JP2002180397A - High-transparency paper sheet - Google Patents
High-transparency paper sheetInfo
- Publication number
- JP2002180397A JP2002180397A JP2001365356A JP2001365356A JP2002180397A JP 2002180397 A JP2002180397 A JP 2002180397A JP 2001365356 A JP2001365356 A JP 2001365356A JP 2001365356 A JP2001365356 A JP 2001365356A JP 2002180397 A JP2002180397 A JP 2002180397A
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- paper
- pulp
- transparency
- beating
- cellulose
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、再生が容易または
再生可能な高透明度の紙に関し、薬剤、食品の包装、窓
付封筒その他の広い用途に使用される紙に係るものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to paper having high transparency which is easy or renewable, and relates to paper used for medicine, food packaging, envelopes with windows and other wide applications.
【０００２】[0002]
【従来の技術】従来、薬剤、食品の包装、窓付封筒その
他多くの用途に使用されている透明紙として、ポリエス
テル、ポリスチレン、およびポリプロピレンなどの合成
高分子物質から作成されたシートおよびフィルムを素材
とした合成紙、またはそれら透明度の高いシートおよび
フィルムを透明度の低い紙にラミネートした複合紙が使
用されている。2. Description of the Related Art Sheets and films made of synthetic high molecular substances such as polyester, polystyrene, and polypropylene have been used as transparent papers conventionally used for medicine, food packaging, window envelopes, and many other applications. Or a composite paper obtained by laminating a highly transparent sheet and film on a low transparent paper.
【０００３】しかしながら、それら合成紙およびラミネ
ート紙は、これを再生する段において、離解工程でそれ
ら合成高分子物質のシートおよびフィルムは機械的に離
解することが不可能で、古紙から再生パルプを製造する
に当たり著しく障害となる。However, these synthetic papers and laminated papers cannot be mechanically defibrated in the defibration step in the defibration process, and the recycled pulp is produced from waste paper. In doing so, it becomes a significant obstacle.
【０００４】そこで、高透明度の紙とするため、前記合
成高分子物質を使用することなく、種々な方法が採られ
ている。即ち、ａ：植物繊維を高度に叩解したパルプを
抄紙し、高ニップのスーパーキャレンダーで乾燥、圧縮
する方法、ｂ：前記ａ法にて、抄紙機のドライヤーより
低い融点をもつ高分子物質を含浸させて空気を排除し透
明化を計る方法、ｃ：低密度の紙にセルロースと光屈折
率が比較的近いパラフィンワックスまたは高分子物質を
含浸または塗布して、透明性を与える方法などがある。Therefore, various methods have been adopted without using the above-mentioned synthetic polymer substance in order to obtain paper of high transparency. That is, a: a method in which pulp obtained by highly beaten vegetable fibers is made into paper, and dried and compressed by a high nip super calender. B: In the above method a, a polymer substance having a lower melting point than a dryer of a paper machine is used. A method of impregnating air to remove air to measure transparency; c: a method of impregnating or applying low-density paper with paraffin wax or a polymer substance having a relatively similar refractive index to cellulose to impart transparency. .
【０００５】本来、パルプを構成する成分であるβ−グ
ルコースは１・４−β−グルコシッド結合をなした無色
透明に近い物質であり、これが結束したミクロフィブリ
ル、さらにこれの集合したフィブリルからなるセルロー
ス繊維は、夾雑物や空隙が存在しない限りセロファンに
見られる様に透明性は高いものであり、それらの空隙の
存在が光屈折率を変え、また反射させるため不透明度は
増し、逆に透明度は落ちてゆく。[0005] Originally, β-glucose, which is a component of pulp, is a nearly colorless and transparent substance having a 1,4-β-glucosid bond, and is composed of bound microfibrils and cellulose composed of aggregated fibrils. Fibers are highly transparent, as seen in cellophane, as long as there are no contaminants or voids, and the presence of those voids alters the light refractive index, and also increases the opacity because it reflects light. It falls.
【０００６】透明紙とするためのパルプの種類の選択と
して、一部微細な機械パルプの試用もあるが、これは光
や熱により変色し易く、通常は夾雑物の少ない化学パル
プが透明紙の原料として多く使用されることになる。透
明紙は、薄く、しかも強度も要求されるのでパルプ原料
として広葉樹よりも針葉樹が好ましく、一部には麻パル
プが使用されるケースもある。[0006] As a selection of the type of pulp for making transparent paper, there is also a trial of fine mechanical pulp, which is easily discolored by light or heat, and usually, chemical pulp with few impurities is used for transparent paper. It is often used as a raw material. Since transparent paper is required to be thin and high in strength, softwood is preferable to hardwood as a raw material for pulp. In some cases, hemp pulp is used.
【０００７】化学パルプの中でも、歩留りは落ちるがク
ラフトパルプよりも亜硫酸パルプが使用されるが、一面
において紙の強度低下を招くことに加え、精製されて高
価なパルプとなり大幅なコストアップを招く結果とな
る。[0007] Among chemical pulps, sulfite pulp is used rather than kraft pulp, although the yield is low. However, in addition to lowering the strength of paper on one side, the pulp is refined and becomes expensive, resulting in a significant increase in cost. Becomes
【０００８】一般的に透明紙と言えば、グラシン紙、油
紙、蝋紙などが挙げられるが、紙シートの繊維間隙を微
細繊維で充填したグラシン紙とするためには、植物繊維
パルプを高度に粘状叩解して抄紙するが、この場合叩解
のための電力の消費が著しく、叩解刃の損傷も多く、長
時間を要すことも含め非常に不経済である欠点をもつ。[0008] Generally speaking, transparent paper includes glassine paper, oil paper, wax paper and the like. In order to obtain glassine paper in which the fiber gap of a paper sheet is filled with fine fibers, plant fiber pulp must be highly refined. The paper is made by viscous beating, but in this case, the power consumption for the beating is remarkable, the beating blade is often damaged, and it has a disadvantage that it is very uneconomical including that it takes a long time.
【０００９】また、抄紙機のドライヤーより低い融点を
持つ高分子物質を含浸させるものについては、ドライヤ
ー乾燥中に高分子物質がドライヤーに付着し、これを取
り除く為には特別の除去装置を必要としたり、または、
抄紙機を停止させて付着物を取り除く作業を伴うため、
不経済であるばかりでなく著しく生産性を低下させる欠
点をもつ。In the case of impregnating a high molecular substance having a melting point lower than that of a paper machine dryer, the high molecular substance adheres to the dryer during drying of the dryer, and a special removing device is required to remove the high molecular substance. Or
Because it involves work to stop the paper machine and remove the deposits,
Not only is it uneconomical, but also has the disadvantage of significantly reducing productivity.
【００１０】本発明の先行技術として、特開平２−６６
８２があるが、この発明はパルプ繊維間隙に澱粉を充填
または繊維表面に未糊化澱粉を結合させた透明紙を紹介
しているが、澱粉を内添した場合抄紙機ドライヤーにそ
れが付着して高分子物質と同様に汚れをもたらす欠点を
もつ。The prior art of the present invention is disclosed in Japanese Patent Application Laid-Open No. 2-66.
No. 82, the present invention introduces a transparent paper in which the pulp fiber gap is filled with starch or ungelatinized starch is bonded to the fiber surface, but when starch is internally added, it adheres to the paper machine dryer. And has the disadvantage of causing soiling as well as polymer substances.
【００１１】[0011]
【発明が解決しようとする課題】本発明は、前記従来法
における種々の欠点を改良することを課題として成され
たもので、高分子物質および未糊化澱粉の付着の問題、
ポリエステル、ポリスチレン、ポリオレフィンのシート
またはフィルムからなる合成紙、ラミネート紙の再生不
可能な問題、また高度の叩解に費やす電力消費の問題を
悉く解決するため、パルプの叩解工程でセルロース分解
酵素を添加し、極めて高い透明度をもち再生紙製造に優
れた高透明度紙を提供する。SUMMARY OF THE INVENTION The present invention has been made to improve various drawbacks in the above-mentioned conventional method, and has been made to solve the problems of adhesion of a polymer substance and ungelatinized starch,
Cellulose-degrading enzymes were added during the pulp beating process to solve all of the non-renewable problems of synthetic paper and laminated paper made of polyester or polystyrene or polyolefin sheets or films, as well as the power consumption of advanced beating. To provide high transparency paper having extremely high transparency and excellent in production of recycled paper.
【００１２】[0012]
【課題を解決するための手段】本発明の構成は、下記の
とおりである。 １ セルロース分解酵素を、パルプの叩解工程で、対パ
ルプ０．０１〜０．２重量％添加処理して成る、透明度
が８５．７以上、密度が１．３５０以上であることを特
徴とする高透明度紙。 ２ セルロース分解酵素は、ＣＭＣ活性が２５００〜３
０００Ｕ／ｍｌであることを特徴とする前項１記載の高
透明度紙。The configuration of the present invention is as follows. (1) High transparency characterized by having a transparency of 85.7 or more and a density of 1.350 or more, which is obtained by adding 0.01 to 0.2% by weight of pulp to a cellulose-decomposing enzyme in a pulp beating process. Transparency paper. 2 Cellulose degrading enzyme has a CMC activity of 2500-3
2. Highly transparent paper according to the above item 1, wherein the paper is 000 U / ml.
【００１３】[0013]
【発明の実施の形態】セルロース分解酵素は、セルラー
ゼを使用するが、そのＣＭＣ活性は２５００〜３０００
Ｕ／ｍｌであるものが特に顕著な作用効果をもたらすこ
とに着目した。なお、ＩＵ（ユニット）とは、ＣＭＣ
（カルボキシメチルセルロース）を基質として、１分間
に１μモルのグルコース相当の還元末端を生じさせる酵
素量を意味する。前記セルラーゼを添加しないものに比
して、パルプの微細化が極めて容易で、叩解負荷が大幅
に減少し、叩解刃の損傷が軽減し、有効に再生透明紙を
得ることが出来た。BEST MODE FOR CARRYING OUT THE INVENTION Cellulase is a cellulase whose CMC activity is 2500-3000.
It was noted that U / ml provided a particularly remarkable effect. In addition, IU (unit) means CMC
(Carboxymethylcellulose) as a substrate means an amount of an enzyme that generates a reducing end equivalent to 1 μmol of glucose per minute. Compared with the case where no cellulase was added, the pulp was extremely finely divided, the beating load was significantly reduced, the damage to the beating blade was reduced, and recycled paper could be obtained effectively.
【００１４】上記ＣＭＣ活性のセルラーゼを使用したこ
とにより、パルプスラリーを高水分で抄紙したのちスー
パーキャレンダー処理工程でシートを圧縮した時、この
圧縮が極めて容易に行われるため、従来の高透明紙製造
に際して、電力消費その他技術的問題を悉く解決するこ
とが出来た。By using the above-mentioned cellulase having CMC activity, when the pulp slurry is made into paper with high moisture and then the sheet is compressed in a super calendering process, the compression is very easily performed. During production, we were able to solve all power consumption and other technical problems.
【００１５】本発明に係る高透明度紙は、木材パルプ１
００％を使用して製造するものであるから、従来から製
造されている普通のグラシン紙と離解性は同等である。The highly transparent paper according to the present invention is a wood pulp 1
Since it is manufactured using 00%, the disintegration is equivalent to that of ordinary glassine paper conventionally manufactured.
【００１６】本発明による叩解作用に関して考えられる
点は、セルロース分解酵素（セルラーゼ）を添加した調
成パルプは、セルロースの非晶領域に水分子が吸着して
パルプの内部膨潤が進むことにより、叩解工程での繊維
のカッティングが低エネルギーで実施出来、単位処理量
当たりの叩解電力を減少する事が出来るものと見られ
る。A possible point of the beating action according to the present invention is that the prepared pulp to which the cellulose-degrading enzyme (cellulase) is added is beaten by water molecules adsorbing to the amorphous region of cellulose and the internal swelling of the pulp proceeds. It seems that the fiber cutting in the process can be performed with low energy, and the beating power per unit throughput can be reduced.
【００１７】叩解負荷が減少することにより叩解刃の摩
耗損傷が減ってくる。従来のセルロース分解酵素（セル
ラーゼ）を添加しない方法に比して、これを添加してパ
ルプ調成を行うと抄紙ドライヤーの乾燥エネルギーが５
〜１０％増加する。また、セルロース分解酵素（セルラ
ーゼ）を添加した調成パルプは、水分の蒸発速度を遅延
させる効力を有し、パルプ内部に水分を余計に保有させ
ている現象を見ることが出来る。The reduction of the beating load reduces the wear damage of the beating blade. Compared with the conventional method in which cellulose-degrading enzyme (cellulase) is not added, when the pulp preparation is performed by adding this, the drying energy of the papermaking dryer is reduced by 5%.
〜１０10% increase. The prepared pulp to which the cellulose-decomposing enzyme (cellulase) is added has an effect of delaying the evaporation rate of water, and it can be seen that the pulp has an extra amount of water inside the pulp.
【００１８】スーパーキャレンダー工程は、抄紙原紙を
乾燥・圧縮し、紙層内の空気を除去させて紙層の密度を
高めて高透明度の紙とする工程となる。パルプ内部の水
分が多い抄紙原紙と、それが少ない抄紙原紙とでは、乾
燥・圧縮において、水分離脱速度が異なり、内部水分の
多い抄紙原紙は圧縮されやすい性質を持ち合わせている
ことがわかる。The super calendering step is a step of drying and compressing the papermaking base paper to remove air in the paper layer to increase the density of the paper layer to obtain a highly transparent paper. It can be seen that the paper base paper having a large amount of water inside the pulp and the paper base paper having a small amount of water have different water separation / desorption rates in drying and compression, and that the paper base paper having a large amount of internal water has a property of being easily compressed.
【００１９】次に、実施例にもとづいて詳細に検討す
る。処理条件−パルプに対するセルロース分解酵素の処
理条件は、温度、ｐＨ、時間、酵素添加量により適切な
ところを選択して実施するが、パルプが糖を生成し低分
子化へ進む前段に制御させる必要がある。この設定が適
切でない場合は、パルプの低分子化が過度になり、紙質
強度が低下し紙としての機能を失う。その機能としての
紙質強度を満足する処理条件は、温度：１０〜５０℃、
ｐＨ：５〜８、時間：１〜３時間、酵素添加量：対パル
プ０．０１〜０．２重量％で行うが、全てについてこれ
に限定されるものではない。Next, the present invention will be described in detail based on embodiments. Treatment conditions-The treatment conditions of the cellulose-degrading enzyme for the pulp are selected and carried out according to the temperature, pH, time, and the amount of the enzyme to be added. There is. If this setting is not appropriate, the molecular weight of the pulp is excessively reduced, the paper quality is reduced, and the function as paper is lost. The processing conditions that satisfy the paper quality strength as its function are as follows: temperature: 10 to 50 ° C.
pH: 5 to 8, time: 1 to 3 hours, enzyme addition amount: 0.01 to 0.2% by weight based on pulp, but not limited thereto.
【００２０】[0020]
【実施例１】ＮＢＫＰを１０００ｋｇ離解した３％のパ
ルプスラリーをｐＨ６．５、温度２５℃にした後、セル
ロース分解酵素（ＧＥＮＥＮＣＯＲ製 ＰＥＲＧＡＬＡ
ＳＥＡ−４０）を対パルプ０．０５重量％添加し、２時
間処理した調成パルプを、ダブルディスクリファイナー
の負荷４５アンペアで１８０分叩解した後、水分３２％
で製品米坪４０ｇ／ｍ２の抄紙巻取を得た。抄紙巻取を
ロール温度１００℃、速度３２０ｍｍ／分、荷重２８８
ｇ−ｃｍのスーパーキャレンダーにて水分５％になるま
で加熱、圧縮し、後、密度、透明度、離解性を測定し
た。測定値は以下、表１に示す。Example 1 A 3% pulp slurry obtained by disintegrating 1000 kg of NBKP was adjusted to pH 6.5 and a temperature of 25 ° C., and then subjected to cellulolytic enzyme (PERGALA manufactured by GENENCOR).
SEA-40) was added to the pulp at 0.05% by weight and treated for 2 hours. The prepared pulp was beaten for 180 minutes with a load of 45 amps of a double disc refiner, and then moisture was 32%.
As a result, a paper roll of 40 g / m 2 was obtained. Roll the paper at 100 ° C. roll speed, 320 mm / min speed, load 288
The mixture was heated and compressed by a g-cm super calender until the water content became 5%, and then the density, transparency and disintegration were measured. The measured values are shown in Table 1 below.
【００２１】[0021]
【実施例２】ＮＢＫＰを１０００ｋｇ離解した３％のパ
ルプスラリーをｐＨ６．５、温度２５℃にした後、セル
ロース分解酵素（ＧＥＮＥＮＣＯＲ製 ＰＥＲＧＡＬＡ
ＳＥＡ−４０）を対パルプ０．０７重量％添加し、２時
間処理した調成パルプを、ダブルディスクリファイナー
の負荷５０アンペアで１８０分叩解した後、水分３２％
で製品米坪４０ｇ／ｍ２の抄紙巻取を得た。抄紙巻取を
ロール温度１００℃、速度３２０ｍｍ／分、荷重２８８
ｇ−ｃｍのスーパーキャレンダーにて水分５％になるま
で加熱、圧縮し、後、密度、透明度、離解性を測定し
た。Example 2 A 3% pulp slurry obtained by disintegrating 1000 kg of NBKP was adjusted to pH 6.5 and a temperature of 25 ° C., and then subjected to cellulolytic enzyme (PERGALA manufactured by GENENCOR).
SEA-40) was added to 0.07% by weight of pulp and treated for 2 hours. The prepared pulp was beaten for 180 minutes at a load of 50 amps of a double disc refiner, and then water content was 32%.
As a result, a paper roll of 40 g / m 2 was obtained. Roll the paper at 100 ° C. roll speed, 320 mm / min speed, load 288
The mixture was heated and compressed by a g-cm super calender until the water content became 5%, and then the density, transparency and disintegration were measured.
【００２２】[0022]
【比較例１】ＮＢＫＰを１０００ｋｇ離解した３％のパ
ルプスラリーをｐＨ５．５、温度２５℃にした後、ダブ
ルディスクリファイナーの負荷５０アンペアで１３０分
叩解した。叩解原料に対し低融点コーン澱粉（三和澱粉
株式会社製 ＰＰＳ−４）を１０重量％添加後、抄紙ド
ライヤー温度１００℃で水分３２％で製品米坪４０ｇ／
ｍ２の抄紙巻取を得た。抄紙巻取をロール温度１００
℃、速度３２０ｍｍ／分、荷重２８８ｇ−ｃｍのスーパ
ーキャレンダーにて水分５％になるまで加熱、圧縮し、
後、密度、透明度、離解性を測定した。COMPARATIVE EXAMPLE 1 A 3% pulp slurry obtained by disintegrating 1000 kg of NBKP was adjusted to pH 5.5 and a temperature of 25 ° C., and beaten for 130 minutes with a load of 50 amps of a double disc refiner. After adding 10% by weight of low melting point corn starch (PPS-4 manufactured by Sanwa Starch Co., Ltd.) to the beating raw material, the product was dried at a papermaking dryer temperature of 100 ° C. and water content was 32%, and the product rice tsubo was 40 g / g.
to obtain a paper take-up of m 2. Roll the paper at a roll temperature of 100
℃, speed 320mm / min, heated and compressed in a super calender with a load of 288g-cm until the water content became 5%,
Thereafter, the density, transparency and disintegration were measured.
【００２３】[0023]
【比較例２】ＮＢＫＰを１０００ｋｇ離解した３％のパ
ルプスラリーをｐＨ５．５、温度２５℃にした後、ダブ
ルディスクリファイナーの負荷５４アンペアで１８０分
叩解した後、水分３２％で製品米坪４０ｇ／ｍ２の抄紙
巻取を得た。抄紙巻取をロール温度１００℃、速度３２
０ｍｍ／分、荷重２８８ｇ−ｃｍのスーパーキャレンダ
ーにて水分５％になるまで加熱、圧縮し、後、密度、透
明度、離解性を測定した。[Comparative Example 2] A 3% pulp slurry obtained by disintegrating 1000 kg of NBKP was adjusted to pH 5.5 and a temperature of 25 ° C, beaten for 180 minutes with a load of 54 amps of a double disc refiner, and then dried at 32% water to obtain 40 g / g of product rice tsubo. to obtain a paper take-up of m 2. Roll the paper at a roll temperature of 100 ° C and a speed of 32.
The mixture was heated and compressed by a super calender with a load of 288 g-cm at 0 mm / min until the water content became 5%, and then the density, transparency and disintegration were measured.
【００２４】[0024]
【比較例３】窓付封筒の透明部分に使用しているフィル
ムを、２ｃｍ角にスリットし離解性を観察した。Comparative Example 3 The film used for the transparent part of the envelope with a window was slit into 2 cm square to observe the disintegration.
【００２５】[0025]
【比較例４】窓付封筒の透明部分に使用している紙の、
合成樹脂を塗布している部分を２ｃｍ角にスリットし離
解性を観察した。[Comparative Example 4] The paper used for the transparent portion of the envelope with a window,
The portion where the synthetic resin was applied was slit into 2 cm squares, and the disintegration was observed.
【００２６】[0026]
【表１】 表中、密度は米坪を厚さで除した。透明度は村上式透明
度計を使用した。叩解電力消費量は比較例１を１００％
とした相対比較した。叩解刃摩耗度は比較例１を１００
％とした相対比較した。ドライヤ汚れは抄紙中のドライ
ヤ汚れを目視観察した。離解度は家庭用ミキサーを用い
試料濃度１％で５分間攪拌後、離解性を目視観察した。[Table 1] In the table, the density is obtained by dividing rice tsubo by thickness. The transparency was measured using a Murakami transparency meter. Beating power consumption is 100% of Comparative Example 1.
Was compared. The beating blade abrasion degree was 100 in Comparative Example 1.
%. As for the dryer stain, the dryer stain in papermaking was visually observed. The degree of disaggregation was measured by using a home mixer at a sample concentration of 1% for 5 minutes and then visually observed for disintegration.
【００２７】[0027]
【発明の効果】以上、詳述したように、セルロース分解
酵素（セルラーゼ）をパルプの叩解工程で対パルプ０．
０１〜０．２重量％添加し、これをｐＨ５〜８で叩解す
る事により、パルプの膨潤を促進し叩解効率を高めて叩
解電力を抑制できる。さらに、パルプが十分に水和され
るためスーパーキャレンダー処理により極めて透明度の
高い紙が得られるなど、品質の良いパルプの調成が可能
で、離解性に優れたパルプを提供できる等の顕著な作用
効果を奏する。As described in detail above, cellulose degrading enzyme (cellulase) is used in a pulp beating process in a pulp beating process.
By adding 0.1 to 0.2% by weight and beating it at pH 5 to 8, swelling of the pulp is promoted, the beating efficiency is increased, and the beating power can be suppressed. Furthermore, since the pulp is sufficiently hydrated, a paper with extremely high transparency can be obtained by super calendering. It has an effect.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大平 安夫 東京都江戸川区東篠崎町２丁目３番２号 本州製紙株式会社開発研究所内 Ｆターム(参考） 4L055 AA02 AC06 AG32 AH20 BB03 BE02 EA08 EA11 EA29 EA32 FA20 FA30 GA05 GA41 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasuo Ohira 2-3-2 Higashishinozaki-cho, Edogawa-ku, Tokyo F-term in Honshu Paper R & D Laboratory (reference) 4L055 AA02 AC06 AG32 AH20 BB03 BE02 EA08 EA11 EA32 EA32 FA20 FA30 GA05 GA41
Claims (2)
程で、対パルプ０．０１〜０．２重量％添加処理して成
る、透明度が８５．７以上、密度が１．３５０以上であ
ることを特徴とする高透明度紙。1. A pulp beating step in which a cellulose-degrading enzyme is added in an amount of 0.01 to 0.2% by weight based on pulp in a beating process of pulp. Characterized high transparency paper.
５００〜３０００Ｕ／ｍｌであることを特徴とする請求
項１記載の高透明度紙。2. A cellulolytic enzyme having a CMC activity of 2
2. The highly transparent paper according to claim 1, wherein the amount is 500 to 3000 U / ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001365356A JP2002180397A (en) | 2001-10-25 | 2001-10-25 | High-transparency paper sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001365356A JP2002180397A (en) | 2001-10-25 | 2001-10-25 | High-transparency paper sheet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34661893A Division JP3282168B2 (en) | 1993-12-22 | 1993-12-22 | Manufacturing method of high transparency paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002180397A true JP2002180397A (en) | 2002-06-26 |
Family
ID=19175390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001365356A Pending JP2002180397A (en) | 2001-10-25 | 2001-10-25 | High-transparency paper sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002180397A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077333A (en) * | 2004-09-07 | 2006-03-23 | Daio Paper Corp | Wrapping paper for see-through package |
| JP2008075214A (en) * | 2006-09-21 | 2008-04-03 | Kimura Chem Plants Co Ltd | Method for producing nanofiber and nanofiber |
| JP2008169497A (en) * | 2007-01-10 | 2008-07-24 | Kimura Chem Plants Co Ltd | Method for producing nanofiber, and nanofiber |
| JP2009526140A (en) * | 2006-02-08 | 2009-07-16 | エステイーエフアイ−パツクフオルスク・エイ・ビー | Process for producing microfibrillated cellulose |
| JP2012046846A (en) * | 2010-08-27 | 2012-03-08 | Oji Paper Co Ltd | Method for producing microfibrous cellulose |
| CN110552234A (en) * | 2018-05-30 | 2019-12-10 | 华南理工大学 | Super folding-resistant, high-haze and high-transparency paper and preparation method thereof |
-
2001
- 2001-10-25 JP JP2001365356A patent/JP2002180397A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077333A (en) * | 2004-09-07 | 2006-03-23 | Daio Paper Corp | Wrapping paper for see-through package |
| JP2009526140A (en) * | 2006-02-08 | 2009-07-16 | エステイーエフアイ−パツクフオルスク・エイ・ビー | Process for producing microfibrillated cellulose |
| US8546558B2 (en) | 2006-02-08 | 2013-10-01 | Stfi-Packforsk Ab | Method for the manufacture of microfibrillated cellulose |
| JP2008075214A (en) * | 2006-09-21 | 2008-04-03 | Kimura Chem Plants Co Ltd | Method for producing nanofiber and nanofiber |
| JP2008169497A (en) * | 2007-01-10 | 2008-07-24 | Kimura Chem Plants Co Ltd | Method for producing nanofiber, and nanofiber |
| JP2012046846A (en) * | 2010-08-27 | 2012-03-08 | Oji Paper Co Ltd | Method for producing microfibrous cellulose |
| CN110552234A (en) * | 2018-05-30 | 2019-12-10 | 华南理工大学 | Super folding-resistant, high-haze and high-transparency paper and preparation method thereof |
| CN110552234B (en) * | 2018-05-30 | 2022-02-15 | 华南理工大学 | Super folding-resistant, high-haze and high-transparency paper and preparation method thereof |
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