A method for preparing multi-directional elastic fabric

Abstract

The present invention provides a method for preparing a multi-directional stretch fabric, comprising the following steps: the upper non-woven fabric material is wrinkled by using a shrinking driving wheel and a plurality of wrinkling wheels; the cut elastic material is wrinkled by adjusting the speed difference between a plurality of traction wheels; the lower non-woven fabric material is wrinkled by using a shrinking driving wheel and a plurality of wrinkling wheels; the upper non-woven fabric material, the cut elastic material and the lower non-woven fabric material are compounded in an ultrasonic unit, the ultrasonic bottom roller is arranged in a regular or irregular pattern, the three layers of material are welded by using an ultrasonic unit, and the composited whole material is a multi-directional stretch fabric. The present invention realizes the mechanized production of multi-directional stretch fabric by equipment, replaces the traditional unidirectional stretch process, has a stable manufacturing process, and has the advantages of low cost and high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary products, and in particular to a method for preparing a multi-directional elastic fabric. Background Art

[0002] Hygienic clothing products include underwear, menstrual pants, diapers, pull-up pants and other shorts-type sanitary products. Generally, they refer to shorts worn next to the skin, which are divided into men's and women's. Moreover, according to different genders, there are more and more styles. Differences in gender, age or environment have led to a great diversity of products.

[0003] The elastic fabric used in existing products can only be elastic in a single direction. Therefore, when the fabric is used to manufacture sanitary wearing products, the overall hip-wrapping performance is poor and the wearing comfort is low. Summary of the invention

[0004] The present invention aims to provide a method for preparing a multi-directional stretch fabric to overcome the above problems or at least partially solve the above problems.

[0005] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0006] The present invention provides a method for preparing a multi-directional stretch fabric, comprising the following steps:

[0007] S1, the upper non-woven fabric material is flatly laid and fed into the production line by the upper non-woven fabric unwinding unit, and the upper non-woven fabric material is kept in a stable conveying tension by the tension control unit. During the process, the upper non-woven fabric material is conveyed by means of a traction wheel, a tension swing rod and other mechanisms, and the upper non-woven fabric material is wrinkled by means of a shrinking driving wheel and a plurality of wrinkling wheels;

[0008] S2, the uncut elastic material is flatly fed into the production line by an elastic material unwinding unit, a tension control unit is used to keep the uncut elastic material in a stable conveying tension, a traction wheel mechanism is used to convey the uncut elastic material, a material cutting unit is set to cut the cut elastic material of a required width, a plurality of traction wheels are set, and the speed difference between the plurality of traction wheels is adjusted so that the cut elastic material forms a required elastic stretching effect;

[0009] S3, the lower non-woven fabric material is flatly laid and fed into the production line by the lower non-woven fabric unwinding unit, and the tension control unit is used to keep the lower non-woven fabric material in a stable conveying tension. During the process, the lower non-woven fabric material is conveyed by means of a traction wheel, a tension swing rod and other mechanisms, and a shrinking driving wheel and a plurality of pleating wheels are used to form a pleated effect on the lower non-woven fabric material;

[0010] S4, the upper non-woven fabric material, the cut elastic material and the lower non-woven fabric material are compounded in an ultrasonic unit, the ultrasonic bottom roller is arranged in a regular or irregular pattern, and the three layers of materials are welded by the ultrasonic unit, and the composite whole material is a multi-directional elastic fabric;

[0011] S5, the multi-directional stretch fabric is transported by a traction wheel mechanism, the multi-directional stretch fabric is cut according to the required width by a material cutting unit, and then transported by a traction wheel mechanism, and the multi-directional stretch fabric is subjected to static elimination treatment by a static elimination unit;

[0012] S6, the multi-directional elastic fabric uses a tension control unit to control the tension of the multi-directional elastic fabric;

[0013] S7, using a flattening tension wheel to process the flatness of the multi-directional stretch fabric;

[0014] S8, the static elimination unit is used to perform static elimination treatment on the multi-directional elastic fabric, and the fabric enters the winding unit to be wound into a roll material with a certain range of winding diameters under a required and stable tension.

[0015] As a further solution of the present invention, in step S1, the upper non-woven material is pre-creased to a certain extent by using a shrinking active wheel, and the upper non-woven material is sandwiched between the pleating wheels by using pleating wheels to form a greater degree of pleating effect.

[0016] As a further solution of the present invention, in step S2, the cut elastic material is input, and by setting traction wheel one, traction wheel two, and traction wheel three, and utilizing the speed difference between traction wheel one, traction wheel two, and traction wheel three, the cut elastic material forms the desired elastic stretching effect.

[0017] As a further solution of the present invention, in step S3, the lower non-woven fabric material is pre-creased to a certain extent by using a shrinking active wheel, and the lower non-woven fabric material is sandwiched between the creasing wheels by using creasing wheels to form a greater degree of creasing effect.

[0018] As a further solution of the present invention, in step S4, the ultrasonic bottom roller is arranged with a regularly arranged or irregularly arranged pattern, and multi-directional elasticity is formed by designing the arrangement of the pattern pressure points, including the size of the pattern pressure points and the horizontal and vertical distances.

[0019] The present invention provides a method for preparing a multi-directional elastic fabric, which has the beneficial effects of enhancing the wearing elasticity between a product body and a user, improving the hip wrapping effect, the body-fitting comfort, etc., and solving the technical problems of existing products such as discomfort and instability in wearing.

[0020] The equipment has been mechanized to produce multi-directional elastic cloth, replacing the traditional unidirectional elastic process. The manufacturing process is stable, and it has the advantages of low cost and high production efficiency, which solves the shortcomings of the traditional unidirectional elastic process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a process flow chart of the present invention.

[0023] Figure 2 It is a schematic diagram of the unfolded structure of the multi-directional elastic fabric in the present invention.

[0024] Figure 3 The cross-sectional structure of the multi-directional elastic fabric in the present invention is shown in FIG. Figure 1 .

[0025] Figure 4 The cross-sectional structure of the multi-directional elastic fabric in the present invention is shown in FIG. Figure 2 .

[0026] In the figure: 21, upper non-woven fabric; 22, uncut elastic material; 222, cut elastic material; 23, lower non-woven fabric; 24, multi-elastic fabric; 25, rolled material; 31, tension control unit; 32, traction wheel; 321, traction wheel one; 322, traction wheel two; 323, traction wheel three; 33, tension swing rod; 34, shrinking driving wheel; 35, pleating wheel; 36, material slitting unit; 37, ultrasonic unit; 38, static elimination unit; 39, flattening tension wheel; 41, upper non-woven fabric unwinding unit; 42, elastic material unwinding unit; 43, lower non-woven fabric unwinding unit; 44, winding unit. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0028] Example 1

[0029] See also Figure 1 , 2 3. A method for preparing a multi-directional stretch fabric provided by an embodiment of the present invention comprises the following steps:

[0030] S1, the upper non-woven fabric material 21 is flatly laid and fed into the production line by the upper non-woven fabric unwinding unit 41, and the upper non-woven fabric material 21 is kept in a stable conveying tension by the tension control unit 31. During the process, the upper non-woven fabric material 21 is conveyed by the traction wheel 32 and the tension swing rod 33 and other mechanisms, and the upper non-woven fabric material 21 is wrinkled by the shrinking driving wheel 34 and a plurality of wrinkling wheels 35;

[0031] S2, the uncut elastic material 22 is flattened and fed into the production line by the elastic material unwinding unit 42, and the uncut elastic material 22 is kept in a stable conveying tension by the tension control unit 31, and the uncut elastic material is conveyed by the traction wheel 32 mechanism.

[0032] 22, a material slitting unit 36 ​​is provided to slit the slit elastic material 222 of the required width, a traction wheel 1 321, a traction wheel 2 322, and a traction wheel 3 323 are provided, and the speed difference between the plurality of traction wheels is used to make the slit elastic material 222 form the required elastic stretching effect;

[0033] S3, the lower non-woven fabric material 23 is flatly laid and fed into the production line by the lower non-woven fabric unwinding unit 43, and the tension control unit 31 is used to keep the lower non-woven fabric material 23 in a stable conveying tension. During the process, the traction wheel 32, the tension swing rod 33 and other mechanisms are used for conveying, and the shrinking driving wheel 34 and a plurality of pleating wheels 35 are used to form a pleated effect on the lower non-woven fabric material 23;

[0034] S4, the upper non-woven fabric material 21, the cut elastic material 222 and the lower non-woven fabric material 23 are compounded in the ultrasonic unit 37, the ultrasonic bottom roller is arranged in a regular or irregular pattern, and the three layers of materials are welded by the ultrasonic unit 37, and the composite whole material is the multi-directional elastic fabric 24;

[0035] S5, the multi-directional elastic fabric 24 is transported by the traction wheel 32 mechanism, the multi-directional elastic fabric 24 is cut according to the required width by the material cutting unit 36, and then transported by the traction wheel 32 mechanism, and the multi-directional elastic fabric 24 is subjected to static elimination treatment by the static elimination unit 38;

[0036] S6, the multi-directional elastic fabric 24 uses the tension control unit 31 to control the tension of the multi-directional elastic fabric 24;

[0037] S7, using the flattening tension wheel 39 to process the flatness of the multi-directional elastic fabric 24;

[0038] S8, the static elimination unit 38 is used to perform static elimination on the multi-directional elastic fabric 24, and the multi-directional elastic fabric 24 enters the winding unit 44, where the multi-directional elastic fabric 24 is wound into a roll material 25 with a certain range of winding diameters under a required and stable tension.

[0039] Example 2

[0040] See also Figure 1 , 2 4. A method for preparing a multi-directional stretch fabric provided by an embodiment of the present invention comprises the following steps:

[0041] S1, the upper non-woven fabric material 21 is flatly laid and fed into the production line by the upper non-woven fabric unwinding unit 41, and the upper non-woven fabric material 21 is kept in a stable conveying tension by the tension control unit 31. During the process, the upper non-woven fabric material 21 is conveyed by the traction wheel 32 and the tension swing rod 33 and other mechanisms, and the upper non-woven fabric material 21 is wrinkled by the shrinking driving wheel 34 and a plurality of wrinkling wheels 35;

[0042] S2, the uncut elastic material 22 is flatly laid and fed into the production line by the elastic material unwinding unit 42, the uncut elastic material 22 is kept in a stable conveying tension by the tension control unit 31, the uncut elastic material 22 is conveyed by the traction wheel 32 mechanism, a material slitting unit 36 ​​is provided to slit the cut elastic material 222 of a required width, a traction wheel 1 321, a traction wheel 2 322, and a traction wheel 3 323 are provided, and the speed difference between the multiple traction wheels is used to make the cut elastic material 222 form the required elastic stretching effect;

[0043] S3, the upper non-woven fabric material 21 and the cut elastic material 222 are compounded in the ultrasonic unit 37, the ultrasonic bottom roller is arranged in a regular or irregular pattern, and the two layers of material are welded by the ultrasonic unit 37, and the composite whole material is the multi-directional elastic fabric 24;

[0044] S4, the multi-directional elastic fabric 24 is transported by the traction wheel 32 mechanism, the multi-directional elastic fabric 24 is cut according to the required width by the material cutting unit 36, and then transported by the traction wheel 32 mechanism, and the multi-directional elastic fabric 24 is subjected to static elimination treatment by the static elimination unit 38;

[0045] S5, the multi-directional elastic fabric 24 uses the tension control unit 31 to control the tension of the multi-directional elastic fabric 24;

[0046] S6, using the flattening tension wheel 39 to process the flatness of the multi-directional elastic fabric 24;

[0047] S7, the static elimination unit 38 is used to perform static elimination on the multi-directional elastic fabric 24, and the multi-directional elastic fabric 24 enters the winding unit 44, where the multi-directional elastic fabric 24 is wound into a roll material 25 with a certain range of winding diameters under a required and stable tension.

[0048] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for preparing a multi-directional stretch fabric, characterized in that: The following steps are involved: S1, the upper non-woven fabric material (21) is flatly laid and fed into the production line by using the upper non-woven fabric unwinding unit (41), and the upper non-woven fabric material (21) is kept at a stable conveying tension by using the tension control unit (31). During the process, the upper non-woven fabric material (21) is conveyed by using mechanisms such as a traction wheel (32) and a tension swing rod (33), and the upper non-woven fabric material (21) is wrinkled by using a shrinking driving wheel (34) and a plurality of wrinkling wheels (35); S2, the uncut elastic material (22) is flattened and fed into the production line by using an elastic material unwinding unit (42), the uncut elastic material (22) is kept at a stable conveying tension by using a tension control unit (31), the uncut elastic material (22) is conveyed by using a traction wheel (32) mechanism, a material slitting unit (36) is provided to slit the cut elastic material (222) of a desired width, a plurality of traction wheels are provided, and the speed difference between the plurality of traction wheels is adjusted so that the cut elastic material (222) forms a desired elastic stretching effect; S3, the lower non-woven fabric material (23) is flatly laid and fed into the production line by using the lower non-woven fabric unwinding unit (43), and the lower non-woven fabric material (23) is kept at a stable conveying tension by using the tension control unit (31). During the process, the lower non-woven fabric material (23) is conveyed by using mechanisms such as a traction wheel (32) and a tension swing rod (33), and a shrinking driving wheel (34) and a plurality of pleating wheels (35), so that the lower non-woven fabric material (23) forms a pleated effect; S4, the three layers of material, namely, the upper non-woven fabric material (21), the cut elastic material (222) and the lower non-woven fabric material (23), are compounded in an ultrasonic unit (37), the ultrasonic bottom roller is arranged in a regular or irregular pattern, and the three layers of material are welded by the ultrasonic unit (37), and the composited whole material is the multi-directional elastic fabric (24); S5, the multi-directional elastic fabric (24) is transported by means of a traction wheel (32) mechanism, the multi-directional elastic fabric (24) is cut according to a required width by means of a material cutting unit (36), the multi-directional elastic fabric (24) is transported by means of a traction wheel (32) mechanism, and the multi-directional elastic fabric (24) is subjected to a static elimination treatment by means of a static elimination unit (38); S6, the multi-directional elastic fabric (24) uses the tension control unit (31) to control the tension of the multi-directional elastic fabric (24); S7, using a flattening tension wheel (39) to process the flatness of the multi-directional elastic fabric (24); S8, using the static elimination unit (38) to perform static elimination on the multi-directional elastic fabric (24), and then entering the winding unit (44), and winding the multi-directional elastic fabric (24) into a roll material (25) with a certain range of winding diameter under the required and stable tension; In the step S1, a shrinking driving wheel (34) is used to pre-form a certain degree of wrinkling effect on the upper non-woven fabric material (21), and a wrinkling wheel (35) is used to sandwich the upper non-woven fabric material (21) between the wrinkling wheels (35) to form a greater degree of wrinkling effect; In the step S2, the cut elastic material (222) is input, and by setting a traction wheel 1 (321), a traction wheel 2 (322), and a traction wheel 3 (323), and utilizing the speed difference between the traction wheel 1 (321), the traction wheel 2 (322), and the traction wheel 3 (323), the cut elastic material (222) forms a desired elastic stretching effect; In the step S3, the lower non-woven fabric material (23) is pre-creased to a certain extent by using the contraction driving wheel (34), and the lower non-woven fabric material (23) is sandwiched between the creasing wheels (35) to form a greater degree of creasing effect by using the creasing wheels (35); In step S4, the ultrasonic bottom roller is arranged in a regularly arranged or irregularly arranged pattern, and multi-directional elasticity is formed by designing the arrangement of the pattern pressure points, including the size of the pattern pressure points and the horizontal and vertical distances.

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