warp conveyed by the jacquard head and the surface warp conveyed by the harness frame are interwoven with the surface weft to form a surface weave; the second shed: the surface warp conveyed by the jacquard head and the surface warp conveyed by the harness frame are all raised, at the same time, the inner warp conveyed by the harness frame is interwoven with the inner weft to form an inner weave, and the first shed and the second shed repeat the weave movement.

4. The production method according to claim 1 or 3, characterized by, The connection area of the double-layer functional jacquard fabric comprises a first shed and a third shed; the first shed: the surface warp conveyed by the jacquard head and the surface warp conveyed by the harness frame are interwoven with the surface weft to form a surface weave; the third shed: the surface warp conveyed by the harness frame is normally raised, at the same time, according to the needs of the weave chart, the surface warp conveyed by the jacquard head is lowered to the inner weave position, and the surface weave and the inner weave are connected through the warp movement to achieve the effect of adhesion; the first shed and the third shed repeat the weave movement.

5. The preparation method according to claim 1, characterized in that, The warp of the double-layer functional jacquard fabric is one or more combined yarns selected from the group consisting of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose and silk; The weft of the double-layer functional jacquard fabric is one or more combined yarns selected from the group consisting of polyester yarn, nylon yarn, regenerated polyester, modal, Tencel, viscose, silk and nylon.

6. The method of claim 1, wherein, The warp density of the surface fabric and the inner fabric is independently 30-100 roots / cm. The weft density of the surface fabric and the inner fabric is independently 30-100 roots / cm.

7. The preparation method according to claim 1, characterized in that, The reagent used in the waterproof finishing is a waterproof finishing liquid, the waterproof finishing liquid comprises a waterproof agent and a crosslinking agent; the waterproof agent is RSY waterproof agent, C6 three-proofing finishing agent or R3 waterproof agent; and the crosslinking agent is FM-1 crosslinking agent.

8. The preparation method according to claim 7, characterized in that, In the waterproof finishing liquid, the concentration of the waterproof agent is 40-100 g / L, and the concentration of the crosslinking agent is 6-14 g / L.

9. The production method according to claim 7 or 8, characterized by, The waterproof finishing mode is one dip and one roll of the waterproof finishing liquid; the roll liquid rate is 70%.

10. The method of claim 1, wherein, The drying comprises pre-drying and baking in sequence, the pre-drying temperature is 100-130 DEG C, and the time is 10-20 min; the baking temperature is 150-175 DEG C, and the time is 1-5 min.

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