WO2016058514A1

WO2016058514A1 - Production process for breast pad and obtained breast pad thereby

Info

Publication number: WO2016058514A1
Application number: PCT/CN2015/091813
Authority: WO
Inventors: 叶正瑜
Original assignee: 叶正瑜
Priority date: 2014-10-15
Filing date: 2015-10-13
Publication date: 2016-04-21
Also published as: CN104223393B; CN104223393A

Abstract

A production process for a breast pad and a breast pad. A water absorbing layer comprises a plurality of single water absorbing bodies (3) arranged in a plurality of vertically spaced columns. The single water absorbing bodies (3) in the same column are vertically symmetrically distributed. The single water absorbing bodies (3) in the adjacent columns arranged oppositely of the circular arc parts (3-1) are staggered. The single water absorbing bodies (3) in the adjacent columns arranged oppositely of the radial line parts (3-2) are arranged in a spaced manner and in a transversely symmetrical manner. The radial line parts (3-2) of the single water absorbing bodies (3) at two side edges of the water absorbing layer in the length extending direction are distributed toward the outer side. A water guiding layer above each single water absorbing body (3) is paved. Along the periphery of each single water absorbing body (3), the waterproof layers and the water guiding layers are welded by ultrasonic or connected by melting to obtain an integrated belt shaped base material (4). The belt shaped base material (4) is folded along the central lines of clearances of adjacent columns arranged oppositely of the radial line parts (3-2) and each pair of breast pad half bodies (2) are vertically symmetrically folded, the side edges of the radial line parts (3-2) of each pair of folded breast pad half bodies (2) are welded by ultrasonic or connected by melting, shearing or integrally blanking according to the preset size of the periphery of each single water absorbing body (3) is conducted, thereby obtaining a plurality of finished breast pad products.

Description

Milk pad production method and breast pad obtained

Technical field

The invention relates to the technical field of breast pads, in particular to a method for producing a breast pad and a breast pad obtained therefrom.

Background technique

As shown in FIG. 1-2, Chinese Patent Publication No. CN202095548U discloses a disposable breast milk spill-proof pad (also referred to as a breast pad), comprising a body 5 having a circular, elliptical or regular polygon, passing along the center of the body. The mold forms the mouth 6 and bonds the slits to form a recess on one side of the body 5 to form a three-dimensional 3D shape, which is more suitable for the chest and is more comfortable to use.

The above prior art is disadvantageous in that, as shown in FIG. 3 or 4, a strip-shaped substrate 4 composed of a multi-layer laminate material (including at least a barrier layer (ie, a water repellent layer), a water absorbing layer, and a non-woven fabric moisture permeable layer ( That is, the water-conducting layer)) When cutting, it must be cut according to a circular or elliptical shape, resulting in a relatively high amount of waste generated after shearing, especially at the edge of the strip-shaped substrate, after being cut by a circle, on the edge. The area between the adjacent circles constitutes the scrap, the area. How to reduce the proportion of scraped scrap and improve material utilization under the premise of ensuring the quality of the breast pad is a technical problem in the field.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method for producing a milk pad having a simple step and a high material utilization rate (less waste) and a breast pad obtained.

In order to solve the above technical problems, the present invention provides a method for producing a breast pad comprising the following steps:

A. laying a water absorbing layer on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises a plurality of longitudinally arranged, parallel arranged plurality of semi-circular or substantially semi-circular water absorbing monomers; The bodies are symmetrically distributed along the arrangement direction, and the water absorbing monomers in the adjacent columns of the arc portions are alternately arranged, and the circular arc portions of the water absorbing monomers in any one column are projected in the adjacent columns along the arrangement direction. In the arc portion of the adjacent water absorbing monomer; the water absorbing monomers in the adjacent rows of the radial line portions are laterally symmetrical and arranged in phase (the spacing is according to the edge size of the desired breast pad product) Determining;) the radial line portions of the respective water absorbing monomers at both edges of the length direction of the water absorbing layer are distributed outward;

B. laying a water guiding layer or a waterproof layer above each water absorbing monomer, so that the water absorbing layer is between the water guiding layer and the waterproof layer; the waterproof layer and the water guiding layer are ultrasonically welded along the outer periphery of each water absorbing monomer or Thermally fused to obtain an integrated strip-shaped substrate; the water absorbing monomer and its peripheral, water-repellent layer and water-conducting layer connected to each other in a predetermined size to form a breast pad half;

C. Folding the substrate along the gap center line of the adjacent columns disposed opposite to the radial line portion, or stacking the two substrates on top of each other; forming a sheet of the substrate or stacking the two substrates on top of each other The upper and lower adjacent breast pad halves are vertically symmetrically stacked, and then ultrasonically welded or hot-melt welded along the edge of the radial portion of each pair of superposed breast pad halves; preferably, ultrasonic welding or After the hot melt connection, the edges of the radial portion of the water absorbing monomer in the upper and lower breast pad halves are closely adhered so that the edge gap of the two water absorbing monomers is substantially zero, thereby improving the water absorbing efficiency and effect.

D. Cut or integrally punch along a predetermined size of the outer periphery of each water absorbing monomer (or along the edge of each breast pad half) to obtain a plurality of breast pad products.

Further, the water absorbing monomer has a fan shape of 145 to 175 or substantially 145 to 175. After the pair of breast pad halves are welded and joined along the overlapping portion of the radial line portion, a breast pad is obtained, wherein the water absorbing layer forms two or one scalloped notches, and the notch can conveniently fold the breast pad into a cone shape. For ease of use.

Another method for producing a breast pad includes the following steps:

a water absorbing layer is disposed on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises a plurality of longitudinally parallel rows of a plurality of substantially semi-circular water absorbing monomers arranged in parallel; Symmetrically distributed, each of the water absorbing cells in the adjacent columns of the arc portions are arranged in a staggered manner, and the arc portions of the water absorbing cells in any one column can project adjacent water absorbing in the adjacent columns along the arrangement direction On the circular arc portion of the single body; each of the water absorbing monomers in the adjacent rows of the radial line portions are laterally staggered and disposed at the same time; the radial portions of the respective water absorbing monomers at both edges of the length direction of the water absorbing layer are Distributed to the outside;

c. stacking the two substrates on top of each other, and stacking the upper and lower adjacent pairs of breast pads The bodies are vertically symmetrically stacked, and then ultrasonically welded or thermally fused along the edges of the radial portions of each pair of stacked breast pad halves;

d. Cutting or integrally punching along a predetermined size of the outer periphery of each water absorbing monomer to obtain a plurality of breast pad finished products. The water absorbing monomer is substantially in the shape of a fan of 145°-175°; two or one scalloped notch is formed on the water absorbing layer in the breast pad.

The present invention still further provides a breast pad obtained by the above method for producing a breast pad.

The above technical solution of the present invention has the following advantages compared with the prior art: (1) The method for producing a breast pad of the present invention, wherein each of the water absorbing monomers in the adjacent columns of the arc portions are arranged in a staggered manner, and in any of the columns The circular arc portion of each water absorbing monomer can be projected on the circular arc portion of the adjacent water absorbing monomer in the adjacent column, and the radial portion of each water absorbing monomer at both side edges in the extending direction of the length of the water absorbing layer It is distributed to the outside, so that the substrate is fully utilized, and the problem that the gap between the arc portions of adjacent water absorbing monomers at the edge of the water absorbing layer is large and the waste is large is avoided, which saves the prior art. 20% of the substrate, and the narrower the width of the substrate, the higher the proportion of material saved. The spacing of the water absorbing monomers in the adjacent columns, and the spacing of the adjacent columns of the radial line portions, are determined according to the required edge size of the breast pad product, and may also be based on the outer periphery of the water absorbing layer in the milk pad product. The required size of the welded layer of the water guiding layer and the waterproof layer is determined. (2) the strip-shaped substrate is along the gap center line of the radial line portion of each of the adjacent breast halfs in the adjacent two columns, and the pair of upper and lower adjacent breast pad halves formed by folding are vertically symmetrically stacked, and then Ultrasonic welding or hot-melt connection is adopted along the edge of the radial portion of each pair of superimposed breast pad halves, and then cut to obtain a substantially circular breast pad product; the whole process can be fully automated, and the production efficiency is relatively high. The utility model has the advantages of high height and simple process, wherein the two water absorbing monomers are spliced into a substantially circular water absorbing layer, so that the water absorbing surface has a reasonable distribution and the water absorbing effect is consistent with the prior art, and the waterproof layer in the pair of breast pad halves is welded and connected. The waterproof effect is not affected. (3) The water absorbing monomer is substantially in the shape of a fan of 145°-175° (rotating the corresponding fan angle according to the required notch size), so that a fan-shaped gap is formed on the water absorbing layer in the obtained milk pad product, which is convenient The breast pad is tapered to facilitate use.

DRAWINGS

In order to make the content of the present invention easier to understand, the present invention will be further described in detail below with reference to the accompanying drawings

Figure 1 is a development view of a prior art breast pad;

Figure 2 is a schematic view showing the structure of the breast pad of Figure 1 in use;

3 is a schematic view showing a distribution of a prior art breast pad in shearing a substrate;

4 is a schematic view showing another distribution of a prior art breast pad in cutting a substrate;

Figure 5 is a schematic representation of a distribution of the substrate 4 and the breast pad half thereof.

Figure 6 is a schematic view of the breast pad half 2 of the present invention after being cut from the substrate of Figure 5;

Figure 7 is a schematic structural view of a breast pad 1 made in accordance with the present invention;

Figure 8 is a schematic view showing the outer structure of the water absorbing monomer 3 of the present invention;

Figure 9 is a schematic view showing the structure of another breast pad of the present invention;

Figure 10 is a schematic view showing the distribution of the substrate 4 of the present invention and the breast pad half 2 thereof.

Figure 11 is a schematic view showing a folding manner of the substrate 4;

Figure 12 is a schematic illustration of another manner of folding of the substrate 4.

detailed description

Example 1

10-12, the method for producing the breast pad of the embodiment includes the following steps:

A. laying a water absorbing layer on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises longitudinally multi-column, parallel along the length direction of the substrate 4 (the substrate 4 includes a waterproof layer and a water-conducting layer stacked one above another) A plurality of semi-circular or substantially semi-circular water absorbing monomers 3 are arranged; as shown in the figure, the water absorbing unit 3 includes a circular arc portion 3-1 and a radial line portion 3-2. The water absorbing monomers 3 in the same row are symmetrically distributed in the order of arrangement, and the water absorbing monomers 3 in the adjacent rows of the arc portions 3-1 are alternately arranged, and the circular arc portions of the water absorbing monomers 3 in any one of the columns are arranged. 3-1 can be projected in the arrangement direction on the circular arc portion 3-1 of the adjacent water absorbing monomer 3 in the adjacent column; the water absorbing monomers in the adjacent columns of the opposite diameter portions are laterally symmetrical and phase-to-phase Wherein, the pitch of each of the water absorbing cells in the adjacent rows of the radial line portions 3-2 and the spacing of the water absorbing cells in the adjacent rows of the arc portions 3-1 are alternately arranged, according to The edge size of the desired breast pad product (or the desired size of the solder layer of the water-conducting layer and the waterproof layer of the outer layer of the water-absorbing monomer 3) is determined; at both side edges of the length-extended direction of the water-absorbing layer (ie, two The radial portion of each water absorbing monomer at the edge of the long side is distributed outward; this avoids a large area of the gap 8 between the circular arc portions of adjacent water absorbing monomers at the edge of the water absorbing layer, resulting in waste More problems, compared to the prior art, can greatly save the substrate.

B. laying a water guiding layer or a waterproof layer above each water absorbing monomer, so that the water absorbing layer is between the water guiding layer and the waterproof layer; and the waterproof layer and the water guiding layer are arranged along the outer periphery of each water absorbing monomer by an ultrasonic welding process. Welded to obtain an integrated strip-shaped substrate; water absorbing monomer and its peripheral, preset size (a The water-repellent layer and the water-conducting layer connected to each other in the range of 0.35-1.2 cm) constitute a breast pad half.

C, as shown in FIG. 10-11, the gap center line 4-1 of the adjacent column disposed along the radial line portion (if the center line of the substrate 4 is also the gap center line of the adjacent column, then the Folding method), the strip-shaped substrate is folded, and the pair of upper and lower adjacent breast pad halves formed by folding are vertically symmetrical, and then ultrasonic waves are applied along the edges of the radial portions of each pair of superimposed breast pad halves. Welding or hot-melt connection; preferably, after ultrasonic welding or hot-melt bonding, the edges of the radial portion of the water absorbing monomer in the upper and lower breast pad half are closely adhered, so that the edge gap of the two water absorbing monomers is substantially Zero, which in turn improves water absorption efficiency and effectiveness.

D. Cutting or integrally punching along a predetermined size of the outer periphery of each water absorbing monomer to obtain a plurality of breast pad products.

As shown in Fig. 7, the water absorbing monomer is symmetrical along the center line of the breast pad and has a substantially 155° fan shape to form two scallops on the water absorbing layer in the obtained breast pad.

As another embodiment, as shown in FIG. 9, the water absorbing monomer has a substantially 175° sector shape. A pair of breast pad halves are stacked along the radius portion, and after being welded, a scalloped notch 7 is formed on the water absorbing layer in the obtained breast pad.

Example 2

As shown in FIG. 5, the breast pad half 2 in the substrate 4 adopts another distribution mode, and after cutting each of the breast pad halves 2, a pair of breast pad halves 2 are formed along the radial line portion. Solder into a finished breast pad.

Example 3

Based on the above embodiment 1, the difference in this embodiment is:

The two substrates are stacked one on top of the other, and the upper and lower adjacent breast pad halves formed by the stacking are superposed symmetrically up and down, and then ultrasonically welded along the edges of the radial portions of the pair of stacked breast pad halves. Or hot melt connection.

This step does not need to fold the substrate, and only needs to ensure that the material is set, and the steps of ultrasonic welding or hot-melt connection can be performed, which can further improve the production efficiency.

Example 4

A method for producing a breast pad, comprising the following steps:

a water absorbing layer is disposed on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises a plurality of longitudinally parallel rows of a plurality of substantially semi-circular water absorbing monomers arranged in parallel; Symmetrically distributed, each of the water absorbing cells in the adjacent columns of the arc portions are arranged in a staggered manner, and the arc portions of the water absorbing cells in any one column can be projected in the adjacent columns in the arrangement direction Adjacent to the circular arc portion of the adjacent water absorbing monomer; each of the water absorbing monomers in the adjacent rows of the radial line portions are laterally staggered and disposed between each other, as shown in FIG. 5; each of the water absorbing sheets at both edges of the length direction of the water absorbing layer The radial portion of the body is distributed outward;

c. stacking the two substrates on top of each other, and stacking the upper and lower adjacent breast pad halves formed by stacking up and down symmetrically, and then along the radial portion of each pair of stacked breast pad halves The edge is ultrasonically welded or hot melted;

d. Cutting or integrally punching along a predetermined size of the outer periphery of each water absorbing monomer to obtain a plurality of breast pad finished products.

The water absorbing monomer is substantially in the shape of a fan of 145°-175°; two or one scalloped notch is formed on the water absorbing layer in the breast pad.

Example 5

The present invention still further provides a breast pad obtained by the method for producing a breast pad of one of the above embodiments 1-4.

The breast pad obtained by the above-mentioned method for producing a breast pad comprises a water-conducting layer, a water-absorbing layer and a water-repellent layer which are sequentially stacked; the water-conducting layer is made of a cloth having a function of keeping itself dry and not wet, and the water-absorbing layer is adapted Made of a polymeric material that absorbs the function of the milk, the waterproof layer is made of a paper-plastic composite film having a liquid-permeable function.

It is apparent that the above-described embodiments are merely illustrative of the invention and are not intended to limit the embodiments of the invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations that come within the spirit of the invention are still within the scope of the invention.

Claims

A method for producing a breast pad, comprising the steps of:

A. laying a water absorbing layer on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises a plurality of longitudinally parallel rows of a plurality of substantially semi-circular water absorbing monomers arranged in parallel; Symmetrically distributed, each of the water absorbing cells in the adjacent columns of the arc portions are arranged in a staggered manner, and the arc portions of the water absorbing cells in any one column can project adjacent water absorbing in the adjacent columns along the arrangement direction On the circular arc portion of the single body; each of the water absorbing monomers in the adjacent rows of the radial line portions are laterally symmetrical and disposed at the same time; the radial portions of the respective water absorbing monomers at both edges of the length direction of the water absorbing layer are Distributed to the outside;

B. laying a water guiding layer or a waterproof layer above each water absorbing monomer, so that the water absorbing layer is between the water guiding layer and the waterproof layer; the waterproof layer and the water guiding layer are ultrasonically welded along the outer periphery of each water absorbing monomer or Thermally fused to obtain an integrated strip-shaped substrate; the water absorbing monomer and its peripheral, water-repellent layer and water-conducting layer connected to each other in a predetermined size to form a breast pad half;

C. Folding the substrate along the gap center line of the adjacent columns disposed opposite to the radial line portion, or stacking two substrates on top of each other; forming a substrate folded or two substrates stacked on top of each other Adjacent pairs of breast pad halves are vertically symmetrically stacked, and then ultrasonically welded or hot-melt welded along the edges of the radial portions of each pair of superposed breast pad halves;

D. Cutting or integrally punching along a predetermined size of the outer periphery of each water absorbing monomer to obtain a plurality of breast pad products.
The method of producing a breast pad according to claim 1, wherein the water absorbing monomer has a substantially fan shape of 145 to 175; and two or one scalloped notches are formed on the water absorbing layer in the breast pad.
A method for producing a breast pad, comprising the steps of:

a water absorbing layer is disposed on the waterproof layer or the water guiding layer; wherein the water absorbing layer comprises a plurality of longitudinally parallel rows of a plurality of substantially semi-circular water absorbing monomers arranged in parallel; Symmetrically distributed, each of the water absorbing cells in the adjacent columns of the arc portions are arranged in a staggered manner, and the arc portions of the water absorbing cells in any one column can project adjacent water absorbing in the adjacent columns along the arrangement direction On the circular arc portion of the single body; each of the water absorbing monomers in the adjacent rows of the radial line portions are laterally staggered and disposed at the same time; the radial portions of the respective water absorbing monomers at both edges of the length direction of the water absorbing layer are Distributed to the outside;

b. laying a water guiding layer or a waterproof layer above each water absorbing monomer, so that the water absorbing layer is between the water guiding layer and the waterproof layer; the waterproof layer and the water guiding layer are ultrasonically welded along the outer periphery of each water absorbing monomer or Thermally fused to obtain an integrated strip-shaped substrate; the water absorbing monomer and its peripheral, water-repellent layer and water-conducting layer connected to each other in a predetermined size to form a breast pad half;

c. stacking the two substrates on top of each other, and stacking the upper and lower adjacent breast pad halves formed by stacking up and down symmetrically, and then along the radial portion of each pair of stacked breast pad halves The edge is ultrasonically welded or hot melted;

d. Cutting or integrally punching along a predetermined size of the outer periphery of each water absorbing monomer to obtain a plurality of breast pad finished products.
The method of producing a breast pad according to claim 3, wherein the water absorbing monomer has a substantially fan shape of 145 to 175; and two or one scalloped notches are formed on the water absorbing layer in the breast pad.
A breast pad obtained by the method for producing a breast pad according to claim 1 or 4.
The breast pad according to claim 5, wherein the water absorbing monomer is substantially in the shape of a fan of 145°-175°; after the pair of breast pad halves are welded and joined along the overlapping portion, the obtained breast pad is Two or one fan-shaped notches are formed on the water absorbing layer.