JPS60125647A - Adhering method of elastic material - Google Patents
Adhering method of elastic materialInfo
- Publication number
- JPS60125647A JPS60125647A JP58223860A JP22386083A JPS60125647A JP S60125647 A JPS60125647 A JP S60125647A JP 58223860 A JP58223860 A JP 58223860A JP 22386083 A JP22386083 A JP 22386083A JP S60125647 A JPS60125647 A JP S60125647A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- adhesive
- elastic material
- sheet
- hot melt
- 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.)
- Pending
Links
Classifications
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は可撓性シートに伸縮性部材を連続的に接着する
方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for continuously bonding a stretchable member to a flexible sheet.
伸縮性部材を可撓性シートに取りつける方法はいくつか
知られている。例えば、特公昭５２−８８６７０号公報
に開示されている方法のように、つかいすておむつを製
造する際にあらかじめ伸縮性部材を伸長させた後、接着
剤を間欠的に塗布してポリエチレンシートに接着させて
いる。つかいすておむつ製造装置は、今日、毎分３００
枚以上の割合でおむつが製造されるようになっている。Several methods are known for attaching stretchable members to flexible sheets. For example, as in the method disclosed in Japanese Patent Publication No. 52-88670, when manufacturing disposable diapers, an elastic member is first stretched, and then an adhesive is applied intermittently to form a polyethylene sheet. It is glued. Today, the used disposable diaper manufacturing equipment produces 300 per minute.
Diapers are being manufactured at a rate of more than 100 diapers.
例えぼっかいすておむつ１枚の長さが５９ｃｍとすると
製造装置内のスピードは毎分１５０ｍになる。従って伸
長状態における伸縮性部材のスピードも毎分１５０ｍで
あり、この時に接着剤を間欠的に塗布しなければならな
い。For example, if the length of one disposable diaper is 59 cm, the speed inside the manufacturing equipment will be 150 m/min. Therefore, the speed of the elastic member in the stretched state is also 150 m/min, and the adhesive must be applied intermittently at this time.
接着剤としてはホットメルトを用いるのが最も効率的で
且つ実施可能な方法であり、塗布にはツートン社のホッ
トメルトガン又はそれに類似した装置が用いられる。ホ
ットメルトは約１，０００〜５．０ＯＯｃｐｓという比
較的粘着性の高い状態でガンより間欠的に吐出される。The most efficient and practicable method is to use hot melt as the adhesive, and the application is performed using a Two-Tone hot melt gun or similar equipment. The hot melt is intermittently discharged from the gun in a relatively sticky state of about 1,000 to 5.0 OO cps.
このときホットメルトガンから吐出されたホットメルト
を停止させる際に粘度が高いために糸引き現象がおき所
定の長さ以上に塗布されてしまう。この傾向は製造装置
がより速くなるにつれ大きな問題となる。At this time, when the hot melt discharged from the hot melt gun is stopped, stringiness occurs due to the high viscosity and the hot melt is coated over a predetermined length. This trend becomes a greater problem as manufacturing equipment becomes faster.
本発明者はこのような製造装置が高速になるにつれて発
生する問題を改良すべく鋭意研究の結果、伸縮性部材を
伸長させる前に接着剤を塗布することにより上記問題を
解決しうろことを見いだし、本発明に到達した。即ち、
本発明は可撓性シートに伸縮性部材を連続的に接着する
方法において、接着剤を伸縮性部材に間欠的に塗布した
後伸縮性部材を伸長させて、搬送具により搬送されてい
る可撓性シートに接着することを特徴とする伸縮性部材
の接着方法を提供するものである。The inventor of the present invention conducted intensive research to improve the problems that occur as manufacturing equipment becomes faster, and found that the above problems could be solved by applying an adhesive before stretching the elastic member. , arrived at the present invention. That is,
The present invention is a method for continuously bonding a stretchable member to a flexible sheet, in which an adhesive is intermittently applied to the stretchable member, and then the stretchable member is stretched. The present invention provides a method for adhering a stretchable member to a flexible sheet.
伸縮性部材は伸長させた場合伸長させる前の約１．５〜
２．５倍の長さになるので、本発明の方法によると、伸
長させる前の伸縮性部材は製造装置内で搬送される可撓
性シートのスピードの約０．４〜０．６７倍のスピード
でよいことになり、接着剤を塗布する際に非常に有利な
条件となる。When the elastic member is stretched, it is about 1.5~
Since the length is 2.5 times longer, according to the method of the present invention, the elastic member before being stretched is approximately 0.4 to 0.67 times faster than the speed of the flexible sheet conveyed within the manufacturing equipment. Speed is the key, which is a very advantageous condition when applying adhesive.
これによって接着剤の糸引きを防止することができ、よ
り良い製品を生産することができる。This prevents the adhesive from becoming stringy and allows for the production of better products.
又、接着剤を塗布する際のスピードが低いことはより生
産性を高めることになる。Also, lower speed when applying the adhesive further increases productivity.
本発明の可撓性シートとしてはつかいすておむつの防漏
シートとして用いられるポリエチレンシート等が例示さ
れる。又、接着剤としてはホットメルト等が例示される
。Examples of the flexible sheet of the present invention include polyethylene sheets used as leak-proof sheets for disposable diapers. Further, examples of the adhesive include hot melt and the like.
伸縮性部材に接着剤を塗布したものをポリエチレンシー
ト等の可撓性シートに接着させる際に、接着剤にホット
メルトを用いるとその温度は１２０〜１５０℃の範囲に
なる。従って接着剤を塗布した伸縮性部材をポリエチレ
ンシートにそのまま接着させると熱の影響によってポリ
エチレンシートにしわが発生したり穴あきが発生し良い
製品を製造できない。従ってポリエチレンシートに伸縮
性部材を接着させる際はこの熱の影響を無くすためにポ
リエチレンシートを冷却したロールに巻きつけた状態で
行うことが好ましい。冷却ロールの温度は約５〜２５℃
が好ましい。When a stretchable member coated with an adhesive is adhered to a flexible sheet such as a polyethylene sheet, the temperature will be in the range of 120 to 150°C if hot melt is used as the adhesive. Therefore, if a stretchable member coated with adhesive is directly adhered to a polyethylene sheet, wrinkles or holes will occur in the polyethylene sheet due to the influence of heat, making it impossible to manufacture a good product. Therefore, when adhering the elastic member to the polyethylene sheet, it is preferable to wrap the polyethylene sheet around a cooled roll in order to eliminate the influence of this heat. The temperature of the cooling roll is approximately 5-25℃
is preferred.
以下、本発明の方法をつがいすておむつの製造に用いた
実施例について図面により詳細に説明する。EMBODIMENT OF THE INVENTION Hereinafter, an example in which the method of the present invention is used to manufacture a disposable diaper will be described in detail with reference to the drawings.
第１図は伸縮性部材を取りつけた一般的なつがいすてお
むつの一部切欠平面図、第２図はそのＡ−Ａ線断面図で
ある。このつがいすておむつは防漏シートとなるポリエ
チレンシート１、表面材となる不織布２及び両シートの
間に位置する吸収層３よりなり、この吸収層３０両側に
伸縮性部材４が接着されている。FIG. 1 is a partially cutaway plan view of a general disposable diaper equipped with an elastic member, and FIG. 2 is a cross-sectional view taken along the line A--A. This pair diaper consists of a polyethylene sheet 1 as a leak-proof sheet, a nonwoven fabric 2 as a surface material, and an absorbent layer 3 located between both sheets, and elastic members 4 are bonded to both sides of the absorbent layer 30. .
第３図は本発明の方法を用いたつかいすておむつの製造
装置の略示正面図である。つかいすておむつは、ポリエ
チレン原反のロール７より引き出されたポリエチレンシ
ート１が冷却ロール８に巻きつけられている状態で伸縮
性部材４と接着され、その後ホットメルトマルチビート
９を塗布され、不織布２及び吸収層３と貼り合わされる
ことにより製造される。伸縮性部材４を接着する工程に
おいては、伸長させてない状態にある伸縮性部材４がロ
ール１４，１５．１６により送り出され、ホットメルト
ガン１０によって間欠的に接着剤を塗布され、ロール１
３で一部伸長され、ニップロール１２によってポリエチ
レンシート１に接着される。この時のスピードの関係は
、ポリエチレンシートの送りスピード：ニップロール１
２＝Ｖ１、ロール１３−ｖ２、フィードロール１４，１
５．１６−Ｖ３とすると、Ｖｌ ＞Ｖ２ ＞Ｖ３となり
、Ｖ３ ／Ｖｌ ＝０．４〜０．６ となる。この〉よ
うに本発明の方法を用いると、接着剤を塗布する時のス
ピードｖ３がポリエチレンシートのスピードＶｌの０．
４〜０．６になり、ホントメルトの糸引きを防止できる
。FIG. 3 is a schematic front view of a disposable diaper manufacturing apparatus using the method of the present invention. In the disposable diaper, a polyethylene sheet 1 pulled out from a polyethylene roll 7 is wound around a cooling roll 8 and adhered to an elastic member 4, and then a hot melt multi-beat 9 is applied to the non-woven fabric. 2 and the absorbent layer 3. In the step of gluing the elastic member 4, the elastic member 4 in an unstretched state is sent out by rolls 14, 15, 16, is intermittently coated with adhesive by a hot melt gun 10, and is bonded to the roll 1.
3 and is partially stretched and bonded to the polyethylene sheet 1 by nip rolls 12. The speed relationship at this time is: polyethylene sheet feeding speed: nip roll 1
2=V1, roll 13-v2, feed roll 14,1
5.16-V3, Vl > V2 > V3, and V3 /Vl = 0.4 to 0.6. When the method of the present invention is used as described above, the speed v3 when applying the adhesive is 0.00% of the speed Vl of the polyethylene sheet.
4 to 0.6, and stringiness of the true melt can be prevented.
第１図は伸縮性部材を取りつけた一般的なつがいすてお
むつの一部切欠平面図、第２図はそのＡ−Ａ線断面図、
第３図は本発明の方法を用いたつかいすておむつの製造
装置の略示正面図である。
１−ポリエチレンシート
２−不織布
３−吸収層
４−伸縮性部材
７−ポリエチレン原反ロール
８−冷却ロール
９−ホントメルトマルチビート
１０− ホントメルトガン
１２−ニップロール
１３− ロール
１４、１５．１６− フィードロール
出願人代理人 古 谷 馨
第 １ 図
第 ２ 図Fig. 1 is a partially cutaway plan view of a general pair diaper with an elastic member attached, Fig. 2 is a cross-sectional view taken along line A-A,
FIG. 3 is a schematic front view of a disposable diaper manufacturing apparatus using the method of the present invention. 1-Polyethylene sheet 2-Nonwoven fabric 3-Absorbent layer 4-Stretchable member 7-Polyethylene raw roll 8-Cooling roll 9-Hontomelt multibeat 10-Hontomelt gun 12-Nip roll 13-Roll 14, 15.16-Feed Roll applicant's agent Kaoru Furuya Figure 1 Figure 2
Claims (1)
法において、接着剤を伸縮性部材に間欠的に塗布した後
伸縮性部材を伸長させて、搬送具により搬送されている
可撓性シートに接着することを特徴とする伸縮性部材の
接着方法。 ２、 可撓性シートがポリエチレンシートである特許請
求の範囲第１項記載の接着方法。 ３、 搬送具が５〜２５℃に冷却されている特許請求の
範囲第１項記載の接着方法。[Claims] 1. In a method of continuously bonding a stretchable member to a flexible sheet, an adhesive is intermittently applied to the stretchable member, the stretchable member is stretched, and the stretchable member is transported by a conveyor. A method for adhering a stretchable member, the method comprising adhering the elastic member to a flexible sheet. 2. The adhesion method according to claim 1, wherein the flexible sheet is a polyethylene sheet. 3. The bonding method according to claim 1, wherein the conveyor is cooled to 5 to 25°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58223860A JPS60125647A (en) | 1983-11-28 | 1983-11-28 | Adhering method of elastic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58223860A JPS60125647A (en) | 1983-11-28 | 1983-11-28 | Adhering method of elastic material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60125647A true JPS60125647A (en) | 1985-07-04 |
Family
ID=16804837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58223860A Pending JPS60125647A (en) | 1983-11-28 | 1983-11-28 | Adhering method of elastic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125647A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01254864A (en) * | 1988-04-05 | 1989-10-11 | Fuji Photo Film Co Ltd | Dry type chemical analysis slide and production thereof |
-
1983
- 1983-11-28 JP JP58223860A patent/JPS60125647A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01254864A (en) * | 1988-04-05 | 1989-10-11 | Fuji Photo Film Co Ltd | Dry type chemical analysis slide and production thereof |
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