JPS6339416B2 - - Google Patents
Info
- Publication number
- JPS6339416B2 JPS6339416B2 JP58196586A JP19658683A JPS6339416B2 JP S6339416 B2 JPS6339416 B2 JP S6339416B2 JP 58196586 A JP58196586 A JP 58196586A JP 19658683 A JP19658683 A JP 19658683A JP S6339416 B2 JPS6339416 B2 JP S6339416B2
- Authority
- JP
- Japan
- Prior art keywords
- elastic band
- adhesive
- continuous
- composite member
- support tape
- 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.)
- Expired
Links
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 4
- 239000002250 absorbent Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、使い捨ておむつ・使い捨ておむつカ
バー等の衛生物品に使用するのに好適な弾性バン
ドを該物品に連続的に取付ける方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for continuously attaching an elastic band to sanitary articles such as disposable diapers and disposable diaper covers.
従来、使い捨て吸収性物品に断性部材を連続的
に取付ける方法として、例えば、特公昭57−
26219号公報に開示され技術が知られ実施されて
いる。この公知方法の基本的思想は、連続断性部
材を伸長下にこれに接着剤を間欠的に塗布して連
続物品を構成する連続ウエブに接着し、連続弾性
部材を接着剤が硬化した状態で接着剤非塗布区域
で切断して該非塗布区域を収縮させることにより
所定長さの弾性部材を連続ウエブに間欠的に接着
することにある。然るに、実際上の物品、例え
ば、使い捨ておむつの場合には、表裏面連続ウエ
ブ間に前記連続弾性部材を接着して前記接着剤非
塗布部を両連続ウエブと共に切断することになる
が、切断された該非塗布区域を前述の如く収縮さ
せるので、切断された個々のおむつの両ウエブ間
には該非塗布区域の収縮の為の開口部を設ける必
要があり、換言すれば、個々のおむつの長さ方向
端を密閉することが出来ない。従つて、該開口部
から尿が漏れる欠点がある。 Conventionally, as a method for continuously attaching breakable members to disposable absorbent articles, for example,
The technology disclosed in Japanese Patent No. 26219 is known and practiced. The basic idea of this known method is that an adhesive is intermittently applied to a continuous breakable member while it is being stretched to adhere it to a continuous web constituting a continuous article, and a continuous elastic member is attached to a continuous elastic member in a state where the adhesive has hardened. The purpose of this method is to intermittently bond a predetermined length of elastic member to a continuous web by cutting at a non-adhesive area and contracting the non-adhesive area. However, in the case of a practical article, for example, a disposable diaper, the continuous elastic member is glued between the front and back continuous webs, and the non-adhesive part is cut together with both continuous webs. In order to shrink the non-applied area as described above, it is necessary to provide an opening between both webs of each cut diaper for the non-applied area to shrink.In other words, the length of each diaper is It is not possible to seal the end of the direction. Therefore, there is a drawback that urine leaks from the opening.
一方、一般に前記公知方法を含む弾性部材を有
する使い捨ておむつにおいて細い糸状ゴムを使用
する場合には、おむつの工程中における該弾性部
材の高速処理上、延いてはおむつの高速生産上問
題が多い。 On the other hand, when thin rubber threads are used in a disposable diaper having an elastic member using the above-mentioned known method, there are many problems in terms of high-speed processing of the elastic member during the diaper manufacturing process, and furthermore, in terms of high-speed production of the diaper.
本発明の目的は、前述の如き諸欠点を解消する
ことが可能である、弾性バンドを衛生物品に連続
的に取付ける方法を提供することにある。 The object of the present invention is to provide a method for continuously attaching elastic bands to sanitary articles, which makes it possible to overcome the above-mentioned disadvantages.
本発明の実施態様を図示例を参照して説明する
と、以下の通りである。 Embodiments of the present invention will be described below with reference to illustrated examples.
第１図、第２図において、連続弾性バンド１が
ボツクス２からガイドリング３、ガイドロール
４，４を経てドラフトロール５，５、６，６へ移
送される。ドラフトロール６，６は、同ロール
５，５よりも所定周速が高くされており、その為
弾性バンド１は所定倍率で伸長される。本発明の
好ましい実施態様においては、弾性バンド１とし
ては、第３図に示す如く、断面積が0.03〜0.6mm2
の複数本の糸状ゴム1aが僅かの引裂力で容易に
分離可能に並列に仮接合（融着）してテープ状型
態を維持しているものが使用される。漸かる弾性
バンド１はガイドロール７を経て分離手段８へ移
送される。分離手段８は、複数本から成る糸状ゴ
ム1aが僅かの引裂力で容易に分離可能であるこ
とから、各糸状ゴム1aを予め手で分離してこれ
等間に杆状物を介在させるものであつてもよい。
因みに、斯かる弾性バンド１は、通常その表面に
タルク粉末が付着しているので、図示してない
が、その工程中で除去される。 1 and 2, a continuous elastic band 1 is transferred from a box 2 to draft rolls 5, 5, 6, 6 via a guide ring 3, guide rolls 4, 4. The draft rolls 6, 6 have a predetermined peripheral speed higher than the rolls 5, 5, and therefore the elastic band 1 is stretched at a predetermined magnification. In a preferred embodiment of the present invention, the elastic band 1 has a cross-sectional area of 0.03 to 0.6 mm 2 as shown in FIG.
A plurality of rubber threads 1a are temporarily joined (fused) in parallel in such a way that they can be easily separated with a slight tearing force to maintain a tape-like shape. The loose elastic band 1 is transferred to a separating means 8 via a guide roll 7. Since the thread-like rubber 1a consisting of a plurality of thread-like rubber pieces 1a can be easily separated with a slight tearing force, the separating means 8 separates each thread-like rubber piece 1a by hand in advance and interposes a rod-like object between them. It's okay to be hot.
Incidentally, such elastic band 1 usually has talc powder attached to its surface, so it is removed during the process, although not shown.
斯かる処理をなされた弾性バンド１は、ガイド
ロール９の条溝１０により間隔を規制されて接合
ステーシヨンとしてのロール１１へ移送され、そ
の間において塗布手段１２により該弾性バンドの
長さ方向に間欠的にホツトメルト型等の接着剤１
３を塗布される。一方、前記ロール１１へは、プ
ラスチツクフイルム・不織布等から成り、弾性バ
ンド１の所定収縮力を妨げない可撓性と実質的に
非弾性とを有し且つ弾性バンド１よりも若干広幅
を有する連続支持テープ１４がこれに引裂力が作
用しない軽い緊張下に移送される。従つて、ロー
ル１１上で弾性バンド１が接着剤１３で支持テー
プ１４に一体的に接着される。 The elastic band 1 that has been treated in this way is transferred to a roll 11 as a joining station with the spacing regulated by the grooves 10 of the guide roll 9, and in the meantime, the elastic band is intermittently coated in the length direction by the coating means 12. Hot melt type adhesive 1
3 is applied. On the other hand, the roll 11 is made of plastic film, non-woven fabric, etc., has flexibility that does not interfere with the predetermined contraction force of the elastic band 1, is substantially inelastic, and has a width slightly wider than that of the elastic band 1. The support tape 14 is transferred under light tension, with no tearing forces acting on it. Thus, on the roll 11 the elastic band 1 is integrally glued to the support tape 14 with the adhesive 13.
斯くて支持テープ１４に接着された弾性バンド
１は、接着剤非塗布区域１５においてカツター１
６により切断され、該非塗布区域が収縮する（第
４図参照）ので、支持テープ１４に間欠的に配置
されることになる。斯くて切断された弾性バンド
１と連続支持テープ１４とから構成されたテープ
状連続複合部材１７は、弾性バンド１を内側にし
て巻取ロール１８に巻取られる。 In this way, the elastic band 1 adhered to the support tape 14 is attached to the cutter 1 in the non-adhesive area 15.
6 and the uncoated area shrinks (see FIG. 4), so that it is placed intermittently on the support tape 14. The tape-shaped continuous composite member 17 composed of the thus cut elastic band 1 and the continuous support tape 14 is wound onto a take-up roll 18 with the elastic band 1 inside.
連続複合部材１７を巻取ロール１８に巻取る
際、弾性バンド１と支持テープ１４とを一体化す
る接着剤１３と対向接触する該支持テープ面とが
一体的に接着し、使用時に巻戻し難い虞れがある
場合には、これを防止する為、一般的には、接着
剤１３を強制又は自然冷却する方法が採られる
が、前記対向接触する支持テープ１４面、即ち弾
性バンド１の接触面と反対面に水を塗布して水膜
を付与しても同様の効果が得られる。 When the continuous composite member 17 is wound onto the take-up roll 18, the adhesive 13 that integrates the elastic band 1 and the support tape 14 and the surface of the support tape that is in opposing contact are bonded together, making it difficult to unwind during use. If there is a risk, in order to prevent this, a method is generally adopted in which the adhesive 13 is forcedly or naturally cooled. A similar effect can be obtained by applying water to the opposite side to form a water film.
前記カツター１６は、超音波によるものが好ま
しく、これによる場合には、弾性バンド１（これ
が各糸状ゴム1aから成る場合には該各糸状ゴム）
と略同幅の出力端を該バンドの走行路に臨ませて
配置される。超音波カツターにより超音波作用を
受けると、弾性バンド１と支持テープ１４とは軟
化される。従つて、伸長状態にある弾性バンド１
はその収縮力が軟化点に集中して切断される一
方、支持テープ１４は前述の如き軽い緊張状態で
あることに加え、軟化はしても、それは、該テー
プの極く一部であり、緊張力が該軟化点に集中す
ることがないので軟化状態のまま保たれ、超音波
カツターの作動が停止された後の移送中に冷却硬
化される。 The cutter 16 is preferably formed using ultrasonic waves, and in this case, the elastic band 1 (or each thread-like rubber when it is made of each thread-like rubber 1a)
The band is disposed with its output end having approximately the same width facing the running path of the band. When subjected to ultrasonic action by an ultrasonic cutter, the elastic band 1 and the support tape 14 are softened. Therefore, the elastic band 1 in the stretched state
is cut by concentrating its contractile force at the softening point, while the support tape 14 is under slight tension as described above, and even if it softens, it is only a small part of the tape, Since the tension force is not concentrated at the softening point, it remains in a softened state and is cooled and hardened during transport after the operation of the ultrasonic cutter is stopped.
弾性バンド１として実施態様の糸状ゴム1aの
如き細いものを使用する場合には、第５図に示す
如く、その全外周が接着剤１３で被覆されるよう
に該接着剤が塗布されても良い。而して、接着剤
１３は、弾性バンド１に直接塗布することが好ま
しいが、これに替えて支持テープ１４に塗布手段
１９により塗布されても良い。 When using a thin elastic band 1 such as the thread-like rubber 1a of the embodiment, the adhesive 13 may be applied so that the entire outer periphery of the elastic band 1 is covered with the adhesive 13, as shown in FIG. . Although it is preferable to apply the adhesive 13 directly to the elastic band 1, the adhesive 13 may alternatively be applied to the support tape 14 by the application means 19.
第６図においては、前記複合部材１７を使用し
て衛生物品としての一例を示す使い捨ておむつを
組立てる工程の概略図を示してある。複合部材１
７は、その巻取ロール１８から前記弾性バンド１
を下面に向けて巻戻され、好ましくは前記弾性バ
ンド１上に沿つて塗布手段２０により接着剤を塗
布されてニツプロール２１，２２へ移送される。
ニツプロール２１，２２へは、プラスチツクフイ
ルム等から成る連続裏面シート２３が塗布手段２
４によりその所定部位に接着剤を塗布されて移送
され、該裏面シートの所定部位に複合部材１７が
供給されて一体的に接着される。複合部材１７を
裏面シート２３に接着する為の接着剤は該裏面シ
ートに塗布されても良い。 FIG. 6 shows a schematic diagram of the process of assembling a disposable diaper, which is an example of a sanitary article, using the composite member 17. Composite member 1
7 is the elastic band 1 from the winding roll 18.
is rewound downward, preferably coated with adhesive by coating means 20 along the elastic band 1, and transferred to nip rolls 21, 22.
A continuous back sheet 23 made of plastic film or the like is applied to the coating means 2 on the Nipro rolls 21 and 22.
4, the composite member 17 is applied to a predetermined portion of the back sheet and transported, and the composite member 17 is supplied to a predetermined portion of the back sheet and bonded together. An adhesive for bonding composite member 17 to backsheet 23 may be applied to the backsheet.
斯くて複合部材１７が接着された裏面シート２
３はニツプロール２５，２６を備える組立てステ
ーシヨンＳへ導かれる。一方、ステーシヨンＳへ
は、不織布等から成る連続表面シート２７が塗布
手段２８によりその所定部位に接着剤を塗布され
て移送され、且つ予め所定長さに切断された解繊
パルプ等から成る個々の吸収パネル２９が前後方
向に所定間隔で裏面シート２３に接着された複合
部材１７と関係位置が整合されるように移送され
る（第７図参照）。従つて、前記各部材１７，２
３，２７，２９が一体的に積層されることによつ
て連続おむつ３０が構成される。 In this way, the back sheet 2 to which the composite member 17 is adhered
3 is led to an assembly station S equipped with nip rolls 25,26. On the other hand, a continuous surface sheet 27 made of a non-woven fabric or the like is coated with an adhesive at predetermined portions thereof by a coating means 28 and then transferred to the station S. The absorbent panels 29 are transported so that they are aligned with the composite member 17 bonded to the back sheet 23 at predetermined intervals in the front-rear direction (see FIG. 7). Therefore, each member 17, 2
3, 27, and 29 are integrally laminated to form a continuous diaper 30.
斯くて構成された連続おむつ３０は、各吸収パ
ネル２９の前後方向の対向端間、即ち第７図に示
す鎖線位置で切断され、これによつて個々のおむ
つが形成される。 The continuous diaper 30 thus constructed is cut between the opposing ends of each absorbent panel 29 in the front-rear direction, ie, at the chain line position shown in FIG. 7, thereby forming individual diapers.
本発明方法によれば、使い捨ておむつ等の衛生
物品に使用するテープ状連続複合部材１７を極め
て容易に製造することが出来ると共に、該複合部
材は支持テープ１４に弾性バンド１が所定間隔で
配置されて成るものである為、前記物品に使用す
ることができる。 According to the method of the present invention, the tape-shaped continuous composite member 17 used for sanitary products such as disposable diapers can be manufactured very easily, and the composite member has elastic bands 1 arranged at predetermined intervals on the support tape 14. It can be used for the above-mentioned articles.
前記物品の製造に際しては、予めロール巻きし
て準備した前記複合部材１７を巻戻して前記物品
の構成ウエブに連続的に供給して接着するだけで
前記物品に組込むことが出来る為、製造工程及び
装置を簡略且つ小型化することが可能になると共
に、前記物品を高速生産することが可能になる。
斯くて得られた前記物品は、その連続状態からの
切断端を密閉することが出来る為、該切断端から
尿が漏れることがない。 When manufacturing the article, the composite member 17 prepared in advance by roll winding can be unwound, continuously supplied to the component web of the article, and incorporated into the article by bonding, so that the manufacturing process and It becomes possible to simplify and downsize the apparatus, and also to produce the article at high speed.
Since the thus obtained article can be sealed at the cut end from its continuous state, urine will not leak from the cut end.
従つて、既述した公知方法が有する欠点を解消
し所期の目的を達成することが出来、特に使い捨
ておむつに使用する弾性バンドを該おむつに取付
ける方法として極めて有益である。 Therefore, the disadvantages of the known methods mentioned above can be overcome and the intended purpose can be achieved, and this method is particularly useful as a method for attaching elastic bands to disposable diapers.
第１図は本発明複合部材を製造する工程の概略
側面図、第２図は第１図Ａ区域の平面図、第３図
は前記複合部材を構成する弾性バンドの一例を示
す部分斜視図、第４図は製造した前記複合部材の
部分平面図、第５図は前記複合部材の幅方向断面
図、第６図は前記複合部材を使用して使い捨てお
むつを製造する工程の概略側面図、第７図は前記
おむつの破断部分平面図である。
１……弾性バンド、５，６……ドラフトロー
ル、１２……塗布手段、１３……接着剤、１４…
…支持テープ、１５……接着剤非塗布部、１６…
…カツター、１７……複合部材、２０……塗布手
段、２３……裏面シート、２７……表面シート、
２９……吸収パネル、３０……連続おむつ。
FIG. 1 is a schematic side view of the process of manufacturing the composite member of the present invention, FIG. 2 is a plan view of area A in FIG. 1, and FIG. 3 is a partial perspective view showing an example of an elastic band constituting the composite member. FIG. 4 is a partial plan view of the manufactured composite member, FIG. 5 is a cross-sectional view of the composite member in the width direction, FIG. 6 is a schematic side view of the process of manufacturing a disposable diaper using the composite member, and FIG. FIG. 7 is a partially cut away plan view of the diaper. DESCRIPTION OF SYMBOLS 1...Elastic band, 5, 6...Draft roll, 12...Applying means, 13...Adhesive, 14...
...Supporting tape, 15...Adhesive-unapplied area, 16...
... Cutter, 17 ... Composite member, 20 ... Application means, 23 ... Back sheet, 27 ... Top sheet,
29...absorbent panel, 30...continuous diaper.
Claims (1)
質的に非弾性を有する連続支持テープの何れか一
方の長さ方向に接着剤を間欠的に塗布し、該接着
剤で該弾性バンドを該支持テープに一体的に接着
し、該弾性バンドの接着剤非塗布区域を切断して
該非塗布区域を収縮させることにより該支持テー
プに該弾性バンドを間欠的に配置したテープ状連
続複合部材を構成し、該複合部材を連続ウエブの
所定部位に供給し、該複合部材と該ウエブの何れ
か一方に接着剤を塗布し、該接着剤で該複合部材
を該ウエブに一体的に接着し、該ウエブを前記切
断された弾性バンドの接着剤非塗布区域間で前記
連続支持テープと共に切断することを特徴とする
弾性バンドを衛生物品に取付ける方法。 ２ 連続弾性バンドとして一本の断面積が0.03〜
0.6mm2である複数本の糸状ゴムを用い、該糸状ゴ
ムを連続支持テープの幅方向に所定間隔で該支持
テープに並列配置する特許請求の範囲第１項記載
の方法。 ３ 連続断性バンドの接着剤非塗布区域の切断を
超音波カツターによりなす特許請求の範囲第１項
記載の方法。[Claims] 1. A continuous elastic band is stretched, an adhesive is intermittently applied in the length direction of either the elastic band or a substantially inelastic continuous support tape, and the adhesive A tape-like structure in which the elastic band is integrally adhered to the support tape, and the elastic band is intermittently arranged on the support tape by cutting the non-adhesive area of the elastic band and shrinking the non-adhesive area. A continuous composite member is constructed, the composite member is supplied to a predetermined portion of the continuous web, an adhesive is applied to either the composite member or the web, and the composite member is integrally attached to the web with the adhesive. 1. A method of attaching an elastic band to a sanitary article, the web being cut with the continuous support tape between non-adhesive areas of the cut elastic band. 2 The cross-sectional area of one continuous elastic band is 0.03~
2. The method according to claim 1, wherein a plurality of thread-like rubber having a diameter of 0.6 mm 2 are used and the thread-like rubber is arranged in parallel on the support tape at predetermined intervals in the width direction of the continuous support tape. 3. The method according to claim 1, wherein the adhesive-free area of the continuous breakable band is cut using an ultrasonic cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196586A JPS6087040A (en) | 1983-10-20 | 1983-10-20 | Preparation of elastic member and manufacture of medical item with said member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58196586A JPS6087040A (en) | 1983-10-20 | 1983-10-20 | Preparation of elastic member and manufacture of medical item with said member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6087040A JPS6087040A (en) | 1985-05-16 |
| JPS6339416B2 true JPS6339416B2 (en) | 1988-08-04 |
Family
ID=16360197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58196586A Granted JPS6087040A (en) | 1983-10-20 | 1983-10-20 | Preparation of elastic member and manufacture of medical item with said member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087040A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751143B2 (en) * | 1988-04-19 | 1995-06-05 | 株式会社瑞光 | How to make and attach elastic tape |
| US5660657A (en) * | 1995-01-31 | 1997-08-26 | Kimberly-Clark Worldwide, Inc. | Composite method for fabricating garments |
| JP3873894B2 (en) * | 2003-01-30 | 2007-01-31 | 王子製紙株式会社 | Method for manufacturing elastic elastic member |
| JP4526407B2 (en) * | 2005-02-10 | 2010-08-18 | 株式会社リブドゥコーポレーション | Absorbent article and method for manufacturing absorbent article |
| ITTO20080325A1 (en) * | 2008-04-30 | 2008-07-30 | Fameccanica Data Spa | "EXTENSIBLE LAMINAR MATERIAL, IN PARTICULAR FOR HYGIENE-SANITARY ARTICLES, AND RELATIVE PROCESS OF PROCESSING" |
| JP6965519B2 (en) * | 2017-01-17 | 2021-11-10 | 王子ホールディングス株式会社 | Manufacturing method of sheet complex and absorbent article |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726219A (en) * | 1980-07-25 | 1982-02-12 | Mazda Motor Corp | Exhaust gas purifier for engine |
-
1983
- 1983-10-20 JP JP58196586A patent/JPS6087040A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5726219A (en) * | 1980-07-25 | 1982-02-12 | Mazda Motor Corp | Exhaust gas purifier for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6087040A (en) | 1985-05-16 |
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