CN103349591B - Absorbing product and manufacturing method - Google Patents
Absorbing product and manufacturing method Download PDFInfo
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- CN103349591B CN103349591B CN201310273812.9A CN201310273812A CN103349591B CN 103349591 B CN103349591 B CN 103349591B CN 201310273812 A CN201310273812 A CN 201310273812A CN 103349591 B CN103349591 B CN 103349591B
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Abstract
The invention discloses a method for manufacturing an absorbing product, which comprises: providing a base body of the absorbing product; providing a double-deck branch pipe; inserting a forming end of the double-deck branch pipe down into the base body from an outer surface of the base body, injecting a certain amount of fluidized wall materials in the base body from a first chamber of an injection end of the double-deck branch pipe, the fluidized wall materials gradually solidifying after in contact with the base body at the room temperature, then injecting core materials to the gradually solidified wall materials from the injection end of the double-deck branch pipe; separating the double-deck branch pipe from the base body, left holes on the gradually solidified wall materials arranged in the base body gradually converging till sealing along with the continuous solidification of the wall materials, and forming a phase change temperature adjusting micro-capsule in which the core materials in the base body is sealed by the wall materials. In the inventive method, phase-transition materials are prevented from being immersed into fiber when in a liquid state, and the fiber agglomeration after solidification are prevented from being hardening, thereby effectively improving the softness and comfort level of a fiber layer of the absorbing product.
Description
Technical field
The present invention relates to absorbent article, particularly relate to a kind of absorbent article and the manufacture method of alleviating the sultry discomfort of absorbent article use procedure.
Background technology
Absorbent article comprises feminine hygiene, such as sanitary towel, sanitary pad, tampon and sanitation underwear, diaper, urine pants, incontinence pad and diaper liner etc. that baby and adult use, be generally be placed in skin against user for absorbing and storing body fluid, thus prevent body fluid soiled laundry.But in absorbent article use procedure, along with gathering of service time and body fluid, user has the sensation of the discomfort of sultry humidity.The subenvironment heat of this sense of discomfort mainly body part distributes not in time, can not reach consistent with the temperature at other position, local temperature is caused to raise, or the moment that human body fluid flows out, the rehydration temperature flowed out in body can higher than shell temperature, thus makes local temperature and the of short duration rising of humidity.
In absorbent article, the compound of similar menthol is added in prior art, cold receptor on chafe, thus make user feel refrigerant when use absorbent article, but reality does not have cooling effect, and life-time service also can cause skin allergy.Or use more ventilative material instead at the liquid-tight bottom of absorbent article, but its top flat, the main region heat radiation of sandwich layer heat production and heat accumulation is still comparatively slow, does not fundamentally solve the sultry sense of discomfort produced in absorbent article use procedure.
At present, the adjustment being applied to by phase-change material and carrying out temperature in absorbent article is had in prior art.Phase-change material is in certain temperature range, utilizes the phase of material own or structure change, to environment automatic absorption or release latent heat, thus reaches a class material of regulating and controlling temperature.Now phase-change material is applied directly in non-woven fabrics top flat by more existing technology, although can suitably solve sultry sense of discomfort, if but phase-change material selects is solid-liquid phase change, when phase-change material becomes liquid state, phase-change material can immerse in fiber capillary, when phase-change material becomes solid-state again, the phenomenon that non-woven fabrics top flat fiber can harden, thus affect the comfortableness of top layer of absorbent products material.
Summary of the invention
In view of this, provide a kind of and alleviate absorbent article of the sultry discomfort of absorbent article use procedure and preparation method thereof in fact for necessary.
A manufacture method for this absorbent article, the method comprises the steps:
The matrix of one absorbent article is provided;
Pair of lamina sleeve pipe is provided, described bilayer sleeve comprises interior pipe and is enclosed within the outer tube outside interior pipe, toroidal cavity is formed between interior pipe and outer tube, wherein, described toroidal cavity is the first chamber of described bilayer sleeve, the tube chamber of described interior pipe is the second chamber of described bilayer sleeve, and described bilayer sleeve has relative injection end and forming ends;
The forming ends of described bilayer sleeve is inserted into downwards matrix from described outer surface of matrix, to described matrix, a certain amount of fluidised wall material is injected from the first chamber of described bilayer sleeve injection end, the matrix that described fluidised wall material touches under room temperature solidifies gradually, then, to the wall material solidified gradually, core is injected from the second chamber of described bilayer sleeve injection end, wherein, described core is phase transition temperature is the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change, and described wall material is the noncrystal class material do not mixed with core;
Described bilayer sleeve is departed from described matrix, and being built in the hole that the wall material solidified gradually in matrix retains can converge until close gradually along with the continuation solidification of wall material, forms the phase-changing and temperature-regulating microcapsule that the core be built in matrix is closed by wall material parcel.
Compared with prior art, absorbent article of the present invention, by phase-change material is wrapped up as capsule-core the mode be enclosed in phase-changing and temperature-regulating microcapsule, effective prevention phase-change material immerses when liquid state in fiber capillary, the phenomenon making again fiber harden after solidification occurs, thus effectively improves the fibrolaminar soft comfortable of absorbent article.
Accompanying drawing explanation
The structural representation of the absorbent article that Fig. 1 provides for embodiment of the present invention.
Fig. 2 is the profile of II-II line in Fig. 1.
A kind of structural representation of the bilayer sleeve used in the manufacture method of Fig. 3 for absorbent article provided by the present invention.
Fig. 4 is for utilizing the working state schematic representation of the built-in phase-changing and temperature-regulating microcapsule in absorbent article of the bilayer sleeve shown in Fig. 3.
The another kind of structural representation of the bilayer sleeve used in the manufacture method of Fig. 5 for absorbent article provided by the present invention.
Main element symbol description
Liquid permeable top sheet 10
Absorptive core 20
Opaque liquid egative film 30
Outer edge portion 40
Alar part 50
Absorbent article 100
Matrix 101
Phase-changing and temperature-regulating microcapsule 200
Cyst wall 201
Capsule-core 202
Bilayer sleeve 300
Outer tube 301
Interior pipe 302
First chamber 303
Second chamber 304
Injection end 305
Forming ends 306
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Refer to shown in Fig. 1 and Fig. 2, absorbent article 100 provided by the present invention, it comprises matrix 101, and the phase-changing and temperature-regulating microcapsule 200 using phase-change material as core built-in in described matrix 101.
In the present embodiment, described matrix 101 comprises the liquid permeable top sheet 10, absorptive core 20 and the opaque liquid egative film 30 that stack gradually from top to bottom along its thickness direction; Outer edge portion 40 and alar part 50 is also comprised along matrix 101 horizontal direction.
Understandable, in other embodiment of the present invention, described matrix 101 also can not comprise outer edge portion 40 and alar part 50.Also be appreciated that the design according to products perfection, this matrix also can comprise some common structures improved, and such as can assist the structure accelerating to absorb or the structure etc. preventing reverse osmosis.
Understandable, due to when described absorbent article 100 uses, described liquid permeable top sheet 10 needs and user direct skin contact, and therefore the Material selec-tion transparent liquid of described liquid permeable top sheet 10 is functional and have the material of a softer and smoother touch sense of touch.Preferably, the material of described liquid permeable top sheet 10 is non-woven material.
Described opaque liquid egative film 30 is for stopping that the liquid in described absorptive core 20 continues downward seepage.In the present invention, the material forming opaque liquid egative film 30 is not particularly limited, as long as to can be used in absorbent article 100 and can stop that the material that the liquid of absorptive core 20 continues downward seepage all may be used in the present invention.
Described absorptive core 20 is folded between liquid permeable top sheet 10 and opaque liquid egative film 30, for absorbing the liquid permeated from described liquid permeable top sheet 10.Preferably, the material of described absorptive core 20 is absorbent non-woven material, foamed materials, synthetic fibers etc.Understandable, in order to improve the ability of the absorbing fluid of absorbent article 100 further, the material of described absorptive core 20, except above-mentioned preferred material, also can comprise high molecular material of high water absorption.
Described outer edge portion 40 refers to and seals with described opaque liquid egative film 30 the nonabsorbable part formed by described liquid permeable top sheet 10, is positioned at the external boundary place of absorbent article 100.
Described alar part 50 refers to that the longitudinal edge of absorptive core 20 is located and the part of horizontal expansion, in order to fixing clothes.
Described phase-changing and temperature-regulating microcapsule 200 comprises cyst wall 201 and capsule-core 202.Wherein, the material of described capsule-core 202 is phase transition temperature is the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change.
In the present invention, by being that the phase-changing and temperature-regulating microcapsule 200 that the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change are core is built in absorbent article 100 with phase transition temperature, the phase-change characteristic that can make full use of phase-change material carries out the regulation and control of temperature to absorbent article 100.Preferably, described solid-liquid phase change material is selected from one or more in n-octadecane, AI3-36122, AI3-28404, Heneicosane, butyl stearate, lauric acid, octadecane, isopropyl palmitate; Described solid-solid phase change material is selected from one or more in 6 calcium chloride hydrate, tetramethylolmethane/montmorillonite-based nano composite phase-change material.
The cyst wall 201 of described phase-changing and temperature-regulating microcapsule 200 needs wrap up and close capsule-core 202, that is cyst wall 201 has the effect preventing capsule-core 202 to run off to external migration, so make capsule-core 202 be closed in cyst wall 201 form seal cavity in and do not produce migration run off.Understandable, described wall material and core can not dissolve each other.
Known, crystal has from plasticity, and noncrystal not from plasticity.From plasticity, what is called refers to that crystalline solid is under suitable crystallization condition, crystal can spontaneously present multi-plane shape or not have the character of irregular figure.Because described phase-changing and temperature-regulating microcapsule 200 is built in absorbent article 100 matrix 101, so the cyst wall 201 of described phase-changing and temperature-regulating microcapsule 200 should smoothly without the comfortableness of corner angle guarantee user when using described absorbent article 100.So, the wall material selected in the present embodiment is the noncrystal class material do not mixed with core, preferred thermoplastic resin, such as polyethylene, polypropylene, polrvinyl chloride, polystyrene.
The wall material selected in other embodiments also can be thermosetting resin, such as unsaturated polyester resin, epoxy resin, phenolic resins.
In the present embodiment, described phase-changing and temperature-regulating microcapsule 200 is built in the absorptive core 20 of described matrix 101, and described phase-changing and temperature-regulating microcapsule 200 diameter of section is in the scope of 0.2mm to 3mm.Understandable, in absorbent article 100 provided by the present invention, the position of described phase-changing and temperature-regulating microcapsule 200 is the closer to user skin, and thermoregulation effect is better.Therefore, when described phase-changing and temperature-regulating microcapsule 200 is built in described absorptive core 20, preferably, distance between described phase-changing and temperature-regulating microcapsule 200 and described liquid permeable top sheet 10 is less than or equal to 2/3 of described absorptive core 20 thickness, preferred, its distance is greater than 1/6 of absorptive core 20 thickness and is less than 1/2 of absorptive core 20 thickness.
Due to described liquid permeable top sheet 10 and user direct skin contact, the phase-changing and temperature-regulating microcapsule 200 be built in liquid permeable top sheet 10 more easily undergoes phase transition to realize thermoregulatory effect, so in other embodiments, also can in described liquid permeable top sheet 10 built-in phase-changing and temperature-regulating microcapsule 200.Certainly, also alternative phase-changing and temperature-regulating microcapsule 200 is built in matrix outer edge portion 40 and alar part 50 in one or more positions.
Shown in Fig. 3 and Fig. 4, embodiment of the present invention additionally provides the manufacture method of above-mentioned absorbent article 100, and it comprises the steps:
A () provides the matrix 101 of an absorbent article 100.
In the present embodiment, described matrix 101 comprises the liquid permeable top sheet 10, absorptive core 20 and the opaque liquid egative film 30 that stack gradually from top to bottom along its thickness direction; Outer edge portion 40 and alar part 50 is also comprised along matrix 101 horizontal direction.
Understandable, in other embodiment of the present invention, the structure of described matrix 101 can change according to different product designs, such as, described matrix 101 can only include the liquid permeable top sheet 10, absorptive core 20 and the opaque liquid egative film 30 that stack gradually from top to bottom along its thickness direction.Other in absorbent article 100 matrix 101 structure commonly used, such as flow-guiding structure, counnter attack infiltration structure etc. is all applicable in the present invention.
B () provides pair of lamina sleeve pipe 300, the outer tube 301 that described bilayer sleeve 300 comprises interior pipe 302 and is enclosed within outside described interior pipe 302, toroidal cavity is formed between interior pipe 302 and outer tube 301, wherein, described toroidal cavity is the first chamber 303 of described bilayer sleeve 300, the tube chamber of described interior pipe 302 is the second chamber 304 of described bilayer sleeve 300, described bilayer sleeve 300 has relative injection end 305 and forming ends 306, wherein, described injection end 305 for injecting wall material and core in described matrix 101, described forming ends 306 is for being inserted in described matrix 101 to form phase-changing and temperature-regulating microcapsule 200 in described matrix 101.
In the present embodiment, the interior pipe 302 of the forming ends 306 of described bilayer sleeve 300 is flat-top shape with the end of outer tube 301, and the diameter of described outer tube 301 cross section is in the scope of 0.1mm to 2.5mm, phase-changing and temperature-regulating microcapsule 200 diameter of section utilizing this bilayer sleeve 300 to be formed in absorptive core is in the scope of 0.2mm to 3mm.Certainly, the diameter of the cross section of described outer tube 301 can also need according to the making of different product and change accordingly, such as, utilize described bilayer sleeve 300 in described liquid permeable top sheet 10 during built-in phase-changing and temperature-regulating microcapsule 200, because liquid permeable top sheet 10 is thinner, can the diameter of described outer tube 301 cross section be arranged in less scope, such as the diameter of described outer tube 301 cross section is arranged in the scope of 0.1mm to 0.5mm, so produces less phase-changing and temperature-regulating microcapsule 200 and be built in completely in liquid permeable top sheet 10 to facilitate it.
C the forming ends 306 of described bilayer sleeve 300 is downwardly inserted into matrix 101 from described matrix 101 by (), to described matrix 101, a certain amount of fluidised wall material is injected from the first chamber 303 of described bilayer sleeve 300 injection end 305, the matrix 101 that described fluidised wall material touches under room temperature solidifies gradually, then, to the wall material solidified gradually, core is injected from the second chamber 304 of described bilayer sleeve 300 injection end 305, wherein, described core is phase transition temperature is the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change, described wall material is the noncrystal class material do not mixed with core.
In the present embodiment, described phase-changing and temperature-regulating microcapsule 200 is formed in the absorptive core 20 of described matrix 101, and present embodiment provides the bilayer sleeve 300 of two kinds of different structures to make phase-changing and temperature-regulating microcapsule 200.
The first structure of described bilayer sleeve 300: described bilayer sleeve 300 comprises interior pipe 302 and is enclosed within outside described interior pipe 302 and the relatively-stationary outer tube 301 of interior pipe 302, toroidal cavity is formed between described interior pipe 302 and outer tube 301, wherein, described toroidal cavity is the first chamber 303 of described bilayer sleeve 300, the tube chamber of described interior pipe 302 is the second chamber 304 of described bilayer sleeve 300, the diameter of described outer tube 301 cross section is in the scope of 0.1mm to 2.5mm, described bilayer sleeve 300 has relative injection end 305 and forming ends 306, wherein, described injection end 305 for injecting wall material and core in described matrix 101, described forming ends 306 is for being inserted in described matrix 101 to form phase-changing and temperature-regulating microcapsule 200 in described matrix 101, at described forming ends 306, the end of described interior pipe 302 protrudes from the end of outer tube 301, the interior pipe 302 of the forming ends 306 of described bilayer sleeve 300 is flat-top shape with the end of outer tube 301.
The concrete steps utilizing the bilayer sleeve 300 of the first structure to form phase-changing and temperature-regulating microcapsule 200 in described absorptive core 20 are:
First, the forming ends 306 of described bilayer sleeve 300 is inserted in absorptive core 20 through described liquid permeable top sheet 10, the through hole that one longitudinally runs through liquid permeable top sheet 10 can be retained on its surface when utilizing described bilayer sleeve 300 to pass described liquid permeable top sheet 10, because the diameter of outer tube 301 cross section of described bilayer sleeve 300 is smaller, so the through-hole aperture remained in described liquid permeable top sheet 10 is also smaller, the existence of described through hole does not affect the normal use of absorbent article 100, can ignore, in like manner, the hole formed in described absorptive core 20 also can be ignored.
In other embodiments, through hole is retained on the surface of liquid permeable top sheet 10 in manufacturing process, the forming ends 306 of bilayer sleeve 300 directly can be inserted in absorptive core 20 and to make phase-changing and temperature-regulating microcapsule 200 in absorptive core 20, be folded in by the absorptive core being built-in with phase-changing and temperature-regulating microcapsule 200 between liquid permeable top sheet 10 and opaque liquid egative film 30 and form described absorbent article 100, prerequisite is liquid permeable top sheet 10, absorptive core 20 and the opaque liquid egative film 30 in described matrix 101 is separable.
Then, be injected in described absorptive core 20 by being heated to first chamber 303 of fluidised wall material by described bilayer sleeve 300, due at described forming ends 306, the end of described interior pipe 302 protrudes from the end of outer tube 301, therefore, when wall material is injected into after in described absorptive core 20 by the first chamber 303 of described bilayer sleeve 300, wall material can be wrapped in the end of described interior pipe 302, and along with the change of ambient temperature, the fluidised wall material being wrapped in described inner pipe end can solidify gradually.
Afterwards, second chamber 304 of core by described bilayer sleeve 300 is injected in the wall material solidified gradually.
The second structure of described bilayer sleeve 300: the outer tube 301 that described bilayer sleeve 300 comprises interior pipe 302 and is enclosed within outside described interior pipe 302, described interior pipe 302 can move up and down relative to outer tube 301, toroidal cavity is formed between interior pipe 302 and outer tube 301, wherein, described toroidal cavity is the first chamber 303 of described bilayer sleeve 300, the tube chamber of described interior pipe 302 is the second chamber 304 of described bilayer sleeve 300, the diameter of described outer tube 301 cross section is in the scope of 0.1mm to 2.5mm, described bilayer sleeve 300 has relative injection end 305 and forming ends 306, wherein, described injection end 305 for injecting wall material and core in described matrix 101, described forming ends 306 is for being inserted in described matrix 101 to form phase-changing and temperature-regulating microcapsule 200 in described matrix 101, the interior pipe 302 of the forming ends 306 of described bilayer sleeve 300 is flat-top shape with the end of outer tube 301.
The concrete steps utilizing the bilayer sleeve 300 of the second structure to form phase-changing and temperature-regulating microcapsule 200 in described absorptive core 20 are:
First, the forming ends 306 of described bilayer sleeve 300 is inserted in absorptive core 20 through described liquid permeable top sheet 10.
Then, first pipe 302 in described bilayer sleeve is moved up relative to outer tube 301 until the forming ends 306 of described interior pipe 302 moves in outer tube 301; Be injected in described absorptive core 20 by being heated to first chamber 303 of fluidised wall material by described bilayer sleeve 300 again, described fluidised wall material can solidify gradually and in absorptive core 20, form a wall material aggregation gradually touching the fiber under room temperature in absorptive core 20.
Afterwards, pipe 302 in described bilayer sleeve 300 is moved down relative to outer tube 301 until described interior pipe 302 forming ends 306 inserts in the wall material aggregation of absorptive core 20, and core is injected into by the second chamber 304 of described bilayer sleeve 300 in the wall material aggregation solidified gradually.
Understandable, described interior pipe 302 is set to relative outer tube 301 structure moving up and down and the mode such as slide rail or spring can be utilized to realize, certainly, the interior pipe 302 of described bilayer sleeve 300 in other embodiments can separate separately with outer tube 301, be used alone outer tube 301 when namely injecting wall material, just described interior pipe 302 be inserted in outer tube 301 during core to be implanted and prepare phase-changing and temperature-regulating microcapsule 200.
Pipe 302 end in its forming ends 306 is set to the end protruding from outer tube 301 by the first structure of bilayer sleeve described in the present embodiment, fluidised wall material can be wrapped in interior pipe 302 end being injected into after in absorptive core 20, interior pipe 302 end of outstanding outer tube 301 is then wrapped in the wall material solidified gradually, then inject core to the wall material solidified gradually from the second chamber 304, so form the effect of wall material parcel core.Interior pipe 302 is set to relative to outer tube 301 structure moving up and down by the second structure of described bilayer sleeve 300, this is because when wall material forms wall material aggregation, described interior pipe 302 can to stretch in wall material aggregation and to inject core to form the effect of wall material parcel core to it, thus formation phase-changing and temperature-regulating microcapsule 200.
Core selected by present embodiment is phase transition temperature is the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change, and wherein said solid-liquid phase change material is selected from one or more in n-octadecane, AI3-36122, AI3-28404, Heneicosane, butyl stearate, lauric acid, octadecane, isopropyl palmitate; Described solid-solid phase change material is selected from one or more in 6 calcium chloride hydrate, tetramethylolmethane/montmorillonite-based nano composite phase-change material; The wall material selected is noncrystal class material, preferred thermoplastic resin or the thermosetting resin that do not mix with core.
Certainly, when described core selects phase transition temperature to be the phase-change material of the solid-liquid phase change of 0-40 DEG C, in order to allow core can smoothly by described bilayer sleeve 300 second chamber 304, preferably, before this phase-change material is injected in the second chamber 304 by described bilayer sleeve 300 in described absorptive core 20, described core is heated.Also phase-change material can be made powder to be in other embodiments injected in absorptive core 20 with second chamber 304 of solid-state form by described bilayer sleeve 300.
D described bilayer sleeve 300 is departed from described matrix 101 by (), be built in the hole that the wall material solidified gradually in matrix 101 retains to converge gradually until close along with the continuation solidification of wall material, form the phase-changing and temperature-regulating microcapsule 200 that the core be built in matrix is closed by wall material parcel.
In the present embodiment, described phase-changing and temperature-regulating microcapsule 200 is built in the absorptive core 20 of described matrix 101.After described bilayer sleeve 300 is departed from the wall material solidified gradually, on described wall material, former bilayer sleeve 300 insert division has retained a hole, due to described wall material also incomplete completion of cure, therefore solidify along with the continuation of wall material, hole can converge gradually until it is completely closed, so forms the phase-changing and temperature-regulating microcapsule 200 that core is closed by wall material parcel.
The so obtained absorbent article 100 being built-in with phase-changing and temperature-regulating microcapsule 200, utilize the solid-liquid phase change effect of phase-change material to environment automatic absorption heat to reach the object of regulating and controlling temperature, and utilize bilayer sleeve 300 obtained phase-changing and temperature-regulating microcapsule 200 phase-change material parcel can be closed in cyst wall 201.Such design can avoid phase-change material infiltrated fiber when liquid state, and the phenomenon making again fibre agglomerates harden after solidification occurs, and effectively improves the fibrolaminar soft comfortable of absorbent article 100.
In the present embodiment, the interior pipe 302 of the forming ends 306 of described bilayer sleeve 300 is flat-top shape with the end of outer tube 301.Understandable, can be inserted in described matrix 101 more smoothly in order to the forming ends 306 of described bilayer sleeve 300 can be allowed, the interior pipe 302 of the forming ends 306 of described bilayer sleeve 300 also can be other shape with the end of outer tube 301, sharp cutting edge of a knife or a sword shape as shown in Figure 5.
In order to make described absorbent article 100, there is better thermoregulatory effect, more phase-change material can be injected by the second chamber of described interior pipe 302 segment dislocation, the diameter of described interior pipe 302 cross section can adjust according to the addition of phase-change material, preferably, described interior pipe 302 cross section diameter and outer tube 301 cross-sectional diameter ratio be greater than 1/2.
Understandable, in absorbent article 100 provided by the present invention, the position of described phase-changing and temperature-regulating microcapsule 200 is the closer to user skin, and thermoregulation effect is better.Therefore, when described phase-changing and temperature-regulating microcapsule 200 is built in described absorptive core 20, preferably, distance between described phase-changing and temperature-regulating microcapsule 200 and described liquid permeable top sheet 10 is less than or equal to 2/3 of described absorptive core 20 thickness, preferred, its distance is greater than 1/6 of absorptive core 20 thickness and is less than 1/2 of absorptive core 20 thickness.
Due to described liquid permeable top sheet 10 and user direct skin contact, the phase-changing and temperature-regulating microcapsule 200 be built in liquid permeable top sheet 10 more easily undergoes phase transition to realize thermoregulatory effect, so in other embodiments, also can in described liquid permeable top sheet 10 built-in phase-changing and temperature-regulating microcapsule 200.Certainly, also alternative phase-changing and temperature-regulating microcapsule 200 is built in matrix outer edge portion 40 and alar part 50 in one or more positions.
Compared with prior art, absorbent article 100 of the present invention, by phase-change material is wrapped up as capsule-core 202 mode be enclosed in phase-changing and temperature-regulating microcapsule 200, effective prevention phase-change material immerses when liquid state in fiber capillary, the phenomenon making again fiber harden after solidification occurs, thus effectively improves the fibrolaminar soft comfortable of absorbent article 100.
In addition, those skilled in the art also can make various amendments in other form and details, interpolation and replacement in the claims in the present invention scope of disclosure and spirit.Certainly, the changes such as these various amendments made according to the present invention's spirit, interpolation and replacement, all should be included within the present invention's scope required for protection.
Claims (12)
1. a manufacture method for absorbent article, the method comprises the steps:
The matrix of one absorbent article is provided;
Pair of lamina sleeve pipe is provided, described bilayer sleeve comprises interior pipe and is enclosed within the outer tube outside interior pipe, toroidal cavity is formed between interior pipe and outer tube, wherein, described toroidal cavity is the first chamber of described bilayer sleeve, the tube chamber of described interior pipe is the second chamber of described bilayer sleeve, and described bilayer sleeve has relative injection end and forming ends;
The forming ends of described bilayer sleeve is inserted into downwards matrix from described outer surface of matrix, to described matrix, a certain amount of fluidised wall material is injected from the first chamber of described bilayer sleeve injection end, the matrix that described fluidised wall material touches under room temperature solidifies gradually, then, to the wall material solidified gradually, core is injected from the second chamber of described bilayer sleeve injection end, wherein, described core is phase transition temperature is the solid-liquid phase change of 0-40 DEG C or the phase-change material of solid-solid phase change, and described wall material is the noncrystal class material do not mixed with core;
Described bilayer sleeve is departed from described matrix, and being built in the hole that the wall material solidified gradually in matrix retains can converge until close gradually along with the continuation solidification of wall material, forms the phase-changing and temperature-regulating microcapsule that the core be built in matrix is closed by wall material parcel.
2. the manufacture method of absorbent article as claimed in claim 1, is characterized in that: the diameter of described outer tube cross section is in the scope of 0.1mm to 2.5mm.
3. the manufacture method of absorbent article as claimed in claim 2, is characterized in that: the diameter of described interior pipe cross section and outer tube cross-sectional diameter ratio be greater than 1/2.
4. the manufacture method of absorbent article as claimed in claim 1, is characterized in that: the interior pipe of the forming ends of described bilayer sleeve and the end of outer tube are flat-top shape.
5. the manufacture method of absorbent article as claimed in claim 1, is characterized in that: the interior pipe of the forming ends of described bilayer sleeve and the end of outer tube are sharp cutting edge of a knife or a sword shape.
6. the manufacture method of absorbent article as claimed in claim 1, it is characterized in that: described bilayer sleeve outer tube is relative with interior pipe fixing, and at described forming ends, the end of described interior pipe protrudes from the end of outer tube.
7. the manufacture method of absorbent article as claimed in claim 1, is characterized in that: the relative outer tube of described interior pipe moves up and down.
8. the manufacture method of absorbent article as claimed in claim 1, it is characterized in that: when described core selects phase transition temperature to be the phase-change material of the solid-liquid phase change of 0-40 DEG C, the step comprising and described core is heated that takes a step forward utilizing described second chamber to inject this core in described matrix.
9. the manufacture method of absorbent article as claimed in claim 1, is characterized in that: phase-changing and temperature-regulating microcapsule diameter of section built-in in described matrix is in the scope of 0.2mm to 3mm.
10. the manufacture method of absorbent article as claimed in claim 9, it is characterized in that: described matrix comprises the liquid permeable top sheet, absorptive core and the opaque liquid egative film that stack gradually from top to bottom along matrix thickness direction, also comprise the outer edge portion along matrix horizontal direction and alar part, described phase-changing and temperature-regulating microcapsule selectivity is built in the one or more positions in liquid permeable top sheet, absorptive core, outer edge portion and alar part.
The manufacture method of 11. absorbent articles as claimed in claim 10, it is characterized in that: described phase-changing and temperature-regulating microcapsule is built in described absorptive core, the distance between described phase-changing and temperature-regulating microcapsule and liquid permeable top sheet is less than or equal to 2/3 of absorptive core thickness.
The manufacture method of 12. absorbent articles as claimed in claim 10, it is characterized in that: described phase-changing and temperature-regulating microcapsule is built in described absorptive core, the distance between described phase-changing and temperature-regulating microcapsule and liquid permeable top sheet is greater than 1/6 of absorptive core thickness and is less than 1/2 of absorptive core thickness.
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| CN201310273812.9A CN103349591B (en) | 2013-07-02 | 2013-07-02 | Absorbing product and manufacturing method |
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| CN201310273812.9A CN103349591B (en) | 2013-07-02 | 2013-07-02 | Absorbing product and manufacturing method |
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|---|---|---|---|---|
| CN106264893A (en) * | 2015-05-22 | 2017-01-04 | 金红叶纸业集团有限公司 | Temp. controllable absorbent article |
| BR112020023690B1 (en) * | 2018-06-15 | 2023-11-21 | Essity Hygiene And Health Aktiebolag | ABSORBENT ARTICLE AND METHOD OF APPLYING MICROENCAPSULATED PHASE CHANGE MATERIAL TO AN ABSORBENT ARTICLE |
| US11160699B2 (en) | 2018-06-15 | 2021-11-02 | Essity Hygiene And Health Aktiebolag | Absorbent article |
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| KR20060110492A (en) * | 2005-04-20 | 2006-10-25 | 주식회사 엘지생활건강 | Disposable diaper including phase change materials |
| US20070173154A1 (en) * | 2006-01-26 | 2007-07-26 | Outlast Technologies, Inc. | Coated articles formed of microcapsules with reactive functional groups |
| CN101392461B (en) * | 2008-10-15 | 2010-09-01 | 清华大学深圳研究生院 | Phase change energy storage low temperature face mask substrate material and preparation method thereof |
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