JP5290011B2 - Double-sided tape base paper and double-sided tape - Google Patents
Double-sided tape base paper and double-sided tape Download PDFInfo
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- JP5290011B2 JP5290011B2 JP2009064039A JP2009064039A JP5290011B2 JP 5290011 B2 JP5290011 B2 JP 5290011B2 JP 2009064039 A JP2009064039 A JP 2009064039A JP 2009064039 A JP2009064039 A JP 2009064039A JP 5290011 B2 JP5290011 B2 JP 5290011B2
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- Prior art keywords
- double
- sided tape
- base paper
- paper
- adhesive
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- 239000000853 adhesive Substances 0.000 claims abstract description 25
- 230000001070 adhesive effect Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000004064 recycling Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 abstract description 7
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 5
- 238000010009 beating Methods 0.000 abstract description 4
- 239000000123 paper Substances 0.000 description 62
- 230000000052 comparative effect Effects 0.000 description 15
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000003292 glue Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 6
- 239000004745 nonwoven fabric Substances 0.000 description 6
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 229920002401 polyacrylamide Polymers 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- 239000013054 paper strength agent Substances 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 239000012948 isocyanate Substances 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000000907 Musa textilis Species 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- GBCAVSYHPPARHX-UHFFFAOYSA-M n'-cyclohexyl-n-[2-(4-methylmorpholin-4-ium-4-yl)ethyl]methanediimine;4-methylbenzenesulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1.C1CCCCC1N=C=NCC[N+]1(C)CCOCC1 GBCAVSYHPPARHX-UHFFFAOYSA-M 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Paper (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
本発明は、両面テープ用原紙及び両面テープに関する。 The present invention relates to a double-sided tape base paper and a double-sided tape.
近年環境問題から、家電リサイクル法に代表されるように家電製品のリサイクルが重要視
されている。
In recent years, recycling of home appliances has been regarded as important as represented by the Home Appliance Recycling Law due to environmental problems.
一方では家電リサイクル工場では各社が製造した様々なモデルの家電製品を人海戦術で解
体作業しており、解体時間の短縮が収益性の鍵となっている。
On the other hand, various models of home appliances manufactured by each company are dismantled by human naval tactics at home appliance recycling factories, and shortening the disassembly time is the key to profitability.
またテレビや携帯電話やパソコンのようにさらなる薄型化に各家電メーカーが開発にしの
ぎを削っており、家電製品の組み立て固定用に使われるネジは薄型化とリサイクルし易く
するため、両面テープに置き換わってきており、色々な両面テープが提案されている。
In addition, each home appliance manufacturer has been working hard to develop thinner products such as TVs, mobile phones, and PCs. The screws used for assembly and fixing of home appliances have been replaced with double-sided tape to make them thinner and easier to recycle. Various double-sided tapes have been proposed.
また、ＶＯＣ問題から溶剤系の粘着剤から水系のエマルジョン系の粘着剤が開発され、置
き換えが検討されている。そのため、基材についても、溶剤系の粘着剤と相性の良かった
疎水性のＰＥＴ不織布等では基材として吸水度と引っ張り強さを満たせず、剥がすときに
糊残りなく基材破れもない両面テープとしては不十分だった。水系の粘着剤と相性の良い
親水性の基材の開発が待ち望まれている。理由は粘着剤と基材の結合力を強くしないと剥
がしたときに糊のこりする可能性があるからである。
Also, from the VOC problem, a water-based emulsion-based pressure-sensitive adhesive has been developed from a solvent-based pressure-sensitive adhesive, and replacement is being studied. Therefore, even for base materials, double-sided tape that does not satisfy water absorption and tensile strength as a base material for hydrophobic PET nonwoven fabric, etc., which has good compatibility with solvent-based adhesives, and has no adhesive residue and no base material tear when peeled off As it was insufficient. The development of a hydrophilic base material that has good compatibility with water-based adhesives is awaited. The reason is that, if the bonding force between the pressure-sensitive adhesive and the base material is not increased, there is a possibility of glue sticking when peeled off.
粘着剤に水溶性のものを用い、リサイクル時に水に濡らし、はがし易くするという両面テ
ープが提案されている。（特許文献１）
There has been proposed a double-sided tape that uses a water-soluble pressure-sensitive adhesive so that it can be easily wetted and removed during recycling. (Patent Document 1)
また、紫外線に強い粘着剤を作製し、経時で基材への粘着力が上がり過ぎないように工夫
した両面テープが提案されている。（特許文献２）
In addition, a double-sided tape has been proposed in which a pressure-sensitive adhesive that is resistant to ultraviolet rays is produced and devised so that the adhesive strength to the substrate does not increase excessively over time. (Patent Document 2)
また、基材に用いる不織布の層間破壊強度を調整し、特定の粘弾性をもつ粘着剤を組み合
わせた両面テープが提案されている。（特許文献３）
In addition, a double-sided tape that adjusts the interlaminar fracture strength of a nonwoven fabric used as a base material and combines a pressure-sensitive adhesive having a specific viscoelasticity has been proposed. (Patent Document 3)
また、特定の物性値を有するマニラ麻パルプのみからなる不織布と特定の糊残りしにくい
アクリル系粘着剤を組み合わせた両面テープが提案されている。（特許文献４）
In addition, a double-sided tape in which a non-woven fabric made only of Manila hemp pulp having specific physical property values and an acrylic pressure-sensitive adhesive that does not easily leave any specific adhesive has been proposed. (Patent Document 4)
麻パルプを原材料に使用すると水への分散性が悪く、離解するのに時間がかかり生産性を
損ねる場合があり、またコスト高になる場合がある。またできた両面テープ用基材として
吸水度を十分高くできない可能性がある。
When hemp pulp is used as a raw material, dispersibility in water is poor, it takes time to disaggregate, and productivity may be impaired, and cost may be increased. In addition, there is a possibility that the water absorption cannot be sufficiently high as the base material for the double-sided tape.
また、基材にバインダーを含まない不織布を用い、粘着剤を含浸させて作製した両面テー
プが提案されている。（特許文献５）
In addition, a double-sided tape produced by impregnating a pressure-sensitive adhesive using a non-woven fabric containing no binder has been proposed. (Patent Document 5)
また、粘着剤層にあらかじめ加熱発泡型剤を添加しておき、リサイクル時に加熱すること
により、発泡させはがし易くする両面テープが提案されている。（特許文献６）
In addition, a double-sided tape has been proposed in which a heat-foaming type agent is added in advance to the pressure-sensitive adhesive layer and heated during recycling to facilitate foaming. (Patent Document 6)
本発明は、水系の粘着剤に合った両面テープ用原紙を開発することにより、家電のリサイ
クル時にテープが破れることなく、糊残りすることなく、剥がせることにより、解体作業
がスムーズにできる部品固定用両面テープの提供を課題とする。
By developing a base paper for double-sided tapes that matches water-based adhesives, the present invention is designed to fix parts that can be dismantled smoothly by peeling off the tape without tearing or leaving no glue when recycling home appliances. The issue is to provide double-sided adhesive tape.
本発明者らは、かかる課題を解決するため、両面テープ用原紙の繊維原料を木材パルプのＮＢＫＰ、ＬＢＫＰのみとし、ＮＢＫＰとＬＢＫＰを１００：０〜８０：２０までの比率で混合して、ろ水度を６００〜６５０ｍｌＣＳＦに叩解し、米坪調整して抄紙機にて抄造することで、吸水度を９０ｍｍ／１０分以上、縦の引っ張り強さを１．５ｋＮ／ｍ以上、横の引っ張り強さを０．５ｋＮ／ｍ以上に調整した両面テープ原紙が水系の粘着剤に適していることを見い出したものである。更に、この原紙に水系の粘着剤を両面塗工した後に厚み調整して作製することにより、リサイクル時に破れることなく、糊残りすることなく剥がせる両面テープを作製できることを見い出し本発明を完成するに至った。すなわち本発明は、（１）繊維配合がＮＢＫＰ：ＬＢＫＰ＝１００：０〜８０：２０からなる水系粘着剤用の両面テープ用原紙であって、当該繊維をろ水度６００〜６５０ｍｌＣＳＦに叩解し、湿式抄紙法にて抄紙して、吸水度９０ｍｍ／１０分以上、縦の引っ張り強さが１．５ｋＮ／ｍ以上、横の引っ張り強さが０．５ｋＮ／ｍ以上に調整されたことを特徴とする水系粘着剤用の両面テープ用原紙、（２）（１）の両面テープ用原紙を用い水系粘着剤を両面併せて固形分で４０〜１００ｇ／ｍ２塗工し密度０．９０ｇ／ｃｍ３以上となるよう厚み調整して作製された両面テープ、を提供するものである。 The present inventors have found that in order to solve such problems, the fiber material of the base paper for double-sided tape wood pulp NBKP, only a LBKP, the N BKP and LBKP 100: 0 to 80: were mixed in a ratio of up to 20, Beating the freeness to 600-650ml CSF, adjusting the weight of the paper, and making paper with a paper machine, the water absorption is 90mm / 10min or more, the vertical tensile strength is 1.5kN / m or more, the horizontal tensile The present inventors have found that a double-sided tape base paper having a strength adjusted to 0.5 kN / m or more is suitable for an aqueous adhesive. Furthermore, it is found that a double-sided tape that can be peeled off without being broken during recycling and without leaving adhesive residue can be produced by adjusting the thickness after applying a double-sided aqueous adhesive to the base paper and completing the present invention. It came. That is, the present invention is (1) a double-sided tape base paper for water-based pressure-sensitive adhesive comprising a fiber blend of NBKP: LBKP = 100: 0 to 80:20, wherein the fiber is beaten to a freeness of 600 to 650 ml CSF, Papermaking by wet papermaking method, water absorption is adjusted to 90mm / 10min or more, longitudinal tensile strength is adjusted to 1.5kN / m or more, and lateral tensile strength is adjusted to 0.5kN / m or more. Double-sided tape base paper for water-based pressure-sensitive adhesive , (2) Double-sided tape base paper for (1) and double-sided water-based pressure-sensitive adhesive applied to a solid content of 40 to 100 g / m 2 and a density of 0.90 g / cm 3 The present invention provides a double-sided tape manufactured by adjusting the thickness so as to achieve the above.
本発明によれば、両面テープ用原紙の繊維材料に木材パルプのＮＢＫＰ、ＬＢＫＰのみを用い、ＮＢＫＰとＬＢＫＰを１００：０〜８０：２０までの比率で混合して、ろ水度を６００〜６５０ｍｌＣＳＦに叩解し、米坪調整して抄紙機にて抄造することで、吸水度を９０ｍｍ／１０分以上、縦の引っ張り強さを１．５ｋＮ／ｍ以上、横の引っ張り強さを０．５ｋＮ／ｍ以上に調整した水系の粘着剤に適した両面テープ用原紙を得ることができる。更に、この原紙を基材として、水系の粘着剤を両面に塗工し、厚み調整して得られる両面テープはリサイクル時に破れることなく、糊残りすることなく剥がすことができる。 According to the present invention, only wood pulp NBKP and LBKP are used as the fiber material of the base paper for double-sided tape, and NKP and LBKP are mixed in a ratio of 100: 0 to 80:20, and the freeness is 600 to 600. By beating into 650ml CSF, adjusting the paper weight and making with a paper machine, the water absorption is 90mm / 10min or more, the vertical tensile strength is 1.5kN / m or more, and the horizontal tensile strength is 0.5kN. A base paper for double-sided tape suitable for an aqueous adhesive adjusted to / m or more can be obtained. Furthermore, a double-sided tape obtained by applying a water-based pressure-sensitive adhesive on both sides using this base paper as a base material and adjusting the thickness can be peeled off without being broken during recycling and without leaving any adhesive.
以下、本発明を詳細に説明する。本発明で用いられる原紙は、木材パルプを原材料とするものである。使用できるパルプとしては、ＮＢＫＰ、ＬＢＫＰが挙げられるが、特にＮＢＫＰ単独或いはＮＢＫＰとＬＢＫＰを混合して使用することが好ましい。比率としてはＮＢＫＰ：ＬＢＫＰ＝１００：０〜８０：２０が望ましい。これよりもＬＢＫＰの比率を増やすと引っ張り強さが十分得られない場合がある。
Hereinafter, the present invention will be described in detail. Base paper used in the present invention, Ru der which the wood pulp raw materials. Examples of the usable pulp include NBKP and LBKP. In particular, NBKP alone or a mixture of NBKP and LBKP is preferably used. The ratio is preferably NBKP : LBKP = 100: 0 to 80:20. If the ratio of LBKP is increased more than this, sufficient tensile strength may not be obtained.
パルプはろ水度を６００〜６５０ｍｌＣＳＦに叩解する。叩解する方法としては公知のも
のであれば特に限定するものでなく、例としてはビーターやダブルディスクリファナーが
挙げられる。
The pulp is beaten to a freeness of 600-650 ml CSF. The beating method is not particularly limited as long as it is a known method, and examples include a beater and a double disc refiner.
木材パルプのろ水度が６００ｍｌＣＳＦより小さいと、吸水度が低くなり、水系の粘着剤
の紙への浸透が悪くなり、６５０ｍｌＣＳＦより大きいと引っ張り強さが弱くなる可能性
がある。
If the freeness of the wood pulp is less than 600 ml CSF, the water absorption will be low, and the penetration of the water-based adhesive into the paper will be poor, and if it is greater than 650 ml CSF, the tensile strength may be weakened.
また公知の製紙薬品を内添する。例えば紙力増強剤であるポリアクリルアミドエピクロロ
ヒドリンやＣＭＣやカチオンデンプンがある。
Also, known papermaking chemicals are internally added. For example, there are polyacrylamide epichlorohydrin, CMC and cationic starch which are paper strength enhancers.
上記の方法で作製した紙料を公知の抄造法で紙にする。具体的には長網抄紙機や円網抄紙
機や傾斜短網抄紙機による抄造法がある。
The stock prepared by the above method is made into paper by a known papermaking method. Specifically, there are paper making methods using a long paper machine, a circular paper machine, and an inclined short paper machine.
吸水度が９０ｍｍ／１０分未満となると、水系粘着剤を塗工したときに、紙への浸透が十
分でなく、紙の表面に粘着層を形成したり、或いは紙と粘着剤の結合力が十分でなく、剥
がすときに基材である紙から粘着剤だけが取り残され糊のこりの原因となる場合がある。
When the water absorption is less than 90 mm / 10 minutes, when the water-based adhesive is applied, the penetration into the paper is not sufficient, and an adhesive layer is formed on the surface of the paper, or the binding force between the paper and the adhesive is When it peels off, only the adhesive is left behind from the paper as the base material, which may cause glue sticking.
引っ張り強度の縦が１．５ｋＮ／ｍ未満及び横が０．５ｋＮ／ｍ未満の場合は両面テープ
を剥がすときに紙破れする可能性がある。
If the tensile strength is less than 1.5 kN / m and the width is less than 0.5 kN / m, there is a possibility of paper breakage when the double-sided tape is peeled off.
上記の方法で作製した両面テープ原紙に水系エマルジョン粘着剤を両面に塗工する。塗工
する方法としてはエアーナイフやグラビアロールやワイヤーバーが挙げられる。水系エマ
ルジョン粘着剤としてはアクリル系粘着剤が挙げられる。例示としてボンコートＷ―５６
９（ＤＩＣ製）がある。
An aqueous emulsion adhesive is applied to both sides of the double-sided tape base paper produced by the above method. Examples of the coating method include an air knife, a gravure roll, and a wire bar. An acrylic adhesive is mentioned as an aqueous emulsion adhesive. As an example, Boncourt W-56
9 (made by DIC).
粘着剤塗工液には硬化剤を粘着剤１００重量部に対し、１〜５重量部添加することが好ま
しい。硬化剤としてはイソシアネート系硬化剤が挙げられる。粘着剤塗工量は両面併せて
固形分で４０〜１００ｇ／ｍ２が望ましい。
It is preferable to add 1 to 5 parts by weight of a curing agent to 100 parts by weight of the pressure-sensitive adhesive in the pressure-sensitive adhesive coating liquid. Examples of the curing agent include isocyanate curing agents. The pressure-sensitive adhesive coating amount is preferably 40 to 100 g / m 2 in solid content on both sides.
粘着剤を塗工した後の紙厚調整には２本のロールの間を通して調整するキャレンダー方式
が挙げられる。上盤と下盤からなるプレス機で厚み調整してもよい。両面テープ原紙と糊
をより一体化すれば特に規定はないが、厚み調整した両面テープの密度が０．９０ｇ／ｃ
ｍ３以上となるよう厚みを調整することが望ましい。
For the adjustment of the paper thickness after the adhesive has been applied, there is a calendar method in which adjustment is performed between two rolls. You may adjust thickness with the press which consists of an upper board and a lower board. If the double-sided tape base paper and the glue are more integrated, there is no particular limitation, but the density of the double-sided tape with adjusted thickness is 0.90 g / c.
It is desirable to adjust the thickness to be m 3 or more.
以下実施例を挙げて本発明を詳細に説明する。 本実施例、比較例における評価は、以下
の方法によった。（１）ろ水度ＪＩＳ Ｐ８１２１に基づき測定した。（２）米坪ＪＩＳ
Ｐ８１２４に基づき測定した。（３）厚さ、密度ＪＩＳ Ｐ ８１１８に基づき測定し
た。
（４）吸水度
ＪＩＳ Ｐ ８１４１に基づき測定した（１０分間）。
（５）引っ張り強度
ＪＩＳ Ｐ８１１３に基づき測定した。
（６）両面テープの粘着力
市販の発泡ＰＰ板（厚さ1ｍｍ）と作製した両面テープを貼り合わせ、プレス機で２０℃
ｘ３分間ｘ０．１ｋＮ／ｃｍ２の条件でプレスした。このサンプルを巾１５ｍｍに裁断し
、テンシロン万能試験機で発泡ＰＰ板との粘着力を測定した。
（７）糊のこり、紙破れ作製した両面テープを用いて市販の硝子板（３ｍｍ厚）と発泡Ｐ
Ｐ板（厚み１ｍｍ）を貼り合わせた。これをプレス機で２０℃ｘ３分間ｘ０．５ｋＮ／ｃ
ｍ２の条件でプレスした。このプレスしたサンプルを恒温恒室器の中に入れ、６０℃ｘ７
０％ＲＨの環境下に５日間置いた。恒温恒室器から取り出し、２０℃ｘ５０％ＲＨの環境
に１日放置した。その後、手で硝子板から両面テープを剥がし、糊のこりと紙破れを目視
評価した。糊のこり、紙破れない場合は○、一部に糊のこり紙破れがあった場合は△、硝
子全面に糊のこりや紙破れがあった場合Ｘとした。発泡ＰＰ板側も同様な方法で評価した
。
Hereinafter, the present invention will be described in detail with reference to examples. Evaluation in this example and the comparative example was based on the following method. (1) Freeness was measured based on JIS P8121. (2) US tsubo JIS
Measured based on P8124. (3) Thickness and density Measured based on JIS P 8118.
(4) Water absorption Measured based on JIS P 8141 (10 minutes).
(5) Tensile strength Measured based on JIS P8113.
(6) Adhesive strength of double-sided tape A commercially available foamed PP plate (thickness 1 mm) and a produced double-sided tape were bonded together, and the press machine was 20 ° C.
The pressing was performed under the conditions of x0.1 kN / cm 2 for x3 minutes. This sample was cut into a width of 15 mm, and the adhesive force with the foamed PP plate was measured with a Tensilon universal testing machine.
(7) Paste glass, commercially available glass plate (thickness 3 mm) and foamed P using double-sided tape made by tearing paper
A P plate (thickness 1 mm) was bonded. This is press machine at 20 ° C x 3 minutes x 0.5kN / c
It was pressed under the conditions of m 2. Place the pressed sample in a thermostatic chamber and store at 60 ° C x 7
It was placed in an environment of 0% RH for 5 days. It was taken out from the thermostatic chamber and left in an environment of 20 ° C. × 50% RH for one day. Thereafter, the double-sided tape was peeled off from the glass plate by hand, and the glue residue and paper breakage were visually evaluated. It was marked as ◯ when glue paste or paper was not torn, △ when glue paste paper was partially broken, and X when glue residue or paper was broken all over the glass. The foamed PP plate side was also evaluated by the same method.
（実施例１） 針葉樹樹晒しクラフトパルプ（ＮＢＫＰ）９０重量部と広葉樹晒しクラフ
トパルプ（ＬＢＫＰ）１０重量部を混合しダブルディスクリファイナーで叩解し、６５０
ｍｌＣＳＦとした。これに湿潤紙力剤：ポリアクリルアミドエピクロロヒドリン１重量部
、ＣＭＣ０．５重量部、カチオンデンプン０．５重量部を添加して、原料とした。これを
長網抄紙機で４５ｇ／ｍ２で抄造して両面テープ用原紙を得た。
(Example 1) 90 parts by weight of softwood bleached kraft pulp (NBKP) and 10 parts by weight of hardwood bleached kraft pulp (LBKP) were mixed and beaten with a double disc refiner, 650
It was set as mlCSF. A wet paper strength agent: 1 part by weight of polyacrylamide epichlorohydrin, 0.5 part by weight of CMC, and 0.5 part by weight of cationic starch were added to obtain a raw material. This was made with a long paper machine at 45 g / m 2 to obtain a double-sided tape base paper.
（実施例２）針葉樹樹晒しクラフトパルプ（ＮＢＫＰ）１００重量部をダブルディスクリ
ファイナーで叩解し、６４４ｍｌＣＳＦとした。これに湿潤紙力剤：ポリアクリルアミド
エピクロロヒドリン１重量部、ＣＭＣ０．５重量部を添加して、原料とした。これを長網
抄紙機で５３ｇ／ｍ２で抄造して両面テープ用原紙を得た。
(Example 2) Softwood tree bleached kraft pulp (NBKP) 100 parts by weight was beaten with a double disc refiner to make 644 ml CSF. A wet paper strength agent: 1 part by weight of polyacrylamide epichlorohydrin and 0.5 part by weight of CMC were added to obtain a raw material. This was made at 53 g / m 2 with a long paper machine to obtain a base paper for double-sided tape.
（実施例３）実施例２と同じ方法で米坪を２８ｇ／ｍ２で抄造して両面テープ用原紙を得
た。
(Example 3) In the same manner as in Example 2, paper basis was made at 28 g / m 2 to obtain a base paper for double-sided tape.
（比較例１）針葉樹樹晒し亜硫酸パルプ（ＮＢＳＰ）５０重量部と広葉樹晒し亜硫酸パル
プ（ＬＢＳＰ）５０重量部を混合しダブルディスクリファイナーで叩解し、６５６ｍｌＣ
ＳＦとした。これに湿潤紙力剤：ポリアクリルアミドエピクロロヒドリン１重量部、ＣＭ
Ｃ０．５重量部を添加して、原料とした。これを長網抄紙機で４２ｇ／ｍ２で抄造して原
紙を得た。
(Comparative example 1) 50 parts by weight of softwood bleached sulfite pulp (NBSP) and 50 parts by weight of hardwood bleached sulfite pulp (LBSP) were mixed and beaten with a double disc refiner, 656 ml C
It was set as SF. Wet paper strength agent: 1 part by weight of polyacrylamide epichlorohydrin, CM
0.5 parts by weight of C was added to obtain a raw material. This was made at 42 g / m 2 with a long paper machine to obtain a base paper.
（比較例２）ＰＥＴ繊維１００％で製造された市販の湿式不織布の目付１２ｇ／ｍ２を比
較例２とした。
(Comparative example 2) The basis weight 12g / m < 2 > of the commercially available wet nonwoven fabric manufactured by 100% of PET fiber was made into the comparative example 2.
（比較例３）ＰＥＴ繊維１００％で製造された市販の湿式不織布の目付６２ｇ／ｍ２を比
較例３とした。
(Comparative Example 3) A commercially available wet nonwoven fabric made of 100% PET fiber was used as Comparative Example 3 with a basis weight of 62 g / m 2 .
（比較例４）麻パルプ７０重量部と針葉樹晒しクラフトパルプ（ＮＢＫＰ）３０重量部を
混合しダブルディスクリファイナーで叩解し、６０７ｍｌＣＳＦとした。これに湿潤紙力
剤：ポリアクリルアミドエピクロロヒドリン１重量部、ＣＭＣ０．５重量部を添加して、
原料とした。これを、円網抄紙機で４０ｇ／ｍ２で抄造して原紙を得た。
(Comparative Example 4) 70 parts by weight of hemp pulp and 30 parts by weight of bleached softwood kraft pulp (NBKP) were mixed and beaten with a double disc refiner to obtain 607 ml CSF. Add wet paper strength agent: 1 part by weight of polyacrylamide epichlorohydrin and 0.5 part by weight of CMC to this,
Used as raw material. This was made at 40 g / m 2 with a circular net paper machine to obtain a base paper.
（実施例４） 離型紙（ＴＰＸラミ紙）にアクリル系粘着剤（水系エマルジョン、ＤＩＣ
製ボンコートＷ−５６９）９９重量部／イソシアネート系架橋剤（ＤＩＣ製、ＣＲ−６０
Ｎ）１重量部を混ぜた塗工液をワイヤーバーで塗工し、実施例１で作製した両面テープ用
原紙と貼り合わせた。テープ原紙／粘着剤塗工液／離型紙からなるラミ紙を熱風乾燥機に
入れ、１２０℃ｘ１分間乾燥した。乾燥後、テープ原紙の粘着剤が塗られていない面に更
に前記の粘着剤塗工液をワイヤーバーで塗工し、１２０℃ｘ１分乾燥した。乾燥したラミ
紙の上に離型紙を貼り合わせ、テストキャレンダーで圧密処理をして両面テープを得た。
(Example 4) Acrylic adhesive (aqueous emulsion, DIC) on release paper (TPX laminated paper)
Boncoat W-569) 99 parts by weight / isocyanate-based crosslinking agent (manufactured by DIC, CR-60
N) The coating liquid mixed with 1 part by weight was coated with a wire bar and bonded to the double-sided tape base paper prepared in Example 1. Laminated paper composed of tape base paper / adhesive coating solution / release paper was put into a hot air dryer and dried at 120 ° C. for 1 minute. After drying, the pressure-sensitive adhesive coating solution was further coated with a wire bar on the surface of the tape base paper on which the pressure-sensitive adhesive was not applied, and dried at 120 ° C. for 1 minute. A release paper was pasted onto the dried laminated paper, and a double-sided tape was obtained by performing a consolidation treatment with a test calender.
（実施例５）実施例２の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Example 5) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Example 2 was used.
（実施例６）実施例３の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Example 6) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Example 3 was used.
（比較例５）比較例１の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Comparative Example 5) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Comparative Example 1 was used.
（比較例６）比較例２の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Comparative Example 6) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Comparative Example 2 was used.
（比較例７）比較例３の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Comparative Example 7) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Comparative Example 3 was used.
（比較例８）比較例４の両面テープ用原紙を用いたほかは、実施例４と同じ方法で両面テ
ープを得た。
(Comparative Example 8) A double-sided tape was obtained in the same manner as in Example 4 except that the base paper for double-sided tape of Comparative Example 4 was used.
（表１）
両面テープ用原紙の物性表
Physical properties of base paper for double-sided tape
（表２）
両面テープの物性表
Physical properties of double-sided tape
以上本発明によると、家電の部品固定用に使われる両面テープにおいて、リサイクルする
ための解体時に両面テープが破れることなく、また糊残りすることなく容易に剥がせるこ
とにより、家電の解体作業を効率的に行うことができる。
As described above, according to the present invention, in the double-sided tape used for fixing home appliance parts, the double-sided tape can be easily peeled off without tearing or leaving no adhesive when disassembling for recycling. Can be done automatically.
Claims (2)
Priority Applications (1)
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|---|---|---|---|
| JP2009064039A JP5290011B2 (en) | 2009-03-17 | 2009-03-17 | Double-sided tape base paper and double-sided tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009064039A JP5290011B2 (en) | 2009-03-17 | 2009-03-17 | Double-sided tape base paper and double-sided tape |
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| JP2010216035A JP2010216035A (en) | 2010-09-30 |
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| JP6264735B2 (en) * | 2013-03-14 | 2018-01-24 | 王子ホールディングス株式会社 | Adhesive tape base paper |
| CN114606799B (en) * | 2022-03-17 | 2023-07-04 | 浙江凯恩新材料有限公司 | High-performance base paper of paper-mixing adhesive tape, production method and paper-mixing adhesive tape using base paper |
| KR102504030B1 (en) * | 2022-08-31 | 2023-02-27 | 황용민 | Water soluble adhesive tape capable of splicing |
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