JPH05140520A - Production of double-coated tacky tape - Google Patents
Production of double-coated tacky tapeInfo
- Publication number
- JPH05140520A JPH05140520A JP30473491A JP30473491A JPH05140520A JP H05140520 A JPH05140520 A JP H05140520A JP 30473491 A JP30473491 A JP 30473491A JP 30473491 A JP30473491 A JP 30473491A JP H05140520 A JPH05140520 A JP H05140520A
- Authority
- JP
- Japan
- Prior art keywords
- sensitive adhesive
- pressure
- double
- substrate
- base material
- 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
Landscapes
- Adhesive Tapes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、麻を主成分とする不
織布を基材とする両面粘着テープの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a double-sided pressure-sensitive adhesive tape having a nonwoven fabric containing hemp as a main component as a base material.
【０００２】[0002]
【従来の技術】麻を主成分とする不織布は、打抜加工性
がよく、引張強度もあるので両面粘着テープの基材とし
て使用されている。2. Description of the Related Art Nonwoven fabrics whose main component is hemp are used as a base material for double-sided pressure-sensitive adhesive tapes because they have good punching workability and tensile strength.
【０００３】例えば、実開平３−１１０４０号公報に
は、マニラ麻を短麻方式により抄紙したものを基材とし
た両面粘着テープが提案されている。このような両面粘
着テープは、工程紙に予め粘着剤を塗工しこれを、基材
の片面に張り合わせ粘着剤を転写する方法が採用される
ことが多く、また、一般に両面粘着テープはその片面の
粘着剤層面に離型紙を添え、その離型紙を外側にして紙
芯に巻き付けられた巻重体として保管されたり運搬され
たりして使用に供されている。For example, Japanese Utility Model Laid-Open No. 311040 proposes a double-sided pressure-sensitive adhesive tape whose base material is a paper made from Manila hemp. For such a double-sided adhesive tape, a method of applying an adhesive on a process paper in advance and then laminating the adhesive on one side of a substrate and transferring the adhesive is often adopted. The release paper is attached to the surface of the pressure-sensitive adhesive layer, and the release paper is used as a roll wound around a paper core with the release paper as the outside.
【０００４】[0004]
【発明が解決しようとする課題】ところが、麻を主成分
とする不織布は、レーヨン不織布やパルプ不織布に較べ
て柔軟性に欠けているため、この不織布を基材とする両
面粘着テープは、上記のとおり紙芯に巻いて巻重体とし
たとき、基材の内側の粘着剤層側にしわが発生し易く、
そのしわ部分の存在は外観的にも品質的にも問題となっ
ていた。However, since the non-woven fabric containing hemp as the main component is less flexible than the rayon non-woven fabric and the pulp non-woven fabric, the double-sided adhesive tape based on this non-woven fabric is As described above, when wound around a paper core to form a rolled body, wrinkles easily occur on the pressure-sensitive adhesive layer side of the base material,
The presence of the wrinkled portion was a problem in terms of appearance and quality.
【０００５】この発明は、麻を主成分とする不織布を基
材とする両面粘着テープを巻重体とした場合、上記のよ
うなしわが発生することがない両面粘着テープの製造方
法を提供することを目的とする。The present invention provides a method for producing a double-sided pressure-sensitive adhesive tape which does not cause wrinkles as described above when a double-sided pressure-sensitive adhesive tape having a nonwoven fabric containing hemp as a main component is used as a roll. To aim.
【０００６】[0006]
【課題を解決するための手段】この発明の両面粘着テー
プの製造方法は、基材の一面に、粘着剤が塗工された離
型紙の粘着剤層を重ね合わせて転写する粘着剤転写第一
工程と、基材の他面に工程紙上の粘着剤層を転写する粘
着剤転写第二工程とからなる両面粘着テープの製造方法
であって、基材として麻を主成分とし、坪量が１８ｇ／
ｍ2 以下の不織布を使用し、粘着剤転写第一工程におい
て、この不織布に長尺方向の張力をかけて０．２０〜
０．５０％伸長させた状態で、離型紙の粘着剤層を転写
することを特徴とするものであって、このことにより上
記目的が達成される。The method for producing a double-sided pressure-sensitive adhesive tape according to the present invention is a pressure-sensitive adhesive transfer method in which a pressure-sensitive adhesive layer of release paper coated with a pressure-sensitive adhesive is superposed on one surface of a substrate and transferred. A double-sided pressure-sensitive adhesive tape manufacturing method comprising a step and a second step of transferring a pressure-sensitive adhesive layer on a step paper to the other surface of the base material, wherein the base material is hemp as a main component and the basis weight is 18 g. /
Using a non-woven fabric of m 2 or less, in the first step of pressure-sensitive adhesive transfer, 0.20 to 20
It is characterized in that the pressure-sensitive adhesive layer of the release paper is transferred in the state of being stretched by 0.50%, whereby the above object is achieved.
【０００７】上記不織布の伸長度は上記のとおり０．２
０〜０．５０％の範囲とされる。その理由は、０．２０
％未満であると、得られた両面粘着テープの巻重体にお
いて、内側の粘着剤層にしわが発生するのを十分に防ぐ
ことができず、０．５０％を超えると得られた両面粘着
テープにカールが発生し易いからである。The elongation of the nonwoven fabric is 0.2 as described above.
It is set to a range of 0 to 0.50%. The reason is 0.20
When it is less than 0.5%, it is not possible to sufficiently prevent wrinkles from being generated in the inner pressure-sensitive adhesive layer in the obtained double-sided pressure-sensitive adhesive tape roll, and when it exceeds 0.50%, the obtained double-sided pressure-sensitive adhesive tape is obtained. This is because curling is likely to occur.
【０００８】また、上記不織布において、その坪量は１
８／ｍ2 以下とされるが、１８ｇ／ｍ2 を超えるもので
あると、その不織布を伸長度０．２０〜０．５０％の範
囲にするには極めて大きな張力を必要とし実用的でない
からである。In the above non-woven fabric, the basis weight is 1
It is 8 / m 2 or less, but if it exceeds 18 g / m 2 , a very large tension is required to make the nonwoven fabric having an elongation of 0.20 to 0.50%, which is not practical. Is.
【０００９】[0009]
【作用】この発明の両面粘着テープの製造方法は、上記
のとおり、粘着剤転写第一工程において、麻を主成分と
する不織布を、長手方向に伸長させて、粘着剤が塗工さ
れた離型紙の粘着剤層を転写するものであるから、粘着
剤転写第二工程において転写された粘着剤層を内側にし
て巻回した巻重体においては、予め基材の不織布が伸ば
されているので、内側の粘着剤層側の縮み代がなくなっ
て、内側の粘着剤層部にしわの発生がなくなる。As described above, the double-sided pressure-sensitive adhesive tape manufacturing method of the present invention is characterized in that, in the pressure-sensitive adhesive transfer first step, the nonwoven fabric containing hemp as a main component is stretched in the longitudinal direction to release the pressure-sensitive adhesive-coated release tape. Since it is to transfer the pressure-sensitive adhesive layer of the pattern paper, in the wound body wound with the pressure-sensitive adhesive layer transferred in the pressure-sensitive adhesive transfer second step inside, since the nonwoven fabric of the base material is stretched in advance, There is no shrinkage margin on the inner pressure-sensitive adhesive layer side, and wrinkles do not occur on the inner pressure-sensitive adhesive layer portion.
【００１０】また、不織布は、その坪量が１８ｇ／ｍ2
以下であって、その伸長度は０．２０〜０．５０％とさ
れるから、得られる両面粘着テープにカールが発生する
ことがない。The nonwoven fabric has a basis weight of 18 g / m 2.
Since the elongation is 0.20 to 0.50%, the obtained double-sided pressure-sensitive adhesive tape does not curl.
【００１１】[0011]
【実施例】以下、この発明方法の実施例について説明す
る。図１はこの発明の両面粘着テープの製造方法の説明
図である。EXAMPLES Examples of the method of the present invention will be described below. FIG. 1 is an explanatory view of the method for producing the double-sided adhesive tape of the present invention.
【００１２】１は基材巻重体、２は送りロール、３は第
一の転写ロール、４は引取ロール、６は第二の転写ロー
ルである。ａは、坪量が１８ｇ／ｍ2 未満の麻不織布か
らなる基材であり、基材巻重体１から繰り出され、送り
ロール２を経て第一の転写ロール３に送られる。同時
に、片面に粘着剤が塗工されて粘着剤層ｃが形成された
離型紙ｂも転写ロール３に送られ、この転写ロール３に
おいて、その粘着剤層ｃが基材ａに面して重ね合わされ
転写されて積層体５とされる。Reference numeral 1 is a base material roll, 2 is a feed roll, 3 is a first transfer roll, 4 is a take-up roll, and 6 is a second transfer roll. Reference character a is a base material made of a hemp nonwoven fabric having a basis weight of less than 18 g / m 2 , which is fed from the base material roll 1 and is fed to the first transfer roll 3 via the feed roll 2. At the same time, the release paper b having the adhesive layer c formed on one surface thereof is also sent to the transfer roll 3, and the transfer roll 3 is overlaid with the adhesive layer c facing the base material a. Then, it is transferred and formed into a laminated body 5.
【００１３】このとき、引取ロール４による基材ａの引
取速度は、基材ａをその長手方向に０．２０〜０．５０
％伸長するよう、送りロール２の基材送り速度よりも早
くされて基材にその長手方向の張力がかけられる。その
結果、基材ａは、第一の転写ロール３において、その長
手方向に０．２０〜０．５０％伸長した状態となって上
記の転写が行われることになる。At this time, the take-up speed of the substrate a by the take-up roll 4 is 0.20 to 0.50 in the longitudinal direction of the substrate a.
The base material is fed at a speed higher than the base material feed speed of the feed roll 2 so that the base material is tensioned in the longitudinal direction so as to be stretched. As a result, the base material a in the first transfer roll 3 is extended by 0.20 to 0.50% in the longitudinal direction, and the transfer is performed.
【００１４】続いて、この積層体５は第二の転写ロール
６に送られる。この第二の転写ロール６においては、粘
着剤層ｅを形成した工程紙ｄも送られ、その粘着剤層ｅ
が基材１に当設するようにして積層体５に重ねられる。
そして工程紙ｄは剥離される。Subsequently, the laminated body 5 is sent to the second transfer roll 6. In the second transfer roll 6, the process paper d on which the pressure-sensitive adhesive layer e is formed is also fed, and the pressure-sensitive adhesive layer e
Are stacked on the laminated body 5 so as to abut on the base material 1.
Then, the process paper d is peeled off.
【００１５】こうして、工程紙ｄ上の粘着剤層ｅは、積
層体５の基材１の下面に転写され、両面粘着テープ７を
得る。この両面粘着テープ７は、図２に部分的に示され
ているように、図示していない紙芯に離型紙ｂを外側に
して巻き取られ、巻重体とされる。In this way, the pressure-sensitive adhesive layer e on the process paper d is transferred to the lower surface of the base material 1 of the laminate 5 to obtain the double-sided pressure-sensitive adhesive tape 7. As shown partially in FIG. 2, the double-sided pressure-sensitive adhesive tape 7 is wound around a paper core (not shown) with the release paper b on the outside to form a wound body.
【００１６】上記の離型紙ｂは、上記のとおり、粘着剤
層ｃを基材１の片面に転写するための工程紙としての役
割を果たすとともに、粘着剤層ｃとともにそのまま基材
１に残して両面粘着テープ７におけるセパレーター（離
型紙）とされるものである。従って、粘着剤層ｃが形成
される面には、粘着剤との剥離性がよいことが必要であ
り、工程紙ｄと同じものでもよい。離型紙ｂや工程紙ｄ
の粘着剤層ｃ、ｅが形成される面には、必要に応じて離
型剤を塗布する等の離型処理を行っておくことが好まし
い。As described above, the release paper b serves as a process paper for transferring the pressure-sensitive adhesive layer c to one side of the substrate 1, and is left on the substrate 1 as it is together with the pressure-sensitive adhesive layer c. It is used as a separator (release paper) in the double-sided adhesive tape 7. Therefore, the surface on which the pressure-sensitive adhesive layer c is formed needs to have good releasability from the pressure-sensitive adhesive, and may be the same as the process paper d. Release paper b and process paper d
It is preferable that the surface on which the pressure-sensitive adhesive layers c and e are formed is subjected to a releasing treatment such as applying a releasing agent, if necessary.
【００１７】次に、この発明の両面粘着テープの製造方
法についての実験例を説明する。この実験において、基
材ａとしては、１００％マニラ麻の不織布（坪量；１０
ｇ／ｍ2 、１４ｇ／ｍ2 、１８ｇ／ｍ2、２３ｇ／
ｍ2 、２９ｇ／ｍ2 の５種を使用した（但し、２３ｇ／
ｍ2 及び２９ｇ／ｍ2 は比較例)。Next, an experimental example of the method for producing the double-sided adhesive tape of the present invention will be described. In this experiment, 100% Manila hemp nonwoven fabric (basis weight: 10
g / m 2 , 14 g / m 2 , 18 g / m 2 , 23 g /
5 kinds of m 2 and 29 g / m 2 were used (however, 23 g / m 2
m 2 and 29 g / m 2 are comparative examples).
【００１８】また、離型紙ｂ、工程紙ｄとしては、８０
ｇ上質紙の両面にポリエチレンをラミネートしたものを
使用し、粘着剤としては、いずれもアクリル系粘着剤を
使用し、これを上記離型紙ｂ及び工程紙ｄの片面に７０
μ厚さ（乾燥時）に塗工してそれぞれ粘着剤層ｃ、ｅを
形成した。The release paper b and the process paper d are 80
g Polyethylene laminated on both sides of high-quality paper is used, and an acrylic adhesive is used as the adhesive on both sides of the release paper b and the process paper d.
It was applied to a thickness of μ (when dried) to form pressure-sensitive adhesive layers c and e, respectively.
【００１９】また、引取ロール４の引取速度と引取強さ
を調整することにより、基材ａに対する張力を変え、基
材ａの伸長度を表１に示すとおりの範囲とした。表１に
示すとおりの基材ａの坪量及び伸長度により、前記した
とおりの方法で各種両面粘着テープ７を製造した。By adjusting the take-up speed and the take-up strength of the take-up roll 4, the tension with respect to the base material a was changed so that the elongation degree of the base material a was within the range shown in Table 1. Various double-sided pressure-sensitive adhesive tapes 7 were manufactured by the method as described above according to the basis weight and the elongation of the base material a as shown in Table 1.
【００２０】得られた両面粘着テープ７のしわ、カール
の状況について、次の方法により判定した。すなわち、
紙芯に巻き付けて巻重体としたときの、しわ（折れじ
わ）の発生の有無については、得られた各両面粘着テー
プ７をその離型紙ｂを外側にして、３インチ径の紙芯に
２０ｍ巻き付け、常温で２４時間放置後、巻きほぐし、
紙芯に近い部分の粘着剤層ｅに折れじわが発生していた
かその有無を調べ、無い場合を○、折れじわが少し有り
の場合を△とし、折れじわ有りの場合を×とした。The wrinkles and curls of the obtained double-sided pressure-sensitive adhesive tape 7 were evaluated by the following method. That is,
Regarding the presence or absence of wrinkles (creases) when wound around a paper core to form a wound body, each of the obtained double-sided adhesive tapes 7 is placed on a paper core having a diameter of 3 inches with the release paper b as the outside. Wrap it for 20 m, leave it at room temperature for 24 hours, then unwind it,
The presence or absence of creases in the adhesive layer e near the paper core was examined, and when there was no creases, it was evaluated as ◯, when there were some creases as Δ, and when there were creases as x.
【００２１】また、両面粘着テープ７のカールの発生に
ついては、２００ｍｍ幅に切断した上記巻重体から、両
面粘着テープ７を巻きほぐし、長さ２００ｍｍに切り取
った２００×２００ｍｍの両面粘着テープを試料とし、
これを水平台に離型紙ｂを下にして載置して、端部のは
ね上がり高さを測定した。このとき、はね上がりが５０
ｍｍ以下のものを○、５０ｍｍを超すものを×とした。Regarding the occurrence of curling of the double-sided adhesive tape 7, the double-sided adhesive tape 7 was unwound from the above-mentioned wound body cut into a width of 200 mm and cut into a length of 200 mm to prepare a double-sided adhesive tape of 200 × 200 mm as a sample. ,
This was placed on a horizontal table with the release paper b facing down, and the height of the edge jumping up was measured. At this time, the splash is 50
Those having a diameter of less than or equal to mm were evaluated as ◯, and those exceeding 50 mm were evaluated as x.
【００２２】これらの結果は表１に示すとおりであっ
た。The results are shown in Table 1.
【００２３】[0023]
【表１】 [Table 1]
【００２４】この結果から明らかなとおり、基材ａとし
ては、坪量が１８ｇ／ｍ2 を超さず、第一の粘着剤転写
工程において、基材ａが０．２０〜０．５０％伸長して
いる状態に張力をかけた場合において、折れじわの発生
がないとともに、カールの発生もないことが確認され
た。これに対し、基材の坪量が１８ｇ／ｍ2 を超えた
り、第一の粘着剤転写工程において、基材ａの伸度が
０．２０％未満であると折れじわの発生が見られ、０．
５０％を超える場合にはカールの発生が見られ、いずれ
の場合にも良質の両面粘着テープが得られなかった。As is clear from these results, as the base material a, the basis weight does not exceed 18 g / m 2 , and the base material a is expanded by 0.20 to 0.50% in the first pressure-sensitive adhesive transfer step. It was confirmed that when a tension was applied to the state of being kept, no creases were generated and no curl was generated. On the other hand, when the basis weight of the base material exceeds 18 g / m 2 or the elongation of the base material a is less than 0.20% in the first pressure-sensitive adhesive transfer step, the occurrence of creases is observed. , 0.
When it exceeded 50%, curling was observed, and in each case, a good quality double-sided adhesive tape could not be obtained.
【００２５】[0025]
【発明の効果】この発明方法によれば、以上のとおり、
折れじわが発生したり、カールが発生したりすることが
ない、麻を主体とした不織布を基材とする良質の両面粘
着テープを製造することができる。According to the method of the present invention, as described above,
It is possible to produce a high-quality double-sided pressure-sensitive adhesive tape that is based on a non-woven fabric mainly composed of hemp and is free from creases and curls.
【図１】本発明の両面粘着テープの製造方法に用いられ
る実施例の説明図である。FIG. 1 is an explanatory view of an example used in the method for producing a double-sided pressure-sensitive adhesive tape of the present invention.
【図２】両面粘着テープ巻重体の部分断面図である。FIG. 2 is a partial cross-sectional view of a double-sided pressure-sensitive adhesive tape roll.
１ 基材巻重体 ２ 送りロール ３ 第一の転写ロール ４ 引取ロール ６ 第二の転写ロール ７ 両面粘着テープ ａ 基材 ｂ 離型紙 ｃ、ｅ 粘着剤層 ｄ 工程紙 DESCRIPTION OF SYMBOLS 1 Base material roll 2 Feed roll 3 First transfer roll 4 Take-up roll 6 Second transfer roll 7 Double-sided adhesive tape a Base material b Release paper c, e Adhesive layer d Process paper
Claims (1)
紙の粘着剤層を重ね合わせて転写する粘着剤転写第一工
程と、基材の他面に工程紙上の粘着剤層を転写する粘着
剤転写第二工程とからなる両面粘着テープの製造方法で
あって、基材として麻を主成分とし、坪量が１８ｇ／ｍ
2 以下の不織布を使用し、粘着剤転写第一工程におい
て、この不織布に長尺方向の張力をかけて０．２０〜
０．５０％伸長させた状態で、離型紙の粘着剤層を転写
することを特徴とする両面粘着テープの製造方法。1. A pressure-sensitive adhesive transfer first step of transferring a pressure-sensitive adhesive layer of release paper coated with a pressure-sensitive adhesive on one surface of a substrate, and a pressure-sensitive adhesive layer on a process paper on the other surface of the substrate. A method for producing a double-sided pressure-sensitive adhesive tape, which comprises a second step of transferring a pressure-sensitive adhesive, which comprises hemp as a main component as a base material and has a basis weight of 18 g / m 2.
Using a non-woven fabric of 2 or less, in the pressure-sensitive adhesive transfer first step, 0.20 to 20-tensile force is applied to the non-woven fabric in the longitudinal direction.
A method for producing a double-sided pressure-sensitive adhesive tape, which comprises transferring the pressure-sensitive adhesive layer of release paper in a state of being stretched by 0.50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30473491A JPH05140520A (en) | 1991-11-20 | 1991-11-20 | Production of double-coated tacky tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30473491A JPH05140520A (en) | 1991-11-20 | 1991-11-20 | Production of double-coated tacky tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05140520A true JPH05140520A (en) | 1993-06-08 |
Family
ID=17936576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30473491A Pending JPH05140520A (en) | 1991-11-20 | 1991-11-20 | Production of double-coated tacky tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05140520A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356656A (en) * | 2001-05-30 | 2002-12-13 | Nippon Petrochemicals Co Ltd | Ground fabric for double-coated adhesive tape using nonwoven fabric, double-coated adhesive tape using the same, and method for producing the double-coated adhesive tape |
| US8146640B2 (en) * | 2007-02-16 | 2012-04-03 | Macpi-Pressing Division S.P.A. | Hemming system and method for hemming a fabric without using seams, by introducing an adhesively processed resilient element into one or two opposite surfaces of the fabric |
| EP2565246A2 (en) | 2011-08-31 | 2013-03-06 | Brother Kogyo Kabushiki Kaisha | Double-sided adhesive tape |
| JP2013049816A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
| JP2013049814A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
| JP2013049815A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
-
1991
- 1991-11-20 JP JP30473491A patent/JPH05140520A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002356656A (en) * | 2001-05-30 | 2002-12-13 | Nippon Petrochemicals Co Ltd | Ground fabric for double-coated adhesive tape using nonwoven fabric, double-coated adhesive tape using the same, and method for producing the double-coated adhesive tape |
| US8146640B2 (en) * | 2007-02-16 | 2012-04-03 | Macpi-Pressing Division S.P.A. | Hemming system and method for hemming a fabric without using seams, by introducing an adhesively processed resilient element into one or two opposite surfaces of the fabric |
| EP2565246A2 (en) | 2011-08-31 | 2013-03-06 | Brother Kogyo Kabushiki Kaisha | Double-sided adhesive tape |
| CN102965041A (en) * | 2011-08-31 | 2013-03-13 | 兄弟工业株式会社 | Double-sided adhesive tape, tape box and production method thereof |
| JP2013049816A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
| JP2013049814A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
| JP2013049815A (en) * | 2011-08-31 | 2013-03-14 | Brother Industries Ltd | Double-sided adhesive tape |
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