CN219579242U - Diffusion type structure, fabric and sanitary article - Google Patents

Abstract

The utility model relates to the field of sanitary products, in particular to a diffusion type structure, fabric and sanitary product, which comprises a plurality of protrusion units, wherein each protrusion unit comprises a plurality of strip-shaped protrusions, the protrusions are respectively a transverse protrusion and a vertical protrusion, and the transverse protrusions and the vertical protrusions on each protrusion unit are connected with each other. The liquid is gathered on the surface course and influences the problem that liquid oozes down fast to this scheme.

Description

Diffusion type structure, fabric and sanitary article

Technical Field

The utility model relates to the field of sanitary products, in particular to a diffusion type structure, fabric and a sanitary product.

Background

The current sanitary article mainly comprises a surface layer, a core layer and a bottom film. When the sanitary article is used, the surface layer is in contact with skin, liquid such as urine or menstrual blood discharged by a human body is adsorbed by the surface layer and then is downwards transferred to the core layer, the core layer absorbs and stores the liquid, the bottom layer is a layer of film outside the sanitary article, and liquid in the sanitary article is prevented from exuding.

The surface layer in the prior art is made of non-woven fabric materials, the non-woven fabric is not hydrophilic, in order to make the non-woven fabric hydrophilic and improve the liquid permeability on the non-woven fabric, the surface hydrophilic finishing modification is mainly adopted at present, namely a hydrophilic agent aqueous solution with a certain concentration is prepared, the hydrophilic agent is attached to the fiber surface of the non-woven fabric in a roller coating, spraying or padding mode, and finishing is finished through drying. The hydrophilic agent is mainly formed by compounding a plurality of surfactants, after finishing, a layer of surfactant single (or multi-layer) molecular film with lipophilic inward (fiber) and hydrophilic outward is adsorbed on the surface of the hydrophobic polyolefin fiber, so that the hydrophilic surface is formed, and water can permeate on the non-woven fabric.

However, hydrophilic agents have problems with the degree of adhesion to the fibers, i.e., failure of the active agent over time, changes in ambient temperature, etc. Thus, even if the active agent is used, the hydrophilic performance of the non-woven fabric is reduced, so that the liquid permeability of the non-woven fabric is affected, the liquid cannot be infiltrated down in time, the liquid is accumulated on the surface layer and cannot be infiltrated down in a short time due to the fact that the liquid discharge amount is large and concentrated, so that the wet feeling is brought to a user, the comfort is affected, skin diseases are brought to the user, for example, for infants, skin allergy and inflammation of the infants are caused due to the fact that the skin of the infants is tender and tender, and private parts of women are wet, itching, red swelling and the like due to the fact that the skin of the infants is tender and tender.

Disclosure of Invention

The utility model aims to provide a diffusion type structure, a fabric and a sanitary article, which are used for solving the problem that liquid gathers on the middle part of a surface layer to influence the rapid infiltration of the liquid.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a diffusion type structure, includes a plurality of protruding units, every protruding unit all includes a plurality of banding archs, and a plurality of archs are horizontal arch and vertical arch respectively, protruding interconnect in the protruding unit.

The bulge in this scheme is the strip, and not square, shape such as circular, because for the strip, the lug is certain length, and liquid can follow the bulge and remove, and the cotton thread that similar in the life absorbs water to drain and water conservancy diversion to the liquid has played the effect of water conservancy diversion, diffusion to the liquid. The protruding in this scheme has two directions, namely transversely and vertically, and the direction that liquid removed on the protruding of different directions is different, and liquid can be followed the protruding diffusion all around of different directions, compares liquid and removes on the protruding of unilateral, and liquid diffusion's area is great, has avoided liquid "piling up" in a department, has reduced the time that the liquid oozes down, and then has reduced the moist degree of surface course, does benefit to the comfort that improves the use.

Meanwhile, gaps are formed between the adjacent bulges, and provide space for air flow, so that the air flow can be improved, the air permeability of the sanitary article is improved, and the comfort level is further improved.

Preferably, as an improvement, the protrusions in the protrusion units are divided into multiple layers, the protrusions of each layer are sequentially connected, and the protrusions of adjacent layers are respectively a transverse protrusion and a vertical protrusion.

From this, protruding in this scheme has a plurality of levels, and the protruding unit that the protruding constitution of a plurality of levels has constituted the tree-like figure, and the protruding interconnect of horizontal arch and the vertical arch of adjacent level, the protruding trunk that is equivalent to of first level, and the protruding branch, the leaf that are equivalent to of later level.

Because the arch has a plurality of levels, therefore the protruding removal of liquid can on different levels, and the bellied direction of adjacent level is different, and the direction of liquid removal is different on the protruding of different levels, and liquid can be followed the protruding of tree-like distribution and spread all around, and the area of liquid diffusion is great, very big avoiding liquid "to pile up" in one department, has reduced the time that the liquid oozes down, and then has reduced the moist of surface course, does benefit to the comfort that improves the use. Therefore, the liquid diffusion effect is better due to the bulges distributed in the layers, and the appearance is attractive.

Preferably, as a modification, the protrusions of the first level are vertical protrusions, and the length of the protrusions of the next level is smaller than that of the protrusions of the previous level. Therefore, the length of the bulge of the upper layer is larger than that of the bulge of the lower layer, the bulge of the upper layer can be guaranteed to have a certain length to connect with more bulges of the lower layer, and therefore the diffusion effect of liquid can be guaranteed. Meanwhile, the first level is vertical, the length is longest, liquid can be diffused vertically as much as possible, the vertical diffusion proportion of the liquid is larger than that of the transverse diffusion, and side leakage caused by dominant transverse diffusion of the liquid is avoided.

Preferably, as a modification, the number of levels is 2-5. The number of layers is proper between 2 and 5 layers, so that the whole diffusion type structure is complex and difficult to process and manufacture due to too many layers.

Preferably, as a modification, the height of the protrusions is 0.5-1mm.

Preferably, as a modification, the protrusions are triangular, diamond-shaped or hexagonal. Thus, the shape of the protrusions may be set to different shapes.

Preferably, as a modification, the device further comprises a penetration hole, wherein the penetration hole is close to the end of the bulge. Thus, the liquid can infiltrate downwards through the penetration holes, and the liquid infiltration speed is increased compared with the case where no penetration holes are provided. Meanwhile, the permeation hole is close to the end part of the protrusion, because the protrusion guides liquid to the permeation hole, the liquid can permeate downwards along the permeation hole, so that the diffused liquid can permeate downwards rapidly, and even if the active agent fails, the liquid permeation performance of the non-woven fabric is not greatly influenced. This scheme is from punching on the non-woven fabrics and set up protruding to dredge the diffusion two aspects to liquid and improve liquid infiltration speed.

Preferably, as an improvement, the fabric is provided with a rapid infiltration zone, a blocking zone and a supplementary infiltration zone, the protruding unit is positioned in the rapid infiltration zone, the blocking zone is positioned at two sides of the rapid infiltration zone, the supplementary infiltration zone is positioned at one side of the blocking zone away from the rapid infiltration zone, and the liquid infiltration speed of the rapid infiltration zone is greater than that of the supplementary infiltration zone.

In the scheme, partition treatment is carried out, and the convex units are positioned in the rapid infiltration area. The liquid infiltration speed of the rapid infiltration area is high, so that a large amount of liquid can be infiltrated. Because the blocking area is positioned at two sides of the rapid infiltration area, the supplementary infiltration area is positioned at one side of the blocking area away from the rapid infiltration area, and therefore, compared with the blocking area and the supplementary infiltration area, the rapid infiltration area is positioned at the middle position (such as the middle part of a sanitary towel and the crotch part of a paper diaper), when the rapid infiltration area is used, the rapid infiltration area is close to the discharge part of liquid (urine or menstrual blood), and after the liquid is discharged from the body, the liquid can be immediately sucked by the rapid infiltration area, and the rapid infiltration area enables the liquid to rapidly infiltrate. The rapid infiltration zone is capable of allowing a substantial portion of the liquid to infiltrate. Meanwhile, the rapid infiltration area is contacted with the discharged liquid, so that the liquid amount in the rapid infiltration area is large, and the convex units are arranged in the rapid infiltration area, so that a large amount of liquid in the rapid infiltration area is longitudinally and transversely evacuated, the accumulation of the liquid is reduced, the liquid is uniformly distributed in the rapid infiltration area, and the downward infiltration effect is good.

In addition, the blocking area in the scheme is used for blocking liquid which is not infiltrated in time, so that the lateral outward diffusion of the liquid from the rapid infiltration area is reduced, and the blocking area has a certain blocking limiting effect on the liquid in the rapid infiltration area, so that the liquid discharged from the body is infiltrated in the rapid infiltration area as much as possible, and the lateral diffusion of the liquid is reduced.

Although the blocking area can limit the blocking of the liquid and reduce the outward diffusion of the liquid, the blocking area can not be used for blocking one hundred percent, a small amount of liquid can still be diffused out through the blocking area, and the setting of the supplementing and seepage area is used for absorbing a small amount of liquid diffused out from the rapid seepage area at the moment so as to achieve the purpose of supplementing and seepage the diffused liquid, thereby reducing the further transverse diffusion of the liquid.

To sum up, through this scheme for from internal exhaust liquid restriction in the quick-permeation district, dredge liquid through the diffusion formula structure, make liquid remove on sanitary article, make liquid can be to dispersing all around in quick-permeation district, liquid is evenly in quick-permeation district, quick-permeation district carries out a large amount of, quick absorption and infiltration to internal exhaust liquid, thereby reduce the effect that the volume of stopping and dwell time of liquid have played quick-absorption, be favorable to improving comfort level like this, even if the active agent is inefficacy, the liquid infiltration performance to the non-woven fabrics influences not greatly yet. Meanwhile, a small amount of liquid which comes out from the rapid infiltration region and passes through the blocking region is absorbed by the infiltration supplementing region, and the liquid infiltrates downwards in the infiltration supplementing region, so that the continuous transverse diffusion of a small amount of liquid which comes out from the rapid infiltration region is avoided, and the side leakage phenomenon of the sanitary article is reduced.

Preferably, as an improvement, the blocking area is a blocking protrusion protruding from the surface of the fabric; the permeation supplementing area is provided with permeation supplementing holes, and the pore diameter of the permeation supplementing holes is larger than that of the permeation supplementing holes.

The protrusion that blocks in this scheme is protruding from the surface of fibre main part, consequently blocks the protruding surface that is higher than the rapid infiltration district in the district to carry out certain shielding to the lateral diffusion of liquid, play and transversely block spacing effect to the liquid. Because the aperture of the permeation hole is larger than that of the permeation supplementing hole, the liquid permeation speed of the rapid permeation area is larger than that of the permeation supplementing area.

In addition, the utility model also discloses the following technical scheme: the fabric is provided with any diffusion type structure.

The diffusion type structure is applied to the fabric, so that the fabric has the corresponding technical effect generated by the diffusion type flow pattern structure, and the diffusion type structure is protected, and the fabric with the diffusion type flow pattern structure is also protected.

In addition, the utility model also discloses the following technical scheme: the sanitary article comprises a surface layer, a core layer and a bottom film, wherein the surface layer is made of the fabric; sanitary articles include diapers, pull-ups, sanitary napkins, sleeping pants or panty liners.

The fabric is applied to the surface layer of the sanitary article, such as the surface layer of a paper diaper, a pull-up diaper, a sanitary towel, a sleeping pants or a diaper, and the sanitary article can be applied to the sanitary article of infants, children or adults and also can be applied to the sanitary article of pets, so that the sanitary article has corresponding technical effects.

Drawings

Fig. 1 is a plan view of a fabric.

Fig. 2 is a schematic diagram of a diffusion structure.

Fig. 3 is a plan view of another fabric.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: fabric 1, quick-permeation area 2, blocking area 3, supplementary permeation area 4, blocking protrusion 6, supplementary permeation hole 7, first protrusion 11, first tip 12, second protrusion 13, third protrusion 14, and permeation hole 15.

Example 1

In this example, a diffusion type structure is disclosed, and the application of the structure to a fabric 1 (non-woven fabric) is taken as an example, and the structure is specifically applied to a surface layer of a sanitary article to describe an embodiment of the utility model.

Substantially as shown in figures 1-2 of the accompanying drawings: the utility model provides a diffusion type structure, includes a plurality of protruding units, every protruding unit all includes a plurality of banding protruding, and a plurality of protruding are horizontal protruding and vertical protruding respectively, and the protruding interconnect of horizontal protruding and vertical protruding on every protruding unit. The shape of the bulge is a triangle, a diamond or a hexagon and other strip shapes, and the two waist lengths of the triangle are larger than the bottom edge length due to the strip shape, and neither the diamond nor the hexagon is a regular polygon, namely the multiple diagonals of the diamond are unequal, and the multiple diagonals of the hexagon are unequal.

In this embodiment, the plurality of protrusions on each protrusion unit are divided into multiple layers, the protrusions of each layer are sequentially connected, the protrusions of adjacent layers are respectively a horizontal protrusion and a vertical protrusion, that is, the protrusions of adjacent layers are connected with each other to form a tree diagram, a single protrusion unit can look like a tree, the protrusions of one of the two adjacent layers are both horizontal protrusions, and the protrusions of the other layer are both vertical protrusions; in this embodiment, the protrusions of the first level are vertical protrusions, and the protrusions of the second level are horizontal protrusions. The length of the projections of the next level is smaller than that of the projections of the previous level. Therefore, in the bump units, the longest bump is the first level, and since the bump units are tree-shaped, the trunk has only one, and thus the number of bumps in the first level is one.

Specifically, the number of levels of the tree is 2 to 5, preferably 3. The height of the bulge protruding from the using surface (the surface contacting with the skin) of the fabric 1 is 0.5-1mm. The projections on the third level are a first projection 11 in the longitudinal direction of the first level, a second projection 13 connected to the side of the first projection 11 on the second level, and a third projection 14 connected to the side of the second projection 13 on the third level, respectively. The number of the first protrusions 11 is one, the directions of the first protrusions 11 and the third protrusions 14 are the same, the first protrusions 11 and the third protrusions 14 are longitudinal, the second protrusions 13 are transverse, the number of the second protrusions 13 is six, the number of the third protrusions 14 is twelve, the directions of the third protrusions 14 and the directions of the second protrusions 13 are perpendicular to each other, and the directions of the second protrusions 13 and the directions of the first protrusions 11 are perpendicular to each other. The first protrusion 11 in this embodiment has a first tip 12 at its end. The end of the second protrusion 13 away from the first protrusion 11 is a second tip, and the end of the third protrusion 14 away from the second protrusion 13 is a third tip.

For the preparation of the diffusion type structure, the preparation can be carried out by adopting the existing preparation method: the non-woven fabrics pass through the compression roller on the production line, and the compression roller is located the non-woven fabrics back, and convex pressure tooth presses out diffusion formula structure from the face of using of non-woven fabrics on the compression roller, and protruding profile of tooth shape is the same with the diffusion formula structure shape of processing on the surface of compression roller.

When the structure is applied to the non-woven fabric 1, the structure is required to be positioned in the middle of the fabric 1, so that the diffusion structure can be positioned in the middle of the sanitary article when the fabric 1 is used as a surface layer of the sanitary article. When the sanitary article is produced, the part provided with the diffusion type structure on the surface layer is arranged in the middle part of the sanitary article (for example, the middle part of the sanitary towel and the crotch part of the paper diaper), so that after liquid is discharged from the body, a large amount of liquid can be in immediate contact with the diffusion type structure, the liquid can move along the first bulge 11, the second bulge 13 and the third bulge 14, for example, the liquid can move along the first bulge 11 and flow to the first tip 12, meanwhile, the liquid on the first bulge 11 can enter the second bulge 13 and move to the second tip of the second bulge 13, meanwhile, the liquid on the second bulge 13 can also move to the third bulge 14, the liquid on the third bulge 14 moves to the third tip of the third bulge 14, so that the liquid moves on different levels (the sequence of the liquid on the first bulge 11, the second bulge 13 and the third bulge 14 is not unique), the liquid can diffuse along the periphery of the bulge tree, compared with the liquid which moves on the bulge on the single direction, the diffusion on the bulge, the liquid can be greatly reduced in the diffusion area on the middle part, and the liquid can be more uniformly accumulated on the surface of the liquid, and the wet and more comfortable layer can be avoided.

Example 2

As shown in fig. 3, the fabric 1 of this embodiment is provided with penetration holes 15 near the ends of the protrusions, that is, penetration holes 15 are provided at the first tip 12, the second tip and the third tip, and the penetration holes 15 of this embodiment have a hole diameter of 0.05-2mm, preferably 1mm. Thus, a part of the liquid on the fabric can directly enter the permeation hole 15, and another part of the liquid moves to the first tip 12 along the first bulge 11, enters the second tip along the second bulge 13 and enters the third tip along the third bulge 14, and enters the permeation holes 15 at each tip, namely, the tips are thinner, so that the liquid can be accurately guided into the permeation holes 15. In this embodiment, the liquid can infiltrate along the infiltration holes 15, and compared with the liquid which only depends on the own gap on the fabric 1 to infiltrate, the liquid diffused on the fabric 1 can infiltrate rapidly.

Example 3

As shown in fig. 1 and 3, in this embodiment, the fabric 1 is provided with zones. Specifically, the fabric 1 is provided with a rapid infiltration region 2, a blocking region 3 and a supplementary infiltration region 4, the diffusion structures in the embodiment 1 and the embodiment 2 are positioned in the rapid infiltration region 2, the blocking region 3 is positioned at two sides of the rapid infiltration region 2, the supplementary infiltration region 4 is positioned at one side of the blocking region 3 far away from the rapid infiltration region 2, and the liquid infiltration speed of the rapid infiltration region 2 is greater than that of the supplementary infiltration region 4. The rapid infiltration region 2, the barrier region 3 and the supplemental infiltration region 4 are each drawn with a dashed line for ease of illustration in the figure, but may be physically present without a dashed line. The rapid-permeation area 2 in the present embodiment is located in the middle of the fabric 1, so that the rapid-permeation area 2 can be located at the liquid discharge portion of the body in actual use.

The liquid infiltration speed of the rapid infiltration region 2 in the embodiment is greater than that of the supplementary infiltration region 4, and the specific implementation mode is as follows: the rapid infiltration region 2 is provided with a plurality of infiltration holes 15, the infiltration supplementing region 4 is provided with a plurality of infiltration supplementing holes 7, and the aperture of the infiltration supplementing holes 15 is larger than that of the infiltration supplementing holes 7, so that the passing speed and the passing throughput of liquid in the infiltration supplementing holes 15 are larger than those of the infiltration supplementing holes 7, and the liquid infiltration speed of the rapid infiltration region 2 is larger than that of the infiltration supplementing region 4. The hole diameter of the permeation hole 15 in this embodiment is 0.05 to 2mm, preferably 1mm, and the hole diameter of the repair permeation hole 7 is 0.05 to 0.1mm, preferably 0.1mm. The processing modes of the permeation hole 15 and the permeation supplementing hole 7 are as follows: when the nonwoven fabric passes through the perforation assembly (the perforation assembly comprises two rollers, the surface of one roller is provided with needles, and the surface of the other roller is provided with needle grooves matched with the needles), the needles for processing the penetration holes 15 are thicker than the needles for processing the complementary penetration holes 7, and the needles respectively pierce the penetration holes 15 and the complementary penetration holes 7 on the nonwoven fabric along with the rotation of the rollers.

In this embodiment, the blocking area 3 is a blocking protrusion 6 protruding from the surface of the fabric 1, the blocking protrusion 6 is in a straight strip shape or a curved strip shape, and the height and the processing mode of the blocking protrusion 6 in this embodiment are the same as those of the protrusion on the diffusion structure.

With this embodiment, since the rapid infiltration region 2 is located in the middle, the liquid is first brought into contact with the rapid infiltration region 2 after being discharged from the body. The diffusion type structure of the quick-permeation area 2 is used for conducting liquid to diffuse on the quick-permeation area 2 of the surface layer of the sanitary product, liquid accumulation is avoided, the quick-permeation area 2 is used for conducting massive and rapid absorption and downward permeation on liquid discharged from the body, accordingly the retention quantity and retention time of the liquid on the surface layer are reduced, the quick-absorption effect is achieved, the liquid quantity on the surface layer is reduced, the occurrence of side leakage of the sanitary product is avoided, and the comfort level is improved.

The blocking bulge 6 of the blocking area 3 has a certain height, liquid is not easy to cross the blocking bulge 6 and move towards the direction of the supplementing and infiltrating area 4, and the liquid is limited in the rapid infiltration area 2 to be infiltrated through the infiltration holes 15 under the blocking action of the blocking area 3. Even if a small amount of liquid flows out of the rapid infiltration region 2 and flows into the infiltration supplementing region 4, the liquid can infiltrate downwards through the infiltration supplementing holes 7, so that the continuous transverse diffusion of a small amount of liquid out of the rapid infiltration region 2 is avoided, and the side leakage phenomenon of the sanitary article is reduced.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (9)

1. A diffusion-type structure, characterized in that: the device comprises a plurality of protruding units, wherein each protruding unit comprises a plurality of strip-shaped protrusions, the protrusions are respectively a transverse protrusion and a vertical protrusion, and the protrusions in the protruding units are connected with each other; the bulges in the bulge units are divided into multiple layers, the bulges of each layer are sequentially connected, and the bulges of the adjacent layers are respectively transverse bulges and vertical bulges.

2. A diffusion structure according to claim 1, wherein: the bulges of the first level are vertical bulges, and the length of the bulges of the next level is smaller than that of the bulges of the previous level.

3. A diffusion structure according to claim 1 or 2, characterized in that: the number of layers is 2-5.

4. A diffusion structure according to claim 1, wherein: the height of the protrusions is 0.5-1mm.

5. A diffusion structure according to claim 1, wherein: the protrusions are triangular, diamond-shaped or hexagonal.

6. A diffusion structure according to claim 1, wherein: the device also comprises a penetration hole, wherein the penetration hole is close to the end part of the bulge.

7. A diffusion structure according to claim 6, wherein: the rapid infiltration device further comprises a rapid infiltration region, a blocking region and a supplementary infiltration region, wherein the protruding unit is located in the rapid infiltration region, the blocking region is located at two sides of the rapid infiltration region, the supplementary infiltration region is located at one side of the blocking region away from the rapid infiltration region, and the liquid infiltration speed of the rapid infiltration region is greater than that of the supplementary infiltration region.

8. The fabric is characterized in that: the fabric is provided with the diffusion type structure as claimed in any one of claims 1 to 7.

9. Sanitary article, including surface course, core layer and carrier film, its characterized in that: the facing layer is made of the fabric of claim 8; the sanitary articles comprise paper diapers, pull-up pants, sanitary napkins, sleeping pants or urine pads.