A cutting piece sewing structure and a waterproof pressing and sewing manufacturing process

Abstract

The present invention relates to the technical field of garment processing, in particular to a cut piece gathering structure and a waterproof pressing and gathering manufacturing process. The cut piece gathering structure includes a bottom fabric, an elastic layer, and a surface fabric stacked in sequence; the bottom fabric is connected to the elastic layer by sewing threads; the surface fabric is composed of a plurality of connecting parts and a plurality of pleated parts; the connecting parts are connected to the elastic layer; there is a gap between the pleated parts and the elastic layer. By restricting the excessive stretching of the elastic layer through the bottom fabric, and setting the connecting parts and the pleated parts on the surface fabric, when the elastic layer shrinks, the deformation of the connecting parts is smaller than that of the pleated parts, so that the original shape of the connecting parts can be maintained, and the connecting parts are not easily deformed. Under the interval of the connecting parts, the pleating degree of the pleated parts is controllable, thereby making the texture of the entire cut piece not easily deformed.

Description

Technical Field

[0001] The present invention relates to the technical field of garment processing, in particular to a cut piece gathering structure and a waterproof pressing and gathering manufacturing process. Background Art

[0002] When processing garments, ribbing, sewing elastic bands, etc. are usually used at the bottom of the outer garment and the cuffs. The gathering process used is that the upper thread (visible thread) uses ordinary thread, and the lower thread (bobbin thread) uses elastic thread (thin elastic band thread), often several rows are parallel and evenly spaced. As Figure 1 shown, under the traction of the elastic thread 200, the fabric 100 forms a pleated structure.

[0003] However, the requirements for wearing, maintenance, and care of the outer garment using ribbing, sewing elastic bands, etc. are extremely high. Because the ribbing is prone to deformation, and the elastic band is prone to partial breakage, losing elasticity, forming a ruffle, which affects the appearance and wearing use. In the gathering process, since the bobbin thread is a parallel double thread, the elastic forces of the two elastic threads are inconsistent, which is easy to break the thread, leaving a sewing allowance, and is easy to come loose.

[0004] In addition, since the gathering machine is a special dedicated machine, it cannot be produced in a garment factory and needs to be produced in a specific factory, which increases the time consumption and transportation cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a cut piece gathering structure for the problem that the cuffs or hems made by the existing gathering process are prone to thread breakage and loss of elasticity. The cut piece gathering structure uses an elastic layer, and the surface layer fabric is composed of a pleated part and a connecting part. The connecting part is connected to the elastic layer, so that the cut piece gathering structure can maintain good elasticity and is not prone to deformation.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A cut piece gathering structure includes a bottom layer fabric, an elastic layer, and a surface layer fabric stacked in sequence; the bottom layer fabric is connected to the elastic layer by sewing; the surface layer fabric is composed of a plurality of connecting parts and a plurality of pleated parts; the connecting part is connected to the elastic layer; there is a gap between the pleated part and the elastic layer.

[0008] The perspective of stacking is a stacked structure when observed from the cross-section of the fabric.

[0009] Preferably, the elastic layer is an elastic band layer.

[0010] In the surface layer fabric, the part other than the pleated part is the connecting part; the part other than the connecting part is the pleated part.

[0011] The bottom fabric is sewn to the elastic layer. The bottom fabric can limit the maximum stretching distance of the elastic layer, preventing the elastic layer from undergoing excessive elastic stretching deformation that may cause the elastic layer to break. It can also prevent the elastic layer from being overstretched and separating from the surface fabric. When the surface fabric is connected to the elastic layer through the connecting part, the elastic layer is in a stretched state. After the elastic layer contracts, since the connecting part remains connected to the elastic layer, the connecting part is less affected by the contraction of the elastic layer and can maintain its original state. There is a gap between the wrinkled part and the elastic layer, which is prone to bulging outwards when the elastic layer contracts, generating wrinkles. That is, when the elastic layer contracts, the connecting part and the wrinkled part deform to different degrees, making it easier to form different texture wrinkles and less likely to deform.

[0012] As a preferred embodiment of the present invention, the wrinkled part is a first strip shape, and the connecting part is a second strip shape; the wrinkled part and the connecting part are arranged alternately. That is, the surface fabric is divided into several connecting parts and wrinkled parts arranged at intervals;

[0013] Using strip-shaped wrinkled parts and strip-shaped connecting parts to form vertical strip-shaped spaced wrinkles.

[0014] As a preferred embodiment of the present invention, the connecting part is circular, oval or polygonal. The viewing angle is the top-down viewing angle when the pleating structure of the cut piece is laid flat horizontally.

[0015] As a preferred embodiment of the present invention, the wrinkled part is circular, oval or polygonal.

[0016] By setting the wrinkled part and the connecting part into different shapes, when the elastic layer contracts, the wrinkled part and the connecting part combine to form different texture or bubble effects.

[0017] As a preferred embodiment of the present invention, the connecting part includes a connecting border, and the connecting border is located at the periphery of the pleating structure of the cut piece.

[0018] By setting a connecting border at the periphery of the pleating structure of the cut piece, it prevents wrinkles from occurring at the periphery of the cut piece, which is beneficial for maintaining the wrinkled morphology of the surface fabric.

[0019] As a preferred embodiment of the present invention, the pleating structure of the cut piece has a length direction; the bottom fabric and the surface fabric are integrated on the side in the length direction.

[0020] That is, the bottom fabric and the surface fabric are one piece of fabric. A piece of fabric is folded into a double-layer fabric, with one layer being the bottom fabric and the other layer being the surface fabric. The elastic layer is sandwiched between the two layers of fabric.

[0021] As a preferred embodiment of the present invention, both ends of the cut piece gathering structure in the length direction are connected to form a ring. The cut piece gathering structure is connected into a ring by the original fabric piece and used as a cuffs. When not connected into a ring, the cut piece gathering structure is used as a hem. In use, the bottom layer fabric is located on the side close to the human body, and the surface layer fabric is located on the side far from the human body.

[0022] As a preferred embodiment of the present invention, it further includes an adhesive layer; the adhesive layer is located between the surface layer fabric and the elastic layer; the adhesive layer includes a plurality of adhesive parts; the adhesive parts are positionally matched with the connecting parts; the connecting parts are adhesively connected to the elastic layer through the adhesive parts.

[0023] By means of adhesion with the glue layer, it is beneficial to realize the connection between the elastic layer and the surface layer fabric in the stretched state, and it is convenient to maintain the morphology of the wrinkled part and the connecting part.

[0024] The present invention also provides a glue-pressing and gathering manufacturing process for manufacturing the above-mentioned cut piece gathering structure, including the following steps:

[0025] S1, Prepare the cut piece fabric; stretch the elastic layer, and sew and connect the stretched elastic layer with the bottom layer fabric;

[0026] S2, Coat glue on the surface layer fabric, cover the surface layer fabric on the stretched elastic layer, and the glue is located between the surface layer fabric and the elastic layer; select a glue-pressing template according to the preset shapes of the wrinkled part and the connecting part in the surface layer fabric; perform glue pressing to connect the connecting part with the elastic layer.

[0027] As a preferred embodiment of the present invention, in step S2, the elastic layer and the bottom layer fabric are sewn and connected with elastic thread; the stitch density is 10-11 stitches per inch.

[0028] As a preferred embodiment of the present invention, in step S4, a glue-pressing machine is used for glue pressing, the glue-pressing temperature is 140-150 °C, the time is 15-18 s, and the pressure is 5-6 kg / cm 2 .

[0029] To sum up, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0030] 1. For the cut piece gathering structure of the present invention, the bottom layer fabric restricts the excessive stretching of the elastic layer. The surface layer fabric is provided with connecting parts and wrinkled parts. When the elastic layer contracts, the deformation of the connecting parts is smaller than that of the wrinkled parts, and the original shape of the connecting parts can be maintained. The connecting parts are not easily deformed. Under the interval of the connecting parts, the wrinkling degree of the wrinkled parts is controllable, so that the texture of the entire cut piece is not easily deformed.

[0031] 2. The cutting and gathering structure of the present invention, by setting the pleated part and the connecting part into different shapes, when the elastic layer shrinks, the pleated part and the connecting part are combined into different textures or bubble effects. By setting a connecting border around the cutting and gathering structure, it prevents the occurrence of pleats around the cut piece, which is beneficial to maintaining the pleated appearance of the surface layer fabric. There are no stitches on the front of the surface layer fabric, but there are bubble or pleat effects, which is more beautiful.

[0032] 3. The cutting and gathering and pressing adhesive manufacturing process of the present invention is convenient to operate and reduces the production time. The gathering process can be completed in a ready-to-wear processing factory without using a special machine, which increases the efficiency. Due to the use of the pressing adhesive process, the surface indentation is more uniform, more three-dimensional than using a gathering machine before, and the effect lasts longer. It improves the effect of multiple lines and uneven intervals in the existing gathering structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic structural diagram of the cutting and gathering structure in the prior art.

[0034] Figure 2 It is a schematic structural diagram of the cutting and gathering structure of the present invention (the elastic layer is in a contracted state).

[0035] Figure 3 It is a schematic structural diagram of the cutting and gathering structure of the present invention (the elastic layer is in a stretched state).

[0036] Figure 4 It is a schematic diagram of the reverse structure of the cutting and gathering structure of the present invention.

[0037] Figure 5 It is a schematic diagram of the front structure of the cutting and gathering structure of the present invention.

[0038] Figure 6 It is a schematic diagram of the structure and processing steps after the cutting and gathering structure of the present invention is unfolded.

[0039] Figure 7 It is a schematic structural diagram of the pressing adhesive template used in the pressing adhesive and gathering manufacturing process of the present invention.

[0040] Figure 8 It is a schematic structural diagram of another pressing adhesive template used in the pressing adhesive and gathering manufacturing process of the present invention.

[0041] Reference Signs: 100 - fabric; 200 - elastic cord; 1 - surface layer fabric; 11 - connecting part; 12 - pleated part; 13 - connecting border; 21 - adhesive part; 3 - elastic layer; 4 - bottom layer fabric; 5 - stitch; 6 - connecting piece; 7 - frame; 71 - hollow part; d - cut piece width. DETAILED DESCRIPTION OF THE INVENTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings.

[0043] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] Embodiment 1

[0045] A cutting piece gathering structure, as Figures 2 - 5 shown, includes a bottom fabric 4, an elastic layer 3 and a surface fabric stacked in sequence; the bottom fabric 4 is connected to the elastic layer 3 by a sewing thread 5; the surface fabric is composed of a plurality of connecting parts 11 and a plurality of pleated parts 12; the connecting parts 11 are connected to the elastic layer 3; there is a gap between the pleated parts 12 and the elastic layer 3. The elastic layer 3 is an elastic band layer.

[0046] It further includes an adhesive layer; the adhesive layer is located between the surface fabric and the elastic layer 3; the adhesive layer includes a plurality of adhesive parts 21; the adhesive parts 21 are matched with the connecting parts 11 in position; the connecting parts 11 are adhesively connected to the elastic layer 3 through the adhesive parts 21.

[0047] In the surface fabric, what is outside the pleated parts 12 is the connecting parts 11; what is outside the connecting parts 11 is the pleated parts 12.

[0048] The bottom fabric 4 is connected to the elastic layer 3 by sewing, and the bottom fabric 4 can limit the maximum stretching distance of the elastic layer 3. It can prevent the elastic layer 3 from undergoing excessive elastic stretching deformation, resulting in the fracture of the elastic layer 3. It can also prevent the elastic layer 3 from being overstretched and separated from the surface fabric.

[0049] As Figure 3 shown, when the surface fabric is connected to the elastic layer 3 through the connecting parts 11, the elastic layer is in a stretched state. When the elastic layer contracts, as Figure 2 shown, since the connecting parts 11 remain connected to the elastic layer 3, the connecting parts 11 are less affected by the contraction of the elastic layer 3 and can maintain their original state. When the elastic layer 3 used has a large elasticity and a large contraction strength, the connecting parts 11 undergo a small deformation, but the deformation degree of the connecting parts 11 is much smaller than that of the pleated parts 12. There is a gap between the pleated parts 12 and the elastic layer 3, and it is easy to bulge outwards when the elastic layer 3 contracts, generating pleats.

[0050] In a further solution, the pleated parts 12 are in a first strip shape, and the connecting parts 11 are in a second strip shape; the pleated parts 12 and the connecting parts 11 are arranged alternately.

[0051] As Figures 4 - 6As shown, both the pleated portion 12 and the connecting portion 11 are vertical stripes. By using a strip-shaped pleated portion 12 and a strip-shaped connecting portion 11, vertical strip-shaped spaced pleats are formed.

[0052] In another solution, the connecting portion is circular, oval or polygonal. Alternatively, the pleated portion is circular, oval or polygonal. By setting the pleated portion 12 and the connecting portion 11 to different shapes, when the elastic layer 3 contracts, the pleated portion 12 and the connecting portion 11 are combined into different textures or bubble effects.

[0053] The connecting portion 11 includes a connecting frame 13, and the connecting frame 13 is located at the periphery of the cut piece gathering structure. By arranging the connecting frame 13 at the periphery of the cut piece gathering structure, wrinkles at the periphery of the cut piece are prevented, which is conducive to maintaining the wrinkle morphology of the surface layer fabric.

[0054] When the elasticity of the elastic layer is relatively large, as Figure 5 shown, since there is no folded fabric arranged at intervals on the connecting frame 13, the whole connecting frame 13 contracts, forming multiple fine wrinkles, but these wrinkles will not be transmitted to the middle strip-shaped connecting portion 11, and the connecting portion 11 is not easily deformed.

[0055] As Figure 6 shown, the cut piece gathering structure has a length direction; the bottom layer fabric 4 and the surface layer fabric are integrally connected on the side in the length direction. Both ends in the length direction of the cut piece gathering structure are connected by a connecting fabric piece 6 to form a ring. The connecting fabric piece is preferably made of the original fabric and used as a cuff. When in use, the bottom layer fabric 4 is located on the side close to the human body, and the surface layer fabric is located on the side far from the human body.

[0056] Embodiment 2

[0057] A waterproof pressing and gathering manufacturing process for manufacturing a cuff including the cut piece gathering structure of Embodiment 1, comprising the following steps: As Figure 6 shown,

[0058] S1, Prepare the cut piece fabric; stretch the elastic layer, and sew and connect the stretched elastic layer with the bottom layer fabric; 20 cm long fabric is used as the surface layer fabric and the bottom layer fabric. An elastic band with an original size of 15 cm is used as the elastic layer. After stretching the elastic band to 20 cm, it is sewn with the bottom layer fabric. The bottom thread uses Coats' PP thread, and the stitch density is 10 - 11 stitches per inch. The PP thread contains the elastic band. The sewing line is two and is located at the equidistant line position.

[0059] Figure 6 The black and white vertical stripes in only represent the pleat structure and do not mean that the pleat patterns of the surface layer fabric and the bottom layer fabric are the same. Usually, there are more pleats in the bottom layer fabric than in the surface layer fabric.

[0060] S2. Apply glue to the surface layer fabric over the entire area. Cover the stretched elastic layer with the surface layer fabric, with the glue positioned between the surface layer fabric and the elastic layer. Select a pressure-sensitive adhesive template according to the preset shapes of the pleated and connecting parts in the surface layer fabric. Perform pressure-sensitive adhesive application to connect the connecting part to the elastic layer. The glue used is 301 glue with ethyl α-cyanoacrylate as the main component.

[0061] Use a pressure-sensitive adhesive template as shown in Figure 7 to perform pressure-sensitive adhesive application. There is a vertical strip-shaped hollow part 71 on the frame 7, and the hollow part 71 corresponds to the pleated part 12 in the cut piece. The width of the hollow part 71 in the vertical direction is less than the width d of the cut piece. The hollow part 71 will not cause pressure-sensitive adhesive treatment to the fabric, and can keep the pleated part 12 from adhering to the elastic layer 3.

[0062] Use a pressure-sensitive adhesive machine for pressure-sensitive adhesive application. The pressure-sensitive adhesive temperature is 140 - 150 °C, the time is 15 - 18 s, and the pressure is 5 - 6 kg / cm 2 . Within the above pressure-sensitive adhesive parameter range, after pressure-sensitive adhesive application to an elastic band layer with a length of 15 cm and a fabric with a length of 20 cm, the pleated part 12 and the connecting part 11 can maintain a strip shape, and there are slight wrinkles in the connecting border 13, which is more beautiful.

[0063] S3. Connect the two ends of the cut piece with a connecting cut piece 6. The connecting cut piece 6 is made of the original fabric and is in the shape of a "tofu block".

[0064] When a bubble shape needs to be presented, a pressure-sensitive adhesive template as shown in Figure 8 can be used.

[0065] For other textures or bubble shapes, only replace the pressure-sensitive adhesive template to achieve.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cutting piece gathering structure, characterized in that, the cutting piece gathering structure is used for garment processing, and the cutting piece gathering structure includes a bottom fabric, an elastic layer and a surface fabric stacked in sequence; the cutting piece gathering structure has a length direction, and the bottom fabric and the elastic layer are connected by sewing in the length direction; the surface fabric is composed of a plurality of connecting parts and a plurality of wrinkled parts; the connecting parts are connected to the elastic layer through an adhesive layer; there is a gap between the wrinkled parts and the elastic layer; the adhesive layer includes a plurality of adhesive parts, and the adhesive parts are matched with the positions of the connecting parts; the connecting parts are adhesively connected to the elastic layer through the adhesive parts; the wrinkled parts are in the shape of a first strip, and the connecting parts are in the shape of a second strip; the wrinkled parts and the connecting parts are arranged alternately, or the connecting parts are circular, oval or polygonal; the connecting parts include connecting frames, and the connecting frames are located on the periphery of the cutting piece gathering structure; the manufacturing process of the cutting piece gathering structure includes the following steps: S1, Prepare the cutting piece fabric; stretch the elastic layer, and sew and connect the stretched elastic layer with the bottom fabric; S2, Coat glue on the surface fabric, cover the surface fabric on the stretched elastic layer, and the glue is located between the surface fabric and the elastic layer; select a pressing glue template according to the preset shapes of the wrinkled parts and the connecting parts in the surface fabric; perform pressing glue to connect the connecting parts with the elastic layer.

2. The cutting piece gathering structure according to claim 1, characterized in that, the bottom fabric and the surface fabric are integrated on the side in the length direction.

3. The cutting piece gathering structure according to claim 2, characterized in that, both ends in the length direction of the cutting piece gathering structure are connected to form a ring.

4. The cutting piece gathering structure according to claim 1, characterized in that, in step S2, the elastic layer and the bottom fabric are sewn and connected with elastic threads; the stitch density is 10-11 stitches per inch.

5. The cutting piece gathering structure according to claim 1, characterized in that, In step S4, a rubber pressing machine is used for rubber pressing. The rubber pressing temperature is 140 - 150 °C, the time is 15 - 18 s, and the pressure is 5 - 6 kg / cm 2 .

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