CN1481769A - Absorbent article - Google Patents

Abstract

The invention provides an absorbent article such as breast pad which can become half ball with heat treatment, avoids becoming hard and maintains a good shape. In the absorbent article, the main body is composed of the absorbent member absorbing the liquid and the waterproof material set outside of the absorbent member. The whole structure is approximately half ball by setting extendible material around the mainbody.

Description

Absorbing products

Technical field

The present invention relates to age of sucking mother and be clipped in the improvement of the absorbing products such as breast pad between underwears such as medicated bra and the breast.

Background technology

In the past, absorbing products for example breast pad form and be seen as hemispherical shape from the side.

Can closely wrap the such shape of breast front (not shown) of user when such breast pad being used, use mould molding in the past with hemispherical convex surface in order to make.

That is, after lamination formation constitutes the multilayer material of main body, be placed on above the former with bowl-shape inner face, the formpiston with hemispherical convex surface is descended, form breast pad while pressurize for the laminated construction main body.

Like this, the breast pad main body of heating forms hemispherical.

Summary of the invention

Therefore, in process for making, be deformed into hemispherical owing to must heat, for example the waterproof material of above-mentioned breast pad uses heat deformable material such as polyethylene lamination paper.

Therefore, harder as the breast pad overall thermal of goods distortion back texture, as the goods that directly contact with the skin of user, the sensation of skin may not be good.

And, even such breast pad as mentioned above thermal deformation form hemispherical, such machining shape retentivity is poor, in use flattens, and is inconsistent with the breast front shape of user, becomes not fit, produces position deviation.Therefore, breast milk can not be absorbed, and reveals and pollutes clothes.

The present invention finishes for solving such problem, the absorbing products that provides a kind of breast pad such is provided purpose, because not heat-treating integral body becomes hemispherical, prevent because the hardening of thermal deformation sense of touch, and use the caused sense of touch hardening of the heat treated material of adaptation, shape retention can be good.

Above-mentioned purpose realizes by absorbing products of the present invention, the structure of this absorbing products is as follows, promptly in absorbing products, lamination absorbs the absorber of liquid and forms main body at the waterproof material of this absorber arranged outside, by around aforementioned body, the retractility material being set, constitute integral body and roughly be hemispherical.

According to structure of the present invention, by around main body the retractility material being set, if along the direction that the retractility material the is set described part that stretches, peripheral part length that the retractility material is set of circular body shortens.Like this, the middle body of main body becomes along the outstanding shape of any direction, and main body just can become and the corresponding hemispherical of breast front shape like this.

Therefore, even not thermal deformation of material also can obtain the breast pad that shape is fit to udder shape.

And by the retractility material is set so around, the shape that forms hemispheric main body is typical circle, and is just positive circular, equally also can be in length and breadth length than the shape that does not have a great difference.For example, comprising such situation, promptly is the quadrangle of R shape or trapezoidal etc. in the bight, by part around the long retractility material of a plurality of length is set, because elasticity peripheral part girth of its retractility material shortens, forms hemispherical.

And here, so-called " hemispherical " or " semi-spherical shape " is meant along any cutting line by main center and cuts open, and the cross section all is the shape of the outstanding a part of circular arc of central authorities.

As mentioned above, according to the present invention, because the whole hemispherical that forms under the situation of not heat-treating can prevent the sense of touch hardening owing to thermal deformation, and use the caused sense of touch hardening of the heat treated material of adaptation, provide a kind of shape retention energy the good such absorbing products of breast pad.

Description of drawings

Fig. 1 is the concise and to the point axonometric chart according to breast pad embodiment of the present invention;

Fig. 2 is the breast pad inboard concise and to the point vertical view up that illustrates among Fig. 1;

Fig. 3 is the fragmentary cross sectional view that the C-C line in Fig. 2 is cut open;

Fig. 4 is the local amplification sectional view that the explanation user is put on the state of the breast pad among Fig. 1;

Fig. 5 is the key diagram that amplifies part shown in the symbol F that illustrates among Fig. 2;

Fig. 6 is the key diagram that illustrates with the comparative structure example of the structure of Fig. 5;

Fig. 7 is that the breast pad that illustrates among Fig. 1 is packed the concise and to the point axonometric chart that holds body separately;

Fig. 8 is the fragmentary cross sectional view that the independent packing in Fig. 7 is held the D-D line of body;

Fig. 9 holds independent packing among Fig. 7 of breast pad to hold fragmentary cross sectional view under the body doubled state;

Figure 10 is the brief configuration figure of the manufacturing installation of the breast pad among Fig. 1;

Figure 11 is the key diagram of an example that the doubling part-structure of the manufacturing installation among Figure 10 is shown;

Figure 12 is that the breast pad that illustrates among Fig. 1 is packed the concise and to the point vertical view of the independent technology of the package of a part of holding body separately;

Figure 13 is that the breast pad that illustrates among Fig. 1 is packed the concise and to the point vertical view of the independent technology of the package of a part of holding body separately;

Figure 14 is the amplification stereogram of the binding agent application process of the breast pad manufacturing installation among Figure 11;

Figure 15 is the key diagram of bonding part size in the binding agent application process of the breast pad manufacturing installation of Figure 11;

Figure 16 is the amplification stereogram of the pressing technology of the breast pad manufacturing installation among Figure 11.

The specific embodiment

Below, the most preferred embodiment that present invention will be described in detail with reference to the accompanying.

And, because the embodiment that is described below is a best specific embodiment of the present invention, technically carried out various ideal qualifications, but scope of the present invention then is not limited to such embodiment as long as be not particularly limited description of the invention in the following description.

Fig. 1 is the concise and to the point axonometric chart of seeing from as the inboard of the breast pad of absorbing products according to an embodiment of the invention, and Fig. 2 is the inboard vertical view up of breast pad; Fig. 3 is the sectional view that the C-C line in Fig. 2 is cut open.

With reference to these accompanying drawings, the structure of breast pad is described at first.

In the outside of breast pad shown in Figure 1 10 (below among Fig. 1) waterproof material 11 is set, the medial surface (upper side among Fig. 1) that contacts with the skin of user when dressing is provided with surfacing 13.

As shown in Figure 3, absorber 12 is arranged between surfacing 13 and the waterproof material 11, between absorber 12 and surfacing 13 gasket material 14 is set.

The waterproof material 11 of the shape of the main body 18 of formation breast pad 10 and the profile of absorber 13 are roughly rounded, and lateral parts is a linearity.

Above-mentioned waterproof material 11 is back layers, and by use binding agent at bonding part 11a place, the upside material among Fig. 3 is fixed relatively.Though waterproof material 11 is by liquid, preferably can the permeate water steam and prevent airtight, the best material of selection with certain program deformability.And waterproof material 11 is by forming than the previously used softish material of waterproof material that can thermal deformation.Such material uses non-woven fabrics that for example polyethylene film, polyethylene lamination non-woven fabrics or fusion converting process make etc.

Above-mentioned surfacing 13 is the materials that directly contact with the skin of user, selects the good and good materials of skin sense of touch of moisture content permeability such as breast milk.That is, consider because surfacing 13 directly contacts with the skin of user, in order not cause unnecessary damage to skin, aspect such as the skin sense of touch is good, the material that selection is suitable.Preferably use three layers of sieve cloth (mesh cloth that use polyethylene etc. forms), non-woven fabrics.Surfacing 13 particularly side edge portions 13a, 13a is arranged to whole side edge portions prolongation, turns back (back layer one side) to reverse side again, encases described absorber 12 in back and retractility material 17.

Like this, flexible by described retractility material 17 along its length direction, produce gauffer as shown in Figure 1, its lateral end panel inwardly becomes, even this part contacts with the skin of user, because this contact portion is covered by flexible materials such as non-woven fabrics, also can not produce uncomfortable sensation and stimulation.

And, be associated therewith, near the both sides of the edge of the middle body (the D-D line among Fig. 2) of main body 18, be provided with the asynthetic part 31,31 of side edge portions 13a, 13a of waterproof material 11 and upturned surfacing 13.Like this, when the described retractility material 17,17 in back works, the side edge portions 13a of described upturned surfacing 13,13a are when stretching on the direction of user skin, and the side edge portions of waterproof material 11 is followed this situation, do not contact with the skin of user.Like this, can prevent to contact with skin, and produce the situation of uncomfortable sensation by the waterproof material 11 that specific surface material 13 firm materials constitute.

Absorber 12 is selected the good material of liquid-absorbent, for example, uses paper pulp fiber body or laminated body, sheet material etc.Best, further use in these paper pulp materials etc., sneaking into polymer on the absorber 12, described polymer be fluid absorbent good, have liquid former state or semi-solid preparation or solidify the particulate material of the material of maintenance performance.

Such material for example can use the water absorption copolymer, and that for example can enumerate polyacrylate based copolymer, starch-acrylonitrile graft copolymer adds water decomposition thing, starch-acrylate graft copolymer, polyvinyl alcohol acrylates copolymer, carboxy methyl cellulose degeneration thing etc.

Then, as shown in Figure 3, absorber 12 is surrounded by fabric 15.Like this, above-mentioned granular polymer etc. is not revealed.

As shown in Figure 3, the described fabric 15 end 15a that surrounds absorbers 12 is fixed on the position with the misalignment of main body 18.

The gasket material 14 that is arranged between absorber 12 and the surfacing 13 is formed by the hydrophilic non-woven of for example deciding thickness, like this, material softness ground is expanded.

In this embodiment, best gasket material 14 is peripheral littler than main body 18, only is arranged near the center.

And, as depicted in figs. 1 and 2, on surfacing 13, separate the field C that contacts with the nipple of user, in its both sides,, be formed with chase 16,16 along direction shown in the arrow A that the direction place is set of retractility material 17,17.

Described chase 16,16 forms with following method.As shown in Figure 3, use method such as embossing processing to push the interarea of surfacing 13, preferably be deep in the gasket material 14 with institute's level pressure power.Like this, because surfacing 13 fixes by this chase with the gasket material 14 that is arranged on below it, be not easy to produce dislocation mutually as surfacing 16, absorber 12, the gasket material 14 of the parts that constitute main body 18.

And as shown in Figure 3, each chase 16,16 becomes meanders at this place, play make main body 18 around along the effect of the direction bending of arrow B.Like this, cooperate, make integral body can form more spatial hemispherical shape with the effect of the described retractility material 17 in back.

Like this, the whole field C that is positioned at the middle body of main body 18 becomes depressed part, and the space corresponding with this field C be accommodating belt usefulness person's nipple (back narration) just in time, can not produce unnecessary compressing.And because the effect of gasket material 14 is swelled on thickness direction near the more close center of this field C a little, this part flexibly cooperates nipple.

And, in the sectional view of Fig. 3, internal structure for convenience of explanation, the thickness of breast pad represent than actual much thick.And the degree of depth of chase 16,16 also can form the form that the deep is divided and shallow portion is provided with alternately.

And, be provided with retractility material 17,17 on the breast pad 10 in the both sides of the edge of main body 18.In this embodiment, this retractility material 17,17 is arranged to along the above-below direction as shown in Figure 2 of goods roughly parallel to each other, has institute's measured length.In this case, as what from Fig. 3, seen, retractility material 17,17 cross sections become even shape, in other words, retractility material 17,17 select the top of its cross sections and below have fixed area, thin strip-shaped parts for example, spread binding agent by the manufacturing process of narrating later, on this face, fix strongly.

That is, in the present embodiment, retractility material 17,17 is stablized the hemispherical shape that keeps main body 18 with the jointing material of strong especially contractility stretching main body 18.

As shown in Figure 3, this retractility material 17,17 is in the inboard of turn over part 13b, the 13b of the lateral margin of upturned surfacing 13, preferably be fixed on the absorber 12 at bonding part 56 places by described fabric 15, and, its reverse side is surrounded by the side edge portions 13a of surfacing 13, is fixed on bonding part 56 parts.And each bonding part 56,56 surrounds whole of retractility materials 17,17, and, in the inboard field of retractility material 17,17, have bonding coincidence part 56b, 56b that use overlaps at the binding agent of surfacing 13.And, in the back in Xu Shu the adhesion technique, though use the binding agent on surfacing 13 to overlap, be provided with bonding coincidence part 56b, 56b, but after the binding agent sclerosis, this bonding coincidence part 56b, 56b become one, are becoming the binding agent hardening state under complete all states around the encirclement retractility material 17.

Like this, because retractility material 17,17 is covered by binding agent comprehensively, be adhesively fixed strongly, and because above-mentioned bonding part 56,56 has bonding coincidence part 56b, 56b, the part that turns over 13b, 13b are fixed on the state of turning over also strongly, retractility material 17,17 can not come off in the inboard of turn over part 13b, 13b, is supported securely.Like this, even retractility material 17,17 is brought into play strong contractility, also can not come off from bonding object, its strong contractility acts on the main body 18 effectively, forms suitable hemispherical shape, and keeps shape.

And, constituted by softish surfacing 13 and absorber 12 by the parts of the telescopic action of retractility material 17, because retractility material 17 almost is not fixed on the waterproof material 11, therefore be not subject to the influence of waterproof material 11.

Therefore, because the effect of retractility material 17, the waterproof material 11 that specific surface material 13 senses of touch are harder, with circumference 18a, the 18a of the corresponding main body 18 in the placement of retractility material 17 in do not form gauffer, the main parts that form gauffer are that the surfacing 13 that the parts, particularly non-woven fabrics etc. beyond the waterproof material 11 constitute forms.

Like this, as hereinafter described, wearing, can not contact, producing uncomfortable sensation near the responsive skin the breast of gauffer part that stiff materials constitutes and user with under the state of breast pad 10.

And in order to obtain roughly the same therewith effect, the side edge portions 13a of surfacing is not absorbed body 12 and 17 the two encirclement of retractility material, only is absorbed body 12 and surrounds passable yet.In this case, if retractility material 17 is arranged on a little inwardly position, peripheral part, surfacing 13 and absorber 12 also can realize being not easy direct contact between the gauffer of the skin of user and waterproof material 11.

Here, above-mentioned retractility material 17 is formed by flexible in the longitudinal direction material, as long as and the stretching action that shortens than the length of material of main part of the peripheral part that is provided with this retractility material with main body of making 18, then any form material can adopt.

In this embodiment, retractility material 17,17 is by for example the natural rubber of elongation, synthetic rubber, Flexible film, Ao Peilong band etc. form in one direction.

By the effect of this retractility material 17,17, roughly rounded main body 18 is owing to its a part of peripheral part elastic stretching, and the length of whole circumference shortens.Therefore, the core of main body 18 is deformed into to a direction outstanding, forms hemispherical shape or bowl-shape like this.

Here, 17,17 pairs of surfacings 13 of best above-mentioned retractility material are arranged on position, gasket material 14 inboards (downside among Fig. 3).Because even for example surfacing 13 is between gasket material 14 and retractility material 17, if retractility material 17,17 is arranged near the skin of user, then the skin sense of touch is impaired, dressing sensation also can variation.

And if retractility material 17 too close surfacings 13, because its elastic contractile force, existence can not be brought into play the situation of suitable shortening peripheral part effect, can not obtain expectation function.Therefore, best, as mentioned above, retractility material 17,17 is by being fixed on the periphery that is arranged on main body 18 on the absorber 12.

And, be not positioned near the central authorities of absorber 12 as mentioned above if surround the joint close 15a of the fabric 15 of absorber 12, be positioned near the marginal portion, for example overlap and be fixed on part as shown in the figure, owing to, can not make responsive nipple feel uncomfortable not at the position relative with the nipple of user.

And retractility material 17 not only can form the both sides of the edge that linearity is arranged on breast pad, also can form curve-like and be arranged on whole outside.

The telescopic action of retractility material 17 acts on the peripheral part of main body 18 like this, and by above-mentioned chase 16 part complications, main body 18 forms three-dimensional hemispherical, and near the field C its center is partly outstanding.

In this case, if chase 16,16 wishes to form curve shape, main body 18 can form more good-looking hemispherical shape.

As shown in Figure 2, be arranged to the outstanding curve shape of the core of main body 18 by the middle body of each chase 16, the hemispherical shape of formation can obtain the coniform hemispherical of approximate desired, and promptly near the field C one side sectional area center reduces.

And the curve shape of each chase 16,16 is opposite with Fig. 2, and middle body 16a, 16a also can be arranged to towards the side-prominent curve shape of the periphery one of main body 18.In this case, because the hemispherical shape that the meanders on the chase 16 forms, the area (volume) of the field C that its inboard forms can obtain the hemispherical of bigger state.

And the breast pad 10 in the present embodiment forms laterally zygomorphic shape as shown in Figure 2, and retractility material 17 is not arranged near the top and bottom of main body 18.That is, retractility material 17 is provided with along the both sides of the edge of main body 18, and expose a little from the field that absorber 12 is set at its two ends up and down.

Here, four jiaos of formations of the breast pad 10 of present embodiment are identical, and representational is the symbol F among Fig. 2 to be represented that the periphery at position amplifies illustrate in Fig. 5, and its structure is described.

This breast pad 10 roughly has whole rounded main body 18, by the both sides of the edge at it retractility material 17 is set, and makes the both sides of the edge shape that is in line.Therefore, as shown in Figure 5, near the side portion intersection at circular external shape portion and linearity its upper end forms bight 32.

Field as shown in Figure 5, the profile that the absorber 12 that comprises fabric 15 forms specific surface material 13 and waterproof material 11 is little.That is, surfacing 13 has identical size and shape with waterproof material 11, is wrapped within and without respectively.

The upper end 15b that comprises the absorber 12 of fabric 15 forms the curve with the roughly the same curvature in upper end of surfacing 13 and waterproof material 11.Therefore, near described upper end 15b side and the in contrast small curve part 15c of direction bending is continuous, arrives approximate horizontal side upper end 15d continuously.

The upper end 17a that is positioned at an end of retractility material 17 gives prominence to from this side upper end 15b.That is, the upper end 17a of retractility material 17 exposes from the side upper end 15d of the absorber 12 that comprises fabric 15, but is arranged between surfacing 13 and the waterproof material 11, does not expose outside.So, beyond the base section of digging up the roots of the upper end 17a of this retractility material 17, by the adhesion technique of narrating later, become not with the breast pad main body 18 that comprises surfacing 13 and waterproof material 11 in any one component parts by fixed free part such as bonding.This part is the rich part 17a of retractility material 17.

By such formation, it is excessive that the size of main body 18 can not become, so that constitute the rich part of the following effect of performance.

Play a role like this, as follows.

Promptly, understand with reference to the Fig. 6 that is used for comparison, if the upper part 17a of retractility material 17 is with respect to fixing by method such as bonding as the surfacing 13 of the part of main body 18 and waterproof material 11, as shown in Figure 6, retractility material 17 shrinks along direction shown in the arrow G according to its effect.Like this, the upper part 17a of retractility material 17 is when performance makes main body 18 integral body form the effect of hemispherical shape, also along the stretch side top of surfacing 13 and waterproof material 11 of laminated parcel of direction shown in the arrow G.

Therefore, as shown in Figure 6, the bight 32 of surfacing 13 and waterproof material 11 becomes towards the inboard, and the bight 32 of the waterproof material 11 that is made of specific surface material 13 hard rigid material is towards the skin of user.Therefore, when this bight 32 contacts with the skin of user, produce uncomfortable stimulation.

; as shown in Figure 5; if have the rich part at the parcel position that is not fixed on surfacing 13 and waterproof material 11 at the upper end of retractility material 17 17a; waterproof material 11 is not subjected to the influence of above-mentioned effect; its bight 32 can effectively be avoided bringing the situation of uncomfortable stimulation to take place to user not towards the inboard.Therefore, retractility material 17 does not bring uncomfortable stimulation to user when forming the hemispherical shape that suitably cooperates breast pad main body 18.

And, for the such function of retractility material 17 performances, need adopt identical structure in the upper and lower end parts of each retractility material 17 certainly.

And, in process for making, rich part 17a like this is provided with the retractility material of prolongation with respect to the long in one direction material of main part that constitutes main body 18, just roughly is limited on the position of the absorber 12 that comprises fabric 15, by fixing this retractility material 17 formation.Therefore, the end 17a of retractility material 17 is rich parts, and it also can remove as the part of not bringing into play original function.In this case, there is not the position of end 17a, promptly four of main body 18 jiaos, do not exist the position of retractility material 17 to become rich part.

Here, the size of main body 18 may be bigger than the situation of Fig. 2, the field that surfacing 13 and waterproof material 11 constitute is bigger than situation shown in Figure 2, four corners position comprises that particularly the absorber 12 of fabric 15 becomes aforesaid curve-like, even form with the profile of main body 18 identical shapedly, the rich part that the effect of retractility material 17 does not relate to can be set also.

Fig. 4 is partial cross section's enlarged drawing that the explanation user is dressed the state of breast pad 10.The front of the breast 25 of user is to be to be inverted bowl-shape roughly hemispherical shape, and nipple 26 is from outstanding near its summit.

Relative therewith, breast pad 10 in an embodiment is shown in cross sectional shape, and the effect by above-mentioned retractility material 17, chase 16 forms three-dimensional hemispherical shape, the shape of the front of the breast 25 that roughly covers user can be formed, and nipple 26 can be held in the field C of formation depression.In this case, as shown in Figure 4, can be temporarily fixed on two positions up and down in the outside that interim bonding part 4,4 on the medicated bra is arranged on waterproof material 11.

What Fig. 7 illustrated the unit packaging that is used to place two above-mentioned breast pad 10 (packing separately) holds body 120.

In the drawings, it is to be made of last shoestring 121, following shoestring 122 that breast pad holds body 120, and they are respectively strip-shaped parts long on the direction, they are identical parts, in Xu Shu the manufacturing process, for example, provide the banded film that banded polyethylene is made in the back.

As shown in Figure 7, this breast pad holds in the body (below be called " holding body ") 120 two breast pad 10,10 is set above the infra shoestring 122.In this case, each breast pad 10,10 is doubling respectively as mentioned above, as shown in Figure 7 towards equidirectional.Folded part 10b, the 10b lower right side in figure of each doubling breast pad 10,10 for example, their direction unanimity.

In this state, the overlapping in the above shoestring 121 of going up.Then, two breast pad 10,10 are clipped between shoestring 121 and the following shoestring 122 under the state, for example wait periphery 122a, 122a shown in the oblique line of periphery 121a, the 121a of shoestring 121 on described and following shoestring 122 are engaged by heat-sealing.

Then, near central authorities on the last shoestring 121, form seal opening device 124 along width.Because this seal opening device 124 is arranged to easily to break a seal by straightforward procedure and is held the form of body, in this embodiment, for example constitute,, can easily from hold body 120, take out each breast pad 10,10 by tearing this sewing machine hole 124 by the sewing machine hole.Fig. 8 is the sectional view that the D-D line in Fig. 7 is cut open.

In the drawings, the peripheral part 10a of each breast pad 10,10 of doubling and folded part 10b are placed in towards equidirectional and hold in the body 120.Each breast pad 10,10 has bonding part 111a, 111a in 2 places on the surface of waterproof material 11 separately, for example uses the place of binding agent.Temporary fixed peeling paper 125,125 on this bonding part 111a, 111a as stripping off device, and described peeling paper 125,125 is fixed by each bonding part 121b, 122b with respect to last shoestring 121 and following shoestring 122.

So, in this case,, constitute between bonding part 111a, 111a and corresponding therewith each second bonding part 121b, 122b and have different bonding forces for example by using different methods such as binding agent.

That is it is strong, to form the bonding force of bonding part 121b, the 122b specific adhesion 111a of portion, 111a.

Therefore, user only need be torn and hold body 120 and just can take out breast pad 10.That is, when taking out this breast pad 10, releasing is temporary fixed with peeling paper 125, and peeling paper 125 remains in stronger each bonding part 121b of the bonding force specific adhesion 111a of portion, 111a, 122b one example.Like this, when taking out breast pad 10, expose two bonding part 111a, 111a on its waterproof material 11 surfaces, this bonding part 111a, 111a use as interim bonding part 4 illustrated in fig. 8, can be fixed on the inboard of underwear.

And, owing to have 2 bonding parts (111a, 111a) on this breast pad 10,, therefore can fixedly secure as fixture with respect to underwear.

If the described body 120 that holds is the boundary from state shown in Figure 8 with its imagining center line C-C, and is folding along direction shown in the arrow, just be folded into state as shown in Figure 9, become the doubling unit packaging.

And, in Fig. 9, omit above-mentioned each bonding part.

In Fig. 9, under this state, the breast pad 10,10 that holds doublings in the body 120 is overlapping in the opposite direction respectively, therefore hold among the figure of body 120 left thickness T1 (highly) and right thickness T2 (highly) about equally.

And the unfavorable shoestring 121 of using is clamped breast pad with 122 two strip-shaped parts of following shoestring, and breast pad is placed on 1 strip-shaped parts, and the strip-shaped parts of turning back again component unit packing is also passable.

And, make transparently by banded polyethylene film at least a portion, thus in processes such as manufacturing process, can utilize naked eyes visual or utilize apparatus such as gamma camera to confirm whether to take place the unusual or defective of packing etc.

Figure 10 illustrates the simple structure of the manufacturing installation of breast pad 10, and this manufacturing installation 30 is finished following technology: promptly to be the technology of a plurality of material laminates the manufacturing process of the breast pad 10 at center, the breast pad of finishing 10 to be placed on the independent technology of the package in the body (holding body 120) held of independent packing.

Manufacturing installation 30 has the transfer line 31 that Handling device such as conveyer belt constitutes, and technology is carried out along described transfer line 31 along the direction of arrow according to the control of carrying out the control device 38 of Automatic Control, and the terminal A1 of epimere is connected to the A2 position of hypomere among the figure.

At first, in the beginning part of transfer line 31, carry banded material fabric from donor rollers 32a.Fabric on transfer line 31 is supplied with the comminution pulp that paper pulp feedway 33 is supplied with, and forms absorber 12 by fabric and paper pulp etc.

The fabric of supplying with paper pulp is set in sequence in from the surfacing 13 of supply port 34 with successive strip material supply by the fabric cutting knife 35b unit of being cut into goods size.

Here, constitute on the absorber 12 at main body two ends and the surfacing 13 and smear for example thermoplastic adhesives as hereinafter described at interval, for example the heat of rubber system or olefin-based is melted and is waited binding agent (fix and use HM).

Then, under the state that applies strong pulling force, the retractility material 52 that is wrapped on the donor rollers 51 is arranged on the field of having used binding agent, and the both sides of the edge part of surfacing 13 turns back to the inside, and retractility material 52 is bonded on the inboard that turns back part.Then, by pressurization, retractility material 52 is cut off by Flexible film cutting knife 55.Begin to the technology of cutting off retractility material 52 to describe in detail in the back from smearing described binding agent as the binding agent application process.

Then, the back layer that constitutes waterproof material 11 from donor rollers 41 supply with and overlap with continuous ribbon-like materials absorber 12 and surfacing 13 above.In this case, in the last stage of absorber 12, stick on the layer of back from peeling off the peeling paper 25 that paper bowl 42 is supplied with surfacing 13 laminations.Promptly, binding agent such as melting from peeling off the heat of using rubber system or olefin-based on the peeling paper 25 that paper bowl 42 supplies with continuous ribbon-like materials continuously, form the first bonding part 111a, after the cut-out, each is decided to be attached at interval on the back layer as waterproof material that the continuous ribbon-like materials of carrying from donor rollers 41 constitutes with predefined.

Then, carry the laminated body of the material laminate formation of absorber 12 and surfacing 13 and waterproof material 11, form the end pattern by the end pattern make-up machine corresponding 36, cut off the goods profile that forms breast pad 10, finish breast pad 10 by goods cutting knife 37 with the goods profile of breast pad 10.

Then, the technology shown in the hypomere A2 among Figure 10 begins part and moves, enter breast pad 10,10 by two be placed on independent packing hold the interior independent technology of the package of body (for example holding body 120).

Manufacturing installation 30 has the various devices corresponding to independent technology of the package, particularly, and as the breast pad 10 of the product of carrying from transfer line 31 of finishing, in the doubling in turn of the doubling position 44 of goods.

Described goods doubling position 44 for example constitutes form shown in Figure 11.

In Figure 11, doubling position 44 forms the opening 31a of transfer lines 31, has the last side line 72 and the following side line 71 that form of the conveyer belt etc. of the oblique extension of clamping up and down from opening 31a.

Near opening 31a, for example as shown in the figure, be provided with folder 78, by constituting with the folder bar that enters the mode gyration of withdrawing from the opening 31a.

When arrive in the center that is adjusted into the breast pad 10 that is transported to opening 31a the gyration period of the folder bar of folder 78, folder bar enters the form in the opening 31a.Like this, as illustrated in fig. 7, by folder 78, breast pad 10 is folding in the doubling of the position of centrage C.

Last side line 72 and following side line 71 transport breast pad 10 with the burst of the breast pad 10 of doubling as shown in the figure towards the state in the place ahead, are transported to the press roller 73 as pressure setting.Press roller 73 is rollers of a pair of identical shape, and the breast pad 10 by doubling is by the narrow intermittence between the press roller 73, overlapping peripheral part H, the H of compacting breast pad 10.

Like this, though have only the superimposed compacting of peripheral part H, H of breast pad 10, can be temporarily fixed at overlap condition by state, particularly in the present embodiment, the back layer of peripheral part H, the H of the breast pad 10 of part shown in the symbol 58 of Figure 10 is smeared HM, makes it to contact with surfacing.Like this, by press roller 73, the HM that smears in advance sees through the back layer material slightly, is penetrated into the opposite.By the effect of HM of infiltration, overlapping peripheral part H, the H of breast pad 10 can be more effectively temporary fixed.

Then, in Figure 10, donor rollers 45 is supplied with following shoestring 122 from a side with successive strip material, and with coincidence system therewith, donor rollers 46 is supplied with shoestring 121 with continuous ribbon-like materials.Between holds according to the mode of two of clampings with the temporary fixed breast pad 10 of doubled state.

That is, above the infra shoestring 122, each breast pad 10 of doubling is arranged so that decided interval is linearly in turn along carriage direction.In this stage, on the surface of breast pad 10, formed the first bonding part 111a, stick peeling paper 25.

Then, be pre-formed the second bonding part 121b, the 122b that is used for fixing peeling paper 25 in the inboard of shoestring 121,122 up and down.By the overlapping shoestring 121 of going up in the above, each breast pad 10 is clipped in up and down between the shoestring 121,122, utilize independent packaging device 46b shoestring 121,122 up and down their circumference 121a, 122a and separately the border of packing unit engage.

Then, as shown in figure 12, the individual packaging unit of two breast pad 10,10 of each packing (two unit that breast pad 10,10 surrounds by the periphery heat-sealing) becomes the unitary packing of goods by continuous state, utilize cut-out line 35 to cut off along the border by independent packing shearing device 47, after the incision, as shown in figure 13, form and to hold body 120 as packaging unit separately.Then, by to device for folding 48, hold body 120 and be folded into form as shown in Figure 9 as shown in figure 10, be transported to commodity packaging stage (not shown).And, when doubling is packed separately, also can carry out bondingly temporarily, do not depart from so that make between the medial surface.

By above-mentioned technology, finish the independent technology of the package in the body (holding body 120) held that is placed on independent packing with the manufacturing process that is the breast pad 10 at center to the technology of a plurality of material laminates, the breast pad of finishing 10 on the manufacturing installation 30.

Below, describe binding agent application process in detail corresponding to the epimere field that dotted line surrounds among Figure 10.

In Figure 14, as mentioned above, absorber 12 is formed on the surfacing 13, transports along arrow S direction.With the vertical direction of the direct of travel of absorber 12 on both sides of the edge, end 24a, 24a on use as binding agent hot melt adhesive (hereinafter referred to as HM) for example.In this case, HM intermittently smears setting on line at certain intervals corresponding to each absorber 12 of arranging in turn, and application area is correctly determined in the described mode in back.

Before supplying with HM by binding agent feedway 53, preferably utilize hot air supply device 54a, the 54b that are provided with on the line to blow hot blast, give this field heating in advance to periphery surface material 13 and the absorber 12 of the both sides of the edge part 24a, the 24a that comprise absorber 12 at least as heating apparatus.Hot air supply device 54a, 54b can be made of for example hot-blast spray nozzle.By the hot blast of this hot air supply device 54a, 54b, owing to supply with heat can be in the back for the binding agent of smearing, binding agent can loses heat, can keep sufficient adhesive.

Then, by smearing HM in mode shown in 56,56 on the periphery surface material 13 of binding agent feedway 53 to the both sides of the edge part 24a, the 24a that comprise absorber 12.The field of smearing of described binding agent is as shown in figure 15 with consistent as the both sides of the edge part 24a of the L1 length direction of the arrow S direction of carriage direction and absorber 12, or do not exceed very on a large scale than this part.Like this, rich part 17a part illustrated in fig. 5 is not bonding, and binding agent can be smeared in the inboard near symbol 15d.

And as shown in figure 15, the big or small W2 of the width of the spreader portion 56 of binding agent is arranged to 2 times above the width W 1 of the retractility material of placing 52 (17) on it.

Then, as shown in figure 14, after the spreader portion 56,56 that forms binding agent, two successive thin zonal retractility materials 52,52 are set respectively.In this case, retractility material 52,52 is elongated to roughly 180% to 200% of leement duration, preferably for example is elongated to 200% degree, overlaps on the binding agent spreader portion 56,56 under this extended state keeping.

Like this, the retractility material 17 that is hidden in the breast pad 10 shown in Fig. 1 can be brought into play strong contractility.

Then, be preferably among Figure 14 corresponding to blowing hot blast by hot air supply device (nozzle) 54c, 54d near the stick portion 56,56, the sclerosis of delay binding agent.And, on arrow S direction, to transport, by the folding folder that adds the Ministry of worker 57 etc., the both sides of the edge of surfacing 13 fold into the top among the figure, turn back the inboard.

Like this, as illustrated in fig. 3, because going up, 17,17 whole of retractility materials cover binding agent, can be adhesively fixed strongly, and because above-mentioned bonding part 56,56 has bonding overlapping 56b, 56b, upturned part 13b, 13b also can firmly fix upturned state, and retractility material 17,17 does not firmly fix in the inboard of turn over part 13b, 13b with not coming off.Like this, even the strong contractility of retractility material 17,17 performances can not come off from bonding object yet, its extremely strong contractility acts on the main body 18 effectively, the structure that can obtain to form suitable hemispherical shape and keep shape.

Then, in Figure 10, be transported to pressing technology 58.For example finish at this pressing technology by press roller 58 as shown in figure 16.

Press roller 58 constitutes by constituting a pair of two identical shaped rollers 59,59 up and down, and the shape along absorber 12 on the surface of roller 59,59 forms recess 59a, 59a.But turn over part 13b, the 13b of the corresponding above-mentioned bonding part 56 of the lateral edge portions of the absorber of this recess 59a, 59a do not cave in.

Like this, clamp absorber 12 on the surfacing 13, transport, pressurize along arrow S direction with two rollers 59,59, compacting turn over part 13b, 13b, the compacting stick portion makes it bonding really.Like this, retractility material 17,17 is firmly fixing.

The present invention is not limited to the foregoing description.

For example, a plurality of gasket materials also can be placed in the inside of main body 18.

And chase 16 is not arranged on the surfacing 16, and it is first-class also passable only to be formed on the most absorber 12 that accounts for main body 18 thickness.That is, as long as chase 16 has the function that forms tortuous place, part is arranged on the part of the parts that constitute main body 18 also passable.

And waterproof material 11 or surfacing 13, absorber 12 also can be selected the various materials beyond the material described in the foregoing description.

And the whole parts that constitute main body 18 needn't all be roughly rounded, and it is roughly rounded also passable that the difform material of lamination forms integral body.That is, the parts that the retractility material can be set are roughly rounded, also can make it to keep hemispherical shape.

Claims (1)

1. an absorbing products forms main body by absorber that absorbs liquid and the waterproof material lamination that is arranged on this absorber outside, it is characterized in that constituting integral body and roughly being hemispherical by around aforementioned body the retractility material being set.

Images