JPH02189148A - Mounting method for resilient member for disposal diaper - Google Patents
Mounting method for resilient member for disposal diaperInfo
- Publication number
- JPH02189148A JPH02189148A JP1202627A JP20262789A JPH02189148A JP H02189148 A JPH02189148 A JP H02189148A JP 1202627 A JP1202627 A JP 1202627A JP 20262789 A JP20262789 A JP 20262789A JP H02189148 A JPH02189148 A JP H02189148A
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- rubber
- rubber threads
- threads
- separated
- 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
- 238000000034 method Methods 0.000 title claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 100
- 230000002745 absorbent Effects 0.000 claims abstract description 14
- 239000002250 absorbent Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 abstract description 3
- 229920006255 plastic film Polymers 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 22
- 239000004831 Hot glue Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000004745 nonwoven fabric Substances 0.000 description 6
- 238000010009 beating Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 244000043261 Hevea brasiliensis Species 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920003052 natural elastomer Polymers 0.000 description 3
- 229920001194 natural rubber Polymers 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229940081566 rondex Drugs 0.000 description 2
- 208000010300 Genu Varum Diseases 0.000 description 1
- 241001553014 Myrsine salicina Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、使い捨ておむつ会舎イの弾性部材の取付方法
に関する。更に詳くけ、パンツ型使い捨ておむつの両側
縁を幼児の脚囲りに密接するための弾性部材の◆嬶換等
→→取付方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for attaching an elastic member to a disposable diaper store. More specifically, the present invention relates to a method for attaching an elastic member for bringing both side edges of a pants-type disposable diaper into close contact with the leg area of an infant.
従来一般に実用に供されている・９ンツ型おむつは、そ
の両側縁を幼児の脚囲シに密接するための弾性部材を備
え、斯かる使い捨ておむつの代表的なものは、Ｕ、Ｓ、
特許第３．８６０．００３号に於て開示されている。こ
の弾性部材としては通常、１本のコ９ムテープがおむつ
の両側縁に取付けられている。Nine-pants type diapers, which have been put into practical use in the past, are equipped with elastic members for bringing both sides of the diaper into close contact with the infant's leg circumference, and typical disposable diapers include U, S,
It is disclosed in Patent No. 3.860.003. This elastic member is usually a single comb tape attached to both side edges of the diaper.
斯かるゴムテープを取付けたおむつは、その着用状態に
於て幼児の脚囲シを線状に局部的に強く圧迫するので、
幼児の脚囲シに線状に圧迫マークが付き、更には、比較
的長時間着用した場合には、幼児に痛みを与える。A diaper to which such rubber tape is attached applies strong local pressure to the infant's leg circumference in a linear manner when the diaper is worn.
Linear pressure marks are left on the infant's leg circumference, and furthermore, when worn for a relatively long period of time, it causes pain to the infant.
斯かる欠点を除去するため、弾性部材として、比較的幅
広く形成したゴムテープを用いることが提案されている
。然るに、斯く形成したゴムテーグを用いる場合には、
次の点で不利である。In order to eliminate this drawback, it has been proposed to use a relatively wide rubber tape as the elastic member. However, when using the rubber tag formed in this way,
It is disadvantageous in the following points.
即ち、ゴムテープは、その成形加工上、従来この種の弾
性部材として用いられているゴムテープの厚さよシも極
薄に形成することが困難であり、仮に成形することが出
来たとしても、全体に亘って均一な厚さを有するゴムテ
ープを得ることは至難である。従って、従来の弾性部材
としてのゴムテープの幅を広く形成し、且つ該部材と同
様の伸長率でおむつに取付けると、その引張応力が強す
ぎるので、幼児の胸囲シに対する圧迫が強すぎることに
なる。このため、一般に幼児の脚囲りに対する圧迫に適
当とされている引張応力を有する弾性部材を得るには該
部材を広く形成した幅に応じて伸長率を低下させる必要
がある。このことは、弾性部材として、これを広く形成
した幅の分の素材量と、伸長倍率を低下させることによ
り必要となった分の素材量との両分量だけ増加してコス
ト高を招く結果となる。コスト高になると、低コストで
提供されるべき使い捨ておむつとしては不利である。In other words, due to its molding process, it is difficult to form a rubber tape as thin as the thickness of the rubber tape conventionally used as this type of elastic member, and even if it were possible to form it, the overall thickness would be It is extremely difficult to obtain a rubber tape with uniform thickness over the entire area. Therefore, if a rubber tape as a conventional elastic member is formed with a wide width and attached to a diaper with the same elongation rate as the member, the tensile stress will be too strong and the pressure on the infant's chest will be too strong. . Therefore, in order to obtain an elastic member having a tensile stress that is generally considered suitable for compressing the leg area of an infant, it is necessary to reduce the elongation rate in accordance with the width of the member. This results in an increase in cost as the amount of material required for the elastic member increases by both the amount of material needed to make it wider and the amount of material required by reducing the elongation magnification. Become. The high cost is disadvantageous for disposable diapers that should be provided at low cost.
斯かる欠点は、本発明に関して後述するところから理解
される如く、弾性部材として数本の細いゴム糸を用いる
ことにより解決することが可能である。然るに、使い捨
ておむつは、低コス上で量産される必要があり、而も弾
性部材としてのゴム糸は、おむつの構成部材であるグラ
スチックフィルム等から成るパックシート及び／又は不
織布等から成るトップシートに接着剤により接着する必
要がある。然るに、おむつの弾性部材としてのゴム糸は
、従来一般におむつに用いられているゴムテープに比較
して非常に細いものを用いるのでなければ、前記欠点を
充分に解決することが出来ないのであるが、用いようと
するゴム糸が非常に細くてその本数が増加する程、それ
らのコ９ム糸を前記シートに接着する際のそのゴム糸の
処理が容易ではなくその作業能率が低下することになる
。This drawback can be overcome by using several thin rubber threads as the elastic member, as will be understood from the description of the invention below. However, disposable diapers need to be mass-produced at low cost, and the rubber thread as an elastic member is used as a pack sheet made of a glass film or the like and/or a top sheet made of a nonwoven fabric, etc., which are the constituent members of the diaper. It is necessary to attach it with adhesive. However, unless the rubber thread used as the elastic member of the diaper is much thinner than the rubber tape commonly used in diapers, the above-mentioned drawbacks cannot be satisfactorily solved. As the rubber threads to be used are very thin and the number of them increases, it becomes difficult to process the rubber threads when adhering them to the sheet, and the work efficiency decreases. .
従って、本発明の目的は、従来一般に使い捨ておむつの
弾性部材として用いられているゴムテープに比較して非
常に細く形成され適宜間隔で並列に配置された数本のゴ
ム糸から成る弾性部材を備え、これによりおむつのサイ
ドフラップに数本の伸縮線を作って、幼児の脚囲シに対
する該サイド本発明の他の目的は、前述の如く弾性部材
として非常に細く形成され適宜間隔で並列に配置された
数本のコ゛ム糸を用いることにより、従来一般に使い捨
ておむつの弾性部材として用いられているゴムテープに
比較してそれらゴム糸の伸長率を大きくして、それらゴ
ム糸の使用長さを短かくすることが出来、その結果、該
ゴムテープに比較しである。Therefore, an object of the present invention is to provide an elastic member made of several rubber threads which are formed to be much thinner than rubber tapes conventionally generally used as elastic members of disposable diapers and arranged in parallel at appropriate intervals. Another object of the present invention is to create several elastic lines on the side flaps of the diaper, so that the side flaps of the diaper can be formed into very thin elastic members and arranged in parallel at appropriate intervals. By using several comb threads, the elongation rate of these rubber threads is increased compared to the rubber tape conventionally used as an elastic member of disposable diapers, and the length of use of these rubber threads is shortened. As a result, compared to the rubber tape.
本発明の更に他の目的は、弾性部材としての数本のゴム
糸を使い捨ておむつの構成部材に取付ける際、それらコ
９ム糸として、これらが潜在的に分離能力を有する疑似
接合によりテープ状型態を維持しているものを用い、そ
れらゴム糸を所望本数に整然と分廟しながら前記構成部
材に連続的に供給して接着剤を介して接着することによ
り、それらゴム糸を能率的に取付けることが可能な使い
捨ておむつの弾性部材の取付方法を提供することにある
。Still another object of the present invention is that when attaching several rubber threads as elastic members to constituent members of a disposable diaper, these rubber threads are used as comb threads to form a tape-like shape by pseudo-bonding that has a potential separation ability. The rubber threads are efficiently attached by using rubber threads that maintain the same condition and continuously supplying them to the component while orderly dividing them into a desired number and bonding them with an adhesive. An object of the present invention is to provide a method for attaching an elastic member of a disposable diaper.
更に本発明のその他の目的は、本発明に関する以下の記
述から明らかにされよう。Furthermore, other objects of the invention will become apparent from the following description of the invention.
以下、本発明の実施態様を添付図面を参照して説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図、第２図について述べると、使い捨ておむつ１０
は、不織布等の透水性ト、！シー）１１と、グラスチッ
クフィルム等のパワクシ−）１２と、両シー）１１．１
２間に粉砕ノ９イグ等の吸収体１３と、吸収体１３の両
外側縁から外方に延出して和会する両シー）１１．１２
により形成される各サイドフラッフ’１４中に配置され
その長手方向へ伸縮する弾性部材１５とを備えている。Regarding FIGS. 1 and 2, the disposable diaper 10
The water permeability of non-woven fabrics, etc. 11.
11.12 An absorbent body 13 such as a crushing material 13 between the two, and two seams extending outward from both outer edges of the absorbent body 13 and meeting together.
The elastic member 15 is arranged in each side fluff 14 formed by the elastic member 15 and expands and contracts in the longitudinal direction thereof.
斯かるおむつ１０は、これを幼児に着用させる際、その
一方の腰囲り１７の両側端に取付けられた感圧テープ１
９をその他方の腰囲シ１８の両側端に接着することによ
り組立てられる。本発明に於ける弾性部材１５は、以下
に詳述する如く数本のゴム糸から成るが、弾性部材が１
本のゴムテープから成る前記構成を有する使い捨ておむ
つは公知に属する。When such a diaper 10 is worn by an infant, pressure-sensitive tapes 1 are attached to both ends of one waist circumference 17.
9 to both side ends of the other waist circumference 18. The elastic member 15 in the present invention is composed of several rubber threads as described in detail below.
Disposable diapers having the above-mentioned structure consisting of a rubber tape are known.
第１図、第２図に於ては、互に間隔を置いて並列に配置
された３本のゴム糸１５Ａから成る弾性部材１５を各サ
イドラ２ツ７”１４に有するおむつ１０を示しであるが
、本発明に於ては、弾性部材１５として、１本の断面積
が０．０３５ｍ２乃至０．４５ｍ２である３本乃至４５
本のゴム糸でありて、総合断面積が０．０９ ｔｍ２乃
至１．３５協２であるものから成るものが各サイドフラ
ッｆ１４に用いられ得る。そして、４５本のゴム糸１５
Ａは、それら各々の断面積が等しくても、又はそれらの
中の成る本数の断面積が異なっていても良い。後者が用
いられる場合には、例えば、断面積の小さいゴム糸１５
Ａが各サイドフラッｆ１４中の内側に、且つ断面積の大
キいコ９ム糸１５Ａが各サイドフラ、ｆ１４中の外側に
配置される。然し、後述する本発明方法を実施する上で
は、前者が用いられることが好ましい。斯様に３本乃至
４５本のゴム糸１５Ａ（方略サイドフラップ１４に用い
られる本発明のおむつ１０に於ては、各サイドフラッｆ
１４に３本乃至４５本の伸縮線が作られ、これらの伸縮
線は各サイドフラップ１４を幼児Ｏ脚間りに良好に密着
する機能を有している。各ゴム糸１５Ａの断面形は、円
形、楕円形、方形、更には、第３図（Ａ）及び（Ｂ）に
示す如く複数本の断面円形のゴム糸１５ａが互に一体に
並列に接合した形であっても良い。1 and 2 show a diaper 10 having an elastic member 15 on each side 2 7" 14 consisting of three rubber threads 15A arranged in parallel at intervals. However, in the present invention, as the elastic member 15, 3 to 45 elastic members each having a cross-sectional area of 0.035 m2 to 0.45 m2 are used.
A genuine rubber thread having a total cross-sectional area of 0.09 tm2 to 1.35 tm2 may be used for each side flap f14. And 45 rubber threads 15
A may have the same cross-sectional area, or may have different cross-sectional areas. When the latter is used, for example, a rubber thread 15 with a small cross-sectional area
A is arranged on the inside of each side flap f14, and a comb yarn 15A having a large cross-sectional area is arranged on the outside of each side flap f14. However, in carrying out the method of the present invention described later, it is preferable to use the former. In this way, 3 to 45 rubber threads 15A (in the diaper 10 of the present invention used for the side flaps 14, each side flap f
14 are made with 3 to 45 elastic lines, and these elastic lines have the function of keeping each side flap 14 in close contact with the infant's bow leg. The cross-sectional shape of each rubber thread 15A is circular, elliptical, or rectangular. Furthermore, as shown in FIGS. 3(A) and (B), a plurality of rubber threads 15a having a circular cross-section are joined together in parallel It may be a shape.
斯く接合した断面形のゴム糸１５Ａは、例えば、各ゴム
糸１５ａの成形後、これらが冷却固化しな踏量にこれら
を互に一体に融着させることにより得られる。The rubber threads 15A having such a joined cross-sectional shape can be obtained, for example, by molding the respective rubber threads 15a, and then melting them together so that they do not solidify upon cooling.
斯く弾性部材１５として、数本のゴム糸１５Ａを用いる
場合には、これらゴム糸１５Ａの総合断面積、材質、伸
長率が１本のコ９ムテープのそれらと同じてらっても、
前孟が後者に比較して引張強力が低く、伸長率が高い、
又伸長率についてのバラツキ許容範囲が大きい。このこ
とは、本発明者等の実験結果を示す第１１図及び第１２
図から理解されよう。When several rubber threads 15A are used as the elastic member 15, even if the overall cross-sectional area, material, and elongation rate of these rubber threads 15A are the same as those of one piece of tape,
The former has lower tensile strength and higher elongation rate than the latter.
Furthermore, the tolerance for variation in elongation rate is wide. This can be seen in Figures 11 and 12, which show the experimental results of the inventors.
This can be understood from the diagram.
第１１図は、縦軸に引張強力（めを採り、横軸に伸長率
（→を採って、比較試料１．Ｉ［を引張った場合の各特
性曲線を示すグラフでらって、試料Ｉは天然ゴムから作
られた長さ１００ｍ、幅６．６ ｍ 。Figure 11 is a graph showing each characteristic curve when comparative sample 1. is 100 m long and 6.6 m wide, made from natural rubber.
厚さ０．２−の１本のゴムテープであシ、試料ｎは試料
の幅を三等分して幅２．２１を有する３本のゴムテープ
となしたものである。例えば、幼児の脚囲シに対する適
度の圧迫力を得るための弾性部材の引張強力１３０Ｉを
得るのには、試料Ｉでは約１２０％だけしか伸長させる
ことが出来ないのに対して、試料■では約１７０％をも
伸長させることが出来る。One piece of rubber tape had a thickness of 0.2 mm, and sample n was obtained by dividing the width of the sample into thirds to form three rubber tapes each having a width of 2.21 mm. For example, in order to obtain a tensile strength of 130I for the elastic member to obtain an appropriate compressive force against the infant's leg circumference, Sample I can only be stretched by about 120%, while Sample ■ It is possible to elongate it by about 170%.
第１２図は、第１１図のグラフの一部を拡大して示す概
略図であって、おむつに試料１．ｎを取付けるだめの設
計として、試料１．ＩＩの引張強力を１３０１！、その
バラツキ許容範囲±ＩＯＮとした場合、試料１．ＩＩの
伸長率についてのバラツキ許容範囲を示すものである。FIG. 12 is a schematic diagram showing an enlarged part of the graph in FIG. 11, in which sample 1. Sample 1. The tensile strength of II is 1301! , when the variation tolerance range is ±ION, sample 1. This shows the allowable range of variation in the elongation rate of II.
伸長率についてのバラツキ許容範囲は、試料！では約２
７％、試料■で約３４％でおる。斯く試料皿が試料Ｉに
比較して伸長率についてのバラツキ許容範囲が大きいか
ら、後述する本発明方法を実施する場合の弾性部材の伸
長工程での該伸長調整が容易である。The allowable range of variation in elongation rate depends on the sample! So about 2
7%, and about 34% for sample ■. Since the sample plate has a wider tolerance for variation in elongation rate than Sample I, it is easier to adjust the elongation in the process of elongating the elastic member when carrying out the method of the present invention, which will be described later.
斯かる本発明者等の実験結果から明らかの如く、弾性部
材１５として、１本のゴムテープを数本に分割したもの
に相当する数本のコ９ム糸１５Ａを用いた場合と、１本
のゴムテープを用いた場合とでは、前者が後者に比較し
て引張強力が低いから、前者は幼児の脚囲シに対する所
要の圧迫力を得るのに後者よりも伸長率を高くして用い
ることが出来る、換言すれば、弾性部材１５の長さを短
かくして用いることが出来る。従って、弾性部材１５と
して数本のゴム糸１５Ａを用いる本発明に於けるおむつ
によれば、弾性部材１５として１本のゴムテープを用い
る従来のおむつに比較して、弾性部材１５の素材使用量
を少なくして、それだけおむつを低コストで生産するこ
とが可能になる。As is clear from the experimental results of the present inventors, there are cases in which several comb threads 15A, which are equivalent to one rubber tape divided into several threads, are used as the elastic member 15; When using rubber tape, the former has a lower tensile strength than the latter, so the former can be used at a higher elongation rate than the latter to obtain the necessary compressive force against the infant's leg circumference. In other words, the length of the elastic member 15 can be shortened. Therefore, according to the diaper of the present invention that uses several rubber threads 15A as the elastic member 15, the amount of material used for the elastic member 15 can be reduced compared to the conventional diaper that uses one rubber tape as the elastic member 15. By reducing the number of diapers, it becomes possible to produce diapers at a lower cost.
弾性部材１５としてのゴム糸１５Ａは、その本数が多く
なる程、引張強力が低くなるから、それだけ伸長率を高
くすることにより、前記利点を増大させることが出来る
が、本発明者等の研究に於て、天然ゴムから作られ、０
．０３ ｓｒｓ”乃至０．４５腑２の断面積を有する３
本乃至４５本からなり、これらの総合面積が０．０９ｍ
−乃至１．３５ ＋ｕ”であるゴム糸の場合、その伸長
率が４００％以上になるとその引張強力が急上昇し、そ
の結果、幼児の脚囲シにはっきシ圧迫マークを付けるこ
とが判明した。従って、本発明に於けるおむつの弾性部
材１５としては、伸長率が１００％乃至４００％、好ま
しくは、１５０チ乃至３５０％、更に好ましくは２５０
チ乃至３００％になるように伸長させて用いられる。As the number of rubber threads 15A as the elastic member 15 increases, the tensile strength decreases, so by increasing the elongation rate accordingly, the above advantages can be increased. Made from natural rubber, 0
．． 3 with a cross-sectional area of 0.03 srs" to 0.45"
Consisting of 45 books, the total area of which is 0.09m.
- to 1.35 + u'', its tensile strength sharply increases when its elongation rate exceeds 400%, and as a result, it has been found that it leaves visible pressure marks on the leg circumference of infants. Therefore, the elastic member 15 of the diaper according to the present invention has an elongation rate of 100% to 400%, preferably 150% to 350%, and more preferably 250%.
It is used after being stretched to 300%.
伸長率が１００％以下であると、ゴム素材の使用量が増
加し不経済になる。因みに、従来のこの種の弾性部材と
しては、例えば、厚さ０．２０１ｍ、幅６．６絽程度の
１本のコ９ムテーグが伸長率７０チ〜１００チ程度で伸
長されて使用されている。尚、ここで伸長率１００％と
いうのは、例えば、長さ１００絹の弾性部材を２００１
１まで伸長させた場合のこ１５として１本の断面積が小
さい数本のゴム糸１５Ａを間隔を置いて並列に配置して
取付けられるから、その取付部に於ける弾性部材の見掛
は上の幅（第２図にＷで示す部分参照）が広くなり、そ
のため幼児の脚囲りに対する圧迫感が少なく、比較的長
時間に亘シおむつを着用した場合でも幼児に痛みを与え
たり、圧迫マークが付くことが少ない。斯かる効果を生
じさせるには、おむつの構成部材であるトップシート１
１、バックシート１２、吸収体１３の剛性等により多少
の差異があるが、弾性部材１５としての数本のゴム糸１
５Ａは、吸収体１３の外側縁から外方へ幅１０■乃至３
５■、更に好ましくは幅１５ｍ乃至２０ｍの範ゴム１５
Ａから成る弾性部材１５は、おむつの着用状態に於て見
掛は上一体的に作用するが、これらゴム糸１５Ａは分離
しているから、これらゴム糸１５Ａの伸縮挙動がそれぞ
れ独立状態で行われ、そのためこれらゴム糸１５Ａによ
る幼児の胸囲シに対する密着性を良好に保つととが出来
る。又斯く弾性部材１５が分離しているから該弾性部材
の取付部の通気性が妨げられることがない。If the elongation rate is less than 100%, the amount of rubber material used increases and becomes uneconomical. Incidentally, as a conventional elastic member of this type, for example, a single piece of 9-piece tape with a thickness of 0.201 m and a width of about 6.6 kat is used after being stretched at a stretching rate of about 70 inches to 100 inches. . Note that the elongation rate of 100% here means, for example, that an elastic member made of silk with a length of 100% is
When stretched to 15, several rubber threads 15A each having a small cross-sectional area are arranged in parallel at intervals and attached, so the appearance of the elastic member at the attachment part is The width of the diaper (see the part marked W in Figure 2) is wider, so there is less pressure on the infant's leg area, and even if the diaper is worn for a relatively long time, it will not cause pain or pressure on the infant. Marks are rarely attached. In order to produce such an effect, the top sheet 1, which is a component of the diaper, must be
1. Although there are some differences depending on the rigidity of the back sheet 12 and the absorbent body 13, several rubber threads 1 as the elastic member 15.
5A is a width of 10cm to 3cm outward from the outer edge of the absorbent body 13.
5■, more preferably a range rubber 15 with a width of 15m to 20m
The elastic member 15 consisting of A appears to act in an integrated manner when the diaper is worn, but since these rubber threads 15A are separated, the elastic member 15A acts independently. Therefore, it is possible to maintain good adhesion of the rubber threads 15A to the infant's chest circumference. Furthermore, since the elastic member 15 is separated, the air permeability of the attachment portion of the elastic member is not hindered.
第４図に於ては、本発明方法を実施する際に用いるため
の弾性部材１５の一例を示しである。弾性部材１５は、
断面方形であって断面積が実質的に等しい６本のコ９ム
糸１５Ａから成シ、且つこれらコ０ム糸１５Ａが潜在的
に分離能力を有する疑似接合によりテープ状型態を維持
している。斯かるゴム糸１５Ａ間の接合目２０は、各ゴ
ム糸１５Ａの成形後これらが他の物体に接着するのを防
止するため、これらにタルク等の粉末を散布した後、軽
く接触させることにより生じた僅かな融着部又は仮接合
部である。従って、各ゴム糸１５Ａには前記粉末が付着
しておシ、使用に際しては、必要に応じて除去される。FIG. 4 shows an example of an elastic member 15 for use in carrying out the method of the present invention. The elastic member 15 is
It is made up of six comb yarns 15A that are square in cross section and have substantially equal cross-sectional areas, and these comb yarns 15A maintain a tape-like shape by pseudo-joining that has a potential separation ability. There is. The joints 20 between the rubber threads 15A are formed by spraying powder such as talc on the rubber threads 15A and lightly contacting them after forming them to prevent them from adhering to other objects. There are only a few fused or temporary joints. Therefore, the powder adheres to each rubber thread 15A, and is removed as necessary during use.
又前記接合目２０はその線上に沿って極く僅かの引裂力
により整然と分離され得る。因みに、本発明に於ては、
既述した如くおむつ１０の各サイドフラッフ”１４に３
本乃至４５本のゴム糸１５Ａが取付けられるのでおるか
ら、その取付けのための供給に際しては、ゴム糸１５Ａ
が仮接合したものとしては、最も少ない場合では６本、
最も多い場合では９０本仮接合したものが用いられる。Also, the joint 20 can be neatly separated along its line with negligible tearing force. Incidentally, in the present invention,
As mentioned above, each side fluff of the diaper 10 is 3 in 14.
Since 15 to 45 rubber threads 15A are attached, when supplying the rubber threads 15A for attachment,
The minimum number of temporary joints is 6,
In most cases, 90 pieces temporarily joined are used.
斯く数本のゴム糸１５Ａが仮接合したものは、横浜市港
北区のロンデックゴム糸（株）から商品名「ロンデック
ス」の下に入手することができる。A product in which several rubber threads 15A are temporarily joined can be obtained from Rondex Rubber Thread Co., Ltd. in Kohoku Ward, Yokohama City under the trade name "Rondex".
第５図乃至第７図に於ては、本発明方法を実施するため
の装置の概略図を示しである。装置は、弾性部材１５の
供給機構部Ａと、ドラフト機構部Ｂと、分離機構部Ｃと
、適用機構部Ｅとを備えている。5 to 7 show schematic diagrams of an apparatus for carrying out the method of the invention. The apparatus includes a supply mechanism section A for the elastic member 15, a draft mechanism section B, a separation mechanism section C, and an application mechanism section E.
供給機構部Ａは、弾性部材１５の収納容器２１と、ガイ
ド環２２と、ガイドロール２３．２４とを備えておシ、
弾性部材１５は供給機構部Ａからドラフト機構部Ｂへ導
かれる。The supply mechanism section A includes a storage container 21 for the elastic member 15, a guide ring 22, and guide rolls 23 and 24.
The elastic member 15 is guided from the supply mechanism section A to the draft mechanism section B.
ドラフト機構部Ｂは、ニップロール２５とこれよシも周
面速度の高いニップロール２６と、これらロール２５と
２６との間にクリーニングロール２７と、両側板２８間
の周忌に間隔を置いて数本のロッド２９が固定されてい
るビーティングロール３０とを備えている◇弾性部材１
５は、ニップロール２５と２６との間に於て所望伸長率
に延伸され、その間に於て、クリーニングロール２７に
より既述した粉末を除去された後、ビーティングロール
３０により叩打される。除去された粉末は、クリーニン
グロール２７の近傍に配置されているサクション装置等
のタンク（図示せず）に回収される。第５図乃至第７図
に示しである装置によ）処理し得る弾性部材１５として
は、第４図に示しであるものに限定されないが、便宜上
第４図に示しであるものを例に採って述べると、この弾
性部材１５は、既述した如く、６本のｔム糸１５Ａから
成シ且つこれらが互に並列に仮接合しているものである
が、二つのブロック１５Ａ１と１５Ａ２とに分離され、
各ブロック１５Ａｒ 、１５Ａ２の間にビーティングロ
ール３０が介在するようにこれに各ブロック１５ Ａｌ
ｐ １５ Ａ２が掛けられる。斯く掛けられた状態で弾
性部材１５がニップロール２６により引張られることに
より、弾性部材１５はビーティングロール３０により順
次前述の如く各ブロック１５Ａ４．１５Ａｚに′分離さ
れると共に、各ブロックｌ ５ Ａｔ ｔ １５ Ａ２
が、分離機構部Ｃに於て更に１本づつのゴム糸１５Ａに
分離され易いように叩打され、分離機構部Ｃへ導かれる
。The draft mechanism part B includes a nip roll 25 and a nip roll 26 having a higher circumferential speed, a cleaning roll 27 between these rolls 25 and 26, and several rolls placed at intervals on the periphery between both side plates 28. ◇Elastic member 1 includes a beating roll 30 to which a rod 29 is fixed.
5 is stretched to a desired elongation rate between nip rolls 25 and 26, during which the powder described above is removed by a cleaning roll 27, and then beaten by a beating roll 30. The removed powder is collected in a tank (not shown) such as a suction device located near the cleaning roll 27. The elastic member 15 that can be processed (by the apparatus shown in FIGS. 5 to 7) is not limited to the one shown in FIG. 4, but for convenience, the one shown in FIG. 4 is taken as an example. As described above, this elastic member 15 is made up of six T-threads 15A, which are temporarily joined in parallel to each other, but it is made up of two blocks 15A1 and 15A2. separated,
Each block 15Al is interposed between each block 15Ar and 15A2 so that a beating roll 30 is interposed between each block 15Ar and 15A2.
p 15 A2 is multiplied. By pulling the elastic member 15 in this suspended state by the nip roll 26, the elastic member 15 is sequentially separated into each block 15A4.15Az by the beating roll 30 as described above, and each block l5Att15A2
is further beaten in the separation mechanism section C so that it can be easily separated into rubber threads 15A one by one, and guided to the separation mechanism section C.
分離機構部Ｃは、二、ブロール３１．３２と、これらロ
ール３１．３２の間に上下に段差を有するガイドロッド
３４，３５．３６と、ガイドロール３７．３８．３９と
を備えている。各ブロック１５Ａｔ ＊ １５ Ａ２は
各１本のコ９ム糸１５Ａに分離され、その中の１本のゴ
ム糸１５Ａがガイトロ、ド３４、ガイドロール３７の上
面に掛けられ、その中の他の１本のコ９ム糸１５Ａがガ
イトロ、ド３５゜ガイドロール３８の上面に掛けられ、
その中の他の１本ゴム糸１５Ａがガイトロ、ド３６．ガ
イドロール３９の上面に掛けられる。斯く掛けられた状
態で各ブロック１５Ａ、、１５Ａ、が前記伸長状態ヲ保
チながらニップロール３２へ導かれることにより、各ブ
ロック１５Ａｉ ＊ １５Ａｓはガイドロッド３４．３
５．３６及びガイドロール３７ 、３８ 。The separation mechanism section C includes two blow rolls 31.32, guide rods 34, 35.36 having vertical steps between these rolls 31.32, and guide rolls 37.38.39. Each block 15At*15A2 is separated into one rubber thread 15A, and one of the rubber threads 15A is hung on the upper surface of the guide roll 34 and the guide roll 37. A real comb thread 15A is hung on the upper surface of the 35° guide roll 38,
The other rubber thread 15A among them is Gaitro, Do 36. It is hung on the upper surface of the guide roll 39. In this hung state, each block 15A, , 15A is guided to the nip roll 32 while maintaining the elongated state, so that each block 15Ai * 15As is connected to the guide rod 34.3.
5.36 and guide rolls 37, 38.
３９の引裂作用により順次前述の如く各１本９・・・糸
１５Ａに分離され、適用機構部Ｅへ導かれる。By the tearing action of 39, each thread 9 is separated into threads 15A as described above, and guided to the application mechanism section E.
適用機構部Ｅは、局面に数条の溝４０（第７図参照）を
有するガイドロール４１．ノズル４２とチーリングロー
ル４３とを備えている。適用機構部Ｅの近傍には、圧着
ロール４４と、二、ｆロール４５と、おむつのバックシ
ートとすべきプラスチックフィルム１２を巻回して支持
する供給ロール４６と、おむつのトップシートとすべき
不織布１１を巻回して支持する供給ロール４７と、ガイ
ドロール４８と、おむつの吸収体１３を移送するコンベ
ア４９と、ガイドロール５０，５１１とが配置されてい
る。各１本のイム糸１５Ａは、各ガイドロール４１の＃
４０を軽て後述する各ノズル４２を通ってこれによりホ
、トメルト型接着剤を塗布され且つおむつのサイドフラ
ップ１４に配置すべき間隔を規制されながら、チーりン
ダロール４３の上面に連続的に導かれているプラスチッ
クフィルム１２の上面の両側に前記伸長状態を保ちなが
ら連続的に接着される（第７図参照）と共に、前記接着
剤はテーリングロール４３によ）冷却固化される。一方
、第７図に示す如く不織布１１がガイドロール４８を介
して前記プラスチ、クフイルム１２の上面に導かれると
共に、これら不織布１１とプラスチ、クスイルム１２と
の間に、予め形成された各吸収体１３が前後方向に一定
間隔を置いてコンベア４９により送込まれて挾まれる。The applied mechanism section E includes a guide roll 41. which has several grooves 40 (see FIG. 7) on its curved surface. It includes a nozzle 42 and a cooling roll 43. In the vicinity of the application mechanism section E, there are a pressure roll 44, a second and f roll 45, a supply roll 46 for winding and supporting the plastic film 12 to be used as the backsheet of the diaper, and a nonwoven fabric to be used as the topsheet of the diaper. A supply roll 47 that winds and supports the diaper absorbent 11, a guide roll 48, a conveyor 49 that transports the diaper absorbent 13, and guide rolls 50 and 511 are arranged. Each one im thread 15A is # of each guide roll 41.
40 passes through each nozzle 42, which will be briefly described later, to apply the tomelt-type adhesive and continuously guide it to the upper surface of the colder roll 43 while regulating the interval at which it should be placed on the side flaps 14 of the diaper. The adhesive is continuously adhered to both sides of the upper surface of the plastic film 12 while maintaining the stretched state (see FIG. 7), and the adhesive is cooled and solidified by the tailing roll 43). On the other hand, as shown in FIG. 7, the nonwoven fabric 11 is guided to the upper surface of the plasti and kufilm 12 via the guide roll 48, and each absorbent body 13 formed in advance is placed between the nonwoven fabric 11 and the plasti and kufilm 12. are fed and sandwiched by the conveyor 49 at regular intervals in the front-back direction.
不織布１１とプラスチ、クフィルム１２とは、図示され
ていないが、それらが互に重合される前に、所要位置に
配置された別のノズルによりホットメクト型接着剤をそ
れらの内面に塗布されて互に接合されると共に、それら
の間に吸収体１３が一定間隔を置いて固定される。斯く
して形成されたおむつの連続体５２は圧着ロール４４に
圧着され、第１図に示す如き１個づつのおむつ１０に切
断されるべき次の工程（図示せず）へ移送される。Although not shown, the nonwoven fabric 11, plastic, and film 12 are coated with a hot-mect type adhesive on their inner surfaces by another nozzle placed at a predetermined position before being superposed on each other. At the same time, the absorbent body 13 is fixed at a constant interval between them. The diaper continuous body 52 thus formed is crimped onto a crimping roll 44 and transferred to the next step (not shown) in which it is cut into individual diapers 10 as shown in FIG.
第８図乃至第１０図に於ては、前記ノズル４２の構造の
一例を示しである。ノズル４２は、三角柱状の第１部材
５３と、板状の第２部材５４と、板状の第３部材５５と
から成る。第１部材５３は、その−側面の中央部に開口
する導入孔５６と、これと連通して第１部材５３の長手
方向に長い分配孔５７と、これと連通して他側面の長手
方向に設けられた凹条溝５８に一定間隔を置いて開口す
る数個の噴出小孔５９と、第１部材５３の一端部に一定
間隔を置いて設けられた数個のスリ、トロ０とを有して
いる。第２部材５４は、その一端部に前記スリ、トロ０
と同間隔を置いて三角状のスリット６１を有している。An example of the structure of the nozzle 42 is shown in FIGS. 8 to 10. The nozzle 42 includes a triangular prism-shaped first member 53, a plate-shaped second member 54, and a plate-shaped third member 55. The first member 53 has an introduction hole 56 opening in the center of one side thereof, a distribution hole 57 communicating with this and extending in the longitudinal direction of the first member 53, and communicating with this and extending in the longitudinal direction of the other side. It has several small ejection holes 59 that open at regular intervals in the provided groove 58, and several slots and slots provided at regular intervals at one end of the first member 53. are doing. The second member 54 has the above-mentioned slot at one end.
It has triangular slits 61 spaced at the same intervals.
第３部材５５は、その−端部に前記スリ、トロ０と同間
隔を置いてスリットロ２を有している。第１部材５３と
第２部材５４と第３部材５５とは、これらのネジ孔６３
にネジ６４を通すことにより一体に結合されノズル４２
を形成している。斯かる構造を有するノズル４２は、第
５図に示しである前記ガイドロール４１とテーリングロ
ール４３との間の、弾性部材１５としての各３本のゴム
糸１５Ａの移動域にスリット６０，６１．６２から成る
スロワトロ５が下向きになるようにそれぞれ配置され、
図示してないが、導入孔５６にはホットメルト型接着剤
の供給、その停止、その址を規制することが可能なタン
クが連結される。弾性部材１５としての各３本のゴム糸
１５Ａは、各スロワトロ５に通されるので、前記タンク
から導入孔５６１分配孔５７゜噴出孔５９．凹条溝５８
を経て各スロワトロ５から噴出するホットメルト型接着
剤を塗布される。The third member 55 has a slotted slot 2 at the negative end thereof at the same interval as the slotted slotted slot 0. The first member 53, the second member 54, and the third member 55 have screw holes 63
The nozzle 42 is integrally connected by passing a screw 64 through the nozzle 42.
is formed. The nozzle 42 having such a structure has slits 60, 61, . Each of the 62 Slowatros 5 is arranged so as to face downward,
Although not shown, a tank is connected to the introduction hole 56 and is capable of regulating the supply, stoppage, and release of the hot melt adhesive. Three rubber threads 15A serving as the elastic members 15 are passed through each throat tube 5, so that they are passed through the tank through the introduction hole 561, distribution hole 57°, spout hole 59. Concave groove 58
After that, a hot melt adhesive is applied which is ejected from each slotted tube 5.
弾性部材１５に塗布されない余剰のホットメルト型接着
剤は、図示していないが、ノズル体４２の下方に配置さ
れたタンクに回収される。Although not shown, the excess hot melt adhesive that is not applied to the elastic member 15 is collected in a tank disposed below the nozzle body 42.
前記ホットメルト型接着剤は、弾性部材１５にましい。The hot melt adhesive is preferably used for the elastic member 15.
本発明者等の実験により確認し得たところによれば、弾
性部材１５としては、既述し九ロンデ、クスゴム糸（株
）から商品名「口ンデ、クス・３ＳＲタイプ」として入
手可能な、天然デムから作られた１本の断面積が約０．
１８５ｍ２のゴム糸１５Ａが好ましいものの一つである
が、これを用いる場合、前記ホットメルト型接着剤の塗
布量は１本のゴム糸１５Ａ当り ０．１〜０．２１１／
ｍが好ＺＬ ＜、且つその塗布温度は１６５℃以下が好
ましい。この場合の塗布量が０．１９７ｍ以下であると
、弾性部材１５がおむつ１０のサイドフラップ１４に確
実に接着され得す、０．２１７ｍ以上になると、前記接
着剤がおむつ１００ト、！シート１２から滲出し、これ
が固化した時に着用者に不快感を与え、更には、コスト
高になる。前記塗布温度が１６５℃以上であると、ゴム
糸１５Ａが劣化し或は切断することがある。更にこの場
合のホットメルト型接着剤としては、例えば、温度１２
０℃、１５０℃に於てそれぞれ粘度が１２０，０００ｃ
ｐｓ 、 ２２，０００ ’ｃｐｓであって、我国に於
て商品名［カネ〆つＮＳＣＭＱ−９７５Ｊとして入手可
能なものが好ましいものの一つと判明した◇
各スロワトロ５の個数は、おむつ１０の各サイドフラッ
プ１４に並列に配置すべきコ９ム糸１５Ａの本数に応じ
て設けられる。又各スロ、トロ５の間隔は、おむつ１０
の各サイドフラップ１４に並列に配置すべきゴム糸１５
Ａの間隔を規制する機能を果す。According to what the inventors have been able to confirm through experiments, the elastic member 15 is available from Kusugomu Ito Co., Ltd. under the trade name "Kuchonde Kusu 3SR Type" as described above. , the cross-sectional area of one made from natural dem is approximately 0.
185 m2 of rubber thread 15A is one of the preferable ones, but when this is used, the amount of the hot melt adhesive applied is 0.1 to 0.211/per one rubber thread 15A.
It is preferable that m is ZL<, and the coating temperature is preferably 165°C or less. In this case, if the coating amount is 0.197 m or less, the elastic member 15 can be reliably adhered to the side flap 14 of the diaper 10, and if it is 0.217 m or more, the adhesive will be applied to the diaper 100 tons! When it oozes from the sheet 12 and solidifies, it causes discomfort to the wearer and further increases costs. If the coating temperature is 165° C. or higher, the rubber thread 15A may deteriorate or break. Furthermore, in this case, the hot melt adhesive may have a temperature of 12
Viscosity is 120,000c at 0℃ and 150℃ respectively.
ps, 22,000'cps and available in our country under the trade name [Kanejitsu NSCMQ-975J] is found to be one of the preferable ones. The number of comb threads 15A to be arranged in parallel with the comb threads 14 is determined according to the number of comb threads 15A. Also, the interval between each slot and Toro 5 is 10 diapers.
Rubber threads 15 to be arranged in parallel on each side flap 14 of
It functions to regulate the interval of A.
同、第５図乃至第７図に示しである装置による本発明方
法に於ては、所要本数のコ９ム糸１５Ａが互に並列に接
合して成る弾性部材１５が伸長されながらブロック１５
Ａ１．１５Ａｚに二等分され、次いでこれら二つのブロ
ック１５ Ａｔ ｐ １５ Ａｍが更に各１本のゴム糸
１５Ａに分離される態様の場合について述べたが、その
他、次に述べる態様の場合があり、これらも本発明方法
の範囲に含まれる。In the method of the present invention using the apparatus shown in FIGS. 5 to 7, the block 15 is stretched while the elastic member 15 is made up of a required number of 9-comb yarns 15A joined in parallel to each other.
Although the case has been described in which the rubber thread is divided into two equal parts A1.15Az and then these two blocks 15 At p 15 Am are further separated into one rubber thread 15A, there are other cases as described below. , these are also included within the scope of the method of the present invention.
（、） 所要本数のゴム糸１５Ａが互に並列に接合し
て成る弾性部材１５が伸長されながら各１本のコ９ム糸
１５Ａに分離される場合。(,) When an elastic member 15 made up of a required number of rubber threads 15A joined in parallel to each other is separated into one comb thread 15A while being stretched.
（ｂ） 所要本数のゴム糸１５Ａが互に並列に接合し
て成る弾性部材１５が伸長された後、二つのブロック１
５Ａ、、１５Ａ、に二等分され、次いでこれら二つのプ
ロ、り１５Ａｓ ｖ １５Ａｔが更に各１本のゴム糸１
５Ａに分離される場合。(b) After the elastic member 15 made up of the required number of rubber threads 15A joined in parallel to each other is stretched, the two blocks 1
5A, , 15A, and then these two pro 15As v 15At are further divided into 1 rubber thread 1 each.
When separated into 5A.
（ｃ） 所要本数のゴム糸１５Ａが並列に接合して成
る弾性部材１５が伸長された後、各１本のコ９ム糸１５
Ａに分離される場合。(c) After the elastic member 15 made up of the required number of rubber threads 15A joined in parallel is stretched, one comb thread 15 is
When separated into A.
前記（、）乃至（ｂ）の態様を実施するための装置は、
図示してないが、第５図乃至第７図に示しである装置を
参考にすれば、当業者には容易に設計され得よう。A device for carrying out the aspects (,) to (b) above includes:
Although not shown, one skilled in the art could easily design it by referring to the devices shown in FIGS. 5 through 7.
本発明方法によれば、前述の如く弾性部材１５として、
数本のコ９ム糸１５Ａが互に並列に仮接合したものが用
いられるから、前記供給機構部Ａ。According to the method of the present invention, as described above, as the elastic member 15,
Since several 9-comb yarns 15A are temporarily joined in parallel to each other, this is the supply mechanism section A.
ドラフト機構部Ｂに於ける処理過程に於て前記各ゴム糸
１５Ａが纏れ或は切断することがない。又弾性部材１５
は、ノズル４２の各スロット６５により、該部材の間隔
を規制されると共に該部材の局面に接着剤が直接塗布さ
れるから、おむつ１０の各サイドフラップ１４に安定的
に配置接着される。During the treatment process in the draft mechanism section B, the rubber threads 15A are not tangled or cut. Also, elastic member 15
The slots 65 of the nozzle 42 regulate the spacing between the members, and the adhesive is directly applied to the curved surfaces of the members, so that they are stably arranged and bonded to the side flaps 14 of the diaper 10.
従って又本発明方法によれば、弾性部材１５として数本
の非常に細いゴム糸１５Ａを用いるのにも拘わらず、−
これらをおむり１０に能率的に取付けることが可能であ
る。Therefore, according to the method of the present invention, although several very thin rubber threads 15A are used as the elastic member 15, -
These can be efficiently attached to the diaper 10.
実施例
大きさ３３０■×４５０簡、秤量３５＃／ｍ”を有しポ
リエステル繊維５０重量％とレイヨン繊維５０重量％と
から成るトップシートと、大きさ３３０ＩＩｌｌｌＩＸ
４５０ｍ、厚さ２５μを有するポリエチレンフィルムか
ら成るパックシートとの間に秤量４５０Ｊｉ’／ｍ”の
粉砕パルプから成る吸収体を介在させ、これらトップシ
ートと・ぐツクシートと吸収体とをホットメルト型接着
剤により接合し、前記吸収体の両性側縁から外方へ延出
して和会する前記両シートにより形成される各サイドフ
ラップ中に弾性部材を接着して第１図に示す如き型態を
有するおむつを作成した。この弾性部材は長さ１６０ｆ
ｉ、厚さ０．２−１幅２．２ ｍｍの天然ゴムで作られ
た３本のゴム糸（総合断面積１．３２ｍ２）から成シ、
これら３本のゴム糸をそれらの引張強力が１３０９にな
るように長さ４５０■まで伸長して互に９ｍの間隔で配
置した。又この弾性部材は、これに粘度２０．０００
ｃｐｓ／１６０℃、軟化点９７℃を有するホットメルト
型接着剤を温度１６０℃で各１本当シ０．２１１／。で
塗布して前記サイドフラップに接着した。Example: A top sheet having a size of 330 x 450 sheets and a basis weight of 35#/m'' and consisting of 50% by weight of polyester fibers and 50% by weight of rayon fibers, and a size of 330IIllllIX.
An absorbent body made of pulverized pulp with a weight of 450 Ji'/m was interposed between a pack sheet made of a polyethylene film having a length of 450 m and a thickness of 25 μ, and these top sheets, gum sheets, and absorbent bodies were bonded by hot-melt bonding. An elastic member is bonded to each side flap formed by the two sheets extending outward from both side edges of the absorbent body to form a union, thereby forming a structure as shown in FIG. 1. A diaper was created.This elastic member had a length of 160f.
i. Made of three rubber threads (total cross-sectional area 1.32 m2) made of natural rubber with a thickness of 0.2-1 and a width of 2.2 mm.
These three rubber threads were stretched to a length of 450 cm so that their tensile strength was 1309, and were arranged at a distance of 9 m from each other. Moreover, this elastic member has a viscosity of 20.000
cps/160℃ and a hot melt adhesive with a softening point of 97℃ at a temperature of 160℃. and adhered to the side flap.
一方、比較品として、前記おむつとは弾性部材の原人だ
けが異なるおむつを作成した。このおむつの弾性部材に
は長さ１９５ｍ、厚さ０．２ ｔｒａ 、幅６．６ｍの
１本のゴムテープ（総合断面積１．３２簡２）を使用し
引張強力が略１３０ｇになるように長さ４５０■まで伸
長して前記サイドフラップに接着した。On the other hand, as a comparative product, a diaper was prepared that differed from the diaper described above only in the original material of the elastic member. The elastic member of this diaper is a rubber tape with a length of 195 m, a thickness of 0.2 tra, and a width of 6.6 m (total cross-sectional area: 1.32 mm), and is lengthened so that the tensile strength is approximately 130 g. It was stretched to a length of 450 cm and adhered to the side flap.
前記本発明実施品と比較品とを体重５，５００〜１１．
０００９の幼児１００人に使用させ尿の漏れ〜圧迫マー
クの有無のテストをした処下記表に示す結果が得られた
。The product according to the present invention and the comparative product weighed between 5,500 and 11.
0009 was used on 100 infants and tested for urine leakage to presence of pressure marks, and the results shown in the table below were obtained.
又前述した処から明らかの如く、弾性部材の使用量に於
ても、同じ引張強力を得るのに、該弾性部材として本発
明実施品では元寸１６０ｍ＋のもので良いのに対して、
比較品で祉元寸１９５ｍｅのものを必要とした。従って
、前者が後者に比較して経済的に有利である。Also, as is clear from the above, in terms of the amount of elastic members used, in order to obtain the same tensile strength, the elastic member used in the product implementing the present invention may have an original size of 160 m+.
I needed a comparative product with an original size of 195 meters. Therefore, the former is economically advantageous compared to the latter.
第１図は、本発明の実施態様に係る使い捨ておむつの一
部を切欠して示す展開平面図である。
第２図は、第１図に示すおむつの中央横断面図である◇
第３図囚及び（至））は、本発明に用いられる他の断面
形を有する弾性部材の部分斜視図である。
第４図は、本発明方法を実施する場合に用いられる弾性
部材の一例を示す部分斜視図である。
第５図は、本発明に於ける使い捨ておむつを製造するた
めの装置の一部を示す概略側面図である。
第６図は、第５図に示す装置中の弾性部材の分割機構部
を示す平面図である０
第７図は、弾性部材をおむつに堆付けるだめの機構部を
示す概略斜視図である。
第８図は、弾性部材に接着剤を塗布するためのノズルの
一例を示す斜視図である。
第９図は、第８図に示すノズルの分解斜視図である。
第１０図は、第８図に示すノズルの中央横＠面図である
。
第１１図及び第１２図は、弾性部材として、１本のゴム
テープが用いられた場合と、それが数本に分割されたも
のとが用いられた場合との特性を示すグラフである。
１０・・・おむつ、′１１・・・トップシート、１２・
・・パックシート、１３・・・吸収体、１４・・・サイ
ドフラップ、１５・・・弾性部材、１５Ａ・・・ゴム糸
、１５Ａｌ。
１５Ａ２・・・ブロック、２０・・・接合目、Ａ・・・
供給機構部、Ｂ・・・ドラフト機構部、Ｃ・・・分離機
構部、Ｅ・・・適用機構部、４２・・・ノズル、６４・
・・スロット。
第
図
第
図
＝頷ボＦ 、９FIG. 1 is a partially cutaway exploded plan view of a disposable diaper according to an embodiment of the present invention. FIG. 2 is a central cross-sectional view of the diaper shown in FIG. 1. ◇ FIG. 3 is a partial perspective view of an elastic member having another cross-sectional shape used in the present invention. FIG. 4 is a partial perspective view showing an example of an elastic member used when carrying out the method of the present invention. FIG. 5 is a schematic side view showing a part of the apparatus for manufacturing the disposable diaper according to the present invention. FIG. 6 is a plan view showing a dividing mechanism for the elastic member in the apparatus shown in FIG. 5. FIG. 7 is a schematic perspective view showing a mechanism for attaching the elastic member to the diaper. FIG. 8 is a perspective view showing an example of a nozzle for applying adhesive to an elastic member. FIG. 9 is an exploded perspective view of the nozzle shown in FIG. 8. FIG. 10 is a central side view of the nozzle shown in FIG. 8. FIGS. 11 and 12 are graphs showing the characteristics when a single rubber tape is used as the elastic member and when it is divided into several pieces. 10... Diaper, '11... Top sheet, 12.
...Pack sheet, 13...Absorber, 14...Side flap, 15...Elastic member, 15A...Rubber thread, 15Al. 15A2...Block, 20...Joint, A...
Supply mechanism section, B... Draft mechanism section, C... Separation mechanism section, E... Application mechanism section, 42... Nozzle, 64.
··slot. Figure Figure = Nod Bo F, 9
Claims (7)
介在結合された吸収体と、該吸収体の外側縁から外方に
延出して相会する該両シートにより形成される各サイド
フラップ中の長手方向に伸縮線を作り謀各サイドフラッ
プを幼児の脚囲りに密接するための弾性部材とを備える
使い捨ておむつの該弾性部材が取付けられるに際して、
該弾性部材として、６本乃至９０本のゴム糸が互に並列
に接合し、これらゴム糸の各１本の断面積が０．０３ｍ
ｍ＾２乃至０．４５ｍｍ＾２、総合断面積が０．１８ｍ
ｍ＾２乃至２．７ｍｍ＾２であるテープ状形態を有する
ものが供給されて伸長率１００％乃至４００％で伸長さ
れると共に、これらゴム糸がこれらゴム糸の接合線上で
互に分離され、且つこれらゴム糸の中の３本乃至４５本
づつのゴム糸が前記各サイドフラップとなるべき部位に
適宜間隔を保たせられながらそれぞれ供給され、而も該
供給過程に於て接着剤を塗布されて、該各部位に並列に
接着されることを特徴とする使い捨ておむつの弾性部材
の取付方法。(1) Inside each side flap formed by a top sheet, a pack sheet, an absorbent body interposed between the sheets, and both sheets extending outward from the outer edge of the absorbent body and meeting each other. When the elastic member of the disposable diaper is attached, the disposable diaper is provided with an elastic member that creates an elastic line in the longitudinal direction and brings each side flap into close contact with the infant's leg circumference.
As the elastic member, 6 to 90 rubber threads are connected in parallel to each other, and each of these rubber threads has a cross-sectional area of 0.03 m.
m^2 to 0.45mm^2, total cross-sectional area 0.18m
A tape-shaped material having a diameter of m^2 to 2.7 mm^2 is supplied and stretched at an elongation rate of 100% to 400%, and these rubber threads are separated from each other on the joining line of these rubber threads, In addition, 3 to 45 rubber threads among these rubber threads are supplied to each of the portions that are to become the side flaps while being kept at appropriate intervals, and an adhesive is applied during the supply process. A method for attaching an elastic member of a disposable diaper, characterized in that the elastic member is adhered to each part in parallel.
る弾性部材が伸長されながら３本乃至４５本づつの二つ
のブロックに分離され、次いでこれら二つのブロックが
更に各１本のゴム糸に分離される特許請求の範囲第１項
記載の使い捨ておむつの弾性部材の取付方法。(2) An elastic member made of 6 to 90 rubber threads joined in parallel is separated into two blocks of 3 to 45 rubber threads each while being stretched, and then these two blocks are further divided into two blocks of 3 to 45 threads each. A method for attaching an elastic member of a disposable diaper according to claim 1, wherein the elastic member is separated into rubber threads.
る弾性部材が伸長されながら各１本のゴム糸に分離され
る特許請求の範囲第１項記載の使い捨ておむつの弾性部
材の取付方法。(3) The elastic member of the disposable diaper according to claim 1, wherein the elastic member is formed by connecting 6 to 90 rubber threads in parallel and is separated into each rubber thread while being stretched. How to install.
る弾性部材が伸長された後、３本乃至４５本づつの二つ
のブロックに分離され、次いでこれら二つのブロックが
更に各１本のゴム糸に分離される特許請求の範囲第１項
記載の使い捨ておむつの弾性部材の取付方法。(4) After the elastic member made of 6 to 90 rubber threads joined in parallel is stretched, it is separated into two blocks each having 3 to 45 rubber threads, and then these two blocks are further divided into each block. A method for attaching an elastic member of a disposable diaper according to claim 1, wherein the elastic member is separated into one rubber thread.
る弾性部材が伸長された後、各１本のゴム糸に分離され
る特許請求の範囲第１項記載の使い捨ておむつの弾性部
材の取付方法。(5) A disposable diaper according to claim 1, wherein an elastic member made of 6 to 90 rubber threads joined in parallel is separated into one rubber thread after being stretched. How to install elastic members.
塗布するためのノズルのスロット間隔により、それらゴ
ム糸をおむつに接着すべき間隔を保たせられる特許請求
の範囲第２項記載の使い捨ておむつの弾性部材の取付方
法。(6) Claim 2, in which the separated rubber threads are maintained at a distance at which they should be bonded to the diaper by the slot spacing of a nozzle for applying adhesive to the rubber threads. A method for attaching the elastic member of the disposable diaper described above.
のゴム糸が潜在的に分離能力を有する疑似接合によりテ
ープ状形態を維持していて、僅かな引裂力により各１本
に整然と分離され得るものが用いられる特許請求の範囲
第１項記載の使い捨ておむつの弾性部材の取付方法。(7) As an elastic member, the 6 to 90 rubber threads that form it maintain a tape-like form through pseudo-bonding that has the potential to separate, and can be separated into individual threads in an orderly manner with a slight tearing force. 2. A method for attaching an elastic member of a disposable diaper according to claim 1, wherein a method for attaching an elastic member to a disposable diaper is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202627A JPH02189148A (en) | 1989-08-04 | 1989-08-04 | Mounting method for resilient member for disposal diaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1202627A JPH02189148A (en) | 1989-08-04 | 1989-08-04 | Mounting method for resilient member for disposal diaper |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57061946A Division JPS58180601A (en) | 1982-04-14 | 1982-04-14 | Disposable diaper and attachment of elastic member thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02189148A true JPH02189148A (en) | 1990-07-25 |
| JPH0474022B2 JPH0474022B2 (en) | 1992-11-25 |
Family
ID=16460486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1202627A Granted JPH02189148A (en) | 1989-08-04 | 1989-08-04 | Mounting method for resilient member for disposal diaper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02189148A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008188853A (en) * | 2007-02-05 | 2008-08-21 | Etsumi Kobayashi | Laminated sheet |
| WO2010038777A1 (en) * | 2008-09-30 | 2010-04-08 | ユニ・チャーム株式会社 | Method for producing absorptive article |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2323132A (en) * | 1940-10-17 | 1943-06-29 | Us Rubber Co | Method of manufacturing rubber thread |
| US2678676A (en) * | 1951-07-06 | 1954-05-18 | Us Rubber Co | Apparatus for forming ribbons composed of extruded rubber threads |
| GB2023431A (en) * | 1978-04-03 | 1980-01-03 | Johnson & Johnson | Diaper with contoured panel and contoured elastic means |
| JPS5679701A (en) * | 1979-11-15 | 1981-06-30 | Kimberly Clark Co | Conformity garment suitable as disposable diaper * method and apparatus for making same |
-
1989
- 1989-08-04 JP JP1202627A patent/JPH02189148A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2323132A (en) * | 1940-10-17 | 1943-06-29 | Us Rubber Co | Method of manufacturing rubber thread |
| US2678676A (en) * | 1951-07-06 | 1954-05-18 | Us Rubber Co | Apparatus for forming ribbons composed of extruded rubber threads |
| GB2023431A (en) * | 1978-04-03 | 1980-01-03 | Johnson & Johnson | Diaper with contoured panel and contoured elastic means |
| JPS5679701A (en) * | 1979-11-15 | 1981-06-30 | Kimberly Clark Co | Conformity garment suitable as disposable diaper * method and apparatus for making same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008188853A (en) * | 2007-02-05 | 2008-08-21 | Etsumi Kobayashi | Laminated sheet |
| JP4528791B2 (en) * | 2007-02-05 | 2010-08-18 | 悦美 小林 | Laminated sheet |
| WO2010038777A1 (en) * | 2008-09-30 | 2010-04-08 | ユニ・チャーム株式会社 | Method for producing absorptive article |
| JP5432913B2 (en) * | 2008-09-30 | 2014-03-05 | ユニ・チャーム株式会社 | Method for manufacturing absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0474022B2 (en) | 1992-11-25 |
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