CN101803974A - The manufacture method of absorbent commodity and extension apparatus - Google Patents
The manufacture method of absorbent commodity and extension apparatus Download PDFInfo
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- CN101803974A CN101803974A CN201010126108A CN201010126108A CN101803974A CN 101803974 A CN101803974 A CN 101803974A CN 201010126108 A CN201010126108 A CN 201010126108A CN 201010126108 A CN201010126108 A CN 201010126108A CN 101803974 A CN101803974 A CN 101803974A
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- composite sheet
- binding material
- absorbent commodity
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/18—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets by squeezing between surfaces, e.g. rollers
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention provides not to give and bring the manufacture method of the absorbent commodity that damage just can evenly extend at width and be used for the extension apparatus of the manufacture method of absorbent commodity by the binding material a plurality of composite sheet that form of fitting.The manufacture method of absorbent commodity of the present invention has the sheet heating process (S20) of utilizing warm-up mill (510) heating composite sheet (120) and utilizes a pair of mold pressing roll mechanism (520) to go up the sheet extension process (S30) that extends composite sheet (120) at crisscross (CD).In sheet heating process (S20), composite sheet (120) is heated to above the softening point of binding material and is lower than the temperature of softening temperature minimum in a plurality of softening temperature.In sheet extension process (S30), a plurality of protuberances that will constitute mold pressing roll mechanism (520) are heated to above 40 ℃ and be lower than the temperature of the softening point of binding material.
Description
Technical field
The present invention relates to the manufacture method of absorbent commodity and be used for the extension apparatus of the manufacture method of absorbent commodity, this absorbent commodity has composite sheet at least and fits in absorber on the composite sheet, and this composite sheet is utilized binding material to fit a plurality of and formed.
Background technology
The absorbent commodity of sanitary napkin, diaper etc. have the back sheet of liquid permeability surface patch that liquid sees through, opaque liquid that liquid does not see through and be arranged at surface patch and back sheet between absorber.Back sheet is made of bottom thin film, the bottom non-woven fabrics that is arranged at the bottom thin film outside.
Back sheet is an inelastic body, if use like this, then texture is bad, therefore, back sheet is improved the processing of flexibility, texture.Gear extension method (for example with reference to patent documentation 1) is for example disclosed.
The gear extension method is to make back sheet by between the pair of rolls with the gear teeth that is engaged with each other, form concavo-convex method on the thickness direction on the sheet overleaf.Thus, back sheet is deformed into along gear-teeth shapes.Therefore, back sheet extends at width.In addition, back sheet is in the thickness direction attenuation in the result that width extends, so, can reduce the rigidity of back sheet.
But bottom thin film and bottom non-woven fabrics are fitted by binding material, so in the part of part that has applied binding material and uncoated binding material, extent differs widely.Yet, known following method, by the heating gear teeth, sheet heats back sheet when by engaging-in gear teeth overleaf.According to this method, the binding material deliquescing is easy to adapt to the concavo-convex of gear teeth, thereby can reduce to have applied the difference of extent of the part of the extent of part of binding material and uncoated binding material.
Patent documentation 1: TOHKEMY 2002-316359 communique (page 5)
Summary of the invention
But but there are the following problems in above-mentioned gear extension method in the past.That is, sheet becomes soft by making binding material in the short time between the pair of rolls with gear teeth overleaf, thereby must improve the temperature of gear teeth as much as possible or reduce transporting velocity.
In the gear extension method, by be pressed into the weight per unit area that back sheet reduces the bottom non-woven fabrics by gear teeth, therefore, if heat passage insufficient, then produce the inequality of weight per unit area overleaf on the sheet, be easy to produce perforate (hole).In addition, if the temperature of gear teeth is too high, the then fiber heat fusing of bottom non-woven fabrics and hardening, thereby the problem that exists texture to worsen.
Therefore, the object of the present invention is to provide not to give and bring the manufacture method of the absorbent commodity that damage just can evenly extend at width and be used for the extension apparatus of the manufacture method of absorbent commodity by the binding material a plurality of composite sheet that form of fitting.
In order to address the above problem, the present invention has following feature.At first, first feature of the present invention is a kind of manufacture method of absorbent commodity, this absorbent commodity has composite sheet (back sheet 20) and absorber (absorber 30) at least, above-mentioned composite sheet forms by binding material applying a plurality of (for example bottom thin film 20A and bottom non-woven fabrics 20B), this absorber is attached on the above-mentioned composite sheet, described manufacture method has following operation: operation A (sheet heating process S20), utilizes the warm-up mill (warm-up mill 510) that rotates along the throughput direction (operating direction MD) of above-mentioned composite sheet that the above-mentioned composite sheet of carrying along above-mentioned throughput direction is heated; And process B (sheet extension process S30), utilize a pair of mold pressing roll mechanism (mold pressing roll mechanism 520) extending above-mentioned composite sheet, the raised part that this a pair of mold pressing roll mechanism forms a plurality of protuberances (protuberance 532 and protuberance 542) and clips above-mentioned composite sheet chimeric the opposing party between a side raised part in periphery with above-mentioned throughput direction orthogonal crisscross (crisscross CD); In above-mentioned operation A, above-mentioned composite sheet is heated to above the softening point of above-mentioned binding material and is lower than the temperature of softening temperature minimum in the above-mentioned a plurality of softening temperature; In above-mentioned process B, above-mentioned a plurality of protuberances are heated to above 40 degree and are lower than the temperature of the softening point of above-mentioned binding material.
According to feature of the present invention, can provide not to a plurality of composite sheet that form of fitting by binding material and bring the manufacture method of the absorbent commodity that damage just can evenly extend at width and be used for the extension apparatus of the manufacture method of absorbent commodity.
Description of drawings
Fig. 1 is the vertical view of the absorbent commodity 1 of expression present embodiment.
Fig. 2 is the profile (the A-A profile of Fig. 1) of the absorbent commodity 1 of expression present embodiment.
Fig. 3 is the profile (the B-B profile of Fig. 1) of the absorbent commodity 1 of expression present embodiment.
Fig. 4 (a) is the vertical view (one) of the back sheet 20 of expression present embodiment, and Fig. 4 (b) is the amplification profile (the A-A profile of Fig. 4 (a)) of the back sheet 20 of expression present embodiment.
Fig. 5 is the vertical view (its two) of the back sheet 20 of expression present embodiment.
Fig. 6 is the key diagram of manufacture method of the absorbent commodity of present embodiment.
Fig. 7 (a) is the amplification stereogram of a part of the extension apparatus 500 of expression present embodiment, and Fig. 7 (b) is the axial section of the mold pressing roll mechanism 520 of present embodiment.
Fig. 8 is the axonometric chart of the spreading roll mechanism 600 of expression present embodiment.
Symbol description
1... absorbent commodity, 10... surface patch, 20... back sheet, 20A... bottom thin film, 20B... bottom non-woven fabrics, 20E... edge part, 21... extension, 21A... central extension, 21B... extension, end, 21L... part of rarefaction, 21T... compact part, 22... extension not, 30... absorber, 30A... mixed powder, 30B... coating member, 40... waist alar part, 40A... preceding flank section, 40B... rear side alar part, 41... fastening portion, 50... flank section, 51 (51A～51D) ... thread like body, 60... lateral plate, 120... composite sheet, 120A... egative film, 120B... non-woven fabric plate, 120E
1, 120E
2... sidepiece, 500... extension apparatus, 510... warm-up mill, 520... mold pressing roll mechanism, 532,542... protuberance, 600... spreading roll mechanism, the 610... first spread rolls mechanism, 611... first upside are pressed pressure roller, 612... first downside and are pressed that pressure roller, the 620... second spread rolls mechanism, 621... second upside are pressed pressure roller, 622... second downside is pressed pressure roller
The specific embodiment
Manufacture method and extension apparatus to the absorbent commodity of present embodiment describes with reference to the accompanying drawings.In the record of the following drawings, identical or similar part is adopted identical or similar symbol.But, should be noted in the discussion above that accompanying drawing is that schematically the ratio of each size etc. are different with reality.
Therefore, should judge concrete size etc. with reference to following explanation.In addition, size relationship each other, part that ratio is different have certainly also been comprised each other at accompanying drawing.
At first, with reference to the structure of description of drawings by the absorbent commodity 1 of the manufacture method manufacturing of the absorbent commodity of present embodiment.Fig. 1 is the vertical view of the absorbent commodity 1 of expression present embodiment.Fig. 2 is the profile (the A-A profile of Fig. 1) of the absorbent commodity 1 of expression present embodiment.Fig. 3 is the profile (the B-B profile of Fig. 1) of the absorbent commodity 1 of expression present embodiment.In the present embodiment, absorbent commodity 1 is the diaper of deploying type.
Shown in Fig. 1～3, absorbent commodity 1 have towards from the preceding waistline (abdominal part side) of user backward the direction of waistline (posterior dorsal) (hereinafter referred to as length direction L) be the shape of lengthwise.
In addition, absorbent commodity 1 has a pair of lateral region C2 of middle section C1 that comprises absorber 30 described later and the outside that is positioned at middle section C1 with respect to width W at the width W with length direction L-orthogonal.
This absorbent commodity 1 has surface patch 10, back sheet 20 and absorber 30.On absorbent commodity 1, be provided with waist alar part 40 and flank section 50.
Waist alar part 40 is arranged on the Attacking Midfielder's region S1 and low back region S2 on the length direction L.Waist alar part 40 has a pair of preceding flank section 40A that is positioned at Attacking Midfielder's region S1 and a pair of rear side alar part 40B that is positioned at low back region S2.
Preceding flank section 40A forms by the lateral plate 60 that is attached on the back sheet 20 is stretched out towards the width W outside.As substituting of lateral plate 60, preceding flank section 40A also can form by bottom non-woven fabrics 20B is stretched out.
With preceding flank section 40A similarly, rear side alar part 40B forms by lateral plate 60 is stretched out towards the width W outside.With preceding flank section 40A similarly, as substituting of lateral plate 60, rear side alar part 40B also can form by bottom non-woven fabrics 20B is stretched out.On the face that absorber 30 1 sides are set of rear side alar part 40B, be provided for the fastening portion 41 of fastening in Attacking Midfielder's region S1.
Fastening portion 41 is for example formed by the face securing member.At this moment, the face securing member is a male parts, and the zone that the fastening portion 41 of pro-waistline region S 1 wants fastening is as by fastening portion female part being set.If Attacking Midfielder's region S1 is made of non-woven fabrics, then Attacking Midfielder's region S1 self also can play by the effect of fastening portion.
The structure of above-mentioned back sheet 20 is described below with reference to accompanying drawings.Fig. 4 (a) is the vertical view of the back sheet 20 of expression present embodiment.Fig. 4 (b) is the amplification profile (the A-A profile of Fig. 4 (a)) of the back sheet 20 of expression present embodiment.
Shown in Fig. 4 (a), back sheet 20 has extension 21 and extension 22 not.Extension 21 is pushed back sheet 20 by the thickness direction T of sheet 20 overleaf and is formed.That is to say that extension 21 is by extending the zone that the weight per unit area (quality of per unit area) that forms of processing lacks than extension 22 not.
Shown in Fig. 4 (b), extension 21 forms less than the compact part 21T of part of rarefaction 21L by alternately disposing big part of rarefaction 21L of elongation and propagation.Part of rarefaction 21L and compact part 21T with on the length direction L continuously and on width W, arrange a plurality of state configuration.
At this, extension, end 21B needn't non-ly be arranged on the part of lateral region C2, also can be arranged on whole lateral region C2, as shown in Figure 5, also can not be arranged on crotch zone territory S3.In addition, the extension 21A of central authorities also needn't non-ly be arranged on whole middle section C1, as long as be arranged at least a portion of middle section C1, for example as shown in Figure 5, can be arranged on the middle section C1 except the edge portion zone C 4 that comprises edge part 20E that is positioned at the length direction L outside.
This extension 21 is preferably expanded with the multiplying power below 3.0 times with respect to back sheet 20 is implemented to extend the preceding back sheet 20 of processing.In addition, extension 21 is engaging (with reference to Fig. 6) with absorber 30 under by the expanding and the smooth state that flattening on the width W.
At extension 22 not, do not push back sheet 20 at thickness direction T.That is to say that extension 22 is not zones except extension 21 in the back sheet 20.Extension 22 is not arranged at a pair of lateral region C2.
The manufacture method of the absorbent commodity of above-mentioned absorbent commodity 1 is made in explanation with reference to the accompanying drawings.Fig. 6 is the key diagram of manufacture method of the absorbent commodity of present embodiment.
As shown in Figure 6, in the manufacture method of absorbent commodity, make the absorbent commodity 1 that has back sheet 20 and absorber 30 at least.The manufacture method of absorbent commodity comprises that sheet bonding process S10, sheet heating process S20, sheet extension process S30, sheet expanding operation S40, absorber engage operation S50, thread like body arrangement step S60, flank section forms operation S70, waist alar part arrangement step S80 and product cuts off operation S90.
In sheet bonding process S10, adopt binding material (for example hot-melt adhesive), in successive egative film 120A of throughput direction (hereinafter referred to as operating direction MD) feeding bottom thin film 20A and the successive non-woven fabric plate 120B of bottom non-woven fabrics 20B, it is being fitted, forming composite sheet 120.
In sheet heating process S20, utilize warm-up mill 510 heating composite sheet 120 described later.At this moment, composite sheet 120 is heated to above the softening point of binding material and is lower than the temperature of softening temperature (for example bottom thin film 20A) minimum in a plurality of softening temperature.Especially, composite sheet 120 is heated to the temperature of low at least 20 degree of softening temperature minimum in a plurality of softening temperature.
In sheet extension process S30, utilize mold pressing roll described later mechanism 520 to push the composite sheet 120 that has heated at the thickness direction T of composite sheet 120.Thereby, extend composite sheet 120 at the width W of composite sheet 120 (promptly with the orthogonal crisscross CD of operating direction MD), on composite sheet 120, form extension 21 and extension 22 not.At this moment, the protuberance (protuberance 532 and protuberance 542) of mold pressing roll described later mechanism 520 is heated to above 40 degree and is lower than the temperature of the softening point of binding material.
In sheet expanding operation S40, utilize composite sheet 120 expandings (expansion) that spreading roll described later mechanism 600 will extend to the width W outside of composite sheet 120 to becoming flat condition.
Engage among the operation S50 at absorber, on the composite sheet 120 of expanding, engage the absorber 30 that (mounting) engages surface patch 10.
In thread like body arrangement step S60, under the operating direction MD with respect to composite sheet 120 has stretched the state of thread like body 51, this thread like body 51 is configured on the composite sheet 120 corresponding with the width W outside of absorber 30.
Form among the operation S70 in flank section, by the non-woven fabric plate 120B that turns back and stretch out to width W than egative film 120A to width W inboard, 120B encases thread like body 51 with this non-woven fabric plate, and forms flank section 50.
In waist alar part arrangement step S80, flank section 40A before preformed and the rear side alar part 40B that fastening portion 41 has been installed are engaged in composite sheet 120.
Cut off among the operation S90 at product, the composite sheet 120 that disposing absorber 30, flank section 50 and waist alar part 40 along the size that width W cuts into a product, is made absorbent commodity 1.
The structure of the extension apparatus 500 that uses in above-mentioned heating process S20 and sheet extension process S30 is described with reference to the accompanying drawings.Fig. 7 (a) is the amplification stereogram of a part of the extension apparatus 500 of expression present embodiment.Fig. 7 (b) is the axial section of the mold pressing roll mechanism 520 of expression present embodiment.
Shown in Fig. 7 (a), extension apparatus 500 extends this composite sheet 120 on crisscross CD in the composite sheet 120 of carrying fitted egative film 120A and non-woven fabric plate 120B along operating direction MD.In the present embodiment, composite sheet 120 engages by the binding material that utilizes the coating of spin coating pattern.Extension apparatus 500 has warm-up mill 510 and mold pressing roll mechanism 520.
Warm-up mill 510 is arranged on the upstream side of operating direction MD than mold pressing roll mechanism 520.Warm-up mill 510 heated composite sheet 120 before composite sheet 120 is by mold pressing roll mechanism 520 along operating direction MD rotation simultaneously.
The temperature that warm-up mill 510 is configured to be scheduled to.Specifically, warm-up mill 510 has first heating part (not shown), composite sheet 120 is heated to above the softening point of binding material and is lower than the temperature of softening temperature (for example bottom thin film 20A) minimum in a plurality of softening temperature (so-called fusing point).
The composite sheet 120 that 520 pairs in mold pressing roll mechanism has passed through warm-up mill 510 heats and push composite sheet 120 on the thickness direction T of composite sheet 120.The temperature that mold pressing roll mechanism 520 is configured to be scheduled to.Specifically, mold pressing roll mechanism 520 has second heating part (not shown), and a plurality of protuberances described later (protuberance 532 and protuberance 542) are heated to above 40 degree and are lower than the temperature of the softening point of binding material.
Shown in Fig. 7 (b), such mold pressing roll mechanism 520 is made of pair of rolls mechanism, and this pair of rolls mechanism forms a plurality of protuberances (so-called extension sword) in periphery, is entrenched between a side the protuberance 532 at the protuberance 542 of the opposing party under the state that clips composite sheet 120.
The shape of protuberance 532 and protuberance 542 periphery from roller mechanism in the section of the axis direction of roller mechanism is tapered toward the outer side.In the present embodiment, the shape of protuberance 532 and protuberance 542 is general triangular in the section of the axis direction of roller mechanism.
In such extension apparatus 500, for example the temperature of warm-up mill 510 is 100 degree.The temperature of mold pressing roll 520 is 60 degree.Be 1.6mm along length (L) when protuberance 532 and protuberance 542 are chimeric with the orthogonal direction of axis direction of roller mechanism.The interval (p2) of the interval of a plurality of protuberances 532 (p1) and a plurality of protuberance 542 is 2.5mm.According to this condition, extension apparatus 500 can be implemented 1.3 times expansion processing with respect to composite sheet 120 being implemented extend the preceding composite sheet of processing 120.
In extension apparatus 500,, can change the multiplying power (extension ratio) that composite sheet 120 is extended on width W by suitably changing above-mentioned each condition.In addition, also can be different with the height of the corresponding protuberance 532 of the middle section C1 of composite sheet 120 and lateral region C2, protuberance 542.Thus, can change extension ratio among the middle section C1 and the extension ratio among the lateral region C2.
Structure to the spreading roll mechanism 600 that uses in above-mentioned expanding operation S40 describes with reference to the accompanying drawings.Fig. 8 is the axonometric chart of the spreading roll mechanism 600 of expression present embodiment.
As shown in Figure 8, spreading roll mechanism 600 will become flat condition by composite sheet 120 expandings that mold pressing roll mechanism 520 has extended towards the crisscross CD outside of composite sheet 120.As a result, the extension 21 (part of rarefaction 21L and compact part 21T) that is arranged at composite sheet 120 becomes smooth, extension 21 expandings.Spreading roll mechanism 600 has the first spread rolls mechanism 610 and the second spread rolls mechanism 620.
One sidepiece 120E1 of the first spread rolls mechanism, 610 clamping composite sheet 120.The first spread rolls mechanism 610 have first upside by pressure roller 611 and first downside by pressure roller 612.
First upside is disposed at the one side side (upper face side) of composite sheet 120 by pressure roller 611.First upside by pressure roller 611 with state of contact above the composite sheet 120 under be that the center is along the transport direction rotation of sending composite sheet 120 with the axle center.
First downside clips composite sheet 120 by pressure roller 612 and is configured in the opposition side (following side) of first upside by pressure roller 611.Press pressure roller 612 and first upside is pressed clamping composite sheet 120 between the pressure roller 611 at first downside.First downside under state of contact below composite sheet 120 is that the center is along the transport direction rotation of sending composite sheet 120 with the axle center by pressure roller 612.
Press pressure roller 611 and first downside is pressed in the pressure roller 612 at first upside, the centre line C L side of composite sheet 120 is positioned at the forward position on the operating direction MD.That is to say, first upside by pressure roller 611 and first downside by pressure roller 612 in the overlooking of composite sheet 120, tilt with respect to crisscross CD.Thereby first upside can with composite sheet 120 expandings become flat condition with first downside by pressure roller 612 by pressure roller 611.
The other side 120E2 of the second spread rolls mechanism, 620 clamping composite sheet 120.The second spread rolls mechanism 620 have second upside by pressure roller 621 and second downside by pressure roller 622.The structure of the second spread rolls mechanism 620 is identical with the first spread rolls mechanism 610.Therefore, omission is to the explanation of the second spread rolls mechanism 620.
In such spreading roll mechanism 600, by suitably change first upside by pressure roller 611 and first downside by pressure roller 612 with respect to the inclination angle of crisscross CD, second upside by pressure roller 621 and second downside by the inclination angle of pressure roller 622 with respect to crisscross CD, can change the expanding degree of composite sheet 120.
(comparative evaluation)
Below, for further clear and definite effect of the present invention, the comparative evaluation that the extension apparatus that adopts following comparative example and embodiment is carried out describes.The present invention is not limited to these examples.
The data that the condition of each sheet that uses in the comparative evaluation, binding material, each extension apparatus is correlated with are shown in table 1～table 3.In addition, the binding material that uses in comparative evaluation is made by the following method.
At first, in being 140～160 containers of spending, interior temperature drops into the stabilizing agent of a part of plasticizer, bonding additives (for example viscosifier) etc.Then, in container, drop into the matrix polymer (thermal plastic high polymer) of SBSS (s-B-S) etc., stir by decompression and mix.
Then, in container, drop into the stabilizing agent of remaining plasticizer, bonding additives etc., stir by decompression and mix.Then, take out mixed binding material and packing.The composition of the binding material of Zhi Zaoing is as shown in table 1 like this.
Table 2
Sword compression distance 1.6mm
Table 3
Sword compression distance 1.8mm
Adopt the extension apparatus of comparative example 1～10 and embodiment 1～8 that composite sheet 120 is extended, the result is determined at the probability (percent opening) that produces perforate (hole) on the composite sheet 120 of utilizing each extension apparatus to extend respectively.
This result judges the extension apparatus of the extension apparatus of embodiment 1～8 than comparative example 1～10 shown in table 2 and table 3, percent opening is low.That is to say, the extension apparatus of embodiment 1～8 with composite sheet 120 be heated to above binding material softening point (about 82 ℃), be lower than the temperature of the softening temperature (about 120 ℃) of composite sheet 120.In addition, in the extension apparatus of embodiment 1～8, above-mentioned a plurality of protuberances are heated to above 40 degree and are lower than the temperature of the softening point (about 82 ℃) of binding material.Therefore, it is low to judge the percent opening of extension apparatus of embodiment 1～8.
In Shuo Ming the present embodiment, before pushing composite sheet 120, heat in the above.At this moment, composite sheet 120 is heated to above the softening point of binding material and is lower than the temperature of softening temperature (for example bottom thin film 20A) minimum in a plurality of softening temperature.In view of the above, can make the binding material between a plurality of become soft utilizing before mold pressing roll mechanism 520 pushes composite sheet 120.
With the temperature heating composite sheet 120 of the softening point that is lower than binding material the time, can't soften the binding material between a plurality of.In addition, when the temperature of minimum softening temperature (for example bottom thin film 20A) heats composite sheet 120 in the softening temperature that is higher than a plurality of (bottom thin film 20A and bottom non-woven fabrics 20B), bottom thin film 20A heat fusing and hardening, thereby cause texture to worsen, and a plurality of exist disruptive danger.
In addition, make it on width W, to extend by push the composite sheet 120 that has heated at thickness direction T.At this moment, protuberance 532 and protuberance 542 are heated to above 40 degree and are lower than the temperature of the softening point of binding material.In view of the above, pushing composite sheet 120 under the state that the binding material between a plurality of limbers up and under composite sheet 120 heated states.Therefore, the binding material between a plurality of is easy to adapt to protuberance 532 and protuberance 542.Therefore, conduct heat to composite sheet 120 fully, thereby can on composite sheet 120, not produce the inequality of weight per unit area, can suppress the generation of perforate (hole) effectively.
When being lower than the temperature heating protuberance of 40 degree, the binding material between the composite sheet 120 that limbers up oozes out the surface that is attached to protuberance between being easy to from a plurality of when by mold pressing roll mechanism 520.The binding material that is attached to the surface of this protuberance is attached to composite sheet 120, can take place to make bad because of binding material is attached to perforate that composite sheet 120 brings etc.
In addition, with the temperature heating protuberance of the softening point that is higher than binding material the time, only extend, thereby the damage that is applied to telescoping part increases with the chimeric part of protuberance 532 and protuberance 542, thereby on composite sheet 120, produce the inequality of weight per unit area, be easy to produce perforate (hole).
Like this, according to the manufacture method and the extension apparatus 500 of the absorbent commodity of present embodiment, do not give by the binding material a plurality of composite sheet that form 120 of fitting and bring damage just can make it evenly to extend at width W.
In the present embodiment, composite sheet 120 is heated to the temperature of low at least 20 degree of softening temperature minimum in a plurality of softening temperature.If to be higher than the temperature heating composite sheet 120 of low 20 degree of softening temperature minimum in a plurality of softening temperature, then there to be a part of heat fusing of composite sheet 120 and to become really up to the mark problem.
In the present embodiment, the binding material by the coating of spin coating pattern engages composite sheet 120.In view of the above, in the spin coating pattern, spray vaporific binding material, apply with fine rule and high density to composite sheet 120.Therefore, add man-hour in that composite sheet 120 is extended, be difficult in the extension of composite sheet 120, produce uneven, thereby more perforate (hole) is given birth in difficult labour.
(other embodiments)
As mentioned above, disclose content of the present invention, but should not be understood as and be used for limiting the present invention becoming the argumentation of a part of the disclosure and accompanying drawing by embodiments of the present invention.For a person skilled in the art, according to the disclosure, be easy to expect various displaced embodiments, embodiment and application technology.
For example, embodiments of the present invention can be carried out following change.Specifically, composite sheet 120 is used for back sheet 20 is illustrated, but be not limited thereto,, also can be used for the parts of various absorbent commodities such as disposable diaper, sanitary napkin so long as get final product by a plurality of parts that constitute (for example surface patch).
In addition, being that taper shape (general triangular) is illustrated in the section of axis direction to the shape of protuberance (protuberance 532 and protuberance 542), but being not limited thereto, also can be tetragon, trapezoidal, circular-arc etc.
In addition, in sheet bonding process S10, successive egative film 120A of applying bottom thin film 20A and the successive non-woven fabric plate 120B of bottom non-woven fabrics 20B are illustrated, but are not limited thereto, also bottom thin film 20A intermittently can be fitted on the non-woven fabric plate 120B.
In addition, the manufacture method of absorbent commodity is had sheet bonding process S10～product to be cut off operation S90 and is illustrated, but be not limited thereto,, can suitably set according to purpose certainly as long as have sheet heating process S20, sheet extension process S30 and absorber joint operation S50 at least.
Like this, the present invention comprises various embodiments that are not recorded in this etc. certainly.Therefore, from above-mentioned explanation, technical scope of the present invention is only limited by the technical scheme of claims.
Claims (5)
1. the manufacture method of an absorbent commodity, this absorbent commodity has composite sheet and absorber at least, and above-mentioned composite sheet is fitted a plurality of by binding material and is formed, and this absorber is attached on the above-mentioned composite sheet, and described manufacture method has following operation:
Operation A utilizes the warm-up mill that rotates along the throughput direction of above-mentioned composite sheet that the above-mentioned composite sheet of carrying along above-mentioned throughput direction is heated; And
Process B, utilize a pair of mold pressing roll mechanism with the above-mentioned composite sheet of the orthogonal crisscross extension of above-mentioned throughput direction, the raised part that this a pair of mold pressing roll mechanism forms a plurality of protuberances and clips above-mentioned composite sheet chimeric the opposing party between a side raised part in periphery;
In above-mentioned operation A, above-mentioned composite sheet is heated to above the softening point of above-mentioned binding material and is lower than the temperature of softening temperature minimum in the above-mentioned a plurality of softening temperature;
In above-mentioned process B, above-mentioned a plurality of protuberances are heated to above 40 degree and are lower than the temperature of the softening point of above-mentioned binding material.
2. the manufacture method of absorbent commodity as claimed in claim 1 is characterized in that, in above-mentioned operation A, above-mentioned composite sheet is heated to the temperature of low at least 20 degree of softening temperature minimum in the above-mentioned a plurality of softening temperature.
3. the manufacture method of absorbent commodity as claimed in claim 1 is characterized in that, above-mentioned composite sheet engages by the above-mentioned binding material with the coating of spin coating pattern.
4. as the manufacture method of each described absorbent commodity in the claim 1 to 3, it is characterized in that, has the operation of after above-mentioned process B, carrying out, wherein, utilization is arranged at least one side's the spreading roll mechanism of sidepiece of the width of above-mentioned composite sheet, and above-mentioned composite sheet is become flat condition towards the width outside of above-mentioned composite sheet expanding.
5. extension apparatus, along the throughput direction of composite sheet carry composite sheet on one side with above-mentioned throughput direction orthogonal crisscross on extending above-mentioned composite sheet on one side, above-mentioned composite sheet is fitted a plurality of by binding material and is formed,
This extension apparatus has along the above-mentioned throughput direction rotation of above-mentioned composite sheet and the warm-up mill and a pair of mold pressing roll mechanism of heating above-mentioned composite sheet, the raised part that this a pair of mold pressing roll mechanism forms a plurality of protuberances and clips above-mentioned composite sheet chimeric the opposing party between a side raised part in periphery;
Above-mentioned warm-up mill has first heating part, and this first heating part is heated to above the softening point of above-mentioned binding material with above-mentioned composite sheet and is lower than the temperature of softening temperature minimum in the above-mentioned a plurality of softening temperature;
Above-mentioned mold pressing roll mechanism has second heating part, and this second heating part is heated to above 40 degree with above-mentioned a plurality of protuberances and is lower than the temperature of the softening point of above-mentioned binding material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009200709A JP5623042B2 (en) | 2009-08-31 | 2009-08-31 | Absorbent article manufacturing method and stretching apparatus |
| JP2009-200709 | 2009-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101803974A true CN101803974A (en) | 2010-08-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010126108A Pending CN101803974A (en) | 2009-08-31 | 2010-02-26 | The manufacture method of absorbent commodity and extension apparatus |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5623042B2 (en) |
| CN (1) | CN101803974A (en) |
| AR (1) | AR078006A1 (en) |
| TW (1) | TWI499406B (en) |
| WO (1) | WO2011025032A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107106364A (en) * | 2014-12-19 | 2017-08-29 | 花王株式会社 | Absorbent commodity |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8585849B2 (en) | 2012-02-06 | 2013-11-19 | The Procter & Gamble Company | Apparatuses and methods for fabricating elastomeric laminates |
| CN105087348A (en) * | 2015-09-28 | 2015-11-25 | 淄博大创自动化科技有限公司 | Production and collection system for highly pure bamboo vinegar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001509420A (en) * | 1997-07-08 | 2001-07-24 | ザ、プロクター、エンド、ギャンブル、カンパニー | Disposable absorbent article having a zoned breathable fabric-like feel backsheet and a method of making such a backsheet |
| JP2003073967A (en) * | 2001-08-31 | 2003-03-12 | Mitsui Chemicals Inc | Soft nonwoven fabric and method for producing the same |
| JP2008012005A (en) * | 2006-07-05 | 2008-01-24 | Kao Corp | Conveyance method of elastic sheet |
| JP2008106377A (en) * | 2006-10-23 | 2008-05-08 | Kao Corp | Stretchable nonwoven fabric |
| WO2008123169A1 (en) * | 2007-03-30 | 2008-10-16 | Uni-Charm Corporation | Nonwoven stretch fabric |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3408566B2 (en) * | 1992-12-25 | 2003-05-19 | 積水化成品工業株式会社 | Water absorbing sheet and method for producing the same |
| JP4277442B2 (en) * | 2000-11-16 | 2009-06-10 | 三菱電機株式会社 | Evaluation method of gas discharge display device |
| JP2002316359A (en) * | 2001-04-23 | 2002-10-29 | Mitsui Chemicals Inc | Porous film/nonwoven fabric composite sheet and manufacturing method therefor |
-
2009
- 2009-08-31 JP JP2009200709A patent/JP5623042B2/en not_active Expired - Fee Related
-
2010
- 2010-02-26 CN CN201010126108A patent/CN101803974A/en active Pending
- 2010-08-30 TW TW099129097A patent/TWI499406B/en not_active IP Right Cessation
- 2010-08-31 AR ARP100103184 patent/AR078006A1/en unknown
- 2010-08-31 WO PCT/JP2010/064812 patent/WO2011025032A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001509420A (en) * | 1997-07-08 | 2001-07-24 | ザ、プロクター、エンド、ギャンブル、カンパニー | Disposable absorbent article having a zoned breathable fabric-like feel backsheet and a method of making such a backsheet |
| JP2003073967A (en) * | 2001-08-31 | 2003-03-12 | Mitsui Chemicals Inc | Soft nonwoven fabric and method for producing the same |
| JP2008012005A (en) * | 2006-07-05 | 2008-01-24 | Kao Corp | Conveyance method of elastic sheet |
| JP2008106377A (en) * | 2006-10-23 | 2008-05-08 | Kao Corp | Stretchable nonwoven fabric |
| WO2008123169A1 (en) * | 2007-03-30 | 2008-10-16 | Uni-Charm Corporation | Nonwoven stretch fabric |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107106364A (en) * | 2014-12-19 | 2017-08-29 | 花王株式会社 | Absorbent commodity |
| CN107106364B (en) * | 2014-12-19 | 2020-07-03 | 花王株式会社 | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011050493A (en) | 2011-03-17 |
| TW201124118A (en) | 2011-07-16 |
| WO2011025032A1 (en) | 2011-03-03 |
| AR078006A1 (en) | 2011-10-05 |
| JP5623042B2 (en) | 2014-11-12 |
| TWI499406B (en) | 2015-09-11 |
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