Paper diaper leg circumference elastic rubber band applying process

Abstract

The invention provides a paper diaper leg circumference elastic rubber band applying process. The paper diaper leg circumference elastic rubber band applying process comprises the following steps that S1, a bottom-layer non-woven fabric material is flatly laid and fed into a production line by utilizing a bottom-layer non-woven fabric unwinding unit to keep stable conveying tension; s4, glue is applied to the bottom-layer non-woven fabric through a bottom-layer non-woven fabric glue gun, and a leg circumference elastic rubber band position is hollowed out in a glue applying area; s5, the leg circumference elastic rubber band is flatly laid and fed into a production line through a leg circumference elastic rubber band unwinding unit; s7, applying glue to the leg circumference elastic rubber band through a leg circumference elastic rubber band glue gun, wherein the leg circumference elastic rubber band adheres to the area where glue is applied on the bottom-layer non-woven fabric material; s8, a bottom film material is flatly laid and fed into a production line through a bottom film material unwinding unit; and S9, completing compounding of the bottom layer non-woven fabric material, the leg circumference elastic rubber band and the bottom film material. The paper diaper leg circumference elastic rubber band applying device realizes mechanical application of paper diaper leg circumference elastic rubber bands, and the manufacturing process is stable.

Description

Technical Field

[0001] The invention relates to the technical field of diaper preparation, and in particular to a process for applying elastic bands around diaper legs. Background Art

[0002] The structure of diapers currently sold on the market is that the elastic bands around the legs are set between the bottom film and the side leakage prevention layer. In this case, the product will be affected by this structure ( Figure 6 )’s impact.

[0003] The elastic band (23) around the leg is closer to the skin, which may cause the thigh to be squeezed;

[0004] The bottom non-woven fabric fixing glue (24) leaves a glue-free area to avoid the leg elastic band (23), which may cause the product to have a side leakage risk;

[0005] There will be obvious holes and bubbles at the end of the elastic waist (26), affecting the flatness of the product;

[0006] The side seal fixing glue (30) is very close to the leg elastic band (23), and the side seal fixing glue (30) cannot be adjusted to both sides, resulting in the height of the three-dimensional guard being limited;

[0007] The edge seal fixing glue (30) cannot be adjusted to increase the width to enhance the edge seal fixing strength, and there is also a risk of side leakage;

[0008] The elastic waist (26) and the elastic waist fixing glue (27) may interfere with the leg elastic band (23) in the stretching direction, and the ductility and flatness of the elastic waist (26) may be affected.

[0009] The depth of the attachment position of the rear ear (28) is limited, and the leg elastic band (23) is also affected by the rear ear fixing glue (29).

[0010] Therefore, we propose a process for applying elastic bands around the legs of diapers to solve the above problems. Summary of the invention

[0011] The present invention aims to provide a process for applying elastic bands around the legs of diapers to overcome the above problems or at least partially solve the above problems.

[0012] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0013] The present invention provides a process for applying elastic bands around the legs of diapers, comprising the following steps:

[0014] S1, the bottom non-woven fabric material is flattened and fed into the production line by using the bottom non-woven fabric unwinding unit to maintain a stable conveying tension, and the bottom non-woven fabric material is kept at a stable conveying tension by using the first tension control unit, and is conveyed by using the traction wheel 1;

[0015] S2, using the first 90° turning mechanism to transport the bottom nonwoven fabric material into the production line;

[0016] S3, using the first tension swing rod for conveying, and adjusting the center position and material tension of the bottom non-woven fabric material through the first deviation corrector and the second traction wheel;

[0017] S4, applying glue to the bottom non-woven fabric through a glue gun, leaving a space for the elastic band of the leg in the glue application area;

[0018] S5, the leg elastic band is flatly laid and fed into the production line by the leg elastic band unwinding unit;

[0019] S6, using the second 90° turning mechanism to transport the leg elastic band into the production line;

[0020] S7, applying glue to the leg elastic bands through a leg elastic band glue gun, and the leg elastic bands are adhered to the bottom non-woven fabric material to leave a glue application area;

[0021] S8, the bottom film material is flattened and fed into the production line by the bottom film material unwinding unit, the bottom film material is kept in a stable conveying tension by the second tension control unit, the bottom film material is conveyed by the traction wheel four and the second tension swing rod, and the center position and material tension of the bottom film material are adjusted by the deviation corrector two, the traction wheel five and the traction wheel six;

[0022] S9, the bottom non-woven fabric material, leg elastic band and bottom film material are laminated and transported to the rear end of the equipment through traction wheel three.

[0023] As a further solution of the present invention, in step S4, the bottom non-woven fabric glue gun applies glue on the bottom non-woven fabric, leaving a space for the leg elastic band in the glue application area, and the range of the left area is larger than the range of the leg elastic band, so as to prevent the leg elastic band from being interfered by the fixing glue of the bottom non-woven fabric.

[0024] As a further solution of the present invention, in step S7, the leg elastic band glue gun applies glue to the leg elastic band, and the leg elastic band is adhered to the empty area of ​​the bottom non-woven material for gluing. A certain length of glue is applied to the leg elastic band so that the leg elastic band can be attached to the empty area of ​​the bottom non-woven material for gluing.

[0025] As a further solution of the present invention, in step S9, the leg elastic band is sandwiched between two layers of material: the bottom non-woven fabric material and the bottom film material.

[0026] The present invention provides a process for applying elastic bands around the legs of diapers, which has the following beneficial effects:

[0027] The equipment has realized the mechanized process of applying elastic bands to the legs of diapers, which has a stable manufacturing process and solved the shortcomings of unreasonable structure and poor wearing experience of conventional products.

[0028] Enhance the wearing comfort between the product body and the user; eliminate the problem of product leakage; improve the flatness of the product; the height of the three-dimensional guard of the product can be adjusted according to needs; the depth of the back ear attachment position can be adjusted according to needs, and will not be interfered by the elastic band of the leg circumference. It solves the technical problems of existing products such as discomfort and structural limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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.

[0030] Figure 1 It is a process flow chart of the present invention.

[0031] Figure 2 It is a schematic diagram of the composite of the bottom nonwoven fabric, the leg elastic band and the bottom film in the present invention.

[0032] Figure 3 It is a schematic diagram of the top view of the diaper of the present invention.

[0033] Figure 4 It is a schematic diagram of the side structure of the diaper of the present invention.

[0034] Figure 5 It is a schematic diagram of the hierarchical structure of the diaper in the present invention.

[0035] Figure 6 It is a schematic diagram of the structure of existing diapers.

[0036] In the figure: 21, bottom non-woven fabric material; 22, bottom film material; 23, leg elastic band; 24, bottom non-woven fabric fixing glue; 25, leg elastic band fixing glue; 26, elastic waist; 27, elastic waist fixing glue; 28, back ear; 29, back ear fixing glue; 30, edge sealing fixing glue; 31, bottom non-woven fabric unwinding unit; 32, first tension control unit; 33, traction wheel one; 34, first 90° steering mechanism; 3 5. First tension swing rod; 36. Deviation corrector one; 37. Traction wheel two; 38. Bottom non-woven fabric glue gun; 39. Traction wheel three; 40. Leg elastic rubber band unwinding unit; 41. Second 90° steering mechanism; 42. Leg elastic rubber band glue gun; 43. Bottom film unwinding unit; 44. Second tension control unit; 45. Traction wheel four; 46. Second tension swing rod; 47. Deviation corrector two; 48. Traction wheel five; 49. Traction wheel six. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1 and Figure 2 The embodiment of the present invention provides a process for applying elastic bands around the legs of diapers, comprising the following steps:

[0039] S1, the bottom non-woven fabric material 21 is flattened and fed into the production line by the bottom non-woven fabric unwinding unit 31 to maintain a stable conveying tension, and the bottom non-woven fabric material 21 is kept at a stable conveying tension by the first tension control unit 32, and is conveyed by the traction wheel 1 33;

[0040] S2, using the first 90° turning mechanism 34 to transport the bottom nonwoven fabric material 21 into the production line;

[0041] S3, using the first tension swing rod 35 for conveying, adjusting the center position and material tension of the bottom non-woven fabric material 21 through the deviation correcting machine 1 36 and the traction wheel 2 37;

[0042] S4, glue is applied on the bottom non-woven fabric by the bottom non-woven fabric glue gun 38, and the position of the leg elastic band 23 is vacated in the glue application area, and the range of the vacated area is larger than the range of the leg elastic band 23, so as to prevent the leg elastic band 23 from being interfered by the bottom non-woven fabric fixing glue 24;

[0043] S5, the leg elastic band 23 is flatly laid and sent into the production line by the leg elastic band unwinding unit 40;

[0044] S6, using the second 90° steering mechanism 41 to transport the leg elastic band 23 into the production line;

[0045] S7, the leg elastic band 23 is glued by the leg elastic band glue gun 42, and the leg elastic band 23 is adhered to the empty glue application area on the bottom non-woven fabric material 21, and a certain length of glue is applied to the leg elastic band 23, so that the leg elastic band 23 can be attached to the empty glue application area on the bottom non-woven fabric material 21;

[0046] S8, the bottom film material 22 is flattened and fed into the production line by the bottom film material unwinding unit 43, the bottom film material 22 is kept in a stable conveying tension by the second tension control unit 44, the bottom film material 22 is conveyed by the traction wheel 45 four, the second tension swing rod 46 and other mechanisms, and the center position and material tension of the bottom film material 22 are adjusted by the deviation correcting machine 2 47, the traction wheel 5 48 and the traction wheel 6 49;

[0047] S9, the bottom non-woven material 21, the leg elastic band 23, and the bottom film material 22 are composited, and the leg elastic band 23 is sandwiched between the bottom non-woven material 21 and the bottom film material 22, and is transported to the rear end of the equipment through the traction wheel 39.

[0048] like Figure 3-6 As shown, a diaper is divided into a front waist area, a crotch area and a back waist area in the length direction, front ear stickers are provided on the left and right outer sides of the front waist area, a long front waist sticker is provided in the middle of the front waist area, back ears 28 matching and adhering to the front waist stickers are provided on the left and right outer sides of the back waist area, Velcro is adhered to the back ears 28, an elastic waist circumference 26 is provided in the middle of the back waist area, and the diaper comprises a bottom non-woven fabric, a bottom film, an absorbent body, and an upper non-woven fabric in the thickness direction from outside to inside, leg elastic bands are provided on the left and right outer sides of the crotch area, a side leakage prevention layer is adhered to the upper part of the upper non-woven fabric, a side leakage prevention edge is provided on the inner side of the side leakage prevention layer, and a side leakage prevention elastic band extending along the length direction is provided inside the side leakage prevention edge.

[0049] 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 process for applying elastic bands to the legs of diapers, characterized in that: The following steps are involved: S1, the bottom non-woven fabric material (21) is flattened and fed into the production line by using the bottom non-woven fabric unwinding unit (31) to maintain a stable conveying tension, and the bottom non-woven fabric material (21) is kept at a stable conveying tension by using the first tension control unit (32), and is conveyed by using the traction wheel (33); S2, using a first 90° turning mechanism (34) to transport the bottom nonwoven fabric material (21) into the production line; S3, using the first tension swing rod (35) for conveying, and adjusting the center position and material tension of the bottom non-woven fabric material (21) through the first deviation correcting machine (36) and the second traction wheel (37); S4, applying glue to the bottom non-woven fabric through the bottom non-woven fabric glue gun (38), leaving a space for the leg elastic band (23) in the glue application area; S5, the leg elastic band (23) is flatly laid and sent into the production line by the leg elastic band unwinding unit (40); S6, using the second 90° turning mechanism (41) to transport the leg elastic band (23) into the production line; S7, applying glue to the leg elastic band (23) through the leg elastic band glue gun (42), and the leg elastic band (23) is adhered to the bottom non-woven fabric material (21) to leave a glue application area; S8, the bottom film material (22) is flattened and fed into the production line by using the bottom film material unwinding unit (43), the bottom film material (22) is kept at a stable conveying tension by using the second tension control unit (44), the bottom film material (22) is conveyed by using the fourth traction wheel (45) and the second tension swing rod (46), and the center position and material tension of the bottom film material (22) are adjusted by using the second deviation correcting machine (47), the fifth traction wheel (48) and the sixth traction wheel (49); S9, the bottom non-woven fabric material (21), the leg elastic band (23), and the bottom film material (22) are laminated and transported to the rear end of the equipment via the traction wheel three (39).

2. A process for applying elastic bands to the legs of diapers according to claim 1, characterized in that: In step S4, the bottom non-woven fabric glue gun (38) applies glue to the bottom non-woven fabric, leaving a space for the leg elastic band (23) in the glue application area, and the range of the left space is larger than the range of the leg elastic band (23), so as to prevent the leg elastic band (23) from being interfered by the bottom non-woven fabric fixing glue (24).

3. A process for applying elastic bands to the legs of diapers according to claim 1, characterized in that: In the step S7, the leg elastic band glue gun (42) applies glue to the leg elastic band (23), and the leg elastic band (23) is adhered to the bottom non-woven fabric material (21) to leave a glue application area. A certain length of glue is applied to the leg elastic band (23), so that the leg elastic band (23) can be attached to the bottom non-woven fabric material (21) in the glue application area.

4. A process for applying elastic bands to the legs of diapers according to claim 1, characterized in that: In step S9, the leg elastic band (23) is sandwiched between two layers of material, namely, the bottom non-woven fabric material (21) and the bottom film material (22).

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