CN111956399A

CN111956399A - Disposable absorption article

Info

Publication number: CN111956399A
Application number: CN202010994027.2A
Authority: CN
Inventors: 王添辉; 谢锡佳; 利莉; 梁倩儿
Original assignee: Guangdong Cojin Co ltd
Current assignee: Guangdong Cojin Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2020-11-20

Abstract

The invention relates to a disposable absorption article, which mainly solves the problems of poor comfort and poor leakage-proof effect of the absorption article in the prior art, and comprises an absorption body, wherein two sides of the absorption body in the longitudinal direction are respectively provided with a leakage-proof separation edge, each leakage-proof separation edge comprises a connecting part and a telescopic part, one end of each telescopic part, which is far away from the connecting part, is defined as a free end, one end of each telescopic part, which is close to the connecting part, is defined as a connecting end, each telescopic part comprises a first coating layer and a second coating layer coated outside the first coating layer, at least two elastic shrinkage materials are arranged in the first coating layer side by side in the longitudinal direction, the longitudinal two ends of each elastic shrinkage material are respectively and fixedly connected with the inner surface of the first coating layer, the outer end of the free end of the first coating layer is connected with the inner end of the free end of the second.

Description

Disposable absorption article

Technical Field

The present invention relates to a disposable absorbent article.

Background

Disposable absorbent articles, such as feminine sanitary napkins, adult incontinence diapers, disposable diapers, training diapers, and the like, are well known. The primary function of such disposable absorbent articles is to absorb and contain bodily waste, and such articles are also used to prevent the bodily waste from soiling, wetting, or otherwise contaminating the clothing or other articles that come into contact with the wearer.

In order to prevent leakage of bodily waste from both lateral sides of the disposable absorbent article, leakage barriers are generally provided on both lateral sides of the absorbent article. At present, referring to fig. 1, most of the leakproof isolation boundaries of the paper diaper are adhered to the middle part of the width direction of a water-repellent non-woven fabric 2 'by spraying glue on an elastic shrinkage material 1', then the elastic shrinkage material 1 'is wrapped by folding and adhering one side of the water-repellent non-woven fabric 2' compounded with the elastic shrinkage material 1 ', two edges of the folded water-repellent non-woven fabric which are positioned on the same side are respectively adhered and connected with a liquid-impermeable bottom layer 3' and a liquid-permeable surface layer 4 ', and the other edge containing a folding line forms a free edge 5', because the elastic shrinkage material 1 'is positioned on the free edge 5', the elastic shrinkage material 1 'shrinks to drive the water-repellent non-woven fabric 2' to gather and shrink towards the middle part when being worn, so that the elastic shrinkage material is attached; as the leakage-proof separation edge of the prior sanitary towel, the Chinese patent application number: 01120720.5, which discloses the structure of the leakage-proof side wall (i.e. the leakage-proof partition) in detail, the elastic expansion material is made of spandex filament with the fineness of several hundred denier or elastic rubber band. Aforementioned leak protection separates limit, owing to spout gluey cladding elastic shrinkage material through water repellent non-woven fabrics, and elastic shrinkage material distributes on free limit, make the hardness that forms the free limit on leak protection separates the limit great relatively, and elastic shrinkage material is directly attached on skin at shrink in-process, make the aggravation along with the user removes when using, arouse user's discomfort, and simultaneously, the leak protection of this kind of structure separates the limit in order to make the fine attached skin on free limit on leak protection separates the limit, its elastic shrinkage material's contractility is better, make the aggravation along with the user removes when using, the free limit on leak protection separates the limit can inwards move, thereby it is poor to cause the leak protection effect.

Disclosure of Invention

Therefore, in order to solve the problems, the invention provides a disposable absorption article which mainly solves the problems of poor comfort and poor leakage-proof effect of the absorption article in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a disposable absorption article comprises an absorption body, the absorption body is defined to extend along the length direction of the absorption body into a longitudinal direction, the absorption body extends along the width direction of the absorption body into a transverse direction, the absorption body comprises a liquid-permeable surface layer, a liquid-impermeable bottom layer and an absorption core layer arranged between the liquid-permeable surface layer and the liquid-impermeable bottom layer and used for absorbing and keeping excretion liquid, leak-proof separation edges are arranged on two sides of the longitudinal direction of the absorption body, each leak-proof separation edge comprises a connecting part and a telescopic part, one end of each connecting part is connected with the absorption body, the other end of each connecting part is arranged on the other end of each connecting part, the telescopic part shrinks along the length direction of the absorption body to enable the connecting part to stand up, one end, far away from the connecting part, of each telescopic part is defined to be a free end, one end, close to the connecting part is a connecting end, the telescopic part comprises a first covering, the two longitudinal ends of the elastic shrinkage material are fixedly connected with the inner surface of the first coating layer respectively, the outer end edge of the free end of the first coating layer is connected with the inner end edge of the free end of the second coating layer through a joint part, and the connecting end of the second coating layer is connected with the connecting part.

Furthermore, 1 to 3 rows of welding points which are distributed along the longitudinal direction are formed between two adjacent elastic shrinkage materials on the first coating layer through ultrasonic welding or hot pressing.

Further, the transverse width dimension of the joint part is 2mm to 15 mm.

Further, the engaging portion has a transverse width dimension of 6 mm.

Furthermore, first opening has been seted up along longitudinal direction to the free end of first cladding for the first cladding that is located first opening part forms first upside edge and first downside edge, the second opening has been seted up along longitudinal direction to the free end of second cladding, makes the second cladding that is located the second opening part form second upside edge and second downside edge, the junction includes upper strata and lower floor, the horizontal both ends of upper strata are followed with first upside respectively and are followed with the second upside and be connected, the horizontal both ends of lower floor are followed with first downside respectively and are connected, upper strata and lower floor's stromatolite bonding.

Furthermore, a third opening is formed in the connecting end of the second coating layer along the longitudinal direction, so that the second coating layer located at the third opening forms a third upper side edge and a third lower side edge, the connecting portion comprises a first portion and a second portion, one end of the first portion is connected with the third upper side edge, one end of the second portion is connected with the third lower side edge, and the first portion and the second portion are bonded in a laminated mode.

By adopting the technical scheme, the invention has the beneficial effects that: the disposable absorption article comprises a connecting part and a telescopic part, wherein the telescopic part comprises an elastic shrinkage material, a first coating layer coated outside the elastic shrinkage material and a second coating layer coated outside the first coating layer, glue is not arranged between the elastic shrinkage material and the first coating layer and between the first coating layer and the second coating layer for compounding, so that the elastic shrinkage material has good shrinkage effect, the longitudinal shrinkage of the first coating layer and the second coating layer is driven to be in a bulk state, in the actual use process, the free end of the leakage-proof edge can be well attached to skin, the arrangement of a joint part is added, the area can be attached to the skin when the elastic shrinkage material shrinks, the leakage-proof effect of the leakage-proof edge is improved, meanwhile, the gluing area is not in direct contact with the skin, and the leakage-proof edge in the bulk state is formed to be in contact with the skin, the preparation process can be slightly improved on the existing production line so as to be put into production, reduce the input cost and simultaneously improve the comfort and the leakage resistance of the leakage-proof separation edge; further, lie in adjacent two on the first cladding layer form along longitudinal distribution's 1 to 3 rows of bonding points through ultrasonic bonding or hot pressing between the elastic shrinkage material to restriction elastic shrinkage material's dislocation removes, makes elastic shrinkage material can be better along its horizontal shrink, and it is effectual to contract, further promotes the adhesion nature of leak protection separation limit and skin, improves travelling comfort and leak protection nature greatly.

Drawings

FIG. 1 is a schematic cross-sectional view of a leakproof isolation boundary in the prior art;

FIG. 2 is a schematic perspective view of a first embodiment of the present invention;

FIG. 3 is a schematic top view of the first embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view at A in FIG. 3;

FIG. 5 is a schematic perspective view of a first embodiment of the present invention;

FIG. 6 is a schematic cross-sectional flow structure diagram according to a first embodiment of the present invention;

FIG. 7 is a schematic sectional view of a leakproof isolation margin in the second embodiment of the invention.

Detailed Description

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

The embodiment of the invention is as follows:

the first embodiment is as follows:

referring to fig. 2, 3 and 4, a disposable absorbent article in this embodiment is a diaper, including a diaper body 100 defined as a longitudinal direction extending along a length direction of the diaper body 100 and a transverse direction extending along a width direction thereof, the diaper body 100 includes a liquid-permeable surface layer 110, a liquid-impermeable bottom layer 120, and an absorbent core layer 130 disposed between the liquid-permeable surface layer 110 and the liquid-impermeable bottom layer 120 for absorbing and maintaining excretory fluid, the diaper body 100 includes a front waist region 10, an absorbent region 20 and a rear waist region 30 in sequence along the longitudinal direction, elastic bands 40 are disposed between the absorbent core layer 130 and the liquid-impermeable bottom layer 120 in the transverse direction on the front waist region 10 and the rear waist region 30 side by side along the transverse direction, the liquid-permeable surface layer 110 is a hydrophilic non-woven fabric, the absorbent core layer 130 includes a core 131 formed by mixing a high polymer material and a pulp fiber, and a non-woven fabric 132 wrapping the core 131, the liquid-tight bottom layer 120 is formed by compounding an air-permeable PE film 121 and a hydrophobic non-woven fabric 122, leak-proof separation edges 50 are arranged on two sides of the diaper body 100 in the longitudinal direction, each leak-proof separation edge 50 comprises two rubber strings 2 and a water-repellent non-woven fabric 1 wrapping the outer side of each rubber string 2, each water-repellent non-woven fabric 1 comprises a connecting portion 510 with one end connected with the diaper body 100 and an expansion portion 520 arranged at the other end of the connecting portion 510 and contracted along the length direction of the diaper body 100 to enable the connecting portion 510 to stand up, one end, far away from the connecting portion 510, of the expansion portion 520 is defined as a free end k, one end, close to the connecting portion 510, of the expansion portion 520 is a connecting end m, each expansion portion 520 comprises a first wrapping layer 521 and a second wrapping layer 522 wrapping the first wrapping layer 521, the two rubber strings 2 are arranged in the first wrapping layer 521 side by side in the longitudinal direction, the outer end edge of the free end k of the first cladding layer 521 is connected with the inner end edge of the free end k of the second cladding layer 522 through a joint part 530, the transverse width dimension of the joint part 530 is 2 mm-15 mm, preferably 6mm, and the connecting end m of the second cladding layer 522 is connected with the connecting part 510.

Of course, the connecting portion 510, the first cladding layer 521, the second cladding layer 522 and the joint portion 530 are of an integral structure.

In this embodiment, the free end k of the first cladding layer 521 is opened with a first opening 3 along the longitudinal direction, so that the first cladding layer 521 located at the first opening 3 forms a first upper edge 523 and a first lower edge 524, the free end k of the second cladding layer 522 is opened with a second opening 4 along the longitudinal direction, so that the second cladding layer 522 located at the second opening 4 forms a second upper edge 525 and a second lower edge 526, the joint 530 includes an upper layer 531 and a lower layer 532, both lateral ends of the upper layer 531 are respectively connected with the first upper edge 523 and the second upper edge 525, both lateral ends of the lower layer 532 are respectively connected with the first lower edge 524 and the second lower edge 526, the upper layer 531 and the lower layer 532 are laminated and bonded, the connecting end m of the second cladding layer 522 is opened with a third opening 5 along the longitudinal direction, so that the second cladding layer 522 located at the third opening 5 forms a third upper edge 527 and a third lower edge 528, the connecting portion 510 includes a first portion 511 and a second portion 512, one end of the first portion 511 is connected to the third upper edge 527, one end of the second portion 512 is connected to the third lower edge 528, and the first portion 511 and the second portion 512 are laminated and bonded.

Therefore, the water-repellent nonwoven fabric 1 is composed of the first portion 511, the third upper edge 527, the second upper edge 525, the first upper edge 523, the first lower edge 524, the second lower edge 526, the third lower edge 528, and the second portion 512 in this order in the developed state.

Referring to fig. 5 and 6, the method for preparing the leakproof isolation margin 50 comprises the following steps:

1) unreeling the processed rolled water-repellent non-woven fabric 1, defining that the unreeling conveying direction of the water-repellent non-woven fabric 1 extends to a longitudinal direction Y and the width direction of the water-repellent non-woven fabric extends to a transverse direction X;

2) unreeling two processed roll-shaped rubber bands 2 to form side-by-side conveying, wherein the stretching ratio of the rubber bands 2 is 1.5 times, spraying glue to the rubber bands 2 at intervals through a spray gun, compounding the rubber bands 2 on the water-repellent non-woven fabric 1, a compounding area a is positioned in the transverse middle of the water-repellent non-woven fabric 1, a glue spraying compounding area is a first glue applying area b, the distance between the upper end edges of two adjacent first glue applying areas b in the longitudinal direction Y is the length size of a single leakage-proof partition edge, one surface, which is compounded with the rubber bands 2, of the water-repellent non-woven fabric 1 is defined as a front surface e, the other surface, which is opposite to the front surface, of the water-repellent non-woven fabric 1, which is positioned on the transverse side of the rubber bands 2, is a left side area 11, and the other transverse side of the rubber;

3) continuously spraying glue on the left side area 11 of the front face e of the water-repellent non-woven fabric 1 and the position close to the rubber band 2 along the longitudinal direction through a spray gun, wherein the glue spraying area is a second glue applying area c, the transverse width dimension of the second glue applying area c is 2-15 mm, preferably 6mm, and then turning the water-repellent non-woven fabric 1 upwards along the boundary of the rubber band 2 and the right side area 12, wherein the turning line is a first turning line g, so that the left side area 11 and the right side area 12 of the water-repellent non-woven fabric 1 are in composite connection at the second glue applying area c;

4) the left side area 11 of the water-repellent non-woven fabric 1 is folded downwards along the boundary between the left side area 11 and the second glue applying area c, so that the back surface f of the second glue applying area c is attached to the back surface f of the left side area 11, the folding line is a second folding line h, and the second folding line h is attached to the front surface e of the right side area 12;

5) spraying glue on an area, which is not covered by the second glue applying area c, on the reverse side f of the left area 11 of the water-repellent non-woven fabric 1 through a spray gun, wherein the glue spraying area is a third glue applying area d, and then turning over the right area 12 of the water-repellent non-woven fabric 1 downwards along the boundary of the right area 12 and the second glue applying area c, wherein the turning line is a third turning line i, so that the reverse side f of the left area 11 of the water-repellent non-woven fabric 1 is in composite connection with the reverse side f of the right area 12 in the third glue applying area d;

6) the product of step 5 is slit along the longitudinal middle portion of the first glue application area b to form individual leakproof isolation margins 50.

The first glue applying area b is formed by fixedly connecting two rubber bands 2 with the inner surface of the first coating layer 521; the second glue applying area c is a laminated bonding position of an upper layer 531 and a lower layer 532; the third glue applying area d is a laminated and bonded part of the first part 511 and the second part 512.

Example two:

referring to fig. 7, the second embodiment is further improved on the basis of the first embodiment, and the technical features of the second embodiment are different from the first embodiment: lie in adjacent two on the first cladding layer 521 the rubber band 2 forms through ultrasonic bonding or hot pressing along longitudinal distribution's 1 row of bonding point 8 between to restriction rubber band 2's dislocation removes, makes rubber band 2 can be better along its horizontal shrink, and it is effectual to shrink, further promotes the adhesion nature of leak protection separation limit 50 with the skin, improves travelling comfort and leak protection nature greatly.

The working mode of the invention is as follows: the disposable absorbent article comprises a connecting part 510 and an expansion part 520, wherein the expansion part 520 comprises a rubber band 2, a first coating layer 521 coated outside the rubber band 2 and a second coating layer 522 coated outside the first coating layer 521, glue is not arranged between the rubber band 2 and the first coating layer 521 and between the first coating layer 521 and the second coating layer 522 for compounding, so that the rubber band 2 has good contraction effect, the longitudinal contraction of the first coating layer 521 and the second coating layer 522 is driven to be in a loose state, in the actual use process, the free end k of the leakage-proof separation edge 50 can be well attached to skin, the arrangement of the joint part 530 is added, the area can be attached to the skin when the rubber band 2 is contracted, the leakage-proof effect of the leakage-proof separation edge 50 is improved, meanwhile, the glue applying area is not in direct contact with the skin, and the leakage-proof separation edge 50 in the loose state is formed to be in contact with the skin, increase its compliance to reduce the attached influence on the skin in great region, improve the travelling comfort of using, thereby this preparation technology can carry out less improvement on current production line and put into production, reduces the input cost, promotes the travelling comfort and the leak protection of leak protection flange 50 simultaneously.

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 disposable absorption article, includes the absorption body, and the definition extends for longitudinal direction along the length direction of absorption body, extends for transverse direction along its width direction, the absorption body includes liquid-permeable surface course, liquid-tight nature bottom and sets up the absorption sandwich layer that is used for absorbing, keeps the excreta liquid between liquid-permeable surface course and liquid-tight nature bottom, follows the longitudinal direction both sides of absorption body all are equipped with the leak protection and separate limit, its characterized in that: the leak protection separates the limit and includes that one end and the connecting portion of absorbing body coupling and locate the other end of connecting portion and play the length direction shrink along absorbing the body and make the pars contractilis that connecting portion erect, and the one end of keeping away from connecting portion on the definition pars contractilis is the free end, and its one end that is close to connecting portion is the link, pars contractilis includes first cladding and cladding in the second cladding outside first cladding, be equipped with two at least elastic shrinkage materials side by side along longitudinal direction in the first cladding, the vertical both ends of this elastic shrinkage material respectively with the internal fixed surface of first cladding be connected, the outer end of the free end of first cladding is along being connected through the inner of joint portion with the free end of second cladding, the link and the connecting portion of second cladding are connected.

2. The disposable absorbent article of claim 1, wherein: the first coating layer is positioned between two adjacent elastic shrinkage materials and forms 1-3 rows of welding points distributed along the longitudinal direction through ultrasonic welding or hot pressing.

3. The disposable absorbent article of claim 1, wherein: the transverse width dimension of the joint part is 2 mm-15 mm.

4. The disposable absorbent article of claim 3, wherein: the transverse width dimension of the joint is 6 mm.

5. The disposable absorbent article of any of claims 1 to 4, wherein: first opening has been seted up along longitudinal direction to the free end of first cladding layer for the first cladding layer that is located first opening part forms first upside edge and first downside edge, the second opening has been seted up along longitudinal direction to the free end of second cladding layer, makes the second cladding layer that is located the second opening part form second upside edge and second downside edge, the joint portion includes upper strata and lower floor, the horizontal both ends of upper strata are followed with first upside respectively and are connected along with the second upside, the horizontal both ends of lower floor are followed with first downside respectively and are connected, upper strata and lower floor's stromatolite bonding.

6. The disposable absorbent article of claim 5, wherein: the third opening has been seted up along longitudinal direction to the link of second cladding layer for the second cladding layer that is located third opening forms third upside and follows with the third downside, connecting portion include first portion and second portion, the one end and the third upside of first portion are along being connected, the one end and the third downside of second portion are along being connected, first portion and the laminating bonding of second portion.