JPH0316435B2 - - Google Patents
Info
- Publication number
- JPH0316435B2 JPH0316435B2 JP11197082A JP11197082A JPH0316435B2 JP H0316435 B2 JPH0316435 B2 JP H0316435B2 JP 11197082 A JP11197082 A JP 11197082A JP 11197082 A JP11197082 A JP 11197082A JP H0316435 B2 JPH0316435 B2 JP H0316435B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- heat
- viscose
- fibers
- amount
- 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
- 229920000297 Rayon Polymers 0.000 claims description 40
- 239000000835 fiber Substances 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 15
- 239000004627 regenerated cellulose Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 229920001169 thermoplastic Polymers 0.000 claims description 13
- 239000004416 thermosoftening plastic Substances 0.000 claims description 13
- 230000002209 hydrophobic effect Effects 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 description 55
- 229920002678 cellulose Polymers 0.000 description 13
- 239000001913 cellulose Substances 0.000 description 13
- 239000002585 base Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000000576 coating method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- -1 polyethylene Polymers 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 229920000298 Cellophane Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 240000000907 Musa textilis Species 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000006248 Broussonetia kazinoki Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 240000009253 Morus australis Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Paper (AREA)
Description
本発明はヒートシール性を有するビスコース加
工紙に関する。
従来より、天然パルプや靭皮繊維などの親水性
繊維からなる紙にビスコース加工を施すことによ
つて引張強度、とくに耐水強度が改良されること
は知られており、実用化もされている。たとえば
ケーク精練紙、テイーバツグ原紙、台所用水切り
袋原紙などに用いられている。これらの原紙はい
ずれも袋状で用いられるものであるが、製袋に際
して各種の接着剤を使用しなければならず、作業
性が著しくわるい。
またヒートシール性を有する紙は、ポリエチレ
ン繊維、ポリプロピレン繊維などの熱可塑性繊維
を抄き合せることによつてえられるし、また親水
性繊維からなる紙に熱可塑性樹脂を含浸またはコ
ーテイングすることによつてもえられる。このよ
うなヒートシール性を有する紙の製袋加工はヒー
トシール自動製袋機により容易にかつ効率よく行
なうことができる。しかしながら、このような熱
可塑性繊維からなる紙にビスコース加工を施す
と、熱可塑性繊維を再生セルロース層が覆つてし
まい、ヒートシール性が損われると考えられてい
た。
本発明はかかる現状に鑑みなされたものであ
り、ヒートシール性を兼ね備えたビスコース加工
紙を提供することを目的とするものである。
すなわち本発明は、親水性繊維と疎水性でかつ
ヒートシール性を有する熱可塑性繊維とからなる
混抄紙に、該熱可塑性繊維のヒートシール性が損
われない範囲で再生セルロース層が形成されてな
るヒートシール性を有するビスコース加工紙に関
する。
本発明のヒートシール性を有するビスコース加
工紙は、前記混抄紙の少なくとも一方の面にビス
コース液を塗布あるいは含浸せしめ、乾燥したの
ち凝固浴ついでセルロース再生浴中で処理するこ
とによつてえられる。
本発明においては、塗布または含浸せしめられ
たビスコース液の親水性繊維に対する界面張力と
疎水性の熱可塑性繊維に対する界面張力が異な
り、ビスコース液の粘度や塗布量および塗布、含
浸方法を選ぶことにより、その界面張力の差によ
つて乾燥時にビスコース液が親水性繊維部分に移
動し、疎水性の熱可塑性繊維表面には留まらず、
ヒートシール性は損われない。
ヒートシール性を損わない範囲のセルロース付
着量は、混抄紙の原料、坪量、塗布・含浸方法、
ビスコース加工紙の用途によつて異なるが、充分
なヒートシール性を発揮できるだけの熱可塑性繊
維表面が露出しておればよく、本発明において
は、少なくとも片面における再生セルロースの付
着量がドブ漬法で原紙の２〜30重量％である量に
相当する量である。
本発明に用いる混抄紙は両面にヒートシール性
を有しているが、両面共ヒートシール性を保持さ
せるばあいと片面にのみヒートシール性を保持さ
せるばあいとでは再生セルロースの付着量が異な
る。
両面共ヒートシール性を保持させるばあい、再
生セルロースの付着量は原紙に対して２〜60％
（重量％、以下同様）であるのが好ましい。なお、
この範囲は原紙をビスコース液にドブ漬けしたば
あいの値である。再生セルロースの付着量がこの
範囲にあるときは、ビスコース加工紙の両面に充
分なヒートシール性が保持される。２％未満では
目的とする耐水性や強度の向上が充分でなく、ま
た60％を超えるばあいはヒートシール性が著しく
損なわれ、実用に耐えなくなる。
片面にのみヒートシール性を保持させるばあ
い、他方の面における再生セルロースの付着量は
任意でよい。しかしヒートシール性が要求される
面における再生セルロースの付着量は、前記両面
共ヒートシール性を保持させるばあいの片面の再
生セルロースの付着量程度でよい。
ビスコース液は常法により調製されたものをそ
のまま、あるいは希釈して用いればよい。粘度は
採用する塗布、含浸方法などによつて異なるが、
通常約100〜5000cpsのものが好適である。
本発明に用いる塗布または含浸方法としては、
たとえばロールコーターなどによるコーテイング
法や噴霧法、ハケ塗り法あるいはビスコース液へ
の浸漬法などが採用でき、ビスコース液の粘度や
セルロースの付着量などにより適宜選択すればよ
い。
また、ビスコース加工はシート状の原紙だけで
はなく、筒状に加工されたものにも施すことがで
きる。
本発明における親水性繊維としては、広葉樹パ
ルプ、針葉樹パルプなどの天然パルプ、マニラ
麻、コウゾ、ミツマタなどの靭皮繊維、コツトン
リンター、ビスコースレーヨン、ポリビニルアル
コール繊維などの１種または２種以上が用いられ
うる。
疎水性でかつヒートシール性を有する熱可塑性
繊維としては、ポリエチレン繊維、ポリプロピレ
ン繊維、ポリ塩化ビニル繊維、ポリ塩化ビニリデ
ン繊維、ポリアミド繊維、エチレン−酢酸ビニル
共重合体ポリマー繊維、コンジユゲート繊維など
の１種または２種以上が用いられうる。
混抄紙は親水性繊維20〜80部（重量部、以下同
様）と熱可塑性繊維80〜20部とから構成すること
が好ましい。親水性繊維が20部未満のばあいはビ
スコース加工性がわるく実用に耐えない。熱可塑
性繊維が20部未満のばあいは充分なヒートシール
性がえられず、いずれも好ましくない。
本発明のビスコース加工紙はヒートシール性を
保持したままビスコース加工の特徴である引張強
度、とくに耐水性が著しく向上したものである。
なお、前記のごとく本発明のビスコース加工紙
は少なくとも一方の面がヒートシール性を有して
いればよいので、一方の面のみのヒートシール性
を利用するばあいでは他方の面の再生セルロース
の付着量は何ら制限されない。たとえばヒートシ
ール性が要求されない面に再生セルロースの連続
皮膜を形成したばあい、紙匹にセロハンが有する
耐油性、保香性および適度な透湿性をさらに付与
することができ、有用な包装材料を提供すること
ができる。
つぎに実施例をあげて本発明のビスコース加工
紙を説明する。
実施例 １
針葉樹パルプ30部、マニラ麻パルプ20部および
太さ２デニールで５mm長のポリプロピレン短繊維
50部を原料として用い、短網で抄紙しヤンキード
ライヤーで乾燥して12ｇ／m2の混抄紙をえた。
ついで常法により調製したビスコース液（セル
ロース含量９重量％、全アルカリ濃度６重量％）
をアルカリ液で1/2に希釈して約500cpsのビスコ
ース液を調製した。
このビスコース液中に前記混抄紙を浸漬して含
浸処理を施し、ついでセルロースの付着量が1.5
ｇ／m2となるように過剰のビスコース液を２本ロ
ールによつて絞り取つたのち、非接触型乾燥機を
通過させて乾燥した。
えられたビスコース加工紙をビスコース凝固浴
（H2SO414％、Na2SO415％）中で処理し、つづ
いてセルロース再生浴（H2SO45％、Na2SO42
％）中でセルロースを再生した。ついで脱硫水洗
したのちグリセリン浴中で柔軟処理し乾燥して本
発明のヒートシール性を有する耐水紙をえた。
えられた本発明のビスコース加工紙および原紙
の引張強さおよびヒートシール強度を測定した。
結果を第１表に示す。
なお、各試験はつぎのようにして行なつた。
引張強さ
標準状態：JIS Ｐ 8113の「紙および板紙の引
張強さ試験方法」に準じて測定した。
耐熱水性：JIS Ｐ 8135の「紙および板紙の湿
潤引張強さ試験方法」に準じて測定した。
ただし、浸漬は沸騰水中で15分間行なつ
た。
ヒートシール強度
JIS Ｚ 1521の「セロハンの熱接着強さ」に準
じて測定した。
The present invention relates to a viscose processed paper having heat sealability. It has long been known that tensile strength, especially water resistance, can be improved by applying viscose processing to paper made of hydrophilic fibers such as natural pulp and bast fibers, and this has also been put to practical use. . For example, it is used for cake scouring paper, T-bag base paper, kitchen drainer bag base paper, etc. All of these base papers are used in the form of bags, but various adhesives must be used during bag making, resulting in extremely poor workability. Paper with heat-sealing properties can be obtained by combining thermoplastic fibers such as polyethylene fibers and polypropylene fibers, or by impregnating or coating paper made of hydrophilic fibers with a thermoplastic resin. You can get it. Bag-making processing of paper having such heat-sealing properties can be carried out easily and efficiently using an automatic heat-sealing bag-making machine. However, it has been thought that when paper made of such thermoplastic fibers is subjected to viscose processing, the thermoplastic fibers are covered with a regenerated cellulose layer, impairing heat sealability. The present invention was made in view of the current situation, and it is an object of the present invention to provide a viscose processed paper that also has heat sealability. That is, the present invention is a mixed paper made of hydrophilic fibers and thermoplastic fibers that are hydrophobic and have heat-sealability, and a regenerated cellulose layer is formed within a range that does not impair the heat-sealability of the thermoplastic fibers. This invention relates to viscose processed paper having heat-sealing properties. The viscose processed paper having heat-sealing properties of the present invention can be produced by coating or impregnating at least one side of the mixed paper with a viscose liquid, drying it, and treating it in a coagulation bath and then a cellulose regeneration bath. It will be done. In the present invention, the interfacial tension of the applied or impregnated viscose liquid with respect to hydrophilic fibers and the interfacial tension with respect to hydrophobic thermoplastic fibers are different, and it is important to select the viscosity of the viscose liquid, the amount of application, and the application and impregnation method. Due to the difference in interfacial tension, the viscose liquid moves to the hydrophilic fiber portion during drying, and does not remain on the hydrophobic thermoplastic fiber surface.
Heat sealability is not impaired. The amount of cellulose deposited within a range that does not impair heat sealability depends on the raw material of the mixed paper, basis weight, coating/impregnation method,
Although it differs depending on the use of the viscose-processed paper, it is sufficient that the surface of the thermoplastic fibers is exposed enough to exhibit sufficient heat-sealing properties. The amount corresponds to 2 to 30% by weight of the base paper. The mixed paper used in the present invention has heat-sealability on both sides, but the amount of regenerated cellulose adhered to differs depending on whether both sides retain heat-sealability or only one side retains heat-sealability. . When maintaining heat sealability on both sides, the amount of regenerated cellulose adhered to the base paper is 2 to 60%.
(% by weight, the same applies hereinafter). In addition,
This range is the value when base paper is soaked in viscose liquid. When the amount of regenerated cellulose deposited is within this range, sufficient heat sealability is maintained on both sides of the viscose processed paper. If it is less than 2%, the desired improvement in water resistance and strength will not be achieved sufficiently, and if it exceeds 60%, the heat sealability will be significantly impaired and it will not be practical. When heat-sealability is maintained only on one side, the amount of regenerated cellulose deposited on the other side may be arbitrary. However, the amount of regenerated cellulose deposited on the surface where heat-sealability is required may be about the same amount as the amount of regenerated cellulose deposited on one side when heat-sealability is maintained on both sides. The viscose liquid may be prepared by a conventional method and used as it is or after being diluted. The viscosity varies depending on the application and impregnation method used, but
Usually about 100 to 5000 cps is suitable. The coating or impregnating method used in the present invention is as follows:
For example, a coating method using a roll coater or the like, a spraying method, a brush coating method, or a method of dipping in a viscose liquid can be employed, and the method may be selected depending on the viscosity of the viscose liquid, the amount of cellulose attached, etc. Furthermore, viscose processing can be applied not only to sheet-shaped base paper but also to cylindrical paper. The hydrophilic fibers used in the present invention include one or more of natural pulps such as hardwood pulp and softwood pulp, bast fibers such as Manila hemp, paper mulberry, and Japanese mulberry, cotton linters, viscose rayon, and polyvinyl alcohol fibers. can be used. Examples of thermoplastic fibers that are hydrophobic and have heat-sealing properties include polyethylene fibers, polypropylene fibers, polyvinyl chloride fibers, polyvinylidene chloride fibers, polyamide fibers, ethylene-vinyl acetate copolymer fibers, and conjugate fibers. Or two or more types can be used. It is preferable that the mixed paper is composed of 20 to 80 parts (by weight, hereinafter the same) of hydrophilic fibers and 80 to 20 parts of thermoplastic fibers. If the hydrophilic fiber content is less than 20 parts, the processability of viscose is poor and it is not practical. If the thermoplastic fiber content is less than 20 parts, sufficient heat-sealing properties cannot be obtained, and both are unfavorable. The viscose-processed paper of the present invention has significantly improved tensile strength, especially water resistance, which is a characteristic of viscose processing, while maintaining heat-sealability. As mentioned above, the viscose processed paper of the present invention only needs to have heat-sealability on at least one side, so if the heat-sealability of only one side is used, the regenerated cellulose on the other side There is no restriction on the amount of adhesion. For example, if a continuous film of regenerated cellulose is formed on a surface that does not require heat-sealing properties, the oil resistance, fragrance retention, and appropriate moisture permeability that cellophane possesses can be further imparted to the paper web, making it a useful packaging material. can be provided. Next, the viscose processed paper of the present invention will be explained with reference to Examples. Example 1 30 parts of softwood pulp, 20 parts of Manila hemp pulp and short polypropylene fibers with a thickness of 2 denier and a length of 5 mm.
Using 50 parts as a raw material, paper was made using a short screen and dried using a Yankee dryer to obtain a mixed paper weighing 12 g/m 2 . Next, a viscose liquid prepared by a conventional method (cellulose content: 9% by weight, total alkali concentration: 6% by weight)
About 500 cps of viscose liquid was prepared by diluting it to 1/2 with an alkaline solution. The mixed paper was immersed in this viscose liquid for impregnation treatment, and then the amount of cellulose adhered was 1.5.
After squeezing out the excess viscose liquid using two rolls so as to give a concentration of g/m 2 , the mixture was dried by passing through a non-contact dryer. The resulting viscose-processed paper was treated in a viscose coagulation bath (H 2 SO 4 14%, Na 2 SO 4 15%), followed by a cellulose regeneration bath (H 2 SO 4 5%, Na 2 SO 4 2
%) in which cellulose was regenerated. The paper was then desulfurized and washed with water, softened in a glycerin bath, and dried to obtain a water-resistant paper having heat-sealability according to the present invention. The tensile strength and heat seal strength of the obtained viscose processed paper and base paper of the present invention were measured.
The results are shown in Table 1. In addition, each test was conducted as follows. Tensile strength Standard condition: Measured according to JIS P 8113 "Tensile strength test method for paper and paperboard". Hot water resistance: Measured according to JIS P 8135 "Wet tensile strength testing method for paper and paperboard".
However, the immersion was performed in boiling water for 15 minutes. Heat seal strength Measured according to JIS Z 1521 "Thermal adhesive strength of cellophane".
【表】
第１表から明らかなごとく、本発明のビスコー
ス加工紙は引張強さ、とくに耐熱水性が未加工時
の３倍以上に向上し、しかもヒートシール性は殆
んど損われていない。
実施例 ２
針葉樹パルプ50部、合成パルプ（SWP、Ｅ−
400（三井石油化学(株)製））50部を原料とし、短網
で抄紙し、ヤンキードライヤーで乾燥して20ｇ／
m2の混抄紙をえた。
この混抄紙の一方の面に常法により調製したビ
スコース液（セルロース含量９重量％、全アルカ
リ濃度６重量％、粘度5000cps）をロールコータ
ーでセルロース付着量が30ｇ／m2となるようにコ
ーテイングしたのち非接触型乾燥機を通過させて
乾燥した。
えられたビスコース加工紙をビスコース凝固
浴、ついでセルロース再生浴で処理し、セルロー
スを再生した。ついで脱硫、漂白処理したのち水
洗し、ついでトリエチレングリコール浴中で柔軟
処理したのちヤンキードライヤーで乾燥し、片面
に光沢のある再生セルロースの連続皮膜が形成さ
れた本発明のヒートシール性を有するビスコース
加工紙をえた。
えられた本発明のビスコース加工紙および原紙
の引張強さおよびヒートシール強度を実施例１と
同様にして測定した。
結果を第２表に示す。
比較例
実施例２で作製した混抄紙を、常法により調製
したビスコース液（セルロース含量９重量％、全
アルカリ濃度６重量％）を5/6にアルカリ液で希
釈した粘度約2000cpsの液中に浸漬し、セルロー
ス付着量を30ｇ／m2となるように２本ロールで余
剰のビスコース液を絞り取つたほかは実施例２と
同様にして比較用のビスコース加工紙をえた。
この比較用のビスコース加工紙の引張強さおよ
びヒートシール強度を実施例１と同様にして測定
した。
結果を第２表に示す。[Table] As is clear from Table 1, the tensile strength, especially the hot water resistance, of the viscose-treated paper of the present invention is more than three times that of the untreated paper, and the heat-sealability is almost unchanged. . Example 2 50 parts of softwood pulp, synthetic pulp (SWP, E-
400 (manufactured by Mitsui Petrochemical Co., Ltd.)) is used as raw material, made into paper with a short screen, and dried with a Yankee dryer to produce 20g/
I got 2 m2 of mixed paper. One side of this mixed paper was coated with a viscose liquid (cellulose content 9% by weight, total alkali concentration 6% by weight, viscosity 5000cps) prepared by a conventional method using a roll coater so that the amount of cellulose adhesion was 30g/ m2 . After that, it was dried by passing it through a non-contact dryer. The resulting viscose-processed paper was treated with a viscose coagulation bath and then with a cellulose regeneration bath to regenerate cellulose. The heat-sealing bis of the present invention is then desulfurized and bleached, washed with water, softened in a triethylene glycol bath, and dried in a Yankee dryer to form a continuous film of glossy regenerated cellulose on one side. I got course processed paper. The tensile strength and heat seal strength of the obtained viscose processed paper and base paper of the present invention were measured in the same manner as in Example 1. The results are shown in Table 2. Comparative Example The mixed paper produced in Example 2 was placed in a solution with a viscosity of approximately 2000 cps prepared by diluting a viscose solution (cellulose content: 9% by weight, total alkali concentration: 6% by weight) to 5/6 with an alkaline solution prepared by a conventional method. Comparative viscose processed paper was obtained in the same manner as in Example 2, except that the excess viscose liquid was squeezed out using two rolls so that the cellulose adhesion amount was 30 g/m 2 . The tensile strength and heat seal strength of this comparative viscose processed paper were measured in the same manner as in Example 1. The results are shown in Table 2.
【表】
第２表から明らかなごとく、本発明のビスコー
ス加工紙は引張強さが原紙の２倍以上に向上し、
ヒートシール強度はわずか５％程度減少しただけ
である。また透湿性もセロハンの特質を継承して
おり、良好であつた。
一方、比較例のビスコース加工紙は引張強さは
大きく向上しているが、ヒートシール強度は原紙
の約15％に減少し、実用に供しうるものではなか
つた。[Table] As is clear from Table 2, the tensile strength of the viscose processed paper of the present invention is more than twice that of the base paper.
The heat seal strength decreased by only about 5%. The moisture permeability was also good, inheriting the properties of cellophane. On the other hand, although the tensile strength of the viscose-treated paper of the comparative example was greatly improved, the heat seal strength was reduced to about 15% of that of the base paper, making it unsuitable for practical use.
Claims (1)
有する熱可塑性繊維とからなる混抄紙に、少なく
とも片面における再生セルロースの付着量がドブ
漬法で原紙の２〜30重量％である量に相当する量
で再生セルロース層が形成されてなるヒートシー
ル性を有するビスコース加工紙。 ２ 親水性繊維と疎水性でかつヒートシール性を
有する熱可塑性繊維とからなる混抄紙の少なくと
も一方の面に、少なくとも片面における再生セル
ロースの付着量がドブ漬法で原紙の２〜30重量％
である量に相当する量になるようにビスコース液
を塗布あるいは含浸せしめた後乾燥し、ついで凝
固浴および再生浴中で処理することを特徴とする
ヒートシール性を有するビスコース加工紙の製造
法。[Scope of Claims] 1. A mixed paper consisting of hydrophilic fibers and hydrophobic thermoplastic fibers having heat-sealing properties is coated with regenerated cellulose on at least one side of the paper in an amount of 2 to 30% by weight of the base paper by dipping method. A viscose processed paper having heat-sealing properties, in which a regenerated cellulose layer is formed in an amount corresponding to a certain amount. 2. The amount of regenerated cellulose deposited on at least one side of a mixed paper consisting of hydrophilic fibers and hydrophobic thermoplastic fibers having heat-sealing properties is 2 to 30% by weight of the base paper by dipping method.
Production of viscose processed paper with heat-sealability, characterized by applying or impregnating a viscose liquid in an amount corresponding to a certain amount, drying it, and then treating it in a coagulation bath and a regeneration bath. Law.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11197082A JPS591799A (en) | 1982-06-28 | 1982-06-28 | Viscose processed paper having heat sealability and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11197082A JPS591799A (en) | 1982-06-28 | 1982-06-28 | Viscose processed paper having heat sealability and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591799A JPS591799A (en) | 1984-01-07 |
| JPH0316435B2 true JPH0316435B2 (en) | 1991-03-05 |
Family
ID=14574698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11197082A Granted JPS591799A (en) | 1982-06-28 | 1982-06-28 | Viscose processed paper having heat sealability and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591799A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4660170B2 (en) * | 2004-11-26 | 2011-03-30 | 三晶株式会社 | Method for producing film-forming porous sheet |
| WO2008084139A1 (en) * | 2007-01-12 | 2008-07-17 | Ahlstrom Corporation | A method of forming a reinforced parchmented nonwoven product, and the product |
| JP7734027B2 (en) * | 2020-10-02 | 2025-09-04 | リンテック株式会社 | Paper label laminate and method for manufacturing the same |
-
1982
- 1982-06-28 JP JP11197082A patent/JPS591799A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS591799A (en) | 1984-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2956582B1 (en) | Fibrous substrate containing fibers and nanofibrillar polysaccharide | |
| US3455778A (en) | Creped tissue formed from stiff crosslinked fibers and refined papermaking fibers | |
| JP2001509552A (en) | Medical wrapping paper | |
| JP4301809B2 (en) | Self-heat-sealable packaging and method for producing the packaging | |
| KR19990023254A (en) | Hydrolyzable fiber sheet | |
| MXPA05005505A (en) | Tissue products having enhanced strength. | |
| MX2007003844A (en) | Absorbent articles comprising thermosplastic resin pretreated fibers. | |
| EP1027499B2 (en) | Heat seal infusion web material and method of manufacture | |
| US5431997A (en) | Process of producing porous web materials used for making infusion packages for brewing beverages and the web materials thus produced | |
| JPH0242959B2 (en) | ||
| JPH0316435B2 (en) | ||
| US2046763A (en) | Paper product and method of making | |
| US3039913A (en) | Reinforced resin sheet | |
| US1992996A (en) | Paper and method of making same | |
| US2005397A (en) | Manufacture of strengthened absorptive paper | |
| CA2523395A1 (en) | Wallpaper and method for production thereof | |
| US1989885A (en) | Specialty paper | |
| GB2079630A (en) | Improvements in and relating to removable wallpaper | |
| JP7718006B2 (en) | Greaseproof paper and heat-sealed greaseproof paper | |
| JP7474035B2 (en) | Manufacturing method for wiping sheets | |
| US2108804A (en) | Moistureproof material and process of making same | |
| US2067501A (en) | Parchment paper and method of making same | |
| US2099726A (en) | Paper and method of making same | |
| JP2581609B2 (en) | Breathable oil-repellent paper and method for producing the same | |
| KR102176248B1 (en) | High durability paper containing nano-cellulose and manufacturing method thereof |