CN208372032U - A kind of high-selenium corn high diffusivity absorbent article - Google Patents

Abstract

The utility model relates to a kind of high-selenium corn high diffusivity absorbent articles, include liquid permeability surface layer, opaque liquid bottom and absorbed layer, the absorbed layer includes absorptive core, the absorptive core along its longitudinal direction include at least one liquid longitudinal diffusion guiding region and around the liquid longitudinal diffusion guiding region setting absorber area, its design feature is to be equipped with flexible liquid permeability surface layer on the absorbed layer, the diversion groove extended along liquid longitudinal diffusion guiding region direction is equipped in elastic liquid permeability surface layer corresponding with liquid longitudinal diffusion guiding region, the diversion groove is along the thickness direction of absorbent article by elastic liquid permeability surface layer downward through liquid longitudinal diffusion guiding region, fluffy fiber network in the diversion groove in liquid longitudinal diffusion guiding region is connected as with elastic liquid permeability surface layer through hot pressing layer One, and the diversion groove breadth, length are respectively smaller than the transverse width of liquid longitudinal diffusion guiding region, longitudinal length.

Description

A kind of high-selenium corn high diffusivity absorbent article

Technical field

The utility model relates to disposable liquid absorbent item technical field, in particular to a kind of high-selenium corn high diffusivity absorbs Product.

Background technique

In general, baby's absorbent article includes baby paper diaper, nappy, Tolaku etc., there is multilayer material composition, Including inner surface material, absorbing material etc..As the improvement of people's living standards, due to baby paper diaper have it is easy to carry, The advantages of clean hygiene, therefore, paper diaper for infant using more and more extensive.Baby's absorbent article increasingly be particular about comfortably with Practical, the application of baby's absorbent article facilitates people and fosters baby.

More thick and heavy due to resulting in paper diaper using traditional technique, it is inconvenient to come to infant's active belt, and it is long when Between use be easy to stick together, tomography, therefore be easy to be expressed to the crotch of infant, make troubles to infant's activity, while The health care belt of infant is endangered, the healthy growth of infant is influenced.In order to which baby's dress is more comfortable, occur by bulky suction Receive the case where material is to ultra-thin absorbent excessive material.But due to ultrathin products have the characteristics that it is lighter and thinner, more comfortable, It is more and more welcomed by the people.

However, ultrathin products currently on the market are multifarious, it is various in style, but due to the spy of ultra-thin absorbent core itself Property, therefore, with many defects.Such as, ultrathin products are resulted in using conventional technique and is easy side leakage, while longitudinal diffusion Difference, affect the actual use performance of the absorptive core, and be easy to cause baby's erythema etc..

In order to improve problem of the existing technology, industry technology personnel are such to overcome using a kind of special absorptive core Technical problem.Such as:

Notification number is that the patent of invention of 103300975 A of CN proposes a kind of pectination multilayer absorption that can be used for paper diaper Core and processing method, including the comb teeth-shaped structure inside ultra-thin multilayer absorbent core body and core, if each layer of absorber layers by It is dry to be longitudinally arranged the absorber item composition being incorporated on fibrous structure plies, apart there is interval between absorber item, this is spaced in suction It receives and forms longitudinal pectinate texture on core, the multilayer core of this innovation passes through special production and processing technology, obtains Pectination sandwich absorptive unit.Multilayer absorbent core body of the invention is applied to after paper diaper, so that paper diaper are more frivolous, together When paper diaper absorb liquid after formed U-shaped stereochemical structure, personal effect is more preferable, prevent urine to two sides horizontal proliferation, more preferably Urethral catheterization liquid is combed on ground, so that urine walk and is absorbed toward longitudinal direction, a possibility that reduction side leakage, prevents urine from leg two sides Exudation, and longitudinal diffusion liquid makes product absorber be fully utilized, and reduces paper diaper replacement, economy, green ring It protects.

However, the prior art is only provided with pectinate texture in the longitudinal side of absorptive core, although the technical solution exists It can promote the longitudinal diffusion of urine to a certain extent, but the Super Absorbent Polymer Particles due to constituting absorber item have specific surface The feature that product is big, infiltration rate is fast, therefore, once urine stream touches Super Absorbent Polymer Particles surface, i.e., by super absorbent resin Particle storage, meanwhile, Super Absorbent Polymer Particles will expand after absorbing urine, and the high hydroscopic resin colloid after expansion will squeeze Into, migrate to the comb teeth-shaped structure of fibrous structure plies, Super Absorbent Polymer Particles colloid is filled in the comb teeth as water conservancy diversion In shape structure, and the phenomenon that colloid surface is tacky, it is easy to appear colloid choking phenomenon, subsequent urine is caused to be difficult to spread apart again Come.

Notification number is that the patent of CN104720984A discloses the absorbent article that area and wetness indicators are formed with slot (20) comprising there are at least two slots formation area (26a, b) longitudinally extended and wetting to refer to for absorbent cores (28), the absorbent cores (100) are remembered in indicating.The core wrappage includes top side face (16) and bottom side (16 '), by substantially free of absorbing material Region (26a, b) be attached to each other so that the core wrappage is along these when absorbing material (60) is swollen after absorption of liquid Region (26a, b) substantially free of absorbing material forms slot (26 ' a, b).Such as from the point of view of the outside of the product, wetting instruction Label is placed in slot and is formed between area (26a, b), or be placed at least one slot formed area (26a, b) and product at least one is vertical To between the side edge (13,14) of extension.

Notification number is that the patent of CN105853075A discloses and a kind of with Fast Restoration structure and prevents interior stream of urinating and defecating Paper diaper, including the waistline for capableing of the compound core body structure of imbibition, elasticity is encircled, the compound core body structure includes that elasticity is fluffy Non-woven fabrics, macromolecule cloth and super soft dust-free paper, the surface of the compound core body structure is equipped with diversion trench, and is located at compound core body The refluence slot of structure one end.The beneficial effects of the present invention are: paper diaper can recover immediately original softness when disassembling packaging And elasticity, discomfort when baby being avoided to dress, hole formation web are capable of the absorption of Free up Memory quickening urine, while in paper The compound core body body structure surface of urine pants is equipped with diversion trench, flows backwards urine along diversion trench, and in compound core body structure One end is equipped with the refluence slot for preventing back leak, slows down urine back leak, and the fold friction of paper diaper two sides is avoided to cause infant skin red and swollen Allergy, the waistline that furthermore elasticity is encircled is not comfortable, personal, tight after baby is worn, and avoids outflow of urinating and defecating.

Although containing however, the aforementioned prior art is provided with diversion trench due to being located in the absorptive core under diversion trench There is graininess super absorbent resin, on the one hand graininess super absorbent resin will be impermeable during diversion trench is hot-forming in this way Fluidity bottom and liquid permeability surface layer puncture, and absorbent article is caused to lose the meaning used, on the other hand, in the prior art thoroughly It is provided with guide layer, extruding absorption paper or dust-free paper between fluidity surface layer and absorbent cores, not only influences diversion trench in hot pressing The generation of hot sticky node between middle liquid permeability surface layer and absorptive core causes the two bonding insecure, over time, leads Material under chute is being separated from each other, loosely, and the effect of diversion trench is also gradually scattered and disappeared, moreover, with super absorbent resin Expansion is absorbed, liquid permeability surface layer will apply internal pressure power to absorbent cores, cause the absorbability of absorbent cores low and fluid retention Bad phenomenon is spread, the generation of leakage, side leakage problem is also resulted in.

Summary of the invention

The purpose of this utility model is exactly to provide a kind of absorbent article of high-selenium corn high diffusivity, in order to realize above-mentioned mesh Mark, it is described

The technical solution taken: the high-selenium corn high diffusivity absorbent article includes liquid permeability surface layer, opaque liquid bottom And the absorbed layer between liquid permeability surface layer and opaque liquid bottom, the absorbed layer includes absorptive core, the absorption Core includes at least one liquid longitudinal diffusion guiding region and around the liquid longitudinal diffusion water conservancy diversion along its longitudinal direction The absorber area of area's setting, liquid longitudinal diffusion guiding region is connected to adjacent absorber between absorber area Area；The absorber area includes meldable fibre network structure floor and is entrenched in fiber mesh in the meldable fibre network structure floor In super absorbent resin；Liquid longitudinal diffusion guiding region is fine with height curling hot-melt fiber or/and scroll pile slurry The dimension fluffy fiber network built-up by interspersed winding, in liquid longitudinal diffusion guiding region company adjacent with the absorber area Place is met, high curling hot-melt fiber or/and scroll pile pulp fibres and fibrillar meshwork structure layer in the fluffy fiber network Interior meldable fibre is mutually wound, obvolvent is connected as one, and the liquid permeability surface layer is that have the elastic liquid permeability of spring function Surface layer is equipped on elastic liquid permeability surface layer corresponding with liquid longitudinal diffusion guiding region along liquid longitudinal diffusion water conservancy diversion The diversion groove that area direction extends, the diversion groove is by elastic liquid permeability surface layer along the thickness of liquid longitudinal diffusion guiding region Direction pushes and is formed by baltimore groove on liquid longitudinal diffusion guiding region, and the diversion groove breadth, length point Not little Yu liquid longitudinal diffusion guiding region transverse width, longitudinal length.

In some embodiments, liquid longitudinal diffusion guiding region is with height curling hot-melt fiber or/and volume The bent fluff pulp fibers fluffy fiber network built-up by interspersed winding, but in the fiber mesh of fluffy fiber network not Containing super absorbent resin.The fluffy fiber network is compacted downwards along its thickness direction and forms baltimore groove, fluffy fiber net The density of network improves, and fluffy fiber network is connected as one with elastic liquid permeability surface layer through hot pressing layer.

Further, liquid longitudinal diffusion guiding region distributed quantity at least one, preferably two, are symmetric On absorptive core, shape includes linear type, arc line shaped, fold-line-shaped and x-ray shape, and further, liquid longitudinal diffusion is led Flowing area is three, symmetrical including two symmetrical arc line shaped liquid longitudinal diffusion guiding regions, and positioned at two curved lines Linear type liquid longitudinal diffusion guiding region at axis.The distribution trajectory liquid longitudinal diffusion guiding region of diversion groove is equivalent, but Its distributed quantity can be equal with liquid longitudinal diffusion guiding region, can not also be equal, i.e., in some liquid longitudinal diffusion water conservancy diversion Not formed diversion groove in area is preferably equally arranged two on two symmetrical arc line shaped liquid longitudinal diffusion guiding regions The symmetrical arc line shaped diversion groove of item, and do not set diversion groove on linear type liquid longitudinal diffusion guiding region, or preferably To set diversion groove on linear type liquid longitudinal diffusion guiding region, and in two symmetrical arc line shaped liquid longitudinal diffusion Diversion groove is not set on guiding region.

In a specific embodiment, the elastic liquid permeability surface layer includes that elastic non-woven area and diversion groove are non-woven Cloth area, the elastic non-woven area are distributed around diversion groove non-woven cloth area；The elastic non-woven area, diversion groove Using non-woven cloth as substrate, which is integrally formed in non-woven cloth area, wherein the nonwoven substrate Belong to industry prior art material, the spunbonded nonwoven including the molding Through-Air Thermal Bonded Nonwovens of hot wind, melt-spun spunbond technological forming Cloth, the Nonwovens of hot-roll forming or spun lacing/needle pierce molding non-woven cloth, and the spandex thread also belongs to showing for industry There is material.The elastic non-woven area is on the endosexine of nonwoven substrate to be compounded with spandex thread and flexible non- Woven cloths, the spandex thread are arranged along the non-woven cloth width direction or length direction interval, spacing distance 0.5-5cm, The draw ratio of the spandex thread is 1.1-3.5；Preferably, the nonwoven substrate in diversion groove non-woven cloth area does not have It is flexible, such as by making cutoff process to the spandex thread in nonwoven substrate, so that coating the non-woven cloth base of the spandex thread Material follows the string, but in some possible embodiments, and the nonwoven substrate in diversion groove non-woven cloth area can Not make cutoff process, and the nonwoven substrate for coating the spandex thread is made to be provided with elasticity.

Elasticity liquid permeability surface layer described in the utility model includes single jersey elastic liquid permeability surface layer, two-sided elastic liquid permeability face Layer, wherein single jersey elastic liquid permeability surface layer presses the compound spandex thread of setting method gluing above-mentioned on nonwoven substrate, and double Surface elastic liquid permeability surface layer is between the nonwoven substrate of two sides by the compound spandex thread of setting method gluing above-mentioned.As into One step it is preferred, salient point or taper permeability hole can be provided on the non-woven cloth of the interval region of adjacent spandex thread.

Embodiment as a further preference, the diversion groove are points along liquid longitudinal diffusion guiding region Cloth track is configured, and the fluffy fiber network in liquid longitudinal diffusion guiding region in a heated condition, is hot pressed roller convex block edge The thickness of fluffy fiber network reduces after its thickness direction hot pressing, and density improves, and recessed knot is formed relative to absorber area Structure, and the thermal plasticity high polymer in the nonwoven substrate of elastic liquid permeability surface layer, such as PP/PE bicomponent fibers, PET/PE Bicomponent fibers, are hot pressed roller in a heated condition and fluffy fiber network forms hot melting cohesion point, by elastic liquid permeability face Layer is integrated with fluffy fiber network connection, and forms the structure of diversion groove, wherein heating method uses infrared heating, surpasses Sound wave heating, preferably ultrasonic wave.Therefore, as liquid longitudinal diffusion guiding region, shape includes the shape of the diversion groove Linear type, arc line shaped, fold-line-shaped and x-ray shape, but the cross-sectional shape of diversion groove include inverted trapezoidal, square, rectangle, V-type or arc, as further preferred specific embodiment, the preferred inverted trapezoidal of cross-sectional shape or arc, as further It is preferred, the utility model in diversion groove do not include have spandex thread, if spandex thread is along the nonwoven substrate width On direction longitudinal length interval setting, and the shape of diversion groove be two parallel lines when, select in nonwoven substrate Diversion groove molding corresponding region is not provided with spandex thread, or contains spandex thread in diversion groove, but by carrying out to spandex thread Cutoff process, so that the spandex thread in diversion groove does not have elasticity, if spandex thread is along the nonwoven substrate length direction On transverse width interval setting, in diversion groove forming process, to spandex thread carry out cutoff process.

Further, the elastic liquid permeability surface layer is other than using spandex thread elastic non-woven, the elasticity transparent liquid Property surface layer also may be selected to be spunbond elastic non-woven or spun lacing elastic non-woven.

Embodiment as a further preference also provides other than the liquid diffusibility for further increasing absorbent article A kind of infiltrative scheme increasing liquid, also sets up permeability hole along the side and/or bottom of the diversion groove, the infiltration The shape in hole includes circle, ellipse, star, diamond shape, triangle and back taper.In a specific embodiment, it can also will answer Several permeability holes are arranged by certain distribution trajectory combination of shapes, such as diamond shape, star.The permeability hole can choose as conventional Round, slotted eye, preferably reverse taper hole, wherein cone mouth is towards extexine, this is because reverse taper hole is other than permeation liquid, Can also effectively prevent having penetrated into the intracorporal liquid of absorbent cores and return the problem of infiltration squeezes out under pressure, the back taper permeability hole with It is horizontal or tilt down direction and penetrate in absorber area, permeability hole axial line and absorber sector width direction horizontal line formed 0 °- 60 ° of angle.

In a specific embodiment, the absorbed layer further includes dust-free paper, includes at least upper absorptive core and lower absorbent cores Body overlaps built-up two layers of absorptive core and clean paper layer, compound and be linked together by adhesive layer from top to bottom.

In some embodiments, in order to increase the absorbability in absorber area and the diffusion of diversion groove, infiltration Rate, the excessive transfer absorbed body that can be also arranged along the longitudinal side of diversion groove, the transfer absorbed body select wood pulp cellulose Item, blotting paper or dust-free paper penetrate into the liquid in absorber area for temporary absorption, storage by reverse taper hole, this is excessively The liquid of the absorption storage of transfer absorbed body will gradually be absorbed the absorption of body area, and therefore, the excessive transfer absorbed body is to absorber There is excellent collaboration to promote infiltration rate in area, while improve the diffusion of diversion groove, seepage velocity, and then effectively improve absorption The absorption of product, diffusivity.

The lateral breadth of the elasticity liquid permeability surface layer is greater than the lateral breadth of absorbed layer, the elasticity liquid permeability surface layer patch Close absorbed layer surface layer after two longitudinal sides continue extension stretching, extension, then respectively with leakproof edge non-woven cloth, opaque liquid bottom Circumferential connection or two longitudinal side of bonding of layer is glued along two vertical side of the edge infoldings of absorbed layer, and with opaque liquid bottom Connection is closed, floated absorbed layer is formed.

It is of the utility model the utility model has the advantages that on the one hand, the utility model is equipped on the absorbed layer of absorbent item Flexible liquid permeability surface layer, and in hot pressing diversion groove corresponding with liquid longitudinal diffusion guiding region, so that liquid can Quickly to spread along diversion groove to longitudinal both ends of absorbent article, absorbent article is increased substantially to the diffusion speed of liquid Degree, improves the absorbability and utilization rate of absorbent article, while permeability hole further increases the absorption of liquid in diversion groove And diffusion velocity, the problem of absorbed layer leads to infiltration, side leakage because of colloid blocking in the prior art is effectively reduced；On the other hand, The liquid permeability surface layer of the utility model has elasticity, after the super absorbent resin Resin Absorbent liquid in absorbed layer expands, bullet Property liquid permeability surface layer can provide enough expansion spaces for absorbed layer, and the imbibition ability of absorbed layer is greatly improved, solves The liquid permeability surface layer of existing absorbent article the technical issues of limitation absorbed layer subsequent continuation imbibition, makes after absorbed layer imbibition expansion The practical imbibition ability for obtaining absorbed layer only reaches 50%-60% of its own saturation imbibition ability, to cause absorbent article sharp Low with rate and formation huge household consumption burden and the wasting of resources.To sum up, absorbent article provided by the utility model has height Diffusion, high-absorbable energy, can produce higher economic benefit, social benefit and environmental benefit.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the high-selenium corn high diffusivity absorbent article of embodiment 1.

Fig. 2 is the diversion groove structural schematic diagram for A-A section view in Fig. 1 of embodiment 1, embodiment 2.

Fig. 3 is the diversion groove another kind structural schematic diagram for A-A section view in Fig. 1 of embodiment 1, embodiment 2.

Fig. 4 is the structural schematic diagram of the single jersey elastic liquid permeability surface layer of embodiment 2.

Fig. 5 is the structural schematic diagram of the two-sided elastic liquid permeability surface layer of embodiment 2.

Fig. 6 is the structural schematic diagram of the spunbond elastic non-woven of embodiment 3.

Fig. 7 is the three-decker schematic diagram of the elastic non-woven of embodiment 4.

Fig. 8 is the double-layer structure schematic diagram of the elastic non-woven of embodiment 4.

Fig. 9 is the absorbed layer schematic diagram in the high-selenium corn high diffusivity absorbent article of embodiment 5.

Figure 10 is the structural schematic diagram for the permeability hole of embodiment 5 being arranged on diversion groove.

Figure 11 is the structural schematic diagram for the excessive transfer absorbed body of B-B section view in Fig. 9 of embodiment 6.

Figure 12 is another structural schematic diagram of the excessive transfer absorbed body of B-B section view in Fig. 9 of embodiment 6.

Figure 13 is the vertical bar type absorptive core schematic diagram equipped with linear type liquid longitudinal diffusion guiding region of embodiment 7.

Figure 14 is the dumbbell shape absorptive core schematic diagram equipped with arc line shaped liquid longitudinal diffusion guiding region of embodiment 7.

Figure 15 is the structural schematic diagram of the absorbed layer of embodiment 7, embodiment 8.

Figure 16 is the structural schematic diagram of the dust-free paper of embodiment 9.

Figure 17 is the structural schematic diagram of the absorbed layer of embodiment 9.

Specific embodiment

In order to be defined as follows to term in text to the further understanding of the utility model work:

Term " absorbent article " refers to the article of the excreta (urine, excrement, menses) for absorbing and accommodating people, belongs to primary Sex hygiene articles, i.e. hygienic articles absorb liquid and tend to after being saturated or containing the excessive object such as excrement class not use, and enter The article of garbage reclamation processing system, including baby paper diaper, baby diaper, baby Tuo La trousers, adult diaper, adult paper Diaper etc..

Term " liquid permeability surface layer " refers to that hot-melt fiber handles by surface hydrophilicity and has excellent permeability to liquid Non-woven cloth, non-woven cloth is also known as non-woven fabrics, including hot-wind nonwoven cloth, Nonwovens, spun-bonded non-woven fabrics.

In order to make further understanding to the utility model, it is explained now in conjunction with attached drawing.

Embodiment 1

As shown in attached drawing 1, Fig. 2, the high-selenium corn high diffusivity absorbent article 1 of the present embodiment, as baby paper diaper, nappy, Tolaku includes liquid permeability surface layer, opaque liquid bottom and the suction between liquid permeability surface layer and opaque liquid bottom Layer is received, the absorbed layer includes absorptive core 9, and the absorptive core 9 is vertical along the liquid that its longitudinal direction includes at least one To diffusing baffle area, two liquid longitudinal diffusion guiding regions 91 are preferably arranged in the present embodiment in 9 longitudinal direction of absorptive core, with And around the absorber area 92 of the liquid longitudinal diffusion guiding region 91 setting, liquid longitudinal diffusion guiding region 91, which is located at, to be absorbed Between body area 92, and it is connected to adjacent absorber area.

Wherein, absorber area 92 includes meldable fibre network structure floor and is entrenched in the meldable fibre network structure floor Super absorbent resin in fiber mesh, the meldable fibre network structure layer not only play the skeleton function of absorptive core, increase The dry strength and wet strength of absorptive core, and it plays the role of fixing and supporting to super absorbent resin, between fiber mesh Hole auxiliary water conservancy diversion and diffusion is played to liquid.Super absorbent resin described in the utility model has excellent absorption The ability of liquid can absorb tens times even human urine of hundreds of times of its own weight, and super absorbent resin includes particle Shape super absorbent resin, the outer surface being polymerized such as aqua-solution method are in the graininess super absorbent resin of irregular shape, such as Outer surface made of inverse suspension polymerization is in the graininess super absorbent resin of spheroid form, further includes fibrous high-hydroscopicity tree Rouge, above-mentioned super absorbent resin belong to prior art material known to those skilled in the art in industry.

Due in existing disposable absorbent article super absorbent resin absorb liquid after, volume expansion and form colloid Shape will generate colloid clogging after absorbing certain liquid so as to cause absorbent article, subsequent liquid is caused to be difficult inhaling The channel for having liquid diffusion inside core again, absorbing is received, leads to leakage, the quality problems of side leakage occur, therefore, in the present embodiment Absorbent article in absorptive core in be arranged liquid longitudinal diffusion guiding region 91.Liquid longitudinal diffusion guiding region 91 be with Height curling hot-melt fiber or/and scroll pile pulp fibres are by interting the built-up fluffy fiber network of winding, fluffy Super absorbent resin is free of in the fiber mesh of network of fibers, in liquid longitudinal diffusion guiding region company adjacent with the absorber area Place is met, high curling hot-melt fiber or/and scroll pile pulp fibres and fibrillar meshwork structure layer in the fluffy fiber network Interior meldable fibre is mutually wound, obvolvent is connected as one.

As shown in attached drawing 1, Fig. 2, although setting liquid longitudinal diffusion guiding region 91 can promote the absorber in absorbent article The absorbability in area, but due to colloid expansion after super absorbent resin imbibition in foregoing absorber area, and then to covering Liquid permeability surface layer on absorbed layer generates the tension opened upwards, similarly, according to action and reaction principle, liquid permeability face Floor will apply systolic pressure, and absorption of the systolic pressure to super absorbent resin to the absorber area in absorbed layer and absorbed layer Ability sharp fall, absorbability are only equivalent to the 50%-60% of super absorbent resin saturated absorption ability.Therefore, originally Embodiment is equipped with flexible liquid permeability surface layer 2 on the absorbed layer, opposite with liquid longitudinal diffusion guiding region 91 The elastic liquid permeability surface layer 2 answered is equipped with the diversion groove 3 extended along 91 direction of liquid longitudinal diffusion guiding region, the water conservancy diversion Groove 3 along the thickness direction of absorbent article 1 by elastic liquid permeability surface layer 2 downward through liquid longitudinal diffusion guiding region 91, Fluffy fiber network and elastic liquid permeability surface layer 2 in the diversion groove 3 in liquid longitudinal diffusion guiding region 91 is through hot pressing layer It is connected as one, and 3 breadth of the diversion groove, length are respectively smaller than the transverse width of liquid longitudinal diffusion guiding region 91, indulge To length.

As shown in Fig. 1, diversion groove 3 described in the present embodiment is point along liquid longitudinal diffusion guiding region 91 Cloth track is configured, and the fluffy fiber network in liquid longitudinal diffusion guiding region 91 in a heated condition, is hot pressed roller convex block The thickness of fluffy fiber network reduces after its thickness direction hot pressing, and density improves, and is formed relative to absorber area recessed Structure, and the thermal plasticity high polymer in the nonwoven substrate of elastic liquid permeability surface layer 2, such as PP/PE bicomponent fibers, PET/PE Bicomponent fibers, are hot pressed roller in a heated condition and fluffy fiber network forms hot melting cohesion point, by elastic liquid permeability face Layer 2 is integrated with fluffy fiber network connection, and forms the structure of diversion groove, wherein heating method uses infrared heating, surpasses Sound wave heating, preferably ultrasonic wave.

Liquid longitudinal diffusion guiding region distributed quantity at least one, preferably two are symmetric in absorptive core On, shape includes linear type, arc line shaped, fold-line-shaped and x-ray shape.The shape and liquid longitudinal diffusion water conservancy diversion of the diversion groove Area is the same, and shape includes linear type, arc line shaped, fold-line-shaped and x-ray shape.

Liquid longitudinal diffusion guiding region distributed quantity at least one, is symmetric in absorbent cores by preferably two On body, in the present embodiment, liquid longitudinal diffusion guiding region is three, including two symmetrical arc line shaped liquid longitudinal diffusion Guiding region, and the linear type liquid longitudinal diffusion guiding region at two curved line axis of symmetry.The distribution of diversion groove Track liquid longitudinal diffusion guiding region is equivalent, but its distributed quantity can be equal with liquid longitudinal diffusion guiding region, can also not It is equivalent, i.e., the not formed diversion groove in some liquid longitudinal diffusion guiding region.In the present embodiment, symmetrical at two Two symmetrical arc line shaped diversion grooves are respectively correspondingly set on arc line shaped liquid longitudinal diffusion guiding region, and in straight line Type liquid longitudinal diffusion does not set diversion groove on guiding region, also can choose to set on linear type liquid longitudinal diffusion guiding region and lead Groove is flowed, and does not set diversion groove on two symmetrical arc line shaped liquid longitudinal diffusion guiding regions.

As shown in attached drawing 2, Fig. 3, the cross-sectional shape of diversion groove includes arc 3, inverted trapezoidal 3a, in addition, can also be used Square, rectangle, V-type are or, the preferred arc 3 of cross-sectional shape, inverted trapezoidal 3a.

As shown in Fig. 1, the lateral breadth of elastic liquid permeability surface layer 2 is greater than the lateral breadth of absorbed layer, elastic liquid permeability Surface layer 2 be bonded absorbed layer surface layer after two longitudinal sides continue extension stretching, extension, then respectively with leakproof edge non-woven cloth 4, no The two vertical side of the edge infoldings of the circumferential bonding connection of liquid permeability bottom 8 or two longitudinal side along absorbed layer, and and liquid-tight Property bottom 8 bonding connection, form floated absorbed layer.

As shown in Fig. 1, the high-selenium corn high diffusivity absorbent article 1 of the present embodiment further includes being arranged in existing absorbent article Calf circumference elastomer, closed system, elastic waistline or the big ring waist of elasticity.Wherein, calf circumference elastomer uses spandex thread, closed system packet The left and right velcro for including frontal waist plaster and arranging in pairs or groups with it.

Embodiment 2

As shown in attached drawing 2, Fig. 3, the present embodiment is that on the basis of embodiment 1, elastic liquid permeability surface layer 2 is divided for elasticity Non-woven cloth area 22 and diversion groove non-woven cloth area 21, the elastic non-woven area 22 is around diversion groove non-woven cloth area 21 distributions.

Using non-woven cloth as substrate, this is non-woven for the elastic non-woven area 22, diversion groove non-woven cloth area 21 Cloth base material is integrally formed, wherein the nonwoven substrate belongs to industry prior art material, including the molding heat of hot wind Wind non-woven cloth, the spun-bonded non-woven of melt-spun spunbond technological forming, the Nonwovens of hot-roll forming or spun lacing/needle thorn at The non-woven cloth of type, the spandex thread also belong to the current material of industry.

As shown in attached drawing 4, Fig. 5, elastic non-woven area 22 is to be compounded with ammonia on the endosexine of nonwoven substrate 13 Synthetic fibre silk 14 and flexible non-woven cloth, wherein the outer surface of spandex thread 14 by spiral glue spraying be coated with adhesive layer 15 with Nonwoven substrate 13 carries out compound, and the spandex thread 14 is set along 13 width direction of non-woven cloth or length direction interval It sets, spacing distance 0.5-5cm, the draw ratio of the spandex thread is 1.1-3.5；It is non-in diversion groove non-woven cloth area to knit It makes cloth base material and does not have elasticity.

Elasticity liquid permeability surface layer described in the utility model includes single jersey elastic liquid permeability surface layer, as shown in Fig. 4, single side Elastic liquid permeability surface layer presses the compound spandex thread 14 of setting method gluing above-mentioned on nonwoven substrate 13, further includes two-sided bullet Property liquid permeability surface layer, as shown in Fig. 5, it is two-sided elasticity liquid permeability surface layer be between two sides nonwoven substrate 13 by above-mentioned The compound spandex thread 14 of setting method gluing.It as a further preference, can be in the non-woven cloth of the interval region of adjacent spandex thread On be provided with salient point or taper permeability hole.

As shown in attached drawing 2, Fig. 3, Fig. 4 and Fig. 5, the present embodiment does not include in diversion groove 3 or 3a spandex thread 14, such as Longitudinal length interval setting of the spandex thread 14 in 13 width direction of nonwoven substrate, and the shape of diversion groove 3 or 3a When shape is two parallel lines, select the diversion groove in the molding of diversion groove 3 corresponding region of nonwoven substrate 13 is non-to knit The area Zao Bu 21 is not provided with spandex thread, or contains spandex thread in diversion groove 3 or 3a, but by carrying out cut-off part to spandex thread 14 Reason, so that the spandex thread in diversion groove 3 or 3a does not have elasticity, if spandex thread 14 is along the nonwoven substrate length direction On transverse width interval setting, in diversion groove 3 or 3a forming process, to spandex thread 14 carry out cutoff process.

Liquid permeability surface layer in the present embodiment is in addition to other than elastic liquid permeability surface layer, it is also possible to which industry liquid permeability surface layer is existing Material such as spun-bonded non-woven (SS), Nonwovens, Through-Air Thermal Bonded Nonwovens, but aforementioned nonwoven cloth is due to lacking elasticity, It will limit the further absorption liquid of super absorbent resin colloid after super absorbent resin absorbs expansion.

Embodiment 3

Other than the spandex thread elastic non-woven that the spandex thread and non-woven cloth that can choose embodiment 2 are combined, The present embodiment is on the basis of embodiment 1, by elastic liquid permeability surface layer selection spunbond elastic non-woven 100 (such as 6 institute of attached drawing Show).

The spunbond elastic non-woven 100 is realized by following technique: using PP (polypropylene) resin as matrix resin, by PP Resin and elastomer based on parts by weight, are obtained by the number of 100:5-35 afterwards by the extrusion of extruder, granulation respectively Elastoplastic particle.Then production technology that the elastoplastic particle is pressed to existing spun-bonded non-woven such as includes measuring fixed amount The step of, the step of extruder melts, the step of melt filtration, the step of manifold spinning, the step of cooling drawing-off, Yi Jipu It is the step of net forming, final to obtain spunbond elastic non-woven 100.Preferably, as shown in Fig. 6, non-being knitted in spunbond elasticity Cloth 100 is made equipped with back taper permeability hole 101.

Embodiment 4

Other than the spandex thread elastic non-woven that the spandex thread and non-woven cloth that can choose embodiment 2 are combined, As shown in attached drawing 7, Fig. 8, the present embodiment is on the basis of embodiment 1, elastic liquid permeability surface layer to be selected elastic non-woven. It is substrate, such as hydro-entangled non-woven fabric that the elastic non-woven, which selects transversely deforming rate or the biggish non-woven cloth of linear deformation rate, (non-woven fabrics), needle fabric (non-woven fabrics) is coated with elastic gum, coating along the biggish direction of its deformation rate on the nonwoven fabric Thickness selected according to non-woven cloth along generated elastic force after being stretched along the biggish direction of its deformation rate, such as glue-line thickness Degree can change between 0.1-500 μm.

The preferred hydro-entangled non-woven fabric of the present embodiment nonwoven substrate, in some embodiments, elastic non-woven Cloth is substrate with hydro-entangled non-woven fabric 102, along the biggish transverse direction coating elasticity of its deformation rate on hydro-entangled non-woven fabric 102 Glue forms elastic gum coating layer 103, obtains the elasticity having in transverse direction.When in use, spun lacing is non-for the elastic non-woven Woven cloths 102 are as the outer layer with user's skin contact.

But in other embodiments, elastic non-woven is non-by the hydro-entangled non-woven fabric 102 on upper layer, the spun lacing of lower layer Woven cloths 104, and formed positioned at the elastic gum coating layer 102 of middle layer, as previous process, elastic gum coating layer 102 The biggish transverse direction of deformation rate equally along hydro-entangled non-woven fabric 102, hydro-entangled non-woven fabric 104 is coated with elastic gum, obtains The elasticity that transverse direction has.

Embodiment 5

The present embodiment is to provide a kind of increase suction on the basis of the liquid diffusibility of the increase absorbent article of embodiment 1 Receive the scheme that product promotes permeability for liquids.

As shown in attached drawing 9, Figure 10, the present embodiment is equipped with flexible liquid permeability surface layer 2 on the absorbed layer, Elasticity liquid permeability surface layer 2 corresponding with liquid longitudinal diffusion guiding region 91 is equipped with along liquid longitudinal diffusion guiding region 91 The diversion groove 3 that direction extends, also sets up permeability hole 31 along the side and/or bottom of diversion groove, the shape of the permeability hole 31 Shape includes circle, ellipse, star, diamond shape, triangle and back taper.It in a specific embodiment, can also be by a plurality of infiltrations Open-work is arranged by certain distribution trajectory combination of shapes, such as diamond shape, star.The permeability hole 31 can choose such as conventional circle Shape, slotted eye, preferably reverse taper hole, wherein cone mouth is towards extexine, this is because reverse taper hole other than permeation liquid, is gone back It can effectively prevent having penetrated into the problem of intracorporal liquid of absorbent cores returns infiltration extrusion under pressure, the back taper permeability hole is with water It puts down or tilts down direction and penetrate in absorber area, permeability hole axial line and absorber sector width direction horizontal line form 0 ° -60 ° Angle.

Embodiment 6

As shown in attached drawing 11, Figure 12, in order to increase the absorbability in absorber area and the diffusion of diversion groove, infiltration speed Rate, the excessive transfer absorbed body 10 that can be also arranged along the longitudinal side of diversion groove, the transfer absorbed body 10 select wood pulp fine Item, blotting paper or dust-free paper are tieed up, penetrates into the liquid in absorber area, the mistake by reverse taper hole for temporary absorption, storage The liquid of the absorption storage of degree transfer absorbed body 10 will gradually be absorbed the absorption of body area, and therefore, the excessive transfer absorbed body 10 is right There is excellent collaboration to promote infiltration rate in absorber area, while improve the diffusion of diversion groove, seepage velocity, and then effectively mention The absorption of high-selenium corn product, diffusivity.

As shown in Fig. 11, the excessive transfer absorbed body 10 of the present embodiment uses dust-free paper, the absorbed layer of the present embodiment by Dust-free paper overlaps built-up two layers of absorptive core and clean paper layer including at least upper absorptive core and lower absorptive core, by Up to lower compound by adhesive layer and be linked together, after hot-forming diversion groove 3, U-shaped dust-free paper is formed, the dust-free paper Between diversion groove 3 and absorber area 92, temporary absorption, storage are played by reverse taper hole and penetrates into absorber area The effect of liquid.

It as shown in Fig. 12, can will be on liquid longitudinal diffusion guiding region 91 as another preferred embodiment Dust-free paper corresponding position part cuts removal, forms genesis analysis track and the consistent hollow out in liquid longitudinal diffusion guiding region 91 Item, the transverse width of the hollow out item is less than the width of liquid longitudinal diffusion guiding region 91, after hot-forming diversion groove 3, The trough rim of diversion groove 3 forms the dust-free paper as excessive transfer absorbed body.The embodiment will not influence diversion groove 3 in heat Press through the production of hot sticky node between the fluffy fiber network in journey in elastic liquid permeability surface layer 2 and liquid longitudinal diffusion guiding region 91 It is raw, it is firmly bonded, will not be separated from each other over time or loosely.

Embodiment 7

As shown in attached drawing 13, Figure 14 and Figure 15, the absorbed layer that the present embodiment uses includes absorptive core 9, absorptive core 9 Overlapped by upper absorptive core 9a and lower absorptive core 9b it is built-up, it is compound by adhesive layer and be linked together.The absorptive core 9 It include two liquid longitudinal diffusion guiding regions 91 along its longitudinal direction, and around the liquid longitudinal diffusion guiding region 91 The absorber area 92 of setting, liquid longitudinal diffusion guiding region 91 are connected to adjacent suction between absorber area 92 Acceptor area.Wherein, absorber area 92 includes meldable fibre network structure floor and is entrenched in the meldable fibre network structure floor Super absorbent resin in fiber mesh.Meldable fibre network structure layer choosing selects hot wind loft non-woven cloth, above-mentioned high-hydroscopicity tree Rouge, hot wind loft non-woven cloth belong to prior art material known to those skilled in the art in industry.

As shown in attached drawing 13, Figure 14 and Figure 15, the liquid longitudinal diffusion guiding region 91 described in the present embodiment is with height volume Bent hot-melt fiber or/and scroll pile pulp fibres are by interting the built-up fluffy fiber network of winding, in fluffy fiber Super absorbent resin is free of in the fiber mesh of network, in the company adjacent with the absorber area 92 of liquid longitudinal diffusion guiding region 91 Place is met, high curling hot-melt fiber or/and scroll pile pulp fibres and meldable fibre network knot in the fluffy fiber network Meldable fibre in structure layer is mutually wound, obvolvent is connected as one.In the specific preferred embodiment of the present embodiment, liquid is vertical Integrally formed hot wind loft non-woven may be selected in meldable fibre network structure floor into diffusing baffle area 91, absorber area 92 Cloth.

As shown in figs. 13 and 14, the shape of absorptive core 9 may be selected vertical bar type absorptive core commonly used in the prior art or Dumbbell shape absorptive core, meanwhile, liquid longitudinal diffusion guiding region 91 is two, is symmetric on absorptive core, shape packet Linear type, arc line shaped are included, other shapes also may be selected, such as fold-line-shaped or x-ray shape.

Embodiment 8

The present embodiment provides a kind of preparation methods of the high-selenium corn high diffusivity absorbent article of embodiment 1 comprising following step It is rapid:

Step 1: to calf circumference elastomer for example spandex thread, closed system carry out spiral glue spraying, and by calf circumference elastomer, closure The step of system is compounded on opaque liquid primer, obtains primer structure sheaf.Wherein opaque liquid primer by Counterdie non-woven fabrics and the ventilated membrane being placed on counterdie non-woven fabrics are combined.

Step 2: as shown in Fig. 15, this step includes the technique to absorbed layer glue spraying above-mentioned, in the bonding of absorbed layer King bolt glue spraying is carried out on interface, then by elastic liquid permeability surface layer 2, such as single jersey elastic liquid permeability surface layer or two-sided elastic transparent liquid Property surface layer, carry out laterally or longitudinally stretch after, by shift sorption wheel technique elastic liquid permeability surface layer 2 is fitted in absorbed layer On, wherein the elastic non-woven area 22 of elastic liquid permeability surface layer 2 and the absorber area 92 of absorptive core 9 in absorbed layer are presented Lower correspondence, and diversion groove non-woven cloth area 21 and the liquid longitudinal diffusion guiding region 91 of absorptive core 9 be in corresponding up and down, then Absorbed layer is compounded on primer structure sheaf again.

In this step, as shown in Fig. 15, the elasticity liquid permeability surface layer 2 includes that elastic non-woven area 22 and water conservancy diversion are recessed Slot non-woven cloth area 21, the elastic non-woven area 22 are distributed around diversion groove non-woven cloth area 21.Wherein, diversion groove Non-woven cloth area 21 is not provided with spandex thread, or contains spandex thread, but by carrying out cutoff process to spandex thread, so that diversion groove The spandex thread in non-woven cloth area does not have elasticity.

In this step, the lateral breadth of elastic liquid permeability surface layer 2 is greater than the lateral breadth of absorbed layer, elastic transparent liquid after fitting Property surface layer 2 two longitudinal sides continue extension stretching, extension, and in opaque liquid bottom circumferentially bonding connection or two vertical side of the edge It bonds and connects with opaque liquid bottom again after folding cladding absorbed layer.

Step 3: in the step of forming diversion groove on absorbed layer.In this step, the hot-pressing roller of convex block is equipped with using roll surface Diversion groove is formed along the liquid longitudinal diffusion guiding region hot pressing in absorbed layer, the diversion groove breadth, length difference are small Transverse width, longitudinal length in liquid longitudinal diffusion guiding region 91.Wherein, heating method is added using infrared heating, ultrasonic wave Heat, preferably ultrasonic heat are molded.

In this step, diversion groove is configured along the distribution trajectory of liquid longitudinal diffusion guiding region 91, liquid Fluffy fiber network in longitudinal diffusion guiding region 91 in a heated condition, it is fluffy after its thickness direction hot pressing to be hot pressed roller convex block The thickness of loose network of fibers reduces, and density improves, and recessed structure is formed relative to absorber area, and elastic liquid permeability surface layer Thermal plasticity high polymer in 2 nonwoven substrate is being heated such as PP/PE bicomponent fibers, PET/PE bicomponent fibers Under the conditions of be hot pressed roller and fluffy fiber network and form hot melting cohesion point, elastic liquid permeability surface layer 2 is connected with fluffy fiber network It is connected in one, and forms the structure of diversion groove.Wherein, heating method is being embodied using infrared heating, ultrasonic Wave heating Preferred ultrasonic wave in mode.Therefore, for the shape of the diversion groove as liquid longitudinal diffusion guiding region, shape includes straight line Type, arc line shaped.

The cross-sectional shape that this step is formed by diversion groove includes arc, inverted trapezoidal, in addition, pros can also be used Shape, rectangle, V-type.

Step 4: the connecting anti-leak edge on opaque liquid bottom or/and absorbed layer the step of.

Step 5: the step of cutting off arc calf circumference excess stock.

Step 6: the process for cutting into monolithic, FOLD AND PACK.

In the elastic non-woven area 22 of step 2, diversion groove non-woven cloth area 21 using non-woven cloth as base Material, the nonwoven substrate are integrally formed, wherein and the nonwoven substrate belongs to industry prior art material, including The molding Through-Air Thermal Bonded Nonwovens of hot wind, the spun-bonded non-woven of melt-spun spunbond technological forming, hot-roll forming Nonwovens Or spun lacing/needle pierces molding non-woven cloth, the spandex thread also belongs to the current material of industry.

Embodiment 9

As shown in attached drawing 16, Figure 17, the present embodiment and embodiment 5 the difference is that, the absorption that the present embodiment uses Layer overlaps built-up two layers of absorptive core and clean paper layer by dust-free paper 10, the above absorptive core 9a and lower absorptive core 9b 10, it is compound and be linked together by adhesive layer from top to bottom.

The present embodiment makes high-selenium corn product according to the machining process of embodiment 6, wherein in step 2, by liquid Dust-free paper corresponding position part on longitudinal diffusion guiding region 91 cuts removal, as shown in Fig. 16, forms genesis analysis rail Mark and the consistent hollow out item 12 in liquid longitudinal diffusion guiding region 91, the transverse width of the hollow out item 12, which is less than liquid longitudinal diffusion, leads Flow the width in area 91.After the hot-forming diversion groove by step 3, is formed in the trough rim of diversion groove and turned as excessive Move the dust-free paper of absorber.The embodiment will not influence diversion groove elastic liquid permeability surface layer 2 and liquid in hot pressing The generation of hot sticky node, is firmly bonded between fluffy fiber network in longitudinal diffusion guiding region 91, will not pushing away with the time Shifting is separated from each other or loosely.

In addition, the present embodiment can not also carry out 12 working process of hollow out item to dust-free paper, but use dust-free paper point The upper epidermis of cloth and absorptive core, layer directly carry out gluing combined processing.

Although the utility model describes specific case study on implementation, the scope of the utility model is not limited to Specific embodiment is stated, in the case where not departing from the utility model in essence, to the various modifications of the utility model, variations and alternatives Each fall within protection scope of the present invention.

Claims (9)

1. a kind of high-selenium corn high diffusivity absorbent article comprising liquid permeability surface layer, opaque liquid bottom and is located at liquid permeability surface layer With the absorbed layer between opaque liquid bottom, the absorbed layer includes absorptive core, and the absorptive core is along its longitudinal direction packet Include at least one liquid longitudinal diffusion guiding region and around the absorber area of liquid longitudinal diffusion guiding region setting, institute Liquid longitudinal diffusion guiding region is stated between absorber area, and is connected to adjacent absorber area；The absorber area includes Meldable fibre network structure layer and it is entrenched in super absorbent resin in the meldable fibre network structure layer in fiber mesh；Institute Stating liquid longitudinal diffusion guiding region is to pass through interspersed winding building with height curling hot-melt fiber or/and scroll pile pulp fibres At fluffy fiber network, in liquid longitudinal diffusion guiding region junction adjacent with the absorber area, the fluffy fiber net High curling hot-melt fiber or/and scroll pile pulp fibres in network are mutually twined with the meldable fibre in fibrillar meshwork structure layer It being connected as one around, obvolvent, it is characterised in that: the liquid permeability surface layer is that have the elastic liquid permeability surface layer of spring function, It is equipped on elasticity liquid permeability surface layer corresponding with liquid longitudinal diffusion guiding region along liquid longitudinal diffusion guiding region direction The diversion groove of extension, the diversion groove is by under thickness direction of the elastic liquid permeability surface layer along liquid longitudinal diffusion guiding region It presses and is formed by baltimore groove on liquid longitudinal diffusion guiding region, and the diversion groove breadth, length are respectively smaller than Transverse width, the longitudinal length of liquid longitudinal diffusion guiding region.

2. high-selenium corn high diffusivity absorbent article according to claim 1, it is characterised in that: the distribution number of the diversion groove Amount is two, is symmetric on absorptive core, shape includes linear type, arc line shaped, fold-line-shaped and x-ray shape.

3. high-selenium corn high diffusivity absorbent article according to claim 1 or 2, it is characterised in that: the cross of the diversion groove Cross sectional shape includes inverted trapezoidal, square, rectangle, V-type or arc.

4. high-selenium corn high diffusivity absorbent article according to claim 1, it is characterised in that: the elasticity liquid permeability surface layer packet Elastic non-woven area and diversion groove non-woven cloth area are included, the elastic non-woven area is around diversion groove non-woven cloth area Distribution；Using non-woven cloth as substrate, which is for the elastic non-woven area, diversion groove non-woven cloth area It is made of one piece, the elastic non-woven area is to be compounded with spandex thread on the endosexine of nonwoven substrate and have bullet Property non-woven cloth, nonwoven substrate does not have elasticity in diversion groove non-woven cloth area.

5. high-selenium corn high diffusivity absorbent article according to claim 4, it is characterised in that: the spandex thread non-is knitted along described Cloth width direction or the setting of length direction interval are made, spacing distance 0.5-5cm, the draw ratio of the spandex thread is 1.1-3.5.

6. high-selenium corn high diffusivity absorbent article according to claim 3, it is characterised in that: along the side of the diversion groove Side and/or bottom also set up permeability hole, and the shape of the permeability hole includes circle, ellipse, star, diamond shape, triangle and back taper Shape.

7. high-selenium corn high diffusivity absorbent article according to claim 1, it is characterised in that: it is described elasticity liquid permeability surface layer be Spunbond elastic non-woven.

8. high-selenium corn high diffusivity absorbent article according to claim 1, it is characterised in that: it is described elasticity liquid permeability surface layer be Spun lacing elastic non-woven.

9. high-selenium corn high diffusivity absorbent article according to claim 4, it is characterised in that: the elasticity liquid permeability surface layer packet Single jersey elastic liquid permeability surface layer, two-sided elastic liquid permeability surface layer are included, is set on the non-woven cloth of the interval region of adjacent spandex thread It is equipped with salient point or taper permeability hole.