JPH04202892A - Pulp sheet paper - Google Patents
Pulp sheet paperInfo
- Publication number
- JPH04202892A JPH04202892A JP33179990A JP33179990A JPH04202892A JP H04202892 A JPH04202892 A JP H04202892A JP 33179990 A JP33179990 A JP 33179990A JP 33179990 A JP33179990 A JP 33179990A JP H04202892 A JPH04202892 A JP H04202892A
- Authority
- JP
- Japan
- Prior art keywords
- pulp
- algae
- raw material
- paper
- wood
- 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
- 241000195493 Cryptophyta Species 0.000 claims abstract description 27
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 229920002678 cellulose Polymers 0.000 claims abstract description 15
- 239000001913 cellulose Substances 0.000 claims abstract description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 11
- 229920002488 Hemicellulose Polymers 0.000 claims abstract description 10
- 210000002421 cell wall Anatomy 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 abstract description 6
- 241000195628 Chlorophyta Species 0.000 abstract description 5
- 230000000996 additive effect Effects 0.000 abstract description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 14
- 229920005610 lignin Polymers 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 239000002023 wood Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000218922 Magnoliophyta Species 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- 241000609240 Ambelania acida Species 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 241000206572 Rhodophyta Species 0.000 description 2
- 241000199474 Tribonema Species 0.000 description 2
- 239000010905 bagasse Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000006248 Broussonetia kazinoki Species 0.000 description 1
- 235000006716 Broussonetia kazinoki Nutrition 0.000 description 1
- 241000499536 Chaetophora <green alga> Species 0.000 description 1
- 241001478806 Closterium Species 0.000 description 1
- 241000029059 Closterium gracile Species 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 241000192700 Cyanobacteria Species 0.000 description 1
- 241001265525 Edgeworthia chrysantha Species 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は紙及び紙工製品の原料に使用される内添剤添加
パルプシート紙に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to internally additive-added pulp sheet paper used as a raw material for paper and paper products.
（従来の技術）
従来よりパルプ原料としては、針葉樹、広葉樹を原料と
する木材パルプ及びこうぞ、みつまた等の靭皮繊維等が
主に使用されてきたか、昨今では製造コスト面から木材
パルプかその大半を占めている。(Prior art) Conventionally, wood pulp made from conifers and hardwoods, and bast fibers such as Kozo and Mitsumata have been mainly used as pulp raw materials. It accounts for the majority.
木材パルプの製造に当っては、その製造法より機械パル
プ（ＧＰ、 ＴＭＰ）と化学パルプ（ＳＰ、 Ｎ５ＳＣ
Ｐ。When producing wood pulp, there are two types of pulp: mechanical pulp (GP, TMP) and chemical pulp (SP, N5SC).
P.
ＫＰ）に類別されるか、その原理とする所は、木材の構
造体の一部を構成し、セルロースやヘミセルロースとい
った繊維素を結合し、木材を剛性のある集合体とする為
に、通常木材に２０〜３５％含有されているリグニンを
機械的又は化学的に分離、除去することにより、セルロ
ース、ヘミセルロースを回収をすることである。It is classified as KP), and its principle is that it forms part of the structure of wood, binds cellulose such as cellulose and hemicellulose, and makes wood a rigid aggregate. Cellulose and hemicellulose are recovered by mechanically or chemically separating and removing lignin, which is contained in 20 to 35% of lignin.
一方木材の資源的制約や生産コスト面から、ワラ（稲、
麦、燕麦等）や通称バガスと呼ばれている砂糖キビのし
ぼりカス等が木材パルプの代替品として使用されている
が、ワラ、バガスのリグニン含有量はそれぞれ１２〜１
４％、１９〜２１％゛であり、木材のそれに比べると低
いものの、実際木材と同様のパルプ化操作によりパルプ
か製造されている。また木材を対象としたバイオバルビ
イングといった微生物を用いる脱リグニンプロセスも研
究開発中であるが、未だ開発段階の域を脱していない。On the other hand, due to resource constraints and production costs, straw (rice, rice, etc.)
(wheat, oat, etc.) and the squeezed residue of sugar millet, commonly known as bagasse, are used as substitutes for wood pulp, but the lignin content of straw and bagasse is 12 to 1, respectively.
4% and 19 to 21%, which is lower than that of wood, but pulp is actually produced using the same pulping process as wood. Additionally, delignification processes using microorganisms such as biobulbbing for wood are currently under research and development, but they are still in the development stage.
以上のようにパルプ製造の大半のエネルギーは、リグニ
ン除去に費やされていると云っても過言ではない。非木
材系パルプ製造法として、リグニンを原料中に実質的に
含まない藻体を原料とし、これを物理的若しくは化学的
に処理してパルプ材源となし、セルロース若しくはヘミ
セルロースを単離する方法か挙げられる。As mentioned above, it is no exaggeration to say that most of the energy in pulp production is spent on removing lignin. As a non-wood pulp manufacturing method, algae containing substantially no lignin is used as a raw material, and this is processed physically or chemically to become a pulp material source, and cellulose or hemicellulose is isolated. Can be mentioned.
これはスビロギラ、カエトフォラ、ウロツリクス、コラ
リナ、トリボネマ等の緑藻類、紅藻類、黄藻類等の藻類
を原料として、これらを化学処理してパルプを製造する
方法（特開昭５４−３８９０１号公報）や、オオカナダ
藻等の被子植物を物理的処理と化学的処理を併用してパ
ルプを製造する方法（特開昭５５−１３１９号公報）や
淡水性藻類のうち藍藻類、黄色鞭毛植物、緑藻植物から
藻体の長い藻類としてヒビミドロ属、アオミドロ属、ア
ミミドロ属、トリボネマ属を用いて、光照射や化学的に
漂白して紙状シートを単独、若しくはその他のパルプ材
源と混抄する方法（特公昭６４−５２０号公報）がある
。This method uses algae such as green algae, red algae, and yellow algae such as Subilogilla, Chaetophora, Urothrix, Coralina, and Tribonema as raw materials and chemically processes them to produce pulp (Japanese Unexamined Patent Publication No. 54-38901), A method for producing pulp by combining physical and chemical treatment of angiosperms such as Canada algae (Japanese Patent Application Laid-Open No. 1319/1982) A method in which long-bodied algae such as Hibimidoro, Aomidoro, Amymidoro, and Tribonema are used to form paper-like sheets by irradiation with light or chemical bleaching, either alone or in combination with other pulp material sources (Special Publication No. 1983- No. 520).
（発明が解決しようとする課題）
従来の木材を製造原料とするパルプ製造法においては、
木材から取得できるパルプ量は、機械パルプで９０％、
化学パルプでは５０％である。(Problem to be solved by the invention) In the conventional pulp manufacturing method using wood as a manufacturing raw material,
The amount of pulp that can be obtained from wood is 90% mechanical pulp.
For chemical pulp, it is 50%.
機械パルプの収率は９０％と比較的高いか、木材のリグ
ニンを機械的に削り取るエネルギー消費が、２４００Ｋ
Ｗｈ／Ｔｏｎパルプと云われており、エネルギー多消費
型のパルプ製造法であり、且つリグニンかパルプに付着
、残存し、上級品パルプの製造ではない為、日本国内で
の機械パルプのシェアは１０％弱である。The yield of mechanical pulp is relatively high at 90%, and the energy consumption for mechanically scraping the lignin from wood is 2400K.
It is called Wh/Ton pulp, and it is an energy-intensive pulp manufacturing method, and lignin adheres to and remains in the pulp, so it is not a high-quality pulp product, so the share of mechanical pulp in Japan is 10. It is a little less than %.
なお、化学パルプは品質もよく、木材中のリグニンをパ
ルプ製造時に熱源として利用する等の工夫がなされた結
果、エネルギー原単位のよいパルプ製造法として位置付
けられるが、パルプ収率が５０％と低い点が問題であっ
た。Chemical pulp is of good quality, and as a result of innovations such as using the lignin in the wood as a heat source during pulp production, it is positioned as a pulp production method with good energy consumption, but the pulp yield is low at 50%. That was the problem.
一方地球温暖化問題の主原因とされるＣＯ２の増加は、
近年の化石燃料の消費量の増大と密接な関係が指摘され
ている一方、ＣＯ□の吸収源としての森林伐採もその一
端をになっていることは否定できない。On the other hand, the increase in CO2, which is considered the main cause of global warming,
While it has been pointed out that there is a close relationship with the recent increase in fossil fuel consumption, it cannot be denied that deforestation, which serves as a source of CO□ absorption, also plays a role.
更にパルプ材源の非木材化対策として、オオカナダ藻等
の被子植物や一部の緑藻、藍藻、黄色鞭毛藻、紅藻を原
料とする方法が取上げられているが、これらの方法では
、従来のパルプ製造法と同様の観点において原料とする
藻体（被子植物及びその他の藻類）を物理的及び／又は
化学的に処理し、パルプを精製する方法か採用されてい
るため、エネルギー消費やパルプ収率の面から従来の木
材パルプ製造法と同様のエネルギー多消費、パルプ収率
の低下と云った側面がある。Furthermore, as a non-wood pulp material source, methods using angiosperms such as Canada algae, some green algae, blue-green algae, xanthoflagellate algae, and red algae have been proposed, but these methods In the same way as the pulp manufacturing method, the raw material algae (angiosperms and other algae) are physically and/or chemically treated to refine the pulp, reducing energy consumption and pulp yield. In terms of yield, this method consumes a lot of energy and reduces pulp yield, similar to conventional wood pulp production methods.
従来木材パルプを抄紙するに際して、パルプ白色度の向
上、又は重質感を出すために、内添剤として炭酸カルシ
ウム等を添加する方法がとられている。しかしながら、
これらの内添剤の添加により、パルプシート強度の低下
があり、添加剤量に限界があった。またバインダー等の
副添加物を必要とするなどの問題点があった。Conventionally, when making paper from wood pulp, a method has been adopted in which calcium carbonate or the like is added as an internal additive in order to improve the whiteness of the pulp or create a heavy texture. however,
Addition of these internal additives lowers the strength of the pulp sheet, and there is a limit to the amount of additives. Further, there were other problems such as the need for sub-additives such as binders.
細胞壁にセルロースを含む藻類としては緑藻類、及び抽
水植物、浮葉植物、沈水植物、浮漂植物が挙げられる。Examples of algae containing cellulose in the cell wall include green algae, as well as emergent plants, floating plants, submerged plants, and floating plants.
そしてこれらの藻体は、実質的にリグニンを含まず、比
較的多くのセルロースか含まれており、従来の木材パル
プに比較して内添剤による抄紙したパルプシートの強度
低下が少なく、従って添加剤濃度を高くとることができ
、またバインダー等の副添加物を必要としないなどの利
点がある。These algae contain virtually no lignin and contain a relatively large amount of cellulose, and compared to conventional wood pulp, internal additives cause less strength loss in paper-made pulp sheets, and therefore additives are less likely to reduce the strength of paper-made pulp sheets. It has the advantage of being able to maintain a high agent concentration and not requiring sub-additives such as binders.
本発明は細胞壁の成分にセルロース及びヘミセルロース
を含む藻類をパルプ原料とすることにより、前記従来の
課題を解決し得るパルプシート紙を提供せんとするもの
である。The present invention aims to provide a pulp sheet paper that can solve the above-mentioned conventional problems by using algae containing cellulose and hemicellulose as cell wall components as a pulp raw material.
（課題を解決するための手段）
このため本発明は、細胞壁の成分にセルロース及びヘミ
セルロースを含む藻類をパルプ原料とし、炭酸カルシウ
ム粉末等の内添剤を添加して製造するようにしてなるも
ので、これを課題解決のための手段とするものである。(Means for Solving the Problem) Therefore, the present invention uses algae containing cellulose and hemicellulose as cell wall components as a pulp raw material, and manufactures the pulp by adding internal additives such as calcium carbonate powder. , this is a means to solve problems.
（作用）
本発明のパルプシート紙は、従来の木材パルプを原料と
する場合に比べて添加剤の濃度を高くとることができ、
しかもバインダー等の副添加物を必要としない利点かあ
り、添加剤濃度か高い分質感かあり、藻紙化された特殊
用紙の製造か可能である。(Function) The pulp sheet paper of the present invention can have a higher concentration of additives than when using conventional wood pulp as a raw material,
Moreover, it has the advantage of not requiring sub-additives such as binders, has a high additive concentration, has a high texture, and can produce special paper made of alkaline paper.
（実施例）
以下本発明の実施例を詳細に説明する。本発明は、木材
パルプの製造工程においてエネルギーを多く消費し、且
つパルプ収率を低下させる主要原因となっているリグニ
ンを含有せずに、その細胞壁にセルロースを含有する藻
体を用いることにより、リグニン除去に使用するエネル
ギー消費及びパルプロスを実質的に零にすることができ
る。(Example) Examples of the present invention will be described in detail below. The present invention uses algae that do not contain lignin, which consumes a lot of energy in the wood pulp production process and is the main cause of reducing pulp yield, but whose cell walls contain cellulose. Energy consumption and pulp loss used for lignin removal can be reduced to substantially zero.
また細胞壁にセルロースを含有し、その藻体長が長く藻
体長／藻体幅の比か１０〜２００の範囲のものを選定し
た。その藻の例としては、緑藻間Ｃ１ｏｓｔｅｒｉｕｍ
属のＣｌｏｓｔｅｒｉｕｍ ｇｒａｃｉｌｅ、 Ｃ１ｏ
ｓｔ−ｅｒｉｕｍ ａｃｉｃｕｌａｒｅ ｖａｒｌｓｕ
ｂｐｒｏｎｕｍｌＣｌｏｓｔｅｒｉｕｍｃａｌｏｓｐｏ
ｒｕｍ ｖａｒ、 ｃａｌｏｓｐｏｒｕｍ等が挙げられ
るが、何らこれに限定されるものではなく、人為的処理
を施すことなく藻体長が長く、藻体長／藻体幅比を満足
するものなら何れでも良い。In addition, algae containing cellulose in the cell wall and having a long algal body length with a ratio of algal body length/algal body width of 10 to 200 were selected. Examples of such algae include the green algae C1osterium
Genus Closterium gracile, C1o
st-erium aciculare varlsu
bpronumlClosteriumcalospo
Examples include rum var, calosporum, etc., but the present invention is not limited thereto, and any algae may be used as long as it has a long algal body length without being subjected to artificial treatment and satisfies the ratio of algal body length/algal body width.
前記藻体は細胞壁にセルロース、ヘミセルロースを含有
しており、これをそのまま抄紙したり、木材パルプと混
抄てきると共に、微粉末状の炭酸カルシウム等の内添剤
を、バインダーなどの側温加物を加えることなく、通常
の木材パルプに比較して多量に添加することがてきる。The algae contain cellulose and hemicellulose in their cell walls, and they can be made into paper as is or mixed with wood pulp, and internal additives such as finely powdered calcium carbonate may be added to side-warming materials such as binders. It is possible to add a large amount compared to ordinary wood pulp without adding anything.
以下更に具体例をもって本発明の構成を詳細に説明する
。The structure of the present invention will be explained in detail below using specific examples.
具体例
Ｃｌｏｓｔｅｒｉｕｍ ａｃｉｃｕｌａｒｅ ｖａｒ、
ｓｕｂｐｒｏｎｕｍをＮＨ。Specific examples: Closterium aciculare var,
NH subpronum.
ＮＯｘ ０．５ｇ／１ＳＫ２ＨＰＯ４０，１ｇ＃’、
ＭｇＳＯ４・７Ｈ２００゜０５ｇ＃’、 ＦｅＣ１５Ｏ
，５ｍｇ＃’の培地で２５°Ｃ，７０００ルツクスの照
度下、炭酸ガスを０．５％含有する空気を通気させつつ
、明暗１２時間サイクルの条件下で培養を行ない、５０
０ｇの藻体を湿潤状態で取得した。NOx 0.5g/1SK2HPO40,1g#',
MgSO4・7H200゜05g#', FeC15O
, 5mg#' of culture medium at 25°C, under illumination of 7000 lux, aerated with air containing 0.5% carbon dioxide gas, and under a 12-hour light/dark cycle.
0 g of algal bodies were obtained in a wet state.
本藻体を一部サンプルとして水分測定したところ、５０
０ｇの藻体は３０ｇ乾体を含むことが判明した。本藻体
を５０ｇ（転体て３ｇ）づつに分け、これに内添剤とし
て炭酸カルシウム（平均粒径／μ）を、第１表に示すよ
うに抄紙後の乾量基準で、０％、２％、５％、１５％、
３０％、４０％となる量を添加して、再度水を加えＪ
ｌ５−Ｐ−８２０９に準じて手抄き紙を坪量６０ｇ／ｒ
ｒｆを基準として６種のパルプシートを製造した。When we measured the moisture content using a sample of this algae, we found that it was 50%
It was found that 0 g of algal bodies contained 30 g of dry bodies. Divide this algae into 50g portions (3g after inversion) and add calcium carbonate (average particle size/μ) as an internal additive to the algae, as shown in Table 1, on a dry weight basis after papermaking, 0%, 2%, 5%, 15%,
Add the amount to become 30% and 40%, and add water again.
Handmade paper with basis weight 60g/r according to l5-P-8209
Six types of pulp sheets were manufactured based on rf.
一方比較例として広葉樹パルプを乾燥重量にて乾量で３
ｇづつ取り、これに前記具体例の藻体と同様に炭酸カル
シウム粉末を添加し、再度水を加えて解砕し、同様にし
て手抄き紙６種を製造した。その結果を第１表に示す。On the other hand, as a comparative example, hardwood pulp was
Calcium carbonate powder was added thereto in the same manner as the algae in the specific example, and water was added again to crush the algae, and six types of handmade paper were produced in the same manner. The results are shown in Table 1.
第１表に示す如（、本実施例では粉末状炭酸カルシウム
添加３０ｗｔ％程度までは強度劣化も少なく、紙状シー
トとして製造可能なことか分かった。本パルプシート紙
は坪量一定として製造したので、密度上昇分だけ薄紙化
されており、また質感も有している。これに対し比較例
では、炭酸カルシウム添加５ｗｔ％が限度であり、それ
以上では紙状シート形成がなされない状態であった。As shown in Table 1, in this example, there was little strength deterioration when powdered calcium carbonate was added up to about 30 wt%, and it was found that it could be manufactured as a paper-like sheet.This pulp sheet paper was manufactured with a constant basis weight. Therefore, the paper is made thinner by the increase in density, and also has a texture.On the other hand, in the comparative example, the calcium carbonate addition is at the limit of 5 wt%, and if it is more than that, the paper-like sheet cannot be formed. Ta.
第 １ 表
（発明の効果）
以上詳細に説明した如く本発明は構成されているので、
木材パルプ製造プロセスで行なわれる機械的及び／又は
化学的リグニン除去操作が不要となる。その結果、機械
的、化学的エネルギー損失かなく、またリグニン除去が
不要な為パルプ損失かない。Table 1 (Effects of the Invention) Since the present invention is configured as explained in detail above,
Mechanical and/or chemical lignin removal operations performed in the wood pulp manufacturing process are not required. As a result, there is no mechanical or chemical energy loss, and since lignin removal is not required, there is no pulp loss.
更に本発明によると、細胞壁にセルロース及びヘミセル
ロースを含有する藻体をパルプ原料とし、粉末状炭酸カ
ルシウム等内添剤を添加して製造したパルプシート紙は
、従来の木材パルプを原料とする場合に比較して、添加
剤の濃度を高くとることができ、またバインダー等の側
温加物を必要としない経済的利点かあり、添加剤濃度が
高い分質感があり、薄紙化された特殊用紙の製造か可能
となる。Furthermore, according to the present invention, pulp sheet paper manufactured by using algae containing cellulose and hemicellulose in the cell wall as a pulp raw material and adding internal additives such as powdered calcium carbonate is different from that when using conventional wood pulp as a raw material. In comparison, it is possible to have a high concentration of additives, and there is an economical advantage of not requiring side-warming additives such as binders. Manufacture is possible.
Claims (1)
類をパルプ原料とし、炭酸カルシウム粉末等の内添剤を
添加して製造することを特徴とするパルプシート紙。A pulp sheet paper characterized in that it is produced by using algae whose cell walls contain cellulose and hemicellulose as a pulp raw material and adding internal additives such as calcium carbonate powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33179990A JPH04202892A (en) | 1990-11-29 | 1990-11-29 | Pulp sheet paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33179990A JPH04202892A (en) | 1990-11-29 | 1990-11-29 | Pulp sheet paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04202892A true JPH04202892A (en) | 1992-07-23 |
Family
ID=18247772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33179990A Pending JPH04202892A (en) | 1990-11-29 | 1990-11-29 | Pulp sheet paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04202892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005047598A1 (en) * | 2003-11-13 | 2005-05-26 | Park, Jun-Hyuk | Pulp and paper made from rhodophyta and manufacturing method thereof |
| US9074324B2 (en) | 2013-06-10 | 2015-07-07 | Kimberly-Clark Worldwide, Inc. | Layered tissue structures comprising macroalgae |
-
1990
- 1990-11-29 JP JP33179990A patent/JPH04202892A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005047598A1 (en) * | 2003-11-13 | 2005-05-26 | Park, Jun-Hyuk | Pulp and paper made from rhodophyta and manufacturing method thereof |
| US7622019B2 (en) | 2003-11-13 | 2009-11-24 | Hack-Churl You | Pulp and paper made from Rhodophyta and manufacturing method thereof |
| US9074324B2 (en) | 2013-06-10 | 2015-07-07 | Kimberly-Clark Worldwide, Inc. | Layered tissue structures comprising macroalgae |
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