JPH0543850A - Production of double-coated self-adhesive tape - Google Patents
Production of double-coated self-adhesive tapeInfo
- Publication number
- JPH0543850A JPH0543850A JP20949891A JP20949891A JPH0543850A JP H0543850 A JPH0543850 A JP H0543850A JP 20949891 A JP20949891 A JP 20949891A JP 20949891 A JP20949891 A JP 20949891A JP H0543850 A JPH0543850 A JP H0543850A
- Authority
- JP
- Japan
- Prior art keywords
- double
- adhesive tape
- support
- sensitive adhesive
- pressure
- 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、パルプ混入不織布を
支持体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 using a pulp-containing nonwoven fabric as a support.
【0002】[0002]
【従来の技術】紙・不織布は、安価であること、粘着剤
の含浸がよいこと、柔軟性が適度であるので被着体への
なじみがよいこと、等の利点を有しており、両面粘着テ
ープの支持体として広く使用されている。なかでも、パ
ルプ混入不織布は、安価で適度の強度を有し、支持体と
しての上記の特性を備えているので特に汎用されてい
る。2. Description of the Related Art Paper / nonwoven fabric has advantages such as low cost, good impregnation with an adhesive, and good adaptability to an adherend due to its moderate flexibility. Widely used as a support for adhesive tape. Among them, the pulp-mixed nonwoven fabric is particularly widely used because it is inexpensive, has a proper strength, and has the above-mentioned characteristics as a support.
【0003】ところで、パルプ混入不織布、とりわけパ
ルプ混入率が高い不織布(例えばパルプが50%程度混
入されたレーヨン不織布)を支持体として用いた両面粘
着テープは、これを紙管に巻いておくと、セパレーター
に面した部分が部分的に浮き上がった状態、いわゆる巣
が発生し易かった。By the way, a double-sided adhesive tape using a non-woven fabric containing pulp, particularly a non-woven fabric having a high pulp mixing rate (for example, rayon non-woven fabric containing about 50% pulp) as a support, is wound around a paper tube. A state in which the part facing the separator was partially lifted, that is, a so-called nest was easily generated.
【0004】この巣の発生をなくすため、従来、両面粘
着テープを紙管に巻く際、巻き取りテンションを強くし
たり、タッチロールで両面粘着テープを紙管に強く圧着
するなどしていた。In order to eliminate the formation of the nest, conventionally, when the double-sided pressure-sensitive adhesive tape is wound around the paper tube, the winding tension is increased, or the double-sided pressure-sensitive adhesive tape is strongly pressed onto the paper tube with a touch roll.
【0005】[0005]
【発明が解決しようとする課題】しかし、上記のような
手段によっても巣の発生を完全に無くすことはできなか
った。However, it has not been possible to completely eliminate the generation of nests even by the above means.
【0006】この発明は、巻き取り時に支持体や両面粘
着テープに強い応力をかけることなく、巣の発生が抑制
された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。An object of the present invention is to provide a method for producing a double-sided pressure-sensitive adhesive tape in which generation of cavities is suppressed without applying a strong stress to the support or the double-sided pressure-sensitive adhesive tape during winding.
【0007】[0007]
【課題を解決するための手段】この発明者は、上記課題
について鋭意研究の結果、両面粘着テープが紙管に巻か
れて巻重体とされているとき、巣は、両面粘着テープの
伸縮によってセパレーターとその外側の粘着剤剤層とが
部分的に剥離して生成された空隙であって、特に支持体
のパルプ混入不織布の含水率が高いと、両面粘着テープ
の伸縮が大きく巣の発生が多いことを知見し、この発明
を完成した。As a result of earnest research on the above problems, the present inventor has found that when a double-sided pressure-sensitive adhesive tape is wound around a paper tube to form a wound body, a nest is formed by expansion and contraction of the double-sided pressure-sensitive adhesive tape. This is a void formed by the partial peeling of the adhesive layer on the outside with the adhesive layer, and especially when the moisture content of the pulp-mixed non-woven fabric of the support is high, the double-sided adhesive tape expands and contracts largely, and cavities often occur. Based on this finding, the present invention has been completed.
【0008】この発明の両面粘着テープの製造方法は、
パルプ混入不織布を支持体とし、該支持体の両面に粘着
剤を塗工して両面粘着テープを製造するにあたり、支持
体を乾燥した後に粘着剤を塗工することを特徴としてい
る。The method for producing the double-sided adhesive tape of the present invention is
When a non-woven fabric containing pulp is used as a support and a pressure-sensitive adhesive is applied to both surfaces of the support to produce a double-sided pressure-sensitive adhesive tape, the support is dried and then the pressure-sensitive adhesive is applied.
【0009】パルプ混入不織布としては、従来から両面
粘着テープの支持体として用いられているパルプ混入不
織布、例えば、パルプが50%程度混入されたレーヨン
不織布などがあげられる。また、粘着剤もゴム系、アク
リル系、ビニル系、シリコン系などの従来から用いられ
ているものが用いられる。Examples of the pulp-containing nonwoven fabric include a pulp-containing nonwoven fabric which has been conventionally used as a support for a double-sided pressure-sensitive adhesive tape, for example, a rayon nonwoven fabric containing about 50% pulp. Also, as the adhesive, those conventionally used such as rubber, acrylic, vinyl, and silicone are used.
【0010】パルプ混入不織布を乾燥する方法として
は、乾燥炉を通過させる方法、加熱ロールに接触させる
ことにより加熱して乾燥する方法などがあげられるが、
これに限定されるものでない。この乾燥度合いについて
は、パルプ混入不織布の含水率が3%以下、好ましくは
2%以下となるように乾燥するのが好ましい。Examples of the method for drying the pulp-containing nonwoven fabric include a method of passing it through a drying furnace and a method of heating by drying by contact with a heating roll.
It is not limited to this. Regarding the degree of drying, it is preferable to dry the nonwoven fabric containing pulp so that the moisture content thereof is 3% or less, preferably 2% or less.
【0011】[0011]
【作用】粘着剤の塗工前にパルプ混入不織布が乾燥され
るので、支持体の含水率が低いものとなって支持体及び
両面粘着テープの伸縮が小さくなり巣の発生が防がれ
る。Since the non-woven fabric mixed with pulp is dried before the application of the pressure-sensitive adhesive, the water content of the support becomes low and the expansion of the support and the double-sided pressure-sensitive adhesive tape becomes small, thus preventing generation of cavities.
【0012】[0012]
【実施例】この発明の実施例を図面を参照して説明す
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。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of the method for producing the double-sided pressure-sensitive adhesive tape of the present invention.
【0013】図1において、1は支持体、2は加熱ロー
ル、3及び9は転写ロール、4及び8は転写シート、5
及び7は乾燥炉である。支持体1は、例えばパルプが5
0%程度混入されたレーヨン不織布からなるパルプ混入
不織布であり、80〜100℃に加熱された加熱ロール
2に送られる。この加熱ロール2により支持体1は加熱
され、その含水率が3%以下、好ましく2%以下に乾燥
されて転写ロール3に送られる。一方、転写シート4
は、図2に示されるとおり、工程紙(セパレーター)4
1に粘着剤層42が塗工されることにより形成されてお
り、転写ロール3に送られる。工程紙41は図示してい
ないが両面がシリコーン系離型剤などで離型処理されて
いる。この離型処理面は、粘着剤層42側の離型処理面
の剥離力が他面の剥離力よりもやや重くされている。ま
た、5は粘着剤乾燥炉である。In FIG. 1, 1 is a support, 2 is a heating roll, 3 and 9 are transfer rolls, 4 and 8 are transfer sheets, 5
And 7 are drying ovens. The support 1 has, for example, 5 pulp.
This is a pulp-mixed non-woven fabric made of rayon non-woven fabric mixed with about 0%, and sent to the heating roll 2 heated to 80 to 100 ° C. The support 1 is heated by the heating roll 2, dried to a water content of 3% or less, preferably 2% or less, and sent to the transfer roll 3. On the other hand, the transfer sheet 4
2 is a process paper (separator) 4 as shown in FIG.
It is formed by coating the pressure-sensitive adhesive layer 42 on 1 and is sent to the transfer roll 3. Although not shown, both sides of the process paper 41 are release-treated with a silicone release agent or the like. With respect to the release-treated surface, the peeling force of the release-treated surface on the pressure-sensitive adhesive layer 42 side is set to be slightly heavier than the peeling force of the other surface. Further, 5 is an adhesive drying oven.
【0014】転写ロール3において、転写シート4の粘
着剤層42面が支持体1に接し、支持体1と転写シート
4とが積層され、支持体1の片面に粘着剤層42が積層
された、図3に示されるとおりの中間テープ6が形成さ
れる。In the transfer roll 3, the adhesive layer 42 side of the transfer sheet 4 is in contact with the support 1, the support 1 and the transfer sheet 4 are laminated, and the adhesive layer 42 is laminated on one side of the support 1. The intermediate tape 6 as shown in FIG. 3 is formed.
【0015】続いて、転写ロール9において、中間テー
プ6の下面、すなわち支持体1の粘着剤が塗工されてい
ない面に、転写シート4と同様の転写シート8の粘着剤
層82が転写され、両面粘着テープ10が形成される。Subsequently, in the transfer roll 9, the adhesive layer 82 of the transfer sheet 8 similar to the transfer sheet 4 is transferred to the lower surface of the intermediate tape 6, that is, the surface of the support 1 on which the adhesive is not applied. The double-sided adhesive tape 10 is formed.
【0016】すなわち、シリコーン系離型剤などで離型
処理された工程紙81の離型処理面に粘着剤が図示して
ない塗工装置により塗工され、粘着剤乾燥炉7で乾燥さ
れた転写シート8は、転写ロール9に送られる。この転
写ロール9において、転写シート8は支持体1の下面に
粘着剤層82が接して積層されると共に工程紙81は剥
離される。その結果、粘着剤剤層82は支持体1に転写
され、両面粘着テープ10が形成される。That is, a pressure-sensitive adhesive is applied to the release-treated surface of the process paper 81 which has been release-treated with a silicone-based release agent by a coating device (not shown) and dried in the pressure-sensitive adhesive drying oven 7. The transfer sheet 8 is sent to the transfer roll 9. In the transfer roll 9, the transfer sheet 8 is laminated with the pressure-sensitive adhesive layer 82 in contact with the lower surface of the support 1, and the process paper 81 is peeled off. As a result, the pressure-sensitive adhesive layer 82 is transferred to the support 1, and the double-sided pressure-sensitive adhesive tape 10 is formed.
【0017】このようにして、図4に示されるとおり、
支持体1の両面に粘着剤層42、82が形成され、粘着
剤層42がセパレーター(工程紙)41で保護された両
面粘着テープ10が得られ、セパレーター41を外側に
して紙管11に巻かれ、巻重体とされる。なお、両面粘
着テープ10を紙管11に巻くときには、特に巻きテン
ションを強くしたり、タッチロールで押圧するなどして
堅く巻くことなく通常の巻き方によった。Thus, as shown in FIG.
The double-sided pressure-sensitive adhesive tape 10 in which the pressure-sensitive adhesive layers 42 and 82 are formed on both sides of the support 1 and the pressure-sensitive adhesive layer 42 is protected by the separator (process paper) 41 is obtained, and the separator 41 is placed outside and wound around the paper tube 11. He is regarded as a rolled body. When the double-sided pressure-sensitive adhesive tape 10 is wound around the paper tube 11, the usual winding method is used without increasing the winding tension or pressing with a touch roll to tightly wind it.
【0018】このようにして、得られた両面粘着テープ
の巻重体には巣の発生はなかった。一方、加熱ロール2
をなくしたこと以外、上記の方法と同様にして得た両面
粘着テープの巻重体には、何箇所かに巣の発生がみられ
た。In this way, no nest was formed in the obtained double-sided pressure-sensitive adhesive tape roll. On the other hand, heating roll 2
With the double-sided pressure-sensitive adhesive tape wound body obtained in the same manner as described above, except that the above was eliminated, cavities were observed at several places.
【0019】上記の実施例においては、支持体1が加熱
ロール2に接触して加熱乾燥される方法が採られている
が、乾燥手段として加熱ロール2を用いることの他、図
5に示されるとおり、乾燥炉2a内を通過させることに
より支持体1を乾燥させることもできる。In the above-mentioned embodiment, a method is employed in which the support 1 is brought into contact with the heating roll 2 to be heated and dried, but in addition to using the heating roll 2 as a drying means, it is shown in FIG. As described above, the support 1 can be dried by passing through the drying furnace 2a.
【0020】[0020]
【発明の効果】この発明の両面粘着テープの製造方法
は、パルプ混入不織布からなる支持体を乾燥した後に粘
着剤を塗工するものであるから、支持体の含水率が低い
ものとなって支持体及び両面粘着テープの伸縮が小さく
抑えられ、巣の発生が防がれる。In the method for producing a double-sided pressure-sensitive adhesive tape of the present invention, since the pressure-sensitive adhesive is applied after drying the support made of pulp-containing nonwoven fabric, the support has a low water content and is thus supported. The expansion and contraction of the body and the double-sided adhesive tape are suppressed to a small extent, and the formation of nests is prevented.
【図1】この発明の両面粘着テープの製造方法の説明図
である。FIG. 1 is an explanatory view of a method for producing a double-sided pressure-sensitive adhesive tape of the present invention.
【図2】図1に示す転写シートの断面図である。FIG. 2 is a sectional view of the transfer sheet shown in FIG.
【図3】図1に示す中間テープの断面図である。FIG. 3 is a cross-sectional view of the intermediate tape shown in FIG.
【図4】図1に示す両面粘着テープの断面図である。FIG. 4 is a cross-sectional view of the double-sided adhesive tape shown in FIG.
【図5】支持体の別の乾燥方法の説明図である。FIG. 5 is an explanatory view of another method of drying the support.
1 支持体 2 加熱ロール 3、9 転写ロール 4、8 転写シート 6 中間テープ 10 両面粘着テープ 11 紙管 1 Support 2 Heating Roll 3, 9 Transfer Roll 4, 8 Transfer Sheet 6 Intermediate Tape 10 Double-sided Adhesive Tape 11 Paper Tube
Claims (2)
体の両面に粘着剤を塗工して両面粘着テープを製造する
にあたり、支持体を乾燥した後に粘着剤を塗工すること
を特徴とする両面粘着テープの製造方法。1. A non-woven fabric mixed with pulp is used as a support, and when a pressure sensitive adhesive is applied to both sides of the support to produce a double-sided pressure-sensitive adhesive tape, the pressure-sensitive adhesive is applied after the support is dried. Method for producing double-sided adhesive tape.
とする請求項1記載の両面粘着テープの製造方法。2. The method for producing a double-sided adhesive tape according to claim 1, wherein the support is dried to 3% or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20949891A JPH0543850A (en) | 1991-08-21 | 1991-08-21 | Production of double-coated self-adhesive tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20949891A JPH0543850A (en) | 1991-08-21 | 1991-08-21 | Production of double-coated self-adhesive tape |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0543850A true JPH0543850A (en) | 1993-02-23 |
Family
ID=16573805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20949891A Pending JPH0543850A (en) | 1991-08-21 | 1991-08-21 | Production of double-coated self-adhesive tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0543850A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010020537A2 (en) * | 2008-08-21 | 2010-02-25 | Tesa Se | Method for producing strip laminates |
-
1991
- 1991-08-21 JP JP20949891A patent/JPH0543850A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010020537A2 (en) * | 2008-08-21 | 2010-02-25 | Tesa Se | Method for producing strip laminates |
WO2010020537A3 (en) * | 2008-08-21 | 2010-04-15 | Tesa Se | Method for producing strip laminates |
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