JPH09272851A - Adhesive composition for confidential letter and confidential letter coated with the composition - Google Patents
Adhesive composition for confidential letter and confidential letter coated with the compositionInfo
- Publication number
- JPH09272851A JPH09272851A JP10635596A JP10635596A JPH09272851A JP H09272851 A JPH09272851 A JP H09272851A JP 10635596 A JP10635596 A JP 10635596A JP 10635596 A JP10635596 A JP 10635596A JP H09272851 A JPH09272851 A JP H09272851A
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- JP
- Japan
- Prior art keywords
- adhesive
- confidential
- weight
- parts
- inorganic filler
- 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.)
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- Adhesives Or Adhesive Processes (AREA)
- Credit Cards Or The Like (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は新規な親展通信書類
代表的には親展葉書用接着剤組成物及びそれを塗布して
なる、加圧により一時的に接着し、必要時に容易に剥離
できる親展通信書類（以下単に親展葉書という）に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel confidential communication document, typically an adhesive composition for confidential postcards, and a confidential composition which is obtained by applying the adhesive composition and which can be temporarily adhered by pressure and easily peeled off when necessary. It relates to correspondence documents (hereinafter simply referred to as confidential postcards).
【０００２】[0002]
【従来の技術】近年、郵政法の改正に伴い、封書より郵
便料金が安く、しかも封書と同様の親展性を有する親展
葉書システムが実用化され、普及しはじめている。この
親展葉書システムは、例えば個人的用件、あるいはプリ
ント情報、印刷情報、他人に知られると不都合な各種情
報等の各種情報を、印字あるいは印刷した葉書を折り畳
み、各種情報面を重ね合わせて接着し、情報を隠蔽状態
にして通常の葉書のように郵送し、受け取った宛名人が
重ね合わせ接着面を剥離して表示された隠蔽情報を読み
取るシステムである。2. Description of the Related Art In recent years, with the revision of the Postal Law, a postcard system that has a lower postage rate than a sealed letter and has the same confidentiality as a sealed letter has been put into practical use and has begun to spread. This confidential postcard system prints or folds various information such as personal information or print information, print information, and various information that is inconvenient for others to know, and folds the postcards and overlaps them with various information surfaces. In this system, the information is concealed and mailed like a normal postcard, and the addressee who receives the information peels off the adhesive surface of the superposed sheets and reads the concealed information displayed.
【０００３】このような親展葉書システムに於いては、
発信人が通信欄に情報を記入したのち、他の人に情報が
漏れることなく、一旦これを隠蔽し、受取人が受領後、
再びこれを開封しなければならないため、剥離可能な接
着を行うことが必要である。しかも、葉書の受取人以外
の人が親展葉書を剥離して情報を読んだ後に再接合し
て、盗み見の証拠を撲滅しようとしても、特殊な加圧装
置を用いない限り再接着が不可能であることが必要であ
る。In such a confidential postcard system,
After the sender has entered the information in the communication field, the information will not be leaked to other people and will be hidden, and after the recipient receives it,
Since it has to be opened again, it is necessary to make a peelable bond. Moreover, even if a person other than the recipient of the postcard peels off the confidential postcard, reads the information, and then rejoins it to eradicate the evidence of the prying eyes, it cannot be reattached unless a special pressure device is used. It is necessary to be.
【０００４】このような親展葉書システムにおいては、
隠蔽情報表示面を剥離可能に接着することが必要である
が、従来のこの種接着方式としては、剥離可能に接合し
た２枚の透明フィルムの積層体の片面に接着剤層を設
け、剥離紙でこの接着剤層を被覆したものを隠蔽側紙片
に粘着し、隠蔽情報表示部に所望の情報を印字あるいは
印刷後、剥離紙を除去して前記述隠蔽側紙片を隠蔽情報
表示部側に重ね合わせて接着し、受領した宛名人は、２
枚の透明フィルムの接合面を剥離して、透明フィルムを
透して隠蔽情報を読み取る方式のものが知られている。In such a confidential postcard system,
It is necessary to releasably bond the concealment information display surface, but the conventional adhesive bonding method of this type is to provide an adhesive layer on one surface of a laminate of two transparent films releasably bonded together to form a release paper. Then, apply the adhesive layer coated to the concealment side paper piece, print the desired information on the concealment information display section or after printing, remove the release paper and put the concealment side paper piece on the concealment information display section side. The addressee who glued together and received is 2
A method is known in which the bonded surface of a sheet of transparent film is peeled off and the concealed information is read through the transparent film.
【０００５】また、特開平５−６９６８７や特開平７−
１８７２にみられるごとく情報単体シートに感圧性接着
剤を塗布し、情報印字、加圧接着後の剥離が容易で隠蔽
情報を読み取る方式のものも知られている。Further, Japanese Patent Application Laid-Open Nos. 5-69687 and 7-
As shown in 1872, there is also known a system in which a pressure sensitive adhesive is applied to a single information sheet, information is printed, and peeling after pressure bonding is easy, and concealed information is read.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、従来の
剥離可能に接合した２枚の透明フィルムの積層体を用い
た方式では、この積層体がコスト高にならざるを得ない
うえに、使用に際しては、剥離紙を除去しなければなら
ないという欠点がある。However, in the conventional method using a laminate of two transparent films that are releasably joined together, this laminate is inevitably costly, and at the time of use. The disadvantage is that the release paper has to be removed.
【０００７】一方、特開平５−６９６８７や特開平７−
１８７２にみられるごとく、感圧性接着剤を塗布する方
法では、この感圧性接着剤中にロジン、テルペン系粘着
付与剤を含有するため、これ等の接着剤は粘着剤として
作用し、このため接着剤塗布面同志を貼り合わすと、い
ったん接着した後に接着部分を剥離することができず、
部分的な接着や感圧性接着剤塗布面に対し非剥離性接着
剤塗布面を別途に設ける手段をとらざるをえない欠点が
ある。On the other hand, JP-A-5-69687 and JP-A-7-
1872, in the method of applying a pressure sensitive adhesive, since these pressure sensitive adhesives contain a rosin and a terpene-based tackifier, these adhesives act as a pressure sensitive adhesive, and thus If the agent-coated surfaces are pasted together, the bonded part cannot be peeled off once it has been bonded,
There is a drawback that a means for separately providing a non-peeling adhesive application surface with respect to a partial adhesion or pressure-sensitive adhesive application surface must be taken.
【０００８】本発明は、このような従来例における欠点
を解消し、下記の如き特性を有する親展葉書用接着剤組
成物を提供することを目的とする。 接着剤塗布品が在庫中にブロッキングを生じないこ
と。 接着剤塗布面への印字適性に優れること。 加圧による安定した接着力を有すること。 接着後の親展葉書を容易に剥離できること。 剥離後もブロッキングを生じないこと。An object of the present invention is to solve the above drawbacks of the prior art and to provide an adhesive composition for a postcard having the following characteristics. Adhesive coated products should not block in inventory. Excellent printability on the adhesive coated surface. Must have a stable adhesive force by pressure. Being able to easily peel off the confidential postcard after adhesion. No blocking occurs after peeling.
【０００９】[0009]
【課題を解決するための手段】本発明者は、ポリクロロ
プレンラテックス（樹脂分）１００重量部と多孔質無機
充填剤粉末１０〜１００重量部とからなる接着剤組成物
を、親展葉書用接着剤として使用した場合に、所望の親
展葉書が得られることを見出した。本発明はかかる新し
い知見に基づき完成されたものである。The present inventor has developed an adhesive composition comprising 100 parts by weight of polychloroprene latex (resin content) and 10 to 100 parts by weight of a porous inorganic filler powder as an adhesive for a postcard. It was found that the desired confidential postcard was obtained when used as. The present invention has been completed based on this new finding.
【００１０】[0010]
【発明の実施の形態】本発明の親展通信用書類には葉書
は勿論のこと、その他折り畳みカード、重ね合わせカー
ド、情報隠蔽シート等の各種通信用書類乃至シートを含
む。BEST MODE FOR CARRYING OUT THE INVENTION The confidential communication documents of the present invention include not only postcards but also various communication documents or sheets such as folding cards, stacking cards, and information hiding sheets.
【００１１】以下、本発明を更に詳しく説明する。本発
明に用いるポリクロロプレン系ラテックスは、ポリクロ
ロプレンラテックス、又は（及び）変性ポリクロロプレ
ンラテックスである。The present invention will be described in more detail below. The polychloroprene latex used in the present invention is a polychloroprene latex or / and a modified polychloroprene latex.
【００１２】変性ポリクロロプレンラテックスはクロロ
プレンとビニルモノマーとの共重合ラテックスあるい
は、ポリクロロプレンラテックスとビニル重合体ラテッ
クスの混合物であり、特に、ポリクロロプレンの成分が
６０重量％以上含有する共重合体系ラテックスが好まし
い。The modified polychloroprene latex is a copolymer latex of chloroprene and vinyl monomer or a mixture of polychloroprene latex and vinyl polymer latex, and in particular, a copolymer latex having a polychloroprene component content of 60% by weight or more is used. preferable.
【００１３】クロロプレン以外のビニルモノマーは、ス
チレン、アクリル酸エステル、メタクリル酸エステル、
アクリル酸、メタクリル酸、マレイン酸エステル、酢酸
ビニル、エチレン、塩化ビニル、ブタジエン等が単体ま
たは２種以上で用いることができる。Vinyl monomers other than chloroprene include styrene, acrylic acid ester, methacrylic acid ester,
Acrylic acid, methacrylic acid, maleic acid ester, vinyl acetate, ethylene, vinyl chloride, butadiene and the like can be used alone or in combination of two or more.
【００１４】本発明に於いては、ポリクロロプレンのガ
ラス転移温度（Ｔｇ）は０〜−９５℃のものが好まし
く、特に−２５〜−８０℃のものが好ましい。In the present invention, the glass transition temperature (Tg) of polychloroprene is preferably 0 to -95 ° C, particularly preferably -25 to -80 ° C.
【００１５】Ｔｇが、−９５℃未満の場合は、乾燥後の
フィルムの粘着性が大きく、耐ブロッキング性に劣る。
また、Ｔｇが、０℃より高い場合は、乾燥後の接着剤塗
布物同志の加圧接着に欠ける。If the Tg is less than -95 ° C, the tackiness of the film after drying is large and the blocking resistance is poor.
Further, when Tg is higher than 0 ° C., the pressure-sensitive adhesive bonding between the dried adhesive coating products is insufficient.
【００１６】このポリクロロプレン系ラテックスの濃度
は通常３０〜６０％である。The concentration of the polychloroprene latex is usually 30 to 60%.
【００１７】本発明に用いる多孔質無機充填剤粉末は多
孔質の超微粉珪酸、含水微粉珪酸、珪藻土、含水珪酸ア
ルミニウム、無水珪酸アルミニウム、珪酸ジルコニウ
ム、含水珪酸マグネシウム、ゼオライト等の多孔質無機
充填剤粉末を代表例として挙げることができ、特に珪酸
が好ましい。The porous inorganic filler powder used in the present invention is a porous inorganic filler such as porous ultrafine silicic acid, hydrous fine silicic acid, diatomaceous earth, hydrous aluminum silicate, anhydrous aluminum silicate, zirconium silicate, hydrous magnesium silicate and zeolite. A powder can be mentioned as a typical example, and silicic acid is particularly preferable.
【００１８】これら多孔質無機充填剤粉末の平均粒子径
は１０μｍ以下のものが接着性、剥離性の点で好まし
い。特に多孔質無機充填剤粉末の中で、平均粒子径が１
〜１０μｍの多孔質超微粉珪酸が、印字適性、接着性、
剥離性、ブロッキング性の面で優れる。The average particle size of these porous inorganic filler powders is preferably 10 μm or less in terms of adhesiveness and peeling property. Especially in the porous inorganic filler powder, the average particle size is 1
Porous ultrafine silicic acid of 10 μm has good printability, adhesiveness,
Excellent in peeling property and blocking property.
【００１９】本発明に於けるポリクロロプレン系ラテッ
クスと多孔質無機充填剤粉末との割合はポリクロロプレ
ン系ラテックスの樹脂分１００重量部に対して多孔質無
機充填剤粉末１０〜１００重量部、特に２０〜８０重量
部が好ましい。The ratio of the polychloroprene latex to the porous inorganic filler powder in the present invention is 10 to 100 parts by weight, particularly 20 to 100 parts by weight of the resin component of the polychloroprene latex. -80 parts by weight is preferred.
【００２０】この際、多孔質無機充填剤粉末が１０重量
部未満では、インクの印字適性に欠け、剥離性も低下す
る傾向がある。逆に多孔質無機充填剤粉末が１００重量
部を超えると、接着力が低下する傾向がある。At this time, if the amount of the porous inorganic filler powder is less than 10 parts by weight, the ink is not suitable for printing and the releasability tends to decrease. On the other hand, if the amount of the porous inorganic filler powder exceeds 100 parts by weight, the adhesive force tends to decrease.
【００２１】本発明の親展葉書用接着剤組成物には安定
化剤を５重量％以内の量で添加することができ、これに
より、接着剤組成物の乾燥フィルムの熱的、光的劣化を
防止し、接着剤の経時安定性を増し、接着剥離性をより
効果的に発揮する。A stabilizer may be added to the adhesive composition for confidential postcards of the present invention in an amount of 5% by weight or less, whereby thermal and photodegradation of a dry film of the adhesive composition is prevented. It improves the stability of the adhesive with the passage of time and more effectively exhibits the adhesive peeling property.
【００２２】安定化剤は、ベンゾフェノン系、ベンゾト
リアゾール系、蓚酸アニリド系、シアノアクリレート
系、トリアジン系等の紫外線吸収剤や、ピペロジン環を
有する化合物であるＨＡＬＳ（日本チバガイギー製品）
等の光安定剤を単独または併用することができる。The stabilizer is a benzophenone-based, benzotriazole-based, oxalic acid anilide-based, cyanoacrylate-based, triazine-based ultraviolet absorber, or a compound having a piperazine ring, HALS (Nippon Ciba-Geigy product).
These light stabilizers can be used alone or in combination.
【００２３】本発明の接着剤組成物には、必要に応じて
一般に接着剤の分野で使用されている各種添加剤、例え
ば増粘剤、水溶性高分子、粘着付与剤、消泡剤、防腐
剤、潤滑剤、老化防止剤、可塑剤、架橋剤、充填剤等を
添加することができる。In the adhesive composition of the present invention, if necessary, various additives generally used in the adhesive field, such as a thickener, a water-soluble polymer, a tackifier, a defoaming agent, and an antiseptic agent are added. Agents, lubricants, antioxidants, plasticizers, crosslinking agents, fillers and the like can be added.
【００２４】本発明の接着剤組成物は、ポリクロロプレ
ンラテックスと多孔質無機充填剤粉末、更に必要に応じ
光安定化剤やその他の添加剤から成っているが、これを
使用するに際しては、使用する条件、例えば葉書の種
類、温度、湿度、印刷方式、塗布手段等に合わせて適宜
にその粘度を調整して使用することが好ましい。通常の
場合は１０〜１，０００ｍＰａ・ｓ（ａｔ３０℃）程度
で使用するのが好ましい。The adhesive composition of the present invention comprises a polychloroprene latex, a porous inorganic filler powder and, if necessary, a light stabilizer and other additives. It is preferable to adjust the viscosity according to the conditions to be applied, for example, the type of postcard, temperature, humidity, printing method, coating means, etc. before use. In the usual case, it is preferable to use at 10 to 1,000 mPa · s (at 30 ° C.).
【００２５】本発明の親展葉書用接着剤の塗布量は、接
着性、剥離性の点から、乾燥塗布量で１〜１０ｇ／ｍ2
が好ましい。この乾燥塗布量が１ｇ／ｍ2未満では、感
圧接着性に欠けやすく、１０ｇ／ｍ2を超えと剥離性に
欠けやすい。From the viewpoint of adhesiveness and releasability, the coating amount of the confidential postcard adhesive of the present invention is 1 to 10 g / m 2 as a dry coating amount.
Is preferred. If this dry coating amount is less than 1 g / m 2 , pressure-sensitive adhesiveness tends to be impaired, and if it exceeds 10 g / m 2 , releasability tends to be impaired.
【００２６】また、塗布方法は、フレキソ、グラビア、
リバースロール、エアナイフ等の公知の接着剤塗布方法
で行うことができる。The coating method is flexo, gravure,
It can be performed by a known adhesive application method such as a reverse roll or an air knife.
【００２７】本発明の接着剤組成物を用いて、情報を隠
蔽する際の加圧は通常３０〜１５０ｋｇ／ｃｍ2程度、
好ましくは４０〜１００ｋｇ／ｃｍ2程度である。The pressure for masking information using the adhesive composition of the present invention is usually about 30 to 150 kg / cm 2 ,
It is preferably about 40 to 100 kg / cm 2 .
【００２８】本発明に用いられる親展葉書用用紙として
は、例えば上質紙、合成紙、コート紙、ラミネート紙金
属蒸着紙等が使用でき、葉書として使用できるものであ
り、特にこだわるものではない。As the confidential postcard paper used in the present invention, for example, high-quality paper, synthetic paper, coated paper, laminated paper metal vapor-deposited paper, etc. can be used, and it can be used as a postcard and is not particularly limited.
【００２９】この親展葉書の印刷は、親展葉書の表及び
裏に行われるが、印刷を行うときは、親展葉書用接着剤
を塗布する前、接着剤を塗布乾燥後等いずれでもよい。The printing of the confidential postcard is performed on the front and back of the confidential postcard, but the printing may be performed before applying the adhesive for the confidential postcard, after applying the adhesive, and after drying.
【００３０】また、印刷及び印字方法は、凸版、オフセ
ット、グラビア、フレキソ、スクリーン、電子写真法、
レーザーコピー法、インクジェット法、熱転写法等公知
の方法で印刷できる。また、手書きで行っても何ら支障
がないことはもちろんのことである。Printing and printing methods include letterpress, offset, gravure, flexo, screen, electrophotographic method,
Printing can be performed by a known method such as a laser copy method, an inkjet method, or a thermal transfer method. Moreover, it goes without saying that there is no problem even if it is done by handwriting.
【００３１】[0031]
【実施例】以下に実施例を示して具体的に説明するが、
本発明はこれらの実施例によって限定されるものではな
い。[Examples] Specific examples will be described below.
The present invention is not limited by these examples.
【００３２】[0032]
【実施例１〜３】樹脂分５０％のポリクロロプレンラテ
ックス（Ｔｇ＝−４５℃）１００重量部、超微粉末珪酸
である「ミズシカルＰ−７８Ａ」（水沢化学（株）製，
平均粒径：３μｍ）をそれぞれ１０、２０、３０重量部
を添加混合し、接着剤Ａ、Ｂ、Ｃを得た。これ等の接着
剤Ａ、Ｂ、Ｃを３ｇ／ｍ2（乾燥重量）で塗布し、乾燥
した親展葉書１、２、３のブロッキング性、印刷適性、
感圧接着性、再剥離性の評価を表１に示した。[Examples 1 to 3] 100 parts by weight of polychloroprene latex (Tg = -45 ° C) having a resin content of 50%, "Mizushikaru P-78A" (manufactured by Mizusawa Chemical Co., Ltd.), which is ultrafine powdered silicic acid.
Adhesives A, B and C were obtained by adding and mixing 10, 20 and 30 parts by weight of (average particle diameter: 3 μm), respectively. These adhesives A, B, and C were applied at 3 g / m 2 (dry weight), and the dried postcards 1, 2, and 3 had blocking properties, printability, and
Table 1 shows the evaluation of pressure-sensitive adhesiveness and removability.
【００３３】[0033]
【実施例４】樹脂分５０％のポリクロロプレンラテック
ス（Ｔｇ＝−４５℃）９０重量部と樹脂分５０％のスチ
レン−アクリル酸ブチル共重合体ラテックス（Ｔｇ＝２
３℃）１０重量部とをブレンドした変性ポリクロロプレ
ンラテックス１００重量部、「ミズシカルＰ−７８Ａ」
を２０重量部及び無水珪酸アルミニウム５重量部、酸化
チタン２重量部を添加混合し、接着剤Ｄを得た。この接
着剤Ｄを８ｇ／ｍ2で塗布し、乾燥した親展葉書４の評
価を表１に示した。Example 4 90 parts by weight of polychloroprene latex (Tg = -45 ° C.) having a resin content of 50% and styrene-butyl acrylate copolymer latex (Tg = 2) having a resin content of 50%.
100 parts by weight of modified polychloroprene latex blended with 10 parts by weight of 3 ° C., “Mizushikaru P-78A”
20 parts by weight, 5 parts by weight of anhydrous aluminum silicate and 2 parts by weight of titanium oxide were added and mixed to obtain an adhesive D. This adhesive D was applied at 8 g / m 2 and the evaluation of the postcard 4 dried was shown in Table 1.
【００３４】[0034]
【実施例５〜６】樹脂分５０％のポリクロロプレンラテ
ックス（Ｔｇ＝−４５℃）１００重量部、「ミズシカル
Ｐ−７８Ａ」を２０重量部の混合液にベンゾトリアゾー
ル系紫外線吸収剤２重量部または光安定剤（ＨＡＬＳ
（日本チバガイキ製））３重量部を添加混合し、接着剤
Ｅ、Ｆを得た。この接着剤Ｅ、Ｆを５ｇ／ｍ2で塗布
し、乾燥した親展葉書５、６の評価を表１に示した。Examples 5 to 6 100 parts by weight of polychloroprene latex (Tg = -45 ° C) having a resin content of 50% and 20 parts by weight of "Mizushikaru P-78A" were mixed in a mixed solution of 2 parts by weight of a benzotriazole type ultraviolet absorber or Light stabilizer (HALS
Adhesives E and F were obtained by adding and mixing 3 parts by weight (manufactured by Japan Ciba Gaiki). Tables 1 and 2 show the evaluation results of the confidential postcards 5 and 6 obtained by applying the adhesives E and F at 5 g / m 2 .
【００３５】[0035]
【比較例１】樹脂分６０％の天然ラテックス１００重量
部、炭酸カルシウム３０重量部を添加混合し、接着剤Ｇ
を得た。この接着剤Ｇを５ｇ／ｍ2（乾燥重量）で塗布
し、乾燥した親展葉書７の評価を表２に示した。[Comparative Example 1] 100 parts by weight of natural latex having a resin content of 60% and 30 parts by weight of calcium carbonate were added and mixed to obtain an adhesive G.
I got This adhesive G was applied at 5 g / m 2 (dry weight) and the evaluation of the postcard 7 dried was shown in Table 2.
【００３６】[0036]
【比較例２】比較例１の炭酸カルシウム３０重量部に変
えて、「ミズシカルＰ−７８Ａ」３０重量部を用いた接
着剤Ｈを５ｇ／ｍ2（乾燥重量）で塗布し、乾燥した親
展葉書８の評価を表２に示した。[Comparative Example 2] instead of the 30 parts by weight of calcium carbonate of Comparative Example 1 was applied to "Mizushikaru P-78A" 30 parts by weight adhesive H using at 5 g / m 2 (dry weight), dried confidential postcard The evaluation of 8 is shown in Table 2.
【００３７】[0037]
【比較例３】樹脂分５０％のポリクロロプレンラテック
ス（Ｔｇ＝−４５℃）１００重量部、炭酸カルシウム２
０重量部を添加混合し、接着剤Ｉを得た。この接着剤Ｉ
を３ｇ／ｍ2（乾燥重量）で塗布し、乾燥した親展葉書
９の評価を表２に示した。Comparative Example 3 100 parts by weight of polychloroprene latex (Tg = -45 ° C.) having a resin content of 50%, calcium carbonate 2
An adhesive I was obtained by adding and mixing 0 parts by weight. This adhesive I
Was applied at 3 g / m 2 (dry weight), and the evaluation of the dried postcard 9 is shown in Table 2.
【００３８】[0038]
【比較例４】樹脂分５０％のポリクロロプレンラテック
ス（Ｔｇ＝−４５℃）１００重量部、「ミズシカルＰ−
７８Ａ」６０重量部を添加混合し、接着剤Ｊを得た。こ
の接着剤Ｊを３ｇ／ｍ2（乾燥重量）で塗布し、乾燥し
た親展葉書１０の評価を表２に示した。Comparative Example 4 100 parts by weight of polychloroprene latex (Tg = -45 ° C.) having a resin content of 50%, "Mizushiru P-"
Adhesive J was obtained by adding and mixing 60 parts by weight of "78A". This adhesive J was applied at 3 g / m 2 (dry weight), and the evaluation of the dried postcard 10 is shown in Table 2.
【００３９】[0039]
【比較例５】実施例２で使用した接着剤２を１５ｇ／ｍ
2（乾燥重量）で塗布し、乾燥した親展葉書１１の評価
を表２に示した。Comparative Example 5 Adhesive 2 used in Example 2 was 15 g / m
Table 2 shows the evaluation of the confidential postcard 11 which was applied with 2 (dry weight) and dried.
【００４０】[0040]
【表１】 [Table 1]
【００４１】[0041]
【表２】 [Table 2]
【００４２】それぞれの親展葉書の評価は次の通りであ
る。 評価１）ブロッキング性：親展葉書を堆積した後、親展
葉書の状態を観察した。 ◎・・・ブロッキングがなく、親展葉書を１枚ずつスム
ーズにとれる △・・・親展葉書を取るときに抵抗感がある ×・・・親展葉書が破れるThe evaluation of each confidential postcard is as follows. Evaluation 1) Blocking property: After depositing confidential postcards, the state of the confidential postcards was observed. ◎ ・ ・ ・ There is no blocking and you can take each confidential postcard one by one. △ ・ ・ ・ There is a feeling of resistance when taking the confidential postcard. × ・ ・ ・ The confidential postcard is broken.
【００４３】評価２）印刷適性：レーザーコピーで印字
を行い、印字の様態を観察した。 ◎・・・印刷良好 △・・・印刷が一部できない ×・・・印刷ができないEvaluation 2) Printability: Printing was performed by laser copying and the printing state was observed. ◎ ・ ・ ・ Printing is good △ ・ ・ ・ Partial printing is not possible × ・ ・ ・ Printing is not possible
【００４４】評価３）感圧性：親展葉書の接着剤塗布面
同志を８０ｋｇ／ｃｍ2の圧力をかけ、貼り合わせ、接
着性を確認した。 ◎・・・接着良好 ×・・・接着していないEvaluation 3) Pressure Sensitivity: A pressure of 80 kg / cm 2 was applied to the adhesive-coated surfaces of the confidential postcard to bond them, and the adhesiveness was confirmed. ◎ ・ ・ ・ Good adhesion × ・ ・ ・ No adhesion
【００４５】評価４）剥離性：評価３で貼り合わせた親
展葉書を手で剥離を行い、状態を観た。 ◎・・・剥離が良好で、親展葉書の紙の破れ及び印字破
れが生じていない △・・・剥離で紙の破れは生じていないが、一部印字剥
がれが生じている ×・・・剥離で紙が破れる −・・・試験できない（評価３の試験で接着剤していな
い）Evaluation 4) Peelability: The confidential postcards laminated in Evaluation 3 were peeled by hand and the state was observed. ∘: Peeling is good, and there is no tearing of the confidential postcard and tearing of the print. △: No tearing of the paper due to peeling, but some peeling of the print occurs. Tears the paper --- it cannot be tested (adhesive was not used in the evaluation 3 test)
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年７月１０日[Submission date] July 10, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】発明の名称[Correction target item name] Name of invention
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【発明の名称】 親展通信書類用接着剤組成物及びそれ
を塗布した親展通信書類Patent application title: Adhesive composition for confidential communication documents and confidential communication documents coated with the same
Claims (4)
００重量部と多孔質無機充填剤粉末１０〜１００重量部
からなることを特徴とする親展通信書類用接着剤組成
物。1. Polychloroprene latex (resin content) 1
An adhesive composition for confidential communication documents, which comprises 100 parts by weight of porous inorganic filler powder and 100 parts by weight of porous inorganic filler powder.
酸である請求項１に記載の親展通信書類用接着剤組成
物。2. The adhesive composition for confidential communication documents according to claim 1, wherein the porous inorganic filler powder is porous ultrafine silica powder.
に記載の親展通信書類用接着剤組成物。3. A light stabilizer is further contained.
An adhesive composition for confidential communication documents as described in 1.
に、請求項１〜３のいずれかに記載の接着剤組成物を１
〜１０ｇ／ｍ2塗布して成る親展通信用書類。4. The adhesive composition according to any one of claims 1 to 3 is applied to an adhesive surface, which is an information hiding surface of a confidential communication document.
-10 g / m 2 application confidential communication document.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10635596A JPH09272851A (en) | 1996-04-02 | 1996-04-02 | Adhesive composition for confidential letter and confidential letter coated with the composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10635596A JPH09272851A (en) | 1996-04-02 | 1996-04-02 | Adhesive composition for confidential letter and confidential letter coated with the composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09272851A true JPH09272851A (en) | 1997-10-21 |
Family
ID=14431466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10635596A Withdrawn JPH09272851A (en) | 1996-04-02 | 1996-04-02 | Adhesive composition for confidential letter and confidential letter coated with the composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09272851A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001226645A (en) * | 2000-02-18 | 2001-08-21 | Toppan Forms Co Ltd | Ultraviolet hardening-type pressure sensitive adhesive and sheet for pressure-sensitive adhesion printing using the adhesive |
| EP1177054A4 (en) * | 1999-03-19 | 2003-01-08 | Fuller H B Licensing Financ | Method for the preparation of non-blocking adhesive coated articles and cold seal bonded laminates |
| JP2010537011A (en) * | 2007-08-24 | 2010-12-02 | バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト | Low viscosity adhesive polymer aqueous dispersion |
-
1996
- 1996-04-02 JP JP10635596A patent/JPH09272851A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177054A4 (en) * | 1999-03-19 | 2003-01-08 | Fuller H B Licensing Financ | Method for the preparation of non-blocking adhesive coated articles and cold seal bonded laminates |
| US7695809B1 (en) | 1999-03-19 | 2010-04-13 | H. B. Fuller Company | Method for the preparation of non-blocking adhesive coated articles and cold seal bonded laminates |
| JP2001226645A (en) * | 2000-02-18 | 2001-08-21 | Toppan Forms Co Ltd | Ultraviolet hardening-type pressure sensitive adhesive and sheet for pressure-sensitive adhesion printing using the adhesive |
| JP2010537011A (en) * | 2007-08-24 | 2010-12-02 | バイエル・マテリアルサイエンス・アクチェンゲゼルシャフト | Low viscosity adhesive polymer aqueous dispersion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030603 |