JPH0390689A - Production of modified pulp - Google Patents
Production of modified pulpInfo
- Publication number
- JPH0390689A JPH0390689A JP22460489A JP22460489A JPH0390689A JP H0390689 A JPH0390689 A JP H0390689A JP 22460489 A JP22460489 A JP 22460489A JP 22460489 A JP22460489 A JP 22460489A JP H0390689 A JPH0390689 A JP H0390689A
- Authority
- JP
- Japan
- Prior art keywords
- water
- substance
- lignocellulosic material
- insoluble
- unpulped
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000000126 substance Substances 0.000 claims abstract description 46
- 239000007787 solid Substances 0.000 claims abstract description 24
- 239000012978 lignocellulosic material Substances 0.000 claims abstract description 20
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- 238000004537 pulping Methods 0.000 claims abstract description 9
- 230000003834 intracellular effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 47
- 239000000463 material Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 210000003093 intracellular space Anatomy 0.000 claims description 9
- 229910010272 inorganic material Inorganic materials 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- 239000011147 inorganic material Substances 0.000 claims description 2
- 238000000151 deposition Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 description 18
- 238000011282 treatment Methods 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- 239000000835 fiber Substances 0.000 description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 210000004027 cell Anatomy 0.000 description 7
- 239000000123 paper Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 150000002484 inorganic compounds Chemical class 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 phosphate Chemical compound 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 208000004434 Calcinosis Diseases 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 241000209504 Poaceae Species 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- WAKZZMMCDILMEF-UHFFFAOYSA-H barium(2+);diphosphate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O WAKZZMMCDILMEF-UHFFFAOYSA-H 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 238000010297 mechanical methods and process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 240000000731 Fagus sylvatica Species 0.000 description 1
- 235000010099 Fagus sylvatica Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241000219492 Quercus Species 0.000 description 1
- 235000016976 Quercus macrolepis Nutrition 0.000 description 1
- 240000000111 Saccharum officinarum Species 0.000 description 1
- 235000007201 Saccharum officinarum Nutrition 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- LYSTYSFIGYAXTG-UHFFFAOYSA-L barium(2+);hydrogen phosphate Chemical compound [Ba+2].OP([O-])([O-])=O LYSTYSFIGYAXTG-UHFFFAOYSA-L 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical class [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Paper (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、改質パルプの製造方法に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for producing modified pulp.
さらに詳しく述べるならば、本発明は、バルブ繊維の少
なくとも細胞内空隙に、実質的に水不溶性の固体無機物
質を保持していて、製紙原料、成型材料、および機能性
材料などとして有用な改質パルプを製造する方法に関す
るものである。More specifically, the present invention provides a modified material that retains a substantially water-insoluble solid inorganic substance in at least the intracellular spaces of the valve fiber, and is useful as a raw material for paper manufacturing, a molding material, a functional material, etc. The present invention relates to a method for producing pulp.
木材の内部に固体状の無機物質を保持させることにより
、木材を改質しようとする試みとしては、各種の無機塩
類による木材の不燃化の技術が知られている。すなわち
、リン酸塩などの難燃止剤水溶液中に木材を浸漬して、
木材の内部空隙中に薬液を浸透含浸させて、木材を難燃
化する技術が知られている。As an attempt to modify wood by retaining a solid inorganic substance inside the wood, techniques for making wood nonflammable using various inorganic salts are known. That is, by soaking wood in an aqueous solution of flame retardant such as phosphate,
A known technique is to make wood flame retardant by penetrating and impregnating a chemical solution into the internal voids of the wood.
また、木材の内部空腔に、固体微粒子状の無機物質を導
入する方法が特開昭６１−２４６００２号に開示されて
おり、また、木材の内部空隙に二酸化炭素を充填保持さ
せ、この二酸化炭素との反応を利用して水不溶性の固体
無機化合物を木材内部において生成させる方法が特開昭
６２−２５００７号に開示されている。更に複数の水溶
性無機物質を木材の空隙内部で反応させて不溶性の固体
無機物質を木材内部において生成固定する方法などが特
開昭６１−２４６００３号により開示されている。In addition, a method of introducing solid particulate inorganic substances into the internal cavities of wood is disclosed in JP-A-61-246002. Japanese Patent Laid-Open No. 62-25007 discloses a method of producing a water-insoluble solid inorganic compound inside wood by using a reaction with wood. Further, JP-A No. 61-246003 discloses a method of producing and fixing an insoluble solid inorganic substance inside wood by reacting a plurality of water-soluble inorganic substances inside the pores of the wood.
更にまた、木材を繊維化して得られたバルブに、無機塩
類による処理をほどこし、そのバルブから不燃化された
紙を製造する技術も知られている。Furthermore, a technique is known in which a bulb obtained by turning wood into fibers is treated with inorganic salts to produce nonflammable paper from the bulb.
木材バルブ繊維のルーメン内に、水中で無機填料を充填
し、この改質バルブを製紙目的に供しようとする技術は
米国特許第４．５１０．０２０号などにより知られてい
るが、この方法では、リグノセルロース材料をパルプ化
した後、得られたバルブに、上記処理を施すものであっ
て、バルブ繊維の表面も改質されるという点で本発明の
方法とは根本的に異なるものである。A technique for filling the lumen of wood valve fibers with an inorganic filler in water and using this modified valve for paper manufacturing purposes is known from U.S. Patent No. 4.510.020, etc.; , which involves pulping a lignocellulose material and then subjecting the resulting bulb to the above treatment, which is fundamentally different from the method of the present invention in that the surface of the bulb fiber is also modified. .
本発明は、細胞内空隙中に実質的に水不溶性の固体無機
物質を含浸保持しており、しかし、バルブ繊維表面は未
改善バルブと同様の状態に保持されている改質パルプを
比較的簡単な操作により、効率よく、かつ高歩留りで製
造する方法を提供しようとするものである。The present invention provides a relatively simple method for producing modified pulp in which the intracellular spaces are impregnated with substantially water-insoluble solid inorganic substances, but the surface of the bulb fibers is maintained in a state similar to that of unimproved bulbs. The purpose of this invention is to provide a method for manufacturing with high efficiency and high yield through simple operations.
本発明の改質パルプの製造方法は、未バルブ化リグノセ
ルロース材料の細胞内空隙中に、実質的に水に不溶性の
少なくとも１種の無機物質を沈着保持させ、その後、こ
の固体無機物質含有リグノセルロース材料にパルプ化操
作を施すことを特徴とするものである。The method for producing modified pulp of the present invention involves depositing and retaining at least one substantially water-insoluble inorganic substance in the intracellular spaces of an unvalved lignocellulosic material, and then depositing and retaining this solid inorganic substance-containing lignocellulose material. It is characterized by subjecting cellulose material to a pulping operation.
本発明に用いられる未パルプ化リグノセルロース材料は
、それを構成する細胞が内部に空腔を有するものであれ
ばよく、その種類に格別の限定はない。即ち、ブナ、カ
バ、ナラ、ユーカリ、およびポプラ、などのような広葉
樹、モミ、マツ、トウヒ、およびスギなどの針葉樹、並
びにイネ、タケ、サトウキビ、などの草類などを使用す
ることができる。また、この材料の形態も、パルプ化に
適したものであればよく、特に制限はない。即ち、チッ
プ、丸太、ソーダスト、および木粉などの形状のものを
使用することができる。これらの種類および形態を有す
るものの中で、本発明方法に好適なものは、木材のチッ
プである。The unpulped lignocellulose material used in the present invention is not particularly limited as long as the cells constituting it have voids inside. That is, broad-leaved trees such as beech, birch, oak, eucalyptus, and poplar, coniferous trees such as fir, pine, spruce, and cedar, and grasses such as rice, bamboo, and sugar cane can be used. Further, the form of this material is not particularly limited as long as it is suitable for pulping. That is, shapes such as chips, logs, sawdust, and wood flour can be used. Among these types and forms, wood chips are suitable for the method of the present invention.
本発明において、リグノセルロース材料の細胞内空隙と
は、主としてリグノセルロース材料を構成する細胞内の
空隙、即ち、針葉樹材においては仮導管や、放射細胞な
どの細胞の細胞内腔（ルーメン）を包含し、また、広葉
樹材においては、導管や、木Ｉ！維、あるいは放射細胞
などの木材を構成する細胞のルーメンを包含するもので
あり、硬質繊維の原料となる草類においては、維管束の
ルーメンを包含するものである。In the present invention, the intracellular pores of a lignocellulosic material mainly include the pores within the cells constituting the lignocellulosic material, i.e., in the case of softwood materials, include the intracellular cavities (lumens) of cells such as tracheids and radial cells. Also, in hardwood materials, conduits and wood I! It includes the lumen of cells that make up wood, such as fibers or radial cells, and in grasses that are raw materials for hard fibers, it includes the lumen of vascular bundles.
本発明において、未バルブ化リグノセルロース材料の細
胞内空隙中に保持させる固体無機物質としては、未バル
ブ化リグノセルロース材料の内部に導入沈着させること
が可能なものであればよく、その種類に格別の限定はな
い。このような固体無機物質としては各種の、実質的に
水不溶性の金属塩、錯塩、酸化物、金属単体および合金
などから選ぶことができる。In the present invention, the solid inorganic substance to be retained in the intracellular spaces of the unvalved lignocellulosic material may be any solid inorganic substance that can be introduced and deposited inside the unvalved lignocellulosic material, and the type thereof is particularly limited. There are no limitations. Such solid inorganic substances can be selected from various substantially water-insoluble metal salts, complex salts, oxides, simple metals, alloys, and the like.
これらの無機物質の中でも、本発明方法に特に好適なも
のは、実質的に水不溶性であって、室温で固体の状態に
あるものである。このような無機物質としては、炭酸カ
ルシウム、水酸化アルミニウム、ゼオライト、リン酸バ
リウム、リン酸水素バリウム、などの水不溶性、又は難
溶性無機塩類や、ケイ酸ナトリウム水溶液から変成沈澱
したシリカゲルなどのような無機酸化物類がある。Among these inorganic substances, those particularly suitable for the method of the present invention are those which are substantially water-insoluble and in a solid state at room temperature. Examples of such inorganic substances include water-insoluble or sparingly soluble inorganic salts such as calcium carbonate, aluminum hydroxide, zeolite, barium phosphate, barium hydrogen phosphate, and silica gel that is denatured and precipitated from an aqueous sodium silicate solution. There are some inorganic oxides.
これらの無機物質を、未パルプ化リグノセルロース材料
の細胞内腔に沈着担持させる方法には、特に制限はない
が、本発明の方法に好適な方法としては、以下のような
方法がある。Although there are no particular limitations on the method for depositing and supporting these inorganic substances in the intracellular spaces of unpulped lignocellulose materials, the following methods are suitable for the method of the present invention.
（１）無機物質の微粒子を、水性スラリーとし、これを
未パルプ化リグノセルロース材料の細胞内空隙中に導入
沈着させる方法。(1) A method in which fine particles of an inorganic substance are made into an aqueous slurry, and this is introduced and deposited into the intracellular spaces of an unpulped lignocellulose material.
この場合、無機物質微粒子の大きさは０．１ミクロン、
もしくはそれ以下であることが望ましい。In this case, the size of the inorganic substance fine particles is 0.1 micron,
Or less is desirable.
この方法によれば、各種の酸化物、例えば上記シリカゲ
ルの他に二酸化チタンなどのような各種固体状酸化物を
未バルブ化リグノセルロース材料内部に導することが可
能である。According to this method, it is possible to introduce various oxides, for example, various solid oxides such as titanium dioxide in addition to the above-mentioned silica gel, into the interior of the unvalved lignocellulose material.
（２〉接触反応により、実質的に水に不溶性の無機化合
物を形成する２種以上の水溶性無機化合物の各水溶液を
、順次未バルブ化リグノセルロース材料の内部に導入し
、細胞内空隙中において、これらを反応させ、実質的に
水に不溶性の無機物質を沈澱、沈着させる方法。(2> Through contact reaction, each aqueous solution of two or more water-soluble inorganic compounds that form a substantially water-insoluble inorganic compound is sequentially introduced into the interior of the unvalved lignocellulose material, and , a method of reacting these to precipitate and deposit an inorganic substance that is substantially insoluble in water.
この方法により未バルブ化リグノセルロース材料内部に
沈着させるのに好適な物質としては、炭酸カルシウムの
様な水不溶性カルシウム塩、炭酸マグネシウムの様な水
不溶性マグネシウム塩、水酸化アルミニウムのような水
不溶性アルミニウム塩、およびリン酸バリウムのような
水不溶性バリウム塩などがある。Substances suitable for depositing within the unvalved lignocellulosic material by this method include water-insoluble calcium salts such as calcium carbonate, water-insoluble magnesium salts such as magnesium carbonate, and water-insoluble aluminum salts such as aluminum hydroxide. salts, and water-insoluble barium salts such as barium phosphate.
（３）水溶性カルシウム塩類などのような水溶性物質と
二酸化炭素との反応を利用して、実質的に水に不溶性の
固体無機化合物を沈着させる方法。(3) A method of depositing a substantially water-insoluble solid inorganic compound by utilizing a reaction between a water-soluble substance such as a water-soluble calcium salt and carbon dioxide.
この方法では、水溶性物質を水溶液として、これを未バ
ルブ化リグノセルロース材料内部に導入した後、これを
二酸化炭素と反応させることにより、リグノセルロース
材料内部中に、実質的に水に不溶性の化合物を析出させ
ることができる。或は、未パルプ化リグノセルロース材
料の内部に二酸化炭素を導入しておき、その後に水溶性
化合物の水溶液を導入して、これを二酸化炭素と反応さ
せて、未バルブ化リグノセルロース材料の細胞内空隙中
に水不溶性炭酸塩化合物を沈着させてもよい。In this method, a water-soluble substance is introduced as an aqueous solution into an unvalved lignocellulosic material, and then reacted with carbon dioxide to form a substantially water-insoluble compound inside the lignocellulosic material. can be precipitated. Alternatively, carbon dioxide can be introduced into the interior of the unpulped lignocellulosic material, and then an aqueous solution of a water-soluble compound can be introduced and reacted with the carbon dioxide to release the inside of the cells of the unpulped lignocellulosic material. Water-insoluble carbonate compounds may be deposited into the voids.
〈４〉ケイ酸ナトリウムの水溶液を未バルブ化リグノセ
ルロース材料中に導入しておき、次に、これを酸と接触
させて中和し、それによって、セルロース材料内部にお
いて水に不溶性のゲルを生成する方法。<4> An aqueous solution of sodium silicate is introduced into the unvalved lignocellulosic material, which is then neutralized by contacting with an acid, thereby forming a water-insoluble gel inside the cellulose material. how to.
この反応を利用して、まず、木材中にケイ酸ナトリウム
の水溶液を導入しておき、次にこれを酸溶液中に浸漬す
ることによりリグノセルロース材料の内部に固体ケイ酸
を析出させることが出来る。Utilizing this reaction, solid silicic acid can be precipitated inside the lignocellulose material by first introducing an aqueous solution of sodium silicate into the wood and then immersing it in an acid solution. .
（５）金属単体および合金などで比較的低融点の無機物
質、例えばインジウム、又はノ＼ンダなどを溶融させ、
これの液体溶融体をリグノセルロース材料内部に導入し
、これを冷却固化してリグノセルロース内部に沈着させ
ることが出来る。(5) Melting an inorganic substance such as a simple metal or an alloy with a relatively low melting point, such as indium or indium,
The liquid melt can be introduced into the lignocellulosic material, allowed to cool and solidify, and deposited inside the lignocellulose.
上述のような方法により得られ、細胞内空隙中に実質的
に水に不溶性であって固体の無機物質を沈着保持してい
るリグノセルロース材料複合体を、パルプ化する方法と
しては、このような無機物質やリグノセルロース材料を
著しく損傷することがない限り、どのような方法を採用
してもよい。しかし一般には、通常の製紙用バルブの製
造方法が広く適用できる。すなわち、物理的なパルプ化
法として、グラウンドウッド法（ＧＰ）、リファイナー
メカニカル法（ＲＧＰ）、サーモメカニカル法（ＴＭＰ
） 、プレッシャーライズドグラウンドウッド法（ＰＧ
Ｗ） 、ケミメカニカル法、およびケミサーモメカニカ
ル法などを用いることができ、また化学的なバルブ化法
として、サルファイド法（ＳＰ）、クラフト法（ＫＰ）
、およびアルカリ法などを、所望に応じて選択すること
ができる。As a method for pulping a lignocellulosic material composite obtained by the method described above and having a substantially water-insoluble solid inorganic substance deposited and retained in the intracellular spaces, Any method may be used as long as it does not significantly damage the inorganic material or lignocellulosic material. However, in general, ordinary paper manufacturing valve manufacturing methods are widely applicable. In other words, physical pulping methods include groundwood method (GP), refiner mechanical method (RGP), and thermomechanical method (TMP).
), pressure-raised groundwood method (PG
W), a chemical mechanical method, a chemical thermomechanical method, etc. can be used, and as a chemical valving method, a sulfide method (SP), a Kraft method (KP) can be used.
, an alkaline method, etc. can be selected as desired.
また、化学的な方法と物理的な方法とを併用するセミケ
ミカル法などを用いてもよい。また、ノーンナイト法（
爆砕法〉を用いることもできる。これらの各種方法の中
、処理中に、処理液のｐＨが大きく変動する処理法、即
ち化学パルプ化法や、化学処理を伴う機械バルブ化法を
用いる場合は、沈着保持している固体、無機物質を溶解
しないような方法、および処理条件を選ばなければなら
ない。Alternatively, a semi-chemical method using a combination of a chemical method and a physical method may be used. In addition, the non-night method (
It is also possible to use the blasting method. Among these various methods, when using a treatment method in which the pH of the treatment liquid changes significantly during treatment, such as a chemical pulping method or a mechanical valving method accompanied by chemical treatment, the deposited and retained solids and inorganic Methods and processing conditions must be selected that do not dissolve the substance.
本発明方法によって得られた改質バルブは、その細胞内
空隙に、実質的に水不溶性の固体無機物質の微小粒子を
沈着保持しているものであるが、その表面、すなわち、
パルプ化によって形成されたバルブ粒子の表面には、無
機物質の沈着がなく、未改質バルブ粒子の表面と同一の
ものとなっている。The modified valve obtained by the method of the present invention has microparticles of a substantially water-insoluble solid inorganic substance deposited in its intracellular spaces, and its surface, that is,
The surface of the valve particles formed by pulping is free of inorganic substances and is the same as the surface of unmodified valve particles.
このようにしてパルプ化され、固体無機物質を内包して
いるバルブ繊維に対し、製紙工程で通常行なわれる処理
、すなわち、洗浄、スクリーニング、叩解などを施すこ
とが出来る。また、これらのバルブに様々な化学処理を
施すこともできる。The bulb fibers pulped in this way and containing solid inorganic substances can be subjected to treatments normally carried out in the paper manufacturing process, such as washing, screening, and beating. These valves can also be subjected to various chemical treatments.
すなわち、繊維を漂白することや、着色すること、或は
化学修飾を施すことなどが可能である。That is, the fibers can be bleached, colored, or chemically modified.
本発明を、下記の実施例によりさらに説明する。 The invention is further illustrated by the following examples.
実施例１
広葉樹チップ５００ｇを真空容器中で５ｍｍＨｇまで排
気して３０分間そのま５放置した。容器中を排気′状態
に保持したまま炭酸カリウム飽和水溶液３リツトルを容
器中に導入し、チップを浸漬した後、徐々に空気をリー
クさせ、容器内を大気圧に戻した。そしてそのま５、チ
ップ浸漬処理を２時間続けた。その後に、チップを容器
から取り出し、水洗後、これを、塩化カルシウムの飽和
水溶液３リツトル中に浸漬し、１２時間そのまま浸漬放
置し炭酸カルシウムを沈着させた。次にチップを取り出
し、水洗し、乾燥した。乾燥後のチップにおける重量増
加は４５％であった。このチップをステンレス製耐圧容
器に移し、活性アルカリ２０％（酸化ナトリウム換算）
、硫化度２５％（酸化ナトリウム換算〉、液比５． Ｏ
Ｉｌ ／ｋｇ、最高温度１７０℃、最高温度到達時間９
０分、最高温度保持時間９０分の条件下でチップを蒸解
した。蒸解を終了して得られたバルブを離解器で離解し
、その後洗浄した。洗浄されたバルブを、酸素／苛性ソ
ーダ法、次亜塩素酸ソーダ法、過酸化水素法により順次
漂白した。得られた漂白バルブは、灰分３２％、ハンタ
ー白色度７８、光散乱係数４５０ ｃｄ／ ｇを有する
ものであった。Example 1 500 g of hardwood chips were evacuated to 5 mmHg in a vacuum container and left there for 30 minutes. Three liters of a saturated potassium carbonate aqueous solution was introduced into the container while the container was kept in an evacuated state, and after the chips were immersed, air was gradually leaked and the inside of the container was returned to atmospheric pressure. Then, the chip immersion treatment was continued for 2 hours. Thereafter, the chip was taken out from the container, washed with water, and then immersed in 3 liters of a saturated aqueous solution of calcium chloride and left immersed for 12 hours to deposit calcium carbonate. The chips were then taken out, washed with water, and dried. The weight gain in the chips after drying was 45%. Transfer this chip to a stainless steel pressure container and use 20% active alkali (converted to sodium oxide).
, sulfidity 25% (sodium oxide equivalent), liquid ratio 5.O
Il/kg, maximum temperature 170℃, time to reach maximum temperature 9
The chips were cooked under conditions of 0 minutes and a maximum temperature holding time of 90 minutes. The bulbs obtained after completion of the cooking were disintegrated in a disintegrator, and then washed. The cleaned bulbs were sequentially bleached by an oxygen/caustic soda method, a sodium hypochlorite method, and a hydrogen peroxide method. The resulting bleached bulb had an ash content of 32%, a Hunter whiteness of 78, and a light scattering coefficient of 450 cd/g.
実施例２
針葉樹チップ５００ｇを、真空容器中で５ｍｍＨｇまで
排気し、この状態に３０分間そのまま放置した。Example 2 500 g of softwood chips were evacuated to 5 mmHg in a vacuum container and left in this state for 30 minutes.
排気状態のまま、容器中に塩化カルシウム飽和水溶液３
リツトルを導入し、チップを浸漬させた後、空気を徐々
に容器中にリークさせ大気中に戻した。Calcium chloride saturated aqueous solution 3 is placed in the container while the air is being evacuated.
After the bottle was introduced and the chips were immersed, air was gradually leaked into the container and returned to the atmosphere.
この状態のままチップ浸漬をそのままの２時間継続した
。次にこの容器内溶液中に二酸化炭素を１２時間吹き込
んで炭酸カルシウムをチップ内部に沈着させた。次にチ
ップを容器から取り出し、水洗乾燥した。チップの重量
増加率は７０％であった。Chip immersion was continued in this state for 2 hours. Next, carbon dioxide was blown into the solution in this container for 12 hours to deposit calcium carbonate inside the chip. Next, the chips were taken out of the container, washed with water and dried. The weight increase rate of the chip was 70%.
このチップを水道水中に２４時間浸漬したのち、実験用
高濃度リファイナー（１２インチ径ディスク装備）を用
いて、リファイニングした。リファイニング処理を三回
繰り返えして施した。リファイナーのディスク間隔は、
第一回目の処理では０．５ｍｍとし、第二回目の処理で
は０．３ ｕとし、第三回目の処理では０．１ ｍｍと
した。リファイニングを終了した後、得られたバルブか
らスリットスクリーンを用いて、結束繊維等を取り除い
た。このようにして得られたバルブは、通常の機械バル
ブと同等の強度を示し、これに填料を添加しなくても、
高い不透明度を有する紙を製造することができた。The chips were immersed in tap water for 24 hours and then refined using an experimental high concentration refiner (equipped with a 12-inch diameter disk). The refining treatment was repeated three times. The refiner disc spacing is
The first treatment was 0.5 mm, the second treatment was 0.3 u, and the third treatment was 0.1 mm. After finishing the refining, bound fibers and the like were removed from the obtained bulb using a slit screen. The valves obtained in this way exhibit the same strength as ordinary mechanical valves, and even without the addition of fillers.
It was possible to produce paper with high opacity.
実施例３
針葉樹チップ５００ｇを、市販１号ケイ酸ナトリウム５
００ｇを水２．５リットルに溶解した水溶液に２４時間
浸漬した。その後にチップを取り出して水洗し、これを
ＩＮ塩酸３リットルに１２時間浸漬してシリカゲルを沈
着させた。その後、チップを取り出して水洗・乾燥した
。チップの重量増加率は３５％であった。このチップを
実施例２と同じ操作によって機械パルプ化した。このよ
うにして得られたバルブは、通常の機械バルブと同等の
強度を示した。また、このバルブからそれに填料を添加
することなしでも、高い不透明度を示す紙を製造するこ
とが出来た。Example 3 500 g of softwood chips were mixed with commercially available No. 1 sodium silicate 5
00g was dissolved in 2.5 liters of water for 24 hours. Thereafter, the chip was taken out, washed with water, and immersed in 3 liters of IN hydrochloric acid for 12 hours to deposit silica gel. Thereafter, the chips were taken out, washed with water, and dried. The weight increase rate of the chip was 35%. This chip was mechanically pulped by the same operation as in Example 2. The valve thus obtained exhibited strength equivalent to that of a normal mechanical valve. It was also possible to produce a paper with high opacity from this valve without adding any filler to it.
本発明方法によって、内部に固体無機物質を沈着保持し
、しかし、未改質バルブ粒子と同様の表面を有している
改質バルブの製造が可能となった。The method of the invention has made it possible to produce modified bulbs that retain solid inorganic substances deposited therein, but have a surface similar to that of unmodified bulb particles.
このような改質バルブは、不透明性が高く、高い不透明
を要求される製紙原料、成形材料および機能性材料など
として有用なものである。Such a modification valve has high opacity and is useful as a papermaking raw material, a molding material, a functional material, etc., which require high opacity.
Claims (1)
、実質的に水に不溶性の少なくとも１種の固体無機物質
を沈着保持させ、その後、この固体無機物質含有リグノ
セルロース材料にパルプ化操作を施すことを特徴とする
改質パルプの製造方法。 ２、前記実質的に水不溶性の無機物質を沈着保持させる
ために、前記未パルプ化リグノセルロース材料の細胞内
空隙中に、少なくとも１種の水溶性物質の水溶液、また
は気体状物質を含浸保持させ、次に、この水溶性物質ま
たは気体状物質を、前記未パルプ化リグノセルロース材
料の内部において、実質的に水に不溶性の固体無機物質
に変化させる、請求項１記載の方法。[Scope of Claims] 1. At least one solid inorganic substance substantially insoluble in water is deposited and retained in the intracellular spaces of an unpulped lignocellulosic material, and then the solid inorganic substance-containing lignocellulosic material is A method for producing modified pulp, characterized by subjecting the material to a pulping operation. 2. In order to deposit and retain the substantially water-insoluble inorganic substance, an aqueous solution of at least one water-soluble substance or a gaseous substance is impregnated and retained in the intracellular pores of the unpulped lignocellulose material. 2. The method of claim 1, wherein the water-soluble or gaseous material is then converted into a solid inorganic material that is substantially insoluble in water within the unpulped lignocellulosic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22460489A JPH0390689A (en) | 1989-09-01 | 1989-09-01 | Production of modified pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22460489A JPH0390689A (en) | 1989-09-01 | 1989-09-01 | Production of modified pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0390689A true JPH0390689A (en) | 1991-04-16 |
Family
ID=16816331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22460489A Pending JPH0390689A (en) | 1989-09-01 | 1989-09-01 | Production of modified pulp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0390689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423987A (en) * | 1992-04-14 | 1995-06-13 | Fujiwara; Michihiro | Scum removal apparatus |
-
1989
- 1989-09-01 JP JP22460489A patent/JPH0390689A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5423987A (en) * | 1992-04-14 | 1995-06-13 | Fujiwara; Michihiro | Scum removal apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1226705A (en) | Chemithermomechanical pulping process employing separate alkali and sulfite treatments | |
| RU2309212C2 (en) | Bleached mechanical pulp and method for producing the same | |
| JP5862345B2 (en) | Method for producing fine fibrous cellulose | |
| SE538752C2 (en) | Process for the production of a treated pulp, treated pulp, and textile fibres produced from the treated pulp | |
| JPH05503966A (en) | CTMP process | |
| SE525872C2 (en) | Method of producing mechanical pulp with reduced energy consumption | |
| SE541626C2 (en) | Cellulose containing hybrid aerogels and hybrid xerogels, and process for their production | |
| US4211605A (en) | High yield chemimechanical pulping processes | |
| JP2588495B2 (en) | Method for producing high yield and high bleaching pulp for papermaking | |
| JPH0390689A (en) | Production of modified pulp | |
| US5338402A (en) | Process for preparing a bleached chemithermomechanical pulp | |
| US3284283A (en) | Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride | |
| US6752904B2 (en) | Process for removal of lignin from lignocellulosic material | |
| US3981765A (en) | Treatment of wood chips with an alkali metal borohydride solution followed by mechanical defibration | |
| Akgül et al. | Effect of xylanase pretreatment on the kraft pulping of poplar | |
| US5433825A (en) | Method for pulping wood chips separate alkali and peroxymonosulfate treatments | |
| US3663358A (en) | A METHOD FOR INCREASING BISULFITE PULP YIELD COMPRISING TREATING LIGNOCELLULOSIC MATERIAL WITH CYANIDE IONS AT A pH OF 7{14 12 PRIOR TO DIGESTION | |
| AU778689B2 (en) | Pulping process | |
| US3650887A (en) | Wood pulp bleaching process utilizing peroxide-silicate bleaching solution | |
| SU1490198A1 (en) | Method of producing pulp for chemical processing | |
| Hutterer et al. | Xylan localization on pulp and viscose fiber surfaces | |
| JPS60104591A (en) | Treatment of wood and wood pulp and obtained wood pulp | |
| JP4275936B2 (en) | Method for producing mechanical pulp | |
| JPH11217783A (en) | Production of pulp having low resin content | |
| JPH02118191A (en) | Production of mechanical pulp for papermaking and production of paper |