JP2003033966A - Method for producing rugged surface sheet - Google Patents
Method for producing rugged surface sheetInfo
- Publication number
- JP2003033966A JP2003033966A JP2001225427A JP2001225427A JP2003033966A JP 2003033966 A JP2003033966 A JP 2003033966A JP 2001225427 A JP2001225427 A JP 2001225427A JP 2001225427 A JP2001225427 A JP 2001225427A JP 2003033966 A JP2003033966 A JP 2003033966A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- vacuum roll
- surface sheet
- roll
- producing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、凹凸表面シートの
製造方法に関し、詳しくは、生理用ナプキン、失禁パッ
ド、使い捨ておむつ等の吸収性物品の表面シートとして
好適に用いられる凹凸表面シートを製造する方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an uneven surface sheet, and more specifically, it produces an uneven surface sheet suitable for use as a surface sheet of absorbent articles such as sanitary napkins, incontinence pads, disposable diapers and the like. Regarding the method.
【０００２】[0002]
【従来の技術及び発明が解決しようとする課題】従来、
生理用ナプキンや使い捨ておむつ等の吸収性物品の表面
シートとして、中空の凸条部が多数並列に形成された凹
凸表面シートが知られている。斯かる凹凸シートの製造
方法として、特開平６−２５５００６号公報には、伸長
率を異ならせた２枚のシート材を、一対の接合ロール間
に挿通して両者を間欠的に接合した後、両シートの伸張
状態を開放して、嵩高な凹凸シートを製造する方法が記
載されている。この方法は、２枚のシートの収縮力の差
を利用したものであるが、２枚のシート材、特に大きく
収縮させる方のシート材の形成材料や伸縮応力等の物性
が大きく制限されるという欠点がある。例えば、特定の
物性（厚み方向の圧縮特性等）を有する凹凸シートを製
造する場合、その製造に使用するシート材は、前記物性
に応じた、限られた範囲内のものから選択しなければな
らない。また、特に高速にて連続生産中に、シート材
に、シート材の継ぎ合わせ等によりテンションの変動が
生じると、得られる凹凸シートに物性のムラが生じると
いう問題がある。更に、凹凸シートの仕様を変更しよう
とする場合には、シートの加工条件の選定等に時間が掛
かる可能性もある。2. Description of the Related Art Conventionally, the problems to be solved by the invention
BACKGROUND ART As a topsheet for absorbent articles such as sanitary napkins and disposable diapers, there is known an irregular topsheet in which a large number of hollow ridges are formed in parallel. As a method for producing such a concavo-convex sheet, Japanese Unexamined Patent Publication No. 6-255006 discloses that two sheet materials having different elongation rates are inserted between a pair of joining rolls and intermittently joined together, A method for producing a bulky uneven sheet by releasing the stretched state of both sheets is described. This method utilizes the difference in shrinkage force between two sheets, but the material for forming the two sheets, particularly the sheet material that shrinks significantly, and the physical properties such as stretching stress are greatly limited. There are drawbacks. For example, when manufacturing an uneven sheet having specific physical properties (compression characteristics in the thickness direction, etc.), the sheet material used for the production must be selected from those within a limited range depending on the physical properties. . Further, during continuous production at a high speed, if the tension of the sheet material changes due to the joining of the sheet materials or the like, there is a problem in that the resulting uneven sheet has uneven physical properties. Furthermore, when the specifications of the uneven sheet are to be changed, it may take time to select the sheet processing conditions.
【０００３】本発明の目的は、凹凸表面シートの製造
に、多様なシート材を用いることのできる、凹凸表面シ
ートの製造方法を提供することにある。本発明の他の目
的は、一定品質の凹凸表面シートを安定に連続生産する
ことのできる、凹凸表面シートの製造方法を提供するこ
とにある。本発明の更に他の目的は、凹凸シートの仕様
変更に伴って必要とされる時間や手間を削減することの
できる、凹凸表面シートの製造方法を提供することにあ
る。An object of the present invention is to provide a method for manufacturing a textured surface sheet, which can use various sheet materials for the manufacture of the textured surface sheet. Another object of the present invention is to provide a method for producing an uneven surface sheet, which enables stable continuous production of an uneven surface sheet of constant quality. Still another object of the present invention is to provide a method for producing a concavo-convex surface sheet, which can reduce the time and labor required for changing the specifications of the concavo-convex sheet.
【０００４】[0004]
【課題を解決するための手段】本発明は、周面に長溝が
多数並列に形成され、該長溝内に吸引孔を有するバキュ
ームロールの該周面に、第１シートを連続的に供給し、
該第１シートを、該周面上において凹凸形状に変形さ
せ、その変形状態を維持させたまま第２シートに接合し
て、凹凸を有する凹凸表面シートを得る、凹凸表面シー
トの製造方法を提供することにより、上記の目的を達成
したものである。According to the present invention, a first sheet is continuously supplied to the peripheral surface of a vacuum roll having a plurality of long grooves arranged in parallel on the peripheral surface and having suction holes in the long grooves,
Provided is a method for producing an uneven surface sheet, which comprises deforming the first sheet into an uneven shape on the peripheral surface, and joining the second sheet while maintaining the deformed state to obtain an uneven surface sheet having unevenness. By doing so, the above object is achieved.
【０００５】[0005]
【発明の実施の形態】以下、本発明をその好ましい一実
施形態に基づいて説明する。図１は、本実施形態の凹凸
表面シートの製造方法の実施に好ましく用いられる装置
の主要部を示す概略模式図である。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on a preferred embodiment thereof. FIG. 1 is a schematic diagram showing a main part of an apparatus preferably used for carrying out the method for producing a textured surface sheet of the present embodiment.
【０００６】図１に示す装置は、周面に長溝４１が多数
並列に形成されたバキュームロール４と、バキュームロ
ール４に対向配置された加圧ロール５と、凹凸表面シー
トの形成材料としての帯状の第１シート１を、その原反
ロール１１から連続的に繰り出して搬送し、バキューム
ロール４の周面に連続的に供給する第１シート供給機構
と、凹凸表面シートの他の形成材料としての帯状の第２
シート２を、その原反ロール２１から連続的に繰り出し
て搬送し、バキュームロール４と加圧ロール５との間に
連続的に供給する第２シート供給機構と、第１シート１
との合流部Ｇに供給される前の第２シート２に対して接
着剤６１を塗布する接着剤塗布装置６と、第１及び第２
シートが接合されて得られる凹凸表面シート３を、所定
箇所まで搬送してロール状に巻き取る巻き取り機構とを
有している。The apparatus shown in FIG. 1 has a vacuum roll 4 in which a plurality of long grooves 41 are formed in parallel on the circumferential surface, a pressure roll 5 arranged to face the vacuum roll 4, and a strip-shaped material as a material for forming an uneven surface sheet. No. 1 sheet feeding mechanism that continuously feeds the first sheet 1 from the original roll 11 and conveys it to the peripheral surface of the vacuum roll 4 and another material for forming the uneven surface sheet. Second strip
The second sheet feeding mechanism that continuously feeds the sheet 2 from the original roll 21 and conveys the sheet 2 between the vacuum roll 4 and the pressure roll 5, and the first sheet 1.
And an adhesive applying device 6 for applying an adhesive 61 to the second sheet 2 before being supplied to the merging portion G with the first and second
The concavo-convex surface sheet 3 obtained by joining the sheets is transported to a predetermined location and wound into a roll.
【０００７】本実施形態で用いるバキュームロール４の
各長溝４１は、図２に示すように、バキュームロール４
の軸長方向に沿って形成されている。より具体的には、
バキュームロール４の軸長方向と平行に且つそれぞれ直
線状に形成されている。また、各長溝４１の底部には、
複数の吸引孔４２が所定間隔で形成されている。バキュ
ームロール４は、図１に示すように、内部に負圧部４３
を有しており、吸引孔４２が該負圧部４３上を通過して
いる間、該吸引孔４２によりロール４の内外が連通され
て、該バキュームロール４の周面上に供給された第１シ
ート１が該吸引孔４２により吸引されるようになされて
いる。尚、負圧部４３には、公知の減圧手段（図示せ
ず）が接続されており、内部を所望の圧力に減圧可能に
なされている。長溝４１は、溝ピッチ〔図３参照〕Ｐが
１〜２０ｍｍであることが好ましく、深さＤが１〜２０
ｍｍであることが好ましい。尚、溝ピッチは、ロール４
の周面における、第１シート１に当接する領域の最外部
分Ｓが通る円Ｃ上において、隣接する長溝の対応箇所間
の距離を測定する。Each long groove 41 of the vacuum roll 4 used in the present embodiment is, as shown in FIG.
Is formed along the axial direction. More specifically,
The vacuum roll 4 is formed in a straight line in parallel with the axial direction of the roll. In addition, at the bottom of each long groove 41,
A plurality of suction holes 42 are formed at predetermined intervals. As shown in FIG. 1, the vacuum roll 4 has a negative pressure portion 43 inside.
While the suction hole 42 is passing over the negative pressure portion 43, the suction hole 42 communicates the inside and outside of the roll 4 and is supplied to the peripheral surface of the vacuum roll 4. One sheet 1 is sucked by the suction hole 42. A known pressure reducing means (not shown) is connected to the negative pressure portion 43 so that the inside pressure can be reduced to a desired pressure. The long groove 41 preferably has a groove pitch [see FIG. 3] P of 1 to 20 mm and a depth D of 1 to 20.
It is preferably mm. The groove pitch is roll 4
On the circle C passing through the outermost portion S of the region abutting on the first sheet 1 on the peripheral surface of, the distance between the corresponding portions of the adjacent long grooves is measured.
【０００８】次に、上述した装置を用いた本実施形態の
凹凸表面シートの製造方法について説明する。本実施形
態においては、バキュームロール４を、所定の周速度Ｖ
１で一方向に回転させ、その周面上に、原反ロール１１
から繰り出した第１シート１を、該バキュームロール４
の周速度Ｖ１よりも高い速度Ｖ２で供給する。尚、バキ
ュームロール４の周速度Ｖ１は、バキュームロール４の
第１シート１に当接する領域の最外部分Ｓ上の点が、上
記円Ｃ上を移動する速度を意味する。Next, a method for manufacturing the uneven surface sheet of this embodiment using the above-mentioned apparatus will be described. In this embodiment, the vacuum roll 4 is moved to a predetermined peripheral speed V.
1 to rotate in one direction, and the original roll 11
The first sheet 1 fed out from the vacuum roll 4
Is supplied at a speed V2 higher than the peripheral speed V1. The peripheral speed V1 of the vacuum roll 4 means the speed at which the point on the outermost part S of the region of the vacuum roll 4 that contacts the first sheet 1 moves on the circle C.
【０００９】そして、バキュームロール４の周面上に供
給した第１シート１を、図１に示すように、長溝４１内
に設けた吸引孔４２から吸引して、バキュームロール４
の周面形状に沿う凹凸形状に変形させる。第１シート１
の凹凸形状は、ロール４の周面形状とほぼ同形状であ
る。前記周速度Ｖ１＜前記速度Ｖ２とすることにより、
第１シート１を、バキュームロール４の周面上において
ロール形状に即して伸長させなくとも凹凸形状に変形さ
せることができる。尚、速度Ｖ２と周速度Ｖ１との速度
差は、バキュームロール４の周面形状に応じて適宜に決
定できるが、例えば速度Ｖ２と周速度Ｖ１との比（Ｖ2
／Ｖ1 ）＝（バキュームロール４の表面に沿って計測し
た該ロールの周面長さ）／（該バキュームロールの最外
部分Ｓ上の点が通る前記円Ｃの周の長さ）であることが
好ましい。Then, as shown in FIG. 1, the first sheet 1 supplied on the peripheral surface of the vacuum roll 4 is sucked from the suction holes 42 provided in the long groove 41, and the vacuum roll 4 is sucked.
It is deformed into a concavo-convex shape along the peripheral surface shape. 1st sheet 1
The concavo-convex shape is substantially the same as the peripheral surface shape of the roll 4. By setting the peripheral speed V1 <the speed V2,
The first sheet 1 can be deformed into a concavo-convex shape on the circumferential surface of the vacuum roll 4 without being stretched according to the roll shape. The speed difference between the speed V2 and the peripheral speed V1 can be appropriately determined according to the peripheral surface shape of the vacuum roll 4, but for example, the ratio (V 2 of the speed V2 and the peripheral speed V1).
/ V 1 ) = (circumferential length of the roll measured along the surface of the vacuum roll 4) / (circumferential length of the circle C through which a point on the outermost portion S of the vacuum roll passes) It is preferable.
【００１０】そして、凹凸形状に変形させた第１シート
１を、吸引孔４２からの吸引を継続して、その変形状態
を維持したまま第２シート２との合流部Ｇまで搬送す
る。第２シート２は、バキュームロール４の周速度Ｖ１
と同じ速度Ｖ３で、合流部Ｇに供給し、第２シート２
を、その速度のまま第１シート１と接合する。本実施形
態においては、第１シート１と第２シート２との接合
を、バキュームロール４の長溝４１，４１同士間の周面
４４と加圧ロール５の周面との間で、両シートを加圧し
て行う。第１シート１と第２シート２との接合は、バキ
ュームロール４及び／又は加圧ロール５を加熱し両者に
加圧処理及び加熱処理を施して接合させても良いが、本
実施形態においては、図１に示すように、第２シート２
にホットメルト型の接着剤６１を塗布し、該接着剤を介
して両シートを加圧処理により接合させている。Then, the first sheet 1 deformed into an uneven shape is continuously sucked from the suction holes 42, and is conveyed to the confluence portion G with the second sheet 2 while maintaining the deformed state. The second sheet 2 has a peripheral speed V1 of the vacuum roll 4.
The second sheet 2 is supplied to the merging portion G at the same speed V3 as
Is bonded to the first sheet 1 at that speed. In the present embodiment, the first sheet 1 and the second sheet 2 are joined to each other between the circumferential surface 44 between the long grooves 41, 41 of the vacuum roll 4 and the circumferential surface of the pressure roll 5 by joining the two sheets. Perform by applying pressure. The first sheet 1 and the second sheet 2 may be joined by heating the vacuum roll 4 and / or the pressure roll 5 and subjecting both to pressure treatment and heat treatment, but in the present embodiment. , The second sheet 2 as shown in FIG.
A hot-melt type adhesive 61 is applied to and both sheets are joined by pressure treatment via the adhesive.
【００１１】この接合により、第１及び第２シート１，
２は、バキュームロール４の長溝同士間の周面４４と加
圧ロール５の周面との間で加圧された部位において互い
に接合され、これにより、図４に示す凹凸表面シート３
が得られる。By this joining, the first and second sheets 1,
2 are bonded to each other at a portion where pressure is applied between the circumferential surface 44 between the long grooves of the vacuum roll 4 and the circumferential surface of the pressure roll 5, whereby the uneven surface sheet 3 shown in FIG.
Is obtained.
【００１２】図４に示す凹凸表面シート３は、第１シー
ト１と第２シート２とが長手方向に所定間隔で間欠的に
接合されたものであり、第１シート１における前記各長
溝４１内に吸引された部分が、第２シート２から離間す
ることにより、凹凸表面シートの片面に、内部中空の凸
条部３１，３１が多数並列に形成されている。この凹凸
表面シート３は、斯かる構成を有するため、生理用ナプ
キン、失禁パット、使い捨ておむつ等の吸収性物品の表
面シートとして用いた場合には、着用者の肌に対する感
触が柔らかく、ムレを生じにくく、液の移動、特に凸条
部に交差する方向への移動を阻止できる等の効果が得ら
れる。The concavo-convex surface sheet 3 shown in FIG. 4 is obtained by intermittently joining the first sheet 1 and the second sheet 2 at a predetermined interval in the longitudinal direction, and in each of the long grooves 41 in the first sheet 1. The portion sucked in is separated from the second sheet 2, so that a large number of internally hollow convex portions 31, 31 are formed in parallel on one surface of the concave-convex surface sheet. Since this uneven surface sheet 3 has such a structure, when it is used as a surface sheet for absorbent articles such as sanitary napkins, incontinence pads, and disposable diapers, the wearer's skin feels soft and causes stuffiness. It is difficult to obtain such an effect that the movement of the liquid, especially the movement in the direction intersecting the ridge can be prevented.
【００１３】図５に示す生理用ナプキン７は、凹凸表面
シート３を表面シートとして用いた吸収性物品の一例で
ある。生理用ナプキン７は、凹凸表面シート３、液不透
過性の防漏シート７１、及びこれら両シート間に介在さ
れた液保持性の吸収体７２とからなり、凹凸表面シート
３及び防漏シート７１は、吸収体７２の周縁から延出す
る部分において互いに公知の接合手段により接合され、
両シート３，７１間に吸収体７２が挟持固定されてい
る。この凹凸表面シート３の構成材料として用いた第１
及び第２シートは、何れも通気性且つ液透過性であり、
凹凸表面シート３も通気性且つ液透過性である。本生理
用ナプキン７における多数の凸条部３１，３１・・は、
それぞれ、ナプキン７の幅方向両側に位置する両端部が
封止されており、各凸条部３１，３１内に吸収された経
血等が、ナプキンの幅方向両側から漏れ出すことが防止
される。The sanitary napkin 7 shown in FIG. 5 is an example of an absorbent article using the uneven surface sheet 3 as a surface sheet. The sanitary napkin 7 includes an uneven surface sheet 3, a liquid-impermeable leak-proof sheet 71, and a liquid-retaining absorber 72 interposed between these sheets. The uneven surface sheet 3 and the leak-proof sheet 71. Are joined to each other at a portion extending from the peripheral edge of the absorber 72 by known joining means,
An absorber 72 is sandwiched and fixed between both sheets 3, 71. First used as a constituent material of the uneven surface sheet 3
And the second sheet are both breathable and liquid permeable,
The uneven surface sheet 3 is also breathable and liquid permeable. The numerous ridges 31, 31, ... in the sanitary napkin 7 are
Both ends of the napkin 7 located on both sides in the width direction are sealed, and menstrual blood or the like absorbed in the ridges 31, 31 is prevented from leaking from both sides in the width direction of the napkin. .
【００１４】本実施形態の凹凸表面シートの製造方法に
よれば、凹凸表面シートの製造に用いるシート材、即ち
第１シート及び／又は第２シートとして、多様なシート
材を用いることができる。例えば、第１シートと第２シ
ートの組み合わせは、実質的に弾性伸縮性を有するシー
トと実質的に弾性伸縮性を有しないシートとの組み合わ
せ、実質的に弾性伸縮性を有するシート同士の組み合わ
せ、実質的に弾性収縮性を有しないシート同士の組み合
わせ等とすることができる。第１及び第２シートとして
は、それぞれ、生理用ナプキン等の吸収性物品の表面シ
ートの形成材料として、通常用いられる各種の材料を特
に制限なく用いることができる。例えば、各種製法によ
る不織布、合成樹脂製の有孔フィルム、織り布等を用い
ることができる。尚、第１及び第２シートは、その形成
材料が同一でも異なっていても良い。According to the method of manufacturing the uneven surface sheet of this embodiment, various sheet materials can be used as the sheet material used for manufacturing the uneven surface sheet, that is, the first sheet and / or the second sheet. For example, the combination of the first sheet and the second sheet is a combination of a sheet having substantially elastic stretchability and a sheet having substantially no elastic stretchability, a combination of sheets having substantially elastic stretchability, A combination of sheets having substantially no elastic shrinkage can be used. As the first and second sheets, various materials that are ordinarily used as a material for forming a surface sheet of an absorbent article such as a sanitary napkin can be used without particular limitation. For example, a non-woven fabric manufactured by various manufacturing methods, a synthetic resin perforated film, a woven fabric, or the like can be used. The materials for forming the first and second sheets may be the same or different.
【００１５】第１シートと第２シートとの好ましい組み
合わせの例としては、第１シート及び第２シートが、そ
れぞれ、スパンボンド、メルトブロー、エアースルー
等、各種公知の製法からなる不織布である組み合わせ、
第１シートがスパンボンド、メルトブロー、エアースル
ー等、各種公知の製法からなる不織布であり、第２シー
トがウレタン、糸ゴム等、弾性伸縮性を有する材である
組み合わせ等を挙げることができる。As an example of a preferable combination of the first sheet and the second sheet, a combination in which the first sheet and the second sheet are nonwoven fabrics made by various known manufacturing methods such as spunbond, melt blow, air through, etc.,
Examples include a combination in which the first sheet is a nonwoven fabric made by various known manufacturing methods such as spunbonding, meltblowing, and air-through, and the second sheet is a material having elastic elasticity such as urethane and rubber thread.
【００１６】また、本実施形態の凹凸表面シートの製造
方法によれば、一定品質の凹凸表面シートを安定に連続
生産することができる。即ち、高速にて連続生産中に、
シート材の継ぎ合わせを行った場合であっても、バキュ
ームロールにより凹凸を形成し、他のシートと接合さ
せ、凹凸表面シート製造するため、得られる凹凸表面シ
ートに物性（厚み方向の圧縮特性等）のムラが生じにく
い。Further, according to the method of manufacturing the uneven surface sheet of the present embodiment, it is possible to stably continuously produce the uneven surface sheet of a constant quality. That is, during continuous production at high speed,
Even when the sheet materials are spliced together, unevenness is formed by a vacuum roll, and the uneven surface sheet is manufactured by joining with other sheets to manufacture the uneven surface sheet. Is less likely to occur.
【００１７】更に、本実施形態の凹凸表面シートの製造
方法によれば、凹凸表面シートの仕様変更に伴って必要
とされる時間や手間を削減することができる。例えば、
バキュームロールの周面の凹凸形状を変更する等によ
り、仕様の異なる凹凸表面シートを製造することができ
る。Further, according to the method for manufacturing the uneven surface sheet of the present embodiment, it is possible to reduce the time and labor required for changing the specifications of the uneven surface sheet. For example,
By changing the uneven shape of the peripheral surface of the vacuum roll, it is possible to manufacture uneven surface sheets having different specifications.
【００１８】本発明の凹凸表面シートの製造方法は、上
述の実施形態に制限されるものではなく、種々変形可能
である。例えば、凹凸表面シートは、生理用ナプキンの
表面シートの他、失禁パッド、使い捨ておむつ、パンテ
ィライナー等の他の吸収性物品の表面シートであっても
良い。The method for producing the uneven surface sheet of the present invention is not limited to the above-mentioned embodiment, but can be variously modified. For example, the uneven topsheet may be a topsheet of a sanitary napkin or a topsheet of another absorbent article such as an incontinence pad, a disposable diaper, or a panty liner.
【００１９】また、バキュームロールの軸長方向に沿っ
て形成された多数の長溝は、バキュームロールの周面を
平面状に展開した状態を想定した場合に、バキュームロ
ールの軸長方向に対応する幅方向と平行に延びるもの
（上記実施形態のもの）の他、該幅方向に対して所定の
角度（例えば０゜以上４５゜以下の角度等）を有するも
のであっても良く、更に、長溝の形状は、直線状のもの
の他、円弧状、連続波形形状、ジグザグ形状等としても
良い。更に、バキュームロールの長溝は、該ロールの周
方向に沿って形成されたもの、例えば該ロールの周方向
と平行に直面視直線状に形成されたものであっても良
い。Further, the plurality of long grooves formed along the axial length direction of the vacuum roll have a width corresponding to the axial length direction of the vacuum roll when the circumferential surface of the vacuum roll is assumed to be flatly developed. In addition to the one extending in parallel with the direction (of the above-mentioned embodiment), it may have a predetermined angle (for example, an angle of 0 ° or more and 45 ° or less) with respect to the width direction. The shape may be a linear shape, an arc shape, a continuous wave shape, a zigzag shape, or the like. Further, the long groove of the vacuum roll may be formed along the circumferential direction of the roll, for example, formed in a straight line in a face view parallel to the circumferential direction of the roll.
【００２０】[0020]
【発明の効果】本発明によれば、凹凸表面シートの製造
工程において、シート材を伸長するなどしなくても良
く、多様なシート材を用いて凹凸表面シートを製造する
ことのできる、凹凸表面シートの製造方法を提供するこ
とができる。本発明によれば、一定品質の凹凸表面シー
トを安定に連続生産することのできる、凹凸表面シート
の製造方法を提供することができる。本発明によれば、
凹凸表面シートの仕様変更に伴って必要とされる時間や
手間を削減することのできる、凹凸表面シートの製造方
法を提供することができる。EFFECTS OF THE INVENTION According to the present invention, in the manufacturing process of the uneven surface sheet, it is not necessary to elongate the sheet material, and the uneven surface sheet can be manufactured using various sheet materials. A sheet manufacturing method can be provided. ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of an uneven surface sheet which can carry out stable continuous production of the uneven surface sheet of fixed quality can be provided. According to the invention,
It is possible to provide a method for manufacturing an uneven surface sheet that can reduce the time and labor required for changing the specifications of the uneven surface sheet.
【図１】図１は、本発明の凹凸表面シートの製造方法の
実施に好ましく用いられる、凹凸表面シートの製造装置
の主要部を示す概略模式図である。FIG. 1 is a schematic diagram showing a main part of an apparatus for producing an uneven surface sheet, which is preferably used for carrying out the method for producing an uneven surface sheet of the present invention.
【図２】図２は、図１に示す装置におけるバキュームロ
ールを示す斜視図である。FIG. 2 is a perspective view showing a vacuum roll in the apparatus shown in FIG.
【図３】図３は、バキュームロールの周面形状を示す模
式断面図である。FIG. 3 is a schematic cross-sectional view showing a peripheral surface shape of a vacuum roll.
【図４】図４は、本発明で製造する凹凸表面シートの例
を示す斜視図である。FIG. 4 is a perspective view showing an example of an uneven surface sheet produced by the present invention.
【図５】図５は、本発明で製造する凹凸表面シートを用
いた吸収性物品の例を示す図で、図５（ａ）は斜視図、
図５（ｂ）は図５（ａ）のＸ−Ｘ線断面図である。FIG. 5 is a diagram showing an example of an absorbent article using an uneven surface sheet produced by the present invention, FIG. 5 (a) is a perspective view,
FIG. 5B is a sectional view taken along line XX of FIG.
【図６】図６は、バキュームロールに設けた長溝の他の
例を示す模式断面図（図３相当図）である。FIG. 6 is a schematic cross-sectional view (equivalent to FIG. 3) showing another example of the long groove provided in the vacuum roll.
１ 第１シート ２ 第２シート ３ 凹凸表面シート ４ バキュームロール ５ 加圧ロール 1st sheet 2 second sheet 3 Uneven surface sheet 4 vacuum roll 5 pressure roll
Claims (4)
溝内に吸引孔を有するバキュームロールの該周面に、第
１シートを連続的に供給し、該第１シートを、該周面上
において凹凸形状に変形させ、その変形状態を維持させ
たまま第２シートに接合して、凹凸を有する凹凸表面シ
ートを得る、凹凸表面シートの製造方法。1. A first sheet is continuously supplied to the peripheral surface of a vacuum roll having a large number of long grooves arranged in parallel on the peripheral surface and having suction holes in the long grooves, and the first sheet is supplied to the peripheral surface. A method for producing a concavo-convex surface sheet, which comprises deforming the surface to have a concavo-convex shape, and bonding the second sheet while maintaining the deformed state to obtain a concavo-convex surface sheet having irregularities.
長方向に沿って形成されており、前記第１シートを、該
バキュームロールの周速度よりも高い速度で該バキュー
ムロールに供給する、請求項１記載の凹凸表面シートの
製造方法。2. The long groove is formed along the axial length direction of the vacuum roll, and the first sheet is supplied to the vacuum roll at a speed higher than the peripheral speed of the vacuum roll. 1. The method for producing an uneven surface sheet according to 1.
あり、深さが１〜２０ｍｍである、請求項２記載の凹凸
表面シートの製造方法。3. The method for producing a concavo-convex surface sheet according to claim 2, wherein the long grooves have a groove pitch of 1 to 20 mm and a depth of 1 to 20 mm.
記バキュームロールの前記長溝同士間の周面と他のロー
ルの周面との間で両シートを加圧して行う、請求項１〜
３の何れか記載の凹凸表面シートの製造方法。4. The joining of the first sheet and the second sheet is performed by pressing both sheets between the circumferential surface between the long grooves of the vacuum roll and the circumferential surface of another roll. ~
4. The method for producing an uneven surface sheet according to any one of 3 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001225427A JP3859468B2 (en) | 2001-07-26 | 2001-07-26 | Manufacturing method of uneven surface sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001225427A JP3859468B2 (en) | 2001-07-26 | 2001-07-26 | Manufacturing method of uneven surface sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003033966A true JP2003033966A (en) | 2003-02-04 |
| JP3859468B2 JP3859468B2 (en) | 2006-12-20 |
Family
ID=19058420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001225427A Expired - Fee Related JP3859468B2 (en) | 2001-07-26 | 2001-07-26 | Manufacturing method of uneven surface sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3859468B2 (en) |
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