JP2010095804A - Biodegradable resin-impregnated paper - Google Patents
Biodegradable resin-impregnated paper Download PDFInfo
- Publication number
- JP2010095804A JP2010095804A JP2008264731A JP2008264731A JP2010095804A JP 2010095804 A JP2010095804 A JP 2010095804A JP 2008264731 A JP2008264731 A JP 2008264731A JP 2008264731 A JP2008264731 A JP 2008264731A JP 2010095804 A JP2010095804 A JP 2010095804A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- biodegradable resin
- weight
- impregnated
- resin emulsion
- 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
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Paper (AREA)
Abstract
Description
本発明は、生分解性樹脂エマルジョンを含浸した紙に関する。更に詳しくは紙の層間剥離強度を向上させた生分解性樹脂含浸紙に関する。 The present invention relates to a paper impregnated with a biodegradable resin emulsion. More particularly, the present invention relates to a biodegradable resin-impregnated paper having improved paper delamination strength.
紙に樹脂エマルジョンを含浸して得られる含浸紙は紙の各種物性を向上させる手段として広く用いられている。このうち向上させたい強度物性としては乾湿抗張力、破裂度、層間剥離強度、耐折度、耐磨耗性等があるが、層間剥離強度はとりわけ重要な物性である。そして、樹脂エマルジョンを含浸してこの物性を向上させた各種用途の含浸紙が生産されている。 Impregnated paper obtained by impregnating a paper with a resin emulsion is widely used as a means for improving various physical properties of paper. Among them, strength properties to be improved include wet and dry tensile strength, rupture degree, delamination strength, folding resistance, abrasion resistance, etc., but delamination strength is particularly important. In addition, impregnated papers for various uses in which the physical properties are improved by impregnating with a resin emulsion have been produced.
含浸用樹脂の素材としては、（メタ）アクリル酸エステル系重合体及びそれとスチレン、アクリロニトリル、あるいは酢酸ビニルとの共重合体、エチレン−酢酸ビニル共重合体、SBR,MBR,NBR、並びにポリウレタン系等がある。しかしながら、これらの樹脂エマルジョンは非生分解性であるため、使用後廃棄されても分解しない。 The material of the impregnating resin includes (meth) acrylic acid ester polymer and its copolymer with styrene, acrylonitrile, or vinyl acetate, ethylene-vinyl acetate copolymer, SBR, MBR, NBR, polyurethane, etc. There is. However, since these resin emulsions are non-biodegradable, they do not decompose even when discarded after use.
近年、微生物により生分解する生分解性熱可塑性樹脂の開発が進み、フィルム、繊維あるいは成型品として各種用途に用いられてきている。また、エマルジョンも開発されいくつかの用途が検討されている。そして、これを用いた含浸紙も検討されている。しかしながら、生分解樹脂エマルジョンだけを含浸しても同含浸率の非生分解性樹脂エマルジョン含浸紙よりも強度が低く、このため含浸率を高くする必要があり実用性に乏しいものであった。 In recent years, development of biodegradable thermoplastic resins that biodegrade with microorganisms has progressed, and they have been used in various applications as films, fibers or molded articles. Emulsions have also been developed and several uses are under consideration. And the impregnated paper using this is also examined. However, even when impregnated with only the biodegradable resin emulsion, the strength is lower than that of the non-biodegradable resin emulsion-impregnated paper having the same impregnation rate, and therefore, it is necessary to increase the impregnation rate, resulting in poor practicality.
含浸紙の強度向上方法のひとつとして生分解性樹脂エマルジョンに脂肪族ポリイソシアネート化合物を配合する方法が提案されており、含浸紙への応用が記載されている（特許文献１）。しかしながら、物性として耐折度及び乾湿裂断長の向上が示されているが層間剥離強度についてはなんら記載されていない。
含浸紙の層間剥離強度の向上方法として、本発明者はカチオン性の湿潤紙力剤を高率添加した原紙に生分解性樹脂エマルジョンを含浸する方法を提案し、特許出願している(特許文献２)。この方法は含浸紙の層間剥離強度向上法のひとつである。
炭酸ジルコニウムアンモニウムは紙塗工用のバインダーとして使用される高分子物質に含まれているカルボキシル基や水酸基と反応しこれらを不溶化することで塗工層に耐水性を付与する耐水化剤として、一般に用いられている。
そして、炭酸ジルコニウムアンモニウム等からなる架橋剤を生分解性樹脂水分散体に適用することにより、生分解性樹脂被膜の耐水性、破断強度、及び破断伸びを向上させる方法が提案されている（特許文献３）。しかしながら、含浸紙についてはなんら記載されていない。
And the method of improving the water resistance of a biodegradable resin film, breaking strength, and breaking elongation by applying the crosslinking agent which consists of zirconium carbonate etc. to a biodegradable resin water dispersion is proposed (patent) Reference 3). However, there is no description about impregnated paper.
本発明の目的は生分解性樹脂エマルジョンを用いて層間剥離強度を向上させた含浸紙を提供することである。 An object of the present invention is to provide an impregnated paper having improved delamination strength using a biodegradable resin emulsion.
本発明者は、上記課題を解決すべく鋭意検討した結果、炭酸ジルコニウムアンモニウムが添加された生分解性樹脂エマルジョンを原紙に含浸することにより課題が解決できることを見出し、本発明を完成するに至った。 As a result of intensive studies to solve the above problems, the present inventors have found that the problem can be solved by impregnating the base paper with a biodegradable resin emulsion to which ammonium zirconium carbonate has been added, and have completed the present invention. .
本発明の第一は、パルプを主体とした原紙に対し、生分解性樹脂エマルジョンの固形分１００重量部に対して炭酸ジルコニウムアンモニウムが０．０５重量部以上添加された生分解性樹脂エマルジョンが含浸された生分解性樹脂含浸紙、である。 The first of the present invention is impregnated with a biodegradable resin emulsion in which 0.05 parts by weight or more of ammonium zirconium carbonate is added to 100 parts by weight of the solid content of the biodegradable resin emulsion with respect to a base paper mainly composed of pulp. Biodegradable resin-impregnated paper.
本発明の第二は、パルプ１００重量部に対してカチオン性の湿潤紙力剤が１重量部以上添加された原紙を用いた、請求項１に記載された生分解性樹脂含浸紙、である。 The second aspect of the present invention is the biodegradable resin-impregnated paper according to claim 1, wherein a base paper to which 1 part by weight or more of a cationic wet paper strength agent is added to 100 parts by weight of pulp is used. .
本発明は、炭酸ジルコニウムアンモニウムが添加された生分解性樹脂エマルジョンを原紙に含浸することにより含浸紙の層間剥離強度が向上するという効果を奏する。 The present invention has an effect that the delamination strength of the impregnated paper is improved by impregnating the base paper with a biodegradable resin emulsion to which ammonium zirconium carbonate is added.
以下、本発明を詳細に説明する。
本発明に用いられる生分解性樹脂エマルジョンとしては、生分解性脂肪族ポリエステルのエマルジョンがあり、具体的にはポリブチレンサクシネート系、ポリカプロラクトン系、ポリ乳酸系等のエマルジョンがある。
Hereinafter, the present invention will be described in detail.
Examples of the biodegradable resin emulsion used in the present invention include biodegradable aliphatic polyester emulsions, specifically, polybutylene succinate-based, polycaprolactone-based, and polylactic acid-based emulsions.
本発明に用いられる含浸剤として、生分解性樹脂エマルジョン以外に、生分解性の可塑剤エマルジョン、その外の生分解性エマルジョン及び水溶性物質、並びに少量のサイズ剤や染料顔料等を含んでもよい。 In addition to the biodegradable resin emulsion, the impregnating agent used in the present invention may contain a biodegradable plasticizer emulsion, the other biodegradable emulsion and water-soluble substance, and a small amount of a sizing agent and a dye pigment. .
本発明において、含浸率とは含浸後の紙の重量に対する含浸剤固形分重量の割合を言う。通常、一定面積の原紙の重量を測定しておき、その原紙に含浸し、乾燥した後の重量を測定して含浸率を算出する。 In the present invention, the impregnation rate refers to the ratio of the weight of the impregnating agent solid to the weight of the paper after impregnation. Usually, the weight of a certain area of the base paper is measured, the base paper is impregnated, and the weight after drying is measured to calculate the impregnation rate.
本発明において、含浸率は特に限定されるものではなく要求される物性に応じて、決めればよいが、通常５〜５０％である。含浸率が５％未満では含浸紙としての物性が得られない。また、エマルジョン含浸では含浸率が５０％を越える含浸紙は実質的に殆ど作製できない。 In the present invention, the impregnation rate is not particularly limited and may be determined according to the required physical properties, but is usually 5 to 50%. If the impregnation rate is less than 5%, physical properties as impregnated paper cannot be obtained. In addition, impregnated paper having an impregnation rate exceeding 50% can hardly be produced by emulsion impregnation.
本発明において、含浸される原紙の繊維素材はセルロースパルプを主体としてこれに生分解性の化学繊維（レーヨン）や合成繊維（ポリ乳酸繊維やPVA繊維等）を含んでもよい。セルロースパルプは離解のみでも叩解して用いてもよい。更に、原紙には填料顔料等が含まれてもよい。また、水系での含浸では通常、パルプのカチオン性の湿潤紙力剤が添加される。 In the present invention, the fiber material of the base paper to be impregnated mainly contains cellulose pulp, and may contain biodegradable chemical fiber (rayon) or synthetic fiber (polylactic acid fiber, PVA fiber, etc.). Cellulose pulp may be used only after disaggregation or after beating. Furthermore, the base paper may contain filler pigments and the like. In addition, in the case of impregnation with an aqueous system, a cationic wet paper strength agent of pulp is usually added.
本発明において用いられるカチオン性湿潤紙力剤としてはポリアミドポリアミン・エピクロロヒドリン、キトサン、ポリビニルアミン等がある。 Examples of the cationic wet paper strength agent used in the present invention include polyamide polyamine, epichlorohydrin, chitosan, and polyvinylamine.
本発明において用いられる炭酸ジルコニウムアンモニウムには日本軽金属社製のベイコート２０、サンノプコ社製のAZコート、第一稀元素化学工業社製のジルコゾールAC等がある。 Examples of the ammonium zirconium carbonate used in the present invention include Baycoat 20 manufactured by Nippon Light Metal Co., Ltd., AZ Coat manufactured by San Nopco, and Zircosol AC manufactured by Daiichi Rare Element Chemical Industries.
本発明において、生分解性樹脂エマルジョンに添加される炭酸ジルコニウムアンモニウムは生分解性樹脂エマルジョンの固形分１００重量部に対して０．０５重量部以上である。添加される炭酸ジルコニウムアンモニウムが０．０５重量部未満では効果が不十分である。また添加量が多くなるとレベルオフしてしまい、またコストアップになるので２重量部以下が好ましい。 In the present invention, the zirconium zirconium carbonate added to the biodegradable resin emulsion is 0.05 parts by weight or more with respect to 100 parts by weight of the solid content of the biodegradable resin emulsion. If the amount of zirconium ammonium carbonate added is less than 0.05 parts by weight, the effect is insufficient. If the amount added is increased, the level is turned off and the cost is increased, so 2 parts by weight or less is preferable.
以下に実施例を挙げて本発明を具体的に説明する。
なお、本発明の実施例における物性は以下の方法で評価した。
The present invention will be specifically described below with reference to examples.
In addition, the physical property in the Example of this invention was evaluated with the following method.
層間剥離強度：１５ｍｍ幅×適当長さの試験片の端部の層間を少し剥がして、この剥がした両端を引張試験機の上下のつかみに固定し、低速度で剥がしていく。この時に未剥離部は引張方向と直角になるように保持する。この剥離強度を記録計に記録し、この平均値を幅で除した値を層間剥離強度とした。 Interlaminar peel strength: A 15 mm width × appropriate length of the end of the test piece is slightly peeled off, and the peeled ends are fixed to the upper and lower grips of a tensile tester and peeled off at a low speed. At this time, the unpeeled portion is held so as to be perpendicular to the tensile direction. The peel strength was recorded on a recorder, and the value obtained by dividing the average value by the width was defined as the delamination strength.
実施例１
パルプ配合をLBKP/NBKP=７/３として５００mlCSFに叩解したパルプに湿潤紙力剤(住化ケムテック社製SR-6615)を対パルプ１００重量部当たり０．３重量部添加して坪量１００g/m2の手漉紙を得た。ポリ乳酸エマルジョン(第一工業製薬社製プラセマL１１０A)の固形分１００重量部に対し、炭酸ジルコニウムアンモニウム(日本軽金属社製ベイコート２０)を０．０５重量部添加して得た水分散体を上記手漉き紙に含浸率が３０％となるように含浸して乾燥し、更に熱処理を１５０℃×３分行った。この含浸紙の層間剥離強度は１７２N/mであった。
Example 1
Wet paper strength agent (SR-6615 manufactured by Sumika Chemtech Co., Ltd.) was added to pulp with LBKP / NBKP = 7/3 and beaten in 500ml CSF, and 0.3g by weight per 100 parts by weight of pulp was added. to give a hand漉紙of m 2. An aqueous dispersion obtained by adding 0.05 parts by weight of ammonium zirconium carbonate (Nippon Light Metals Baycoat 20) to 100 parts by weight of the solid content of a polylactic acid emulsion (Plasma L110A manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) The paper was impregnated so as to have an impregnation ratio of 30%, dried, and further subjected to heat treatment at 150 ° C. for 3 minutes. The delamination strength of this impregnated paper was 172 N / m.
実施例２
実施例１において、炭酸ジルコニウムアンモニウムを０．１重量部とした以外は同じ方法で手漉き及び含浸を行ない、含浸紙を得た。この含浸紙の層間剥離強度は２０８N/mであった。
Example 2
In Example 1, impregnation was carried out by the same method and impregnation except that 0.1 part by weight of ammonium zirconium carbonate was used. The delamination strength of this impregnated paper was 208 N / m.
実施例３
実施例１において、炭酸ジルコニウムアンモニウムを０．５重量部とした以外は同じ方法で手漉き及び含浸を行ない、含浸紙を得た。この含浸紙の層間剥離強度は２４２N/mであった。
Example 3
In Example 1, impregnation was carried out by the same method and impregnation except that 0.5 part by weight of ammonium zirconium carbonate was used. The delamination strength of this impregnated paper was 242 N / m.
実施例４
実施例１において、炭酸ジルコニウムアンモニウムを１重量部とした以外は同じ方法で手漉き及び含浸を行ない、含浸紙を得た。この含浸紙の層間剥離強度は２５３N/mであった。
Example 4
In Example 1, except that 1 part by weight of ammonium zirconium carbonate was used, manual milling and impregnation were performed to obtain an impregnated paper. The delamination strength of this impregnated paper was 253 N / m.
比較例１
実施例１において、炭酸ジルコニウムアンモニウムを添加しない以外は同じ方法で手漉き及び含浸を行ない、含浸紙を得た。この含浸紙の層間剥離強度は１５２N/mであった。
Comparative Example 1
In Example 1, manual impregnation and impregnation were performed in the same manner except that ammonium zirconium carbonate was not added to obtain an impregnated paper. The delamination strength of this impregnated paper was 152 N / m.
実施例５
パルプ配合をLBKP/NBKP=７/３として５００mlCSFに叩解したパルプに湿潤紙力剤(住化ケムテック社製SR-6615)を対パルプ１００重量部当たり１重量部添加して坪量１００g/m2の手漉紙を得た。ポリ乳酸エマルジョン(第一工業製薬社製プラセマL１１０A)の固形分１００重量部に対し、炭酸ジルコニウムアンモニウム(日本軽金属社製ベイコート２０)を１重量部添加して得た水分散体を上記手漉き紙に含浸率が３５％となるように含浸して乾燥し、更に熱処理を１５０℃×３分行った。この含浸紙の層間剥離強度は２８７N/mであった。
Example 5
Wet paper strength agent (SR-6615 manufactured by Sumika Chemtech Co., Ltd.) is added to the pulp blended with 500 ml CSF with LBKP / NBKP = 7/3 as the pulp composition, and 100 g / m 2 basis weight is added per 100 parts by weight of the pulp. I got a hand-made paper. An aqueous dispersion obtained by adding 1 part by weight of ammonium zirconium carbonate (Nippon Light Metals Bay Coat 20) to 100 parts by weight of the solid content of a polylactic acid emulsion (Plasma L110A manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) is applied to the above handmade paper. Impregnation was carried out so that the impregnation rate was 35%, followed by drying, and further heat treatment was performed at 150 ° C. for 3 minutes. The delamination strength of this impregnated paper was 287 N / m.
比較例２
実施例５において、炭酸ジルコニウムアンモニウムを添加しない以外は同じ方法で手漉き及び含浸を行ない、含浸紙を得た。この含浸紙の層間剥離強度は２５０N/mであった。
Comparative Example 2
In Example 5, manual impregnation and impregnation were performed in the same manner except that ammonium zirconium carbonate was not added to obtain an impregnated paper. The delamination strength of this impregnated paper was 250 N / m.
以上説明してきたように、本発明の生分解性樹脂含浸紙は層間剥離強度が向上されているので、これまで非生分解性樹脂エマルジョンを用いて含浸してきた各種含浸紙への応用が期待できる。
As described above, since the biodegradable resin-impregnated paper of the present invention has improved delamination strength, application to various impregnated papers that have been impregnated with non-biodegradable resin emulsions can be expected. .
Claims (2)
The biodegradable resin-impregnated paper according to claim 1, wherein a base paper to which 1 part by weight or more of a cationic wet paper strength agent is added to 100 parts by weight of pulp is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008264731A JP2010095804A (en) | 2008-10-14 | 2008-10-14 | Biodegradable resin-impregnated paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008264731A JP2010095804A (en) | 2008-10-14 | 2008-10-14 | Biodegradable resin-impregnated paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2010095804A true JP2010095804A (en) | 2010-04-30 |
Family
ID=42257683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008264731A Pending JP2010095804A (en) | 2008-10-14 | 2008-10-14 | Biodegradable resin-impregnated paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2010095804A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012527544A (en) * | 2009-05-18 | 2012-11-08 | シノコ・ケミカルス | Improving the strength of paper and paperboard products |
-
2008
- 2008-10-14 JP JP2008264731A patent/JP2010095804A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012527544A (en) * | 2009-05-18 | 2012-11-08 | シノコ・ケミカルス | Improving the strength of paper and paperboard products |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Le Duigou et al. | Long term immersion in natural seawater of Flax/PLA biocomposite | |
| FI3919678T3 (en) | Method of producing a fibrous web containing natural and synthetic fibres | |
| JP2007077526A (en) | Backing paper for wall paper | |
| CA3017446A1 (en) | Film comprising microfibrillated cellulose and products made therefrom | |
| JP5272444B2 (en) | Release paper base and release paper having phototube suitability | |
| Nassar et al. | Novel coating of bagasse paper sheets by gelatin and chitosan | |
| CN108495755B (en) | Solvent resistant printable substrate, method of making and use thereof | |
| JP2010095804A (en) | Biodegradable resin-impregnated paper | |
| JP2012092470A (en) | Base paper of process release paper for prepreg | |
| JP2010180513A (en) | Substrate for adhesive tape | |
| JP4588557B2 (en) | Process release paper base for forming carbon fiber reinforced resin and method for producing the same | |
| JP5495073B2 (en) | Clean paper and manufacturing method thereof | |
| JP5632185B2 (en) | Laminated sheet for inkjet printing | |
| JP2007100268A (en) | Biodegradable resin-impregnated paper | |
| JP3936252B2 (en) | Manufacturing method of base material for adhesive tape | |
| Jianprasert et al. | Surface improvement on water and oil affinities and absorption rate of PVA/Tung oil-coated paperboard and fiberboard | |
| JPWO2019212044A1 (en) | Nanocellulose-containing molded product and its manufacturing method | |
| Bridarolli | Multiscale approach in the assessment of nanocellulose-based materials as consolidants for painting canvases | |
| JP2006342489A (en) | Method for producing resin-containing paper | |
| JP5768313B2 (en) | Clean paper and manufacturing method thereof | |
| JP2724600B2 (en) | Vulcanized fiber and method for producing the same | |
| JP2008002021A (en) | Biodegradable impregnated paper for bookbinding | |
| JP2008266866A (en) | Paper having high folding endurance | |
| JP5703628B2 (en) | Clean paper and manufacturing method thereof | |
| JP2009203562A (en) | Base material of process paper for separation |