CN111821105B

CN111821105B - Breathable adult pull-up pants and production process thereof

Info

Publication number: CN111821105B
Application number: CN202010804714.3A
Authority: CN
Inventors: 陈美琴; 高亨瑶; 姜慧勇
Original assignee: Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd; Hengan China Hygiene Products Co Ltd
Current assignee: Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd; Hengan China Hygiene Products Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2022-02-15
Anticipated expiration: 2040-08-12
Also published as: CN111821105A

Abstract

The invention relates to the field of disposable sanitary products, in particular to breathable adult pull-up pants, which comprise a body, a front waistline and a rear waistline, wherein the rear waistline comprises an outer layer, a middle layer, an inner layer and an elastic rubber band, the elastic rubber band is clamped between the outer layer and the middle layer, the elastic rubber band is fastened with the outer layer and the middle layer, the lower end of the inner layer is lower than the lower end of the elastic rubber band, the inner layer and the middle layer are compounded and form a plurality of hot pressing parts, each hot pressing part extends along the vertical direction, when the elastic rubber band shrinks, the outer layer and the middle layer form outer folding bulges with consistent folding states, the inner layer forms inner folding bulges, the width of the inner folding bulges along the transverse direction at least covers two outer folding bulges, and a breathable channel is formed between two adjacent inner folding bulges. A breathable adult pull-up diaper solves the technical problems that the waistline part of the existing pull-up diaper is easy to generate a tightening mark and poor in breathability, and meanwhile provides a production process of the breathable adult pull-up diaper.

Description

Breathable adult pull-up pants and production process thereof

Technical Field

The invention relates to the field of disposable sanitary products, in particular to pneumatic adult pull-up pants and a production process thereof.

Background

At present, the waistline and the leg circumference of the existing adult pull-up pants are main stress bearing points of the pull-up pants, so the arrangement of the rubber roots at the two positions is generally more compact, such as Chinese patent application numbers: cn201920461106.x discloses an elastic waistline structure and pull-up pants provided with the same. This elastic waistline structure, including preceding waist and back waist, preceding waist is equipped with outer non-woven fabrics with the back waist outside, and the inboard is equipped with the inlayer non-woven fabrics, is equipped with the waist elastomer between outer non-woven fabrics and inlayer non-woven fabrics, and each elastomer is the arc at intervals setting each other, the elastomer in preceding waist and/or the back waist is the arc. Which discloses the general structure of prior pull-up pants.

Due to the dense arrangement of the oak roots and the large stress bearing, the two parts are often tied with the seal of the oak roots, and the skin is reddened or even inflamed under the condition of long-time tightening. Therefore, how to improve the tightening of the waist portion becomes a key part in the design of the pull-up diaper product.

Disclosure of Invention

Therefore, in order to solve the above problems, the present invention provides breathable adult pull-ups, which solves the technical problems of the prior pull-ups that the waist part is easy to generate the strangle mark and the breathability is poor, and also provides a production process of breathable adult pull-ups.

In order to achieve the purpose, the invention adopts the following technical scheme: a breathable adult pull-up diaper comprises a body, a front waistline and a rear waistline, wherein the front waistline and the rear waistline are arranged on the body, the rear waistline comprises an outer layer, a middle layer, an inner layer and an elastic rubber band, the elastic rubber band is clamped between the outer layer and the middle layer, the elastic rubber band is fastened with the outer layer and the middle layer in a stretching state in a gluing mode, the lower end of the inner layer is lower than the lower end of the elastic rubber band, the inner layer is compounded with the middle layer in an interval hot pressing mode and forms a plurality of hot pressing parts, each hot pressing part extends along the vertical direction, the width of each hot pressing part is smaller than 3mm, the width of the inner layer between every two adjacent hot pressing parts is more than 3 times of the width of the hot pressing part and is not smaller than 5mm, when the elastic band shrinks, the outer layer and the middle layer form outer folding bulges in a folding state, the inner layer forms inner folding bulges, and the inner folding bulges at least cover the two outer folding bulges along the width in the transverse direction, and a ventilation channel is formed between two adjacent inner crease bulges.

Further, the height of the inner crease bulge is not less than 2 mm.

Furthermore, the elastic rubber bands are linear, extend along the transverse direction of the body, and are distributed at intervals along the longitudinal direction of the body, and the number of the elastic rubber bands is 5-15.

Further, the elastic rubber band at the top is lower than the top of the outer layer, the difference value is larger than 1mm, the elastic rubber band at the bottom is higher than the bottom of the outer layer, and the difference value is larger than 10 mm.

Further, the inner layer between two adjacent hot pressing parts and the middle layer are compounded in a hot pressing mode to form a hot indentation, the upper end of the hot indentation is lower than the hot pressing part, the difference value is larger than 20mm, and the width of the hot indentation is smaller than 1 mm.

Furthermore, the middle layer is formed by the lower end of the outer layer turning inwards to cover the inner side of the outer layer, and the inner layer is formed by the upper end of the outer layer extending upwards and then turning inwards to cover the middle layer.

Furthermore, the outer layer is made of non-woven fabric, the softness of the outer layer is 3-5, the inner layer is made of non-woven fabric, the softness of the inner layer is 5-8, and the middle layer is made of porous air cushion material.

The invention discloses a production process of breathable adult pull-ups based on the same inventive concept, which comprises the following steps:

firstly, inputting an outer layer, inputting a plurality of elastic rubber strings at intervals, spraying glue, compounding the elastic rubber strings in the middle of the outer layer, and adopting a non-woven fabric material for the outer layer;

the second step, the lower end of the outer layer is folded and covered on the inner side of the outer layer to form a middle layer, and the middle layer covers all the elastic rubber bands;

thirdly, the upper end of the outer layer is folded and covered on the middle layer to form an inner layer, and all the elastic rubber bands are covered, so that an elastic waistline is formed;

fourthly, performing first hot pressing on the elastic waistline to enable the inner layer and the middle layer to be bonded to form hot pressing parts, wherein the width of each hot pressing part is less than 3mm, and the width of the inner layer between every two adjacent hot pressing parts is more than 3 times of the width of each hot pressing part and is not less than 5 mm;

and fifthly, carrying out second hot pressing on the elastic waistline to enable the inner layer and the middle layer to be partially bonded to form hot pressing marks, wherein each hot pressing mark is positioned between two adjacent hot pressing parts, the upper ends of the hot pressing marks are lower than the hot pressing parts, the difference is larger than 20mm, and the width of each hot pressing mark is smaller than 1 mm.

Further, the first hot pressing and the second hot pressing are both carried out by adopting a hot pressing device, the hot pressing device comprises a bracket, a hot pressing upper roller which is rotatably arranged on the bracket, and a cooling lower roller which is rotatably arranged on the bracket, the upper hot-pressing roller is provided with a positive integer of hot-pressing bulges, the lower cooling roller is provided with a positive integer of mounting grooves extending along the axial direction, one end of each mounting groove extends to cool the side surface of the lower roller, each mounting groove is U-shaped, and one end close to the opening is inwards collapsed to form a tightening part, a cooling pipe is arranged in the mounting groove, a low heat-conducting cushion layer is arranged between the cooling pipe and the mounting groove, the upper end of the cooling pipe is in arc transition with the surface of the lower cooling roller, an end cover used for clamping the cooling pipe is arranged on one side of the cooling lower roller, a gas distribution disc is arranged on one side of the end cover, and an end cover channel communicated with the gas distribution disc and the cooling pipe is arranged in the end cover.

Further, when the hot pressing device is used for carrying out the first hot pressing or the second hot pressing, the hot pressing upper roller is used for heating, and cold air is introduced into the cooling pipe, wherein the temperature of the cold air is 5-15 ℃.

By adopting the technical scheme, the invention has the beneficial effects that:

1. this scheme utilizes three-layer materials's structure setting, can effectively form the three-dimensional shaping of the pincher trees state of inlayer to make the inlayer when hugging closely the health, can provide soft contact sense, improve the travelling comfort of dressing, thereby alleviate the state of tightening of elasticity rubber band, can not influence the constraint effect of elasticity waistline to the waistline again. And the wrinkles of the inner layer form air-permeable passages between two adjacent wrinkles, thereby achieving effective air permeability. The setting of hot splenium in this scheme is a slight hot pressing structure in fact, and it can not influence outer layer basically, and such benefit can not influence outer pincher trees to keep interior pincher trees and outer pincher trees relatively independent, thereby realize better stereolithography effect. The outer layer and the middle layer can be bonded in a hot pressing mode, and the tight combination of the outer layer and the middle layer can be realized by utilizing the glue spraying amount during glue spraying of the elastic rubber band. The outer layer can be made of non-woven fabric with softness of 3-5, the inner layer is made of non-woven fabric with softness of 5-8, and the middle layer is made of porous air cushion material such as EVA foam and PU foam. The middle layer may actually be provided with air holes, which may be located at the positions covered by the inner folds.

2. The elastic rubber band of upper end is less than the top of outer layer, and the difference is greater than 1mm, and the elastic rubber band of lower extreme is higher than outer lower extreme, and the difference is greater than 10mm, and such setting prevents that the elastic rubber band from appearing at edge position, because the arch that interior pincher trees formed is comparatively faint to the influence that the rubber band at edge position can produce, produces the trace of reining in this position easily.

3. The arrangement of the hot indentation can realize the three-dimensional forming effect of the inner crease, and the arrangement can reduce the large-area contact and close contact of the waist and the inner layer, thereby improving the air permeability.

4. This scheme can adopt the middle level to turn over inwards by outer lower extreme and cover in outer inboard shaping, and the inlayer is turned over inwards after upwards extending by outer upper end and covers in the middle level shaping. The outer layer, the middle layer and the inner layer can be made of independent materials. The same material can be used with the outer and inner layers being integral, while the middle layer is a different material. Alternatively, other similar forms may be used.

5. The production process of the breathable adult pull-up diaper can realize the forming of the pull-up diaper with better breathability. The middle layer and the inner layer formed by folding the outer layer can effectively improve the smoothness of the process and save the cost. When actual processing, can also utilize the complex of different materials to realize, it belongs to conventional technology, wherein, through first hot pressing, second hot pressing, pressfitting respectively, aim at provides the indentation of both different hot pressing degrees, hot splenium and hot indentation promptly to make hot splenium and hot indentation produce different effects, thereby can make interior pincher trees produce stronger stereoeffect.

6. To the needs of first hot pressing and second hot pressing, this hot press unit's setting is in fact in order to destroy the hot pressing effect of bottom to guarantee inlayer and middle level effective complex, and guarantee can not produce stronger compound effect between skin and the middle level, thereby guarantee outer pincher trees and interior pincher trees independent, improve three-dimensional forming's effect. The low heat conduction cushion layer can be made of cork, nylon and the like, so that the heat conduction effect can be reduced, certain elasticity can be provided, and the better hot-press forming effect is ensured.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the back waist circumference;

FIG. 3 is a schematic view of the inner side of the back waist;

FIG. 4 is a schematic cross-sectional view of the rear waist circumference when worn;

FIG. 5 is a schematic view of the hot press apparatus;

fig. 6 is a schematic sectional view of the cooling lower roll.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 4, the embodiment provides a breathable adult pull-up diaper, including a main body 1, and a front waistline 2 and a rear waistline 3 disposed on the main body 1, where the rear waistline 3 includes an outer layer 31, a middle layer 32, an inner layer 33, and an elastic rubber band 34, the elastic rubber band 34 is clamped between the outer layer 31 and the middle layer 32, the elastic rubber band 34 is fastened with the outer layer 31 and the middle layer 32 in a stretched state by means of gluing, the lower end of the inner layer 33 is lower than the lower end of the elastic rubber band 34, the inner layer 33 is compounded with the middle layer 32 by means of interval hot pressing to form a plurality of hot pressing portions 35, each hot pressing portion 35 extends vertically, the width of each hot pressing portion 35 is less than 3mm, the width of the inner layer between two adjacent hot pressing portions 35 is more than 3 times the width of the hot pressing portion 35 and is not less than 5mm, the inner layer between two adjacent hot pressing portions 35 forms a hot indentation 36 with the middle layer by means of hot pressing, the upper end of the hot indentation 36 is lower than the hot pressing part 35, the difference is larger than 20mm, and the width of the hot indentation is smaller than 1 mm. The setting of the hot pressing portion and the hot indentation may be performed according to actual requirements, which is not necessary, but is for achieving better wearing effect and three-dimensional forming effect. When the elastic rubber band shrinks, the outer layer 31 and the middle layer 32 form outer crease bulges 37 with consistent crease states, the inner layer 33 forms inner crease bulges 38, the width of the inner crease bulges 38 along the transverse direction at least covers two outer crease bulges 37, and an air-permeable channel 39 is formed between two adjacent inner crease bulges 38. The inner crease projections 38 have a projection height of not less than 2 mm. The elastic rubber bands 34 are linear, extend along the transverse direction of the body 1, and are distributed at intervals along the longitudinal direction of the body 1, and the number of the elastic rubber bands 34 is 5-15, and the elastic rubber bands can be set according to actual needs. The elastic rubber band 34 at the uppermost end is lower than the uppermost end of the outer layer, the difference value is larger than 1mm, the elastic rubber band at the lowermost end is higher than the lowermost end of the outer layer, and the difference value is larger than 10 mm.

Wherein fig. 4 is a view showing a state in which the inner corrugation lobes are compressed to achieve collapse when worn, wherein an air-permeable passage 39 is formed between two adjacent inner sheets, and an air-permeable passage 39' is also formed in the middle of the inner corrugation lobes after compression. In practice, the front waist circumference can adopt the back waist circumference with the same structure, and can also adopt other structural forms. The previous adhesion strength of the inner layer and the middle layer by the hot embossing is weak, which is actually to achieve the effect of three-dimensional molding, and the hot embossing may be intermittent. The pre-adhesion strength of the inner and middle layers achieved by the hot-pressed portion is also weak, stronger than that of the hot-pressed portion, but does not destroy the material structure of the outer layer.

Referring to fig. 5 and 6, the first hot pressing and the second hot pressing are both performed by using a hot pressing device, the hot pressing device includes a support, an upper hot pressing roller 4 rotatably disposed on the support, and a lower cooling roller 5 rotatably disposed on the support, the upper hot pressing roller 4 is provided with a positive integer of hot pressing protrusions 41, the lower cooling roller 5 is provided with a positive integer of mounting grooves 51 extending in an axial direction, one end of each mounting groove 51 extends to cool the side surface of the lower roller, the mounting groove 51 is U-shaped, and one end close to the opening is inwardly collapsed to form a tightening portion 52, the mounting groove 51 is internally provided with a cooling pipe 53, a low thermal conductive pad 54 is disposed between the cooling pipe 53 and the mounting groove 51, the upper end of the cooling pipe 53 is in arc transition with the surface of the lower cooling roller 5, one side of the lower cooling roller 5 is provided with an end cover 55 for clamping the cooling pipe 53, the air distribution plate 56 is arranged on one side of the end cover 55, and an end cover channel 551 for communicating the air distribution plate 56 with the cooling pipe 53 is arranged in the end cover 55. When the hot-pressing device is used for carrying out the first hot pressing or the second hot pressing, the hot-pressing upper roller is used for heating, and cold air is introduced into the cooling pipe, wherein the temperature of the cold air is 5-15 ℃.

The production process of the breathable adult pull-up diaper can realize the forming of the pull-up diaper with better breathability. The middle layer and the inner layer formed by folding the outer layer can effectively improve the smoothness of the process and save the cost. When actual processing, can also utilize the complex of different materials to realize, it belongs to conventional technology, wherein, through first hot pressing, second hot pressing, pressfitting respectively, aim at provides the indentation of both different hot pressing degrees, hot splenium and hot indentation promptly to make hot splenium and hot indentation produce different effects, thereby can make interior pincher trees produce stronger stereoeffect. To the needs of first hot pressing and second hot pressing, this hot press unit's setting is in fact in order to destroy the hot pressing effect of bottom to guarantee inlayer and middle level effective complex, and guarantee can not produce stronger compound effect between skin and the middle level, thereby guarantee outer pincher trees and interior pincher trees independent, improve three-dimensional forming's effect. The low heat conduction cushion layer can be made of cork, nylon and the like, so that the heat conduction effect can be reduced, certain elasticity can be provided, and the better hot-press forming effect is ensured.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a gas permeability adult pull-up diaper, includes the body and locates preceding waistline, back waistline on the body, its characterized in that: the back waistline comprises an outer layer, a middle layer, an inner layer and an elastic rubber band, wherein the elastic rubber band is clamped between the outer layer and the middle layer, the elastic rubber band is fastened with the outer layer and the middle layer in a stretching state in a gluing mode, the lower end of the inner layer is lower than the lower end of the elastic rubber band, the inner layer is compounded with the middle layer in a spaced hot pressing mode to form a plurality of hot pressing parts, each hot pressing part extends along the vertical direction, the width of each hot pressing part is smaller than 3mm, the width of the inner layer between every two adjacent hot pressing parts is more than 3 times of the width of the hot pressing part and is not smaller than 5mm, when the elastic rubber band shrinks, the outer layer and the middle layer form outer folding bulges in a consistent folding state, the inner layer forms inner folding bulges, the width of the inner folding bulges along the transverse direction at least covers the two outer folding bulges, an air permeable channel is formed between every two adjacent inner folding bulges, and the inner layer between every two adjacent hot pressing parts forms a hot indentation with the middle layer in a hot pressing mode, the upper end of the hot indentation is lower than the hot pressing part, and the difference value between the upper end of the hot indentation and the hot pressing part is larger than 20 mm.

2. A breathable adult pull-up pant according to claim 1, wherein: the height of the inner crease bulge is not less than 2 mm.

3. A breathable adult pull-up pant according to claim 1, wherein: the elastic rubber bands are linear, extend along the transverse direction of the body, and are distributed at intervals along the longitudinal direction of the body, and the number of the elastic rubber bands is 5-15.

4. A breathable adult pull-up pant according to claim 3, wherein: the elastic rubber band at the uppermost end is lower than the uppermost end of the outer layer, the difference value is larger than 1mm, the elastic rubber band at the lowermost end is higher than the lowermost end of the outer layer, and the difference value is larger than 10 mm.

5. A breathable adult pull-up pant according to any one of claims 1 to 4, wherein: the width of the hot indentation is less than 1 mm.

6. A breathable adult pull-up pant according to any one of claims 1 to 4, wherein: the middle layer is formed by inward folding the lower end of the outer layer and covering the inner side of the outer layer, and the inner layer is formed by upward extending the upper end of the outer layer and then inward folding the upper end of the outer layer and covering the middle layer.

7. A breathable adult pull-up pant according to any one of claims 1 to 4, wherein: the outer layer is made of non-woven fabric, the softness of the outer layer is 3-5%, the inner layer is made of non-woven fabric, the softness of the inner layer is 5-8%, and the middle layer is made of porous air cushion material.

8. A breathable adult pull-up pant according to any one of claims 1 to 4, wherein: the body is produced by the following steps,

9. The process of claim 8 for making breathable adult pull-ups, wherein: the first hot pressing and the second hot pressing are both carried out by adopting a hot pressing device, the hot pressing device comprises a bracket, an upper hot pressing roller which is rotatably arranged on the bracket, and a lower cooling roller which is rotatably arranged on the bracket, the upper hot-pressing roller is provided with a positive integer of hot-pressing bulges, the lower cooling roller is provided with a positive integer of mounting grooves extending along the axial direction, one end of each mounting groove extends to cool the side surface of the lower roller, each mounting groove is U-shaped, and one end close to the opening is inwards collapsed to form a tightening part, a cooling pipe is arranged in the mounting groove, a low heat-conducting cushion layer is arranged between the cooling pipe and the mounting groove, the upper end of the cooling pipe is in arc transition with the surface of the cooling lower roller, an end cover used for clamping the cooling pipe is arranged on one side of the cooling lower roller, a gas distribution disc is arranged on one side of the end cover, and an end cover channel communicated with the gas distribution disc and the cooling pipe is arranged in the end cover.

10. The process of claim 9 for making breathable adult pull-ups, wherein: when the hot-pressing device is used for carrying out the first hot pressing or the second hot pressing, the hot-pressing upper roller is used for heating, and cold air is introduced into the cooling pipe, wherein the temperature of the cold air is 5-15 ℃.