Volume 14, Number 1 (1968)

Original Articles

Syoji SUDO
Variation in Tracheid Length in AKAMATSU (Pinus densiflora SIEB. et ZUCC.). I. Variation in Tracheid Length within a Young Tree Stem     1

Syoji SUDO
Variation in Tracheid Length in AKAMATSU (Pinus densiflora SIEB. et ZUCC.). II. Variation in Tracheid Length in One-Year-Old Branches of a Tree     6

Masami FUSHITANI
Effect of Delignifying Treatment on Static Viscoelasticity of Wood. I. Stress Relaxation     11

Masami FUSHITANI
Effect of Delignifying Treatment on Static Viscoelasticity of Wood. II. Temperature Dependence of Stress Relaxation in the Water-Saturated Condition     18

Yasuo OHSAKO, Akira TAKAHASHI, Tadashi YAMADA
Studies on the Drying Set of Wood. II. The Effects of Tensile Stresses on Shrinkage of Wood during Drying     24

Koichi OGlYAMA, Tamio KONDO
On the Pinoresinol Type of Structural Units in Lignin Molecule. III. Caracterization of Diactone and Determination of the Structural Unit.     31

Yoshiyuki HIROSE, Takuma YANAGAWA, Yoshikatsu SUYAMA, Tomoko IGARASHI, Tomoichiro NAKATSUKA
Terpenoids. XV. On the Triterpenes in the Wood of Kapur (Dryobalanops sp.)     36

Seika TAI, Junzo NAKANO, Nobuhiko MIGITA
Studies on Utilization of Lignin. VI. Activation of Thiolignin with Phenol     40

Seika TAI, Takeo SAWANOBORI, Junzo NAKANO, Nobuhiko MIGITA
Studies on Utilization of Lignin. VII. Reaction of Thiolignin with Tolylenediisocyanate and Adhesion of Resulting Product     46

Tetsuo KOSHIJIMA, Einosuke MURAKI, Kazuo NAITO, Kimihiro ADACHI
Radical Grafting on Lignin. IV. Semi-Conductive Properties of Lignin-Styrene Graftpolymer     52

Note

Kadzunori TATSUYAMA , Takayuki HINO, Shigeyasu AKAI, Masaki YAMAMOTO
Antifungal Effect of Sea Water on the Growth of Certain Wood-Destroying and Wood-Staining Fungi     56

Short Communications

Yoshiyuki HIROSE, Takuma YANAGAWA, Tomoichiro NAKATSUKA
Terpenoids. XVII. The structure of New Triterpenes from the Wood of Kapur (Dryoblanops sp.)     59

Abstracts

Proceedings of the Society     60


Volume 14, Number 2 (1968)

Original Articles

Tsutomu MATSUMOTO, Juichi TSUTSUMI
Elastic Properties of Plywood in Dynamic Test. I. Relation Between Static Young’s Modulus and Dynamic Young’s Modulus     65

Soyji SUDO
Variation in Tracheicl Length in AKAMATSU (Pinus densiflora SIEB. et ZUCC). III. Variation in Tracheid Length of One-Year-Old Branches Taken From Ten Trees from a Fifty-Years-Old Stand     70

Norio TAKAMURA
Studies on Hot Pressing and Drying Process in the Production of Fibreboard. III. Softening of Fibre Components in Hot Pressing of Fibre Mat     75

Yoshihiro MATAKI, Motoi OTA
Studies on the Mechanism of Thermal Conversion in the Pulp Sheet during Hot Pressing of Fiberboard. VII. Effects of Some Variables on the Board Formation Mechanism Analyzed by the Relationship between Heat-Mass Transfer and Relaxation of Specific Pressure     80

Yoshihiro MATAKI
Studies on the Mechanism of Thermal Conversion in the Pulp Sheet during Hot Pressing of Fiberboard. VIII. Effects of the Rate of Applying Specific Pressure on the Behaviour of Pulp Sheet during Hot Pressing     86

Fumiyuki TERATANI, Kango MIYAZAKI
Effect of the Thermal Treatment on Wood Hemicelluloses. I. The Change of Arabinogalactan by Heating     91

Fusako ABE
Studies on the Thermal Properties of Wood and Woody Materials. I. The Differential Thermal Analysis of Wood     98

Osamu SAWABE, Takeshi SAWABE, Koichiro KITAO, Akira SATO
Effects of Major Wood Components on the Thermal Decomposition of Wood     104

Isako SAEKI, Masashi SUMIMOTO, Tamio KONDO
On the Antitermitic Substance of Ternstroemia japonica THUNB. III. Biological Tests of the Antitermitic Substance     110

Tsutomu KAYAMA, Hiroshi KUROSU
Studies on the Viscosity of Chlorinatecl Kraft Pulp     115

Kenzo TANEDA, Isamu HASEGAWA
Graft Polymerization onto Woody Substance. I. Graft Polymerization of Styrene onto Wood Fiber with a Few Initiators     121

Note

Akinori UEYAMA
Calorimetric Measurements of Decaying Beech Wood (Fagus crenata BLUME)     127

Research Materials

Abstracts

Proceedings of the Society     131


Volume 14, Number 3 (1968)

Original Articles

Yoshihiro MATAKI
On Structural Behaviour of Steam Treated Wood in Cold or Hot Pressing Perpendicular to Grain     133

Shigeru KITAYAMA, Hikoichi SUGIHARA
On Noise Analysis of Bandsaw Machine     140

Takeshi OKANO
Study on the Orientation of the Crystalline Substances in the Cell Wall of Wood with X-Ray Diffraction     148

Makoto YASHIRO
Studies on Hygroscopicity of Wood. The Effect of Heat-Treatment on Water Vapour Adsorption by Wood     155

Masami FUSHITANI
Effect of Delignifying Treatment on Static Viscoelasticity of Wood. III. Temperature Dependence of Stress Relaxation in the Absolutely Dried Condition     160

Masami FUSHITANI
Effect of Delignifying Treatment on Static Viscoelasticity of Wood. IV. Strain Dependence of Stress Relaxation and Stress Dependence of Creep     166

Note

Shinsuke FUJITA, Akira TAKAHASHI
Tensile Strength and Modulus of Elasticity of Wood Stretched during Drying     172

Short Communication

Takesi SADOH
Plasticization of Wood Using Tetraethylene Pentamine     175

Abstracts

Proceedings of the Society     176


Volume 14, Number 4 (1968)

Original Articles

Masao KAWAGUCHI, Gen-ichi NAKAMURA
Study on the Photo-Electric Analysis of Annual Ring Structure     181

Akira TAKAHASHI
Strain Determination of Wood by Using Photoelastic Coating Technique. IX. Strain Distribution on Wood with a Loose Knot Applied to Compression     191

Tadashi NOBUCHI, Hiroshi HARADA
Electron Microscopy of the Cytological Structure of the Ray Parenchyma Cells Associated with Heartwood Formation of Sugi (Cryptomeria japonica D. DON)     197

Masami FUSHITANI
Effect of Swelling Treatment on Stress Relaxation of Wood     203

Masami FUSHITANI
Effect of Heat-Treatment on Static Viscoelasticity of Wood     208

Takafusa HARAGUCHI
Degradation of Lignin by Wood-Rotting Fungi. II. Effect of Aromatic Acids and Guaiacyl Compounds on the Degradation of Lignin by Pycnoporus coccineus     214

Noritsugu TERASHIMA, Masato TAMAO, Takashi KANDA
Polarography of Lignin. XI. Sulfate Cooking of Model Compounds and Polarographic Properties of the Cooking Products     220

Minoru TANIGUCHI, Kanji NAKATO, Nobuo SHIRAISHI
Dependence of Molecular Weight about Adsorption of Polyvinyl Acetate on Wood Surface     227

Notes

Yukio OKAMOTO, Sohan RI, Junzo NAKANO, Nobuhiko MIGITA
Alkali Lignins from Black Liquors of Vapor Phase and Liquid Phase Alkaline Cookings     233

Abstracts of Discussions at the Symposia in the 18th Conference of Japan Wood Research Society

Research Materials

Abstracts

Book Review

Proceedings of the Society     245


Volume 14, Number 5 (1968)

Original Articles

Nobuyuki HIRAI, Munehiro DATE, Eiichi FUKADA
Studies on Piezoelectric Effect of Wood. I.     247

Nobuyuki HIRAI, Munehiro DATE, Eiichi FUKADA
Studies on Piezoelectric Effect of Wood. II. Modification of Crystal Structure     252

Hiroto IMAMURA, Kanji NAKATO, Takesi SADOH
On the Moisture Permeability of the Polyurethane Resin Paint Film under Elongated State     257

Sadaaki OHTA, Haruto WATANABE, Tsutomu MATSUMOTO, Juichi TSUTSUMI
Studies on Mechanical Properties of Juvenile Wood. II. Variation of Fundamental Structural Factors and Mechanical Properties of HINOKI trees (Chamaecyparis obtusa SIEB. et ZUCC.)     261

Masaharu SUZUKI
Mechanical Deformation of Crystal Lattice of Cellulose in HlNOKI Wood     268

Norio TAKAMURA
Studies on Hot Pressing and Drying Processes in the Production of Fibreboard. IV. Nature of Interfibre Bonding in Board Structure (1)     276

Isao ABE, Minoru KUBOTA, Akio NUNOMURA, Shigeru MORI
Researches in the Lignin-Phenol Resings Using Wood Hydrolysis Lignin with Conc. Sulfulic Acid. II. Degradation of Hydrolysis Lignin in Alkaline Media     283

Seika TAI, Junzo NAKANO, Nobuhiko MIGITA
Studies on Utilization of Lignin. VIII. Activation of Thiolignin with Formaldehyde     289

Notes

Hiroyuki IMAMURA, Yuko TANNO, Toshio TAKAHASHI
Isolation and Identification of Four Isoflavone Derivatives from Eurasian Teak (Pericopsis sp.)     295

Abstracts

Proceedings of the Society     298


Volume 14, Number 6 (1968)

Original Articles

Takanori ARIMA
Studies on Rheological Behavior of Wood Particle Mat. I.     299

Takanori ARIMA
Studies on Rheological Behavior of Wood Particle Mat. II.     304

Norio TAKAMURA
Studies on Hot Pressing and Drying Processes in the Production of Fibreboard. V. Nature of Interfibre Bonding in Board Structure (2)     309

Yoshihiko HIRASHIMA
Study on Bending of Wooden Plates. Rectangular Plate with Two Opposite Edges Simply Supported and the Other Two Free     317

Tomotaka YOSHIMOTO, Kyoji MINAMI
Photodegradation of Wood. VI. Photodegradation of Cellulose in Wood     324

Akira YAMAGUCHI, Tadakazu HIROI, Satoshi TAKAHASHI, Makoto MIYAZAKI
Studies on Lignin. VII. Qualitative Gas Chromatogrophy of Phenylpropane Derivatives     328

Murao SOGO, Katsumi HATA
Chemical Studies on the Bark. XVI. On the Aromatic Nuclei of Undissolvable Bark Lignin     334

Kenzo TANEDA, Isamu HASEGAWA
Demethylation of Lignin in Alkaline Aqueous Solution Containing Sulfur. I. Demethylation Rate     339

Notes

Tsunekiyo TADA, Tomoichiro NAKATSUKA
Wood Extractives of Asunaro     344

Abstracts

Proceedings of the Society     346


Volume 14, Number 7 (1968)

Original Articles

Nobuo SHIRAISHI, Yutaka ISHIMARU, Kanji NAKATO, Tokuo YOKOTA
Preferential Adsorption of Polymer Mixtures on Wood Surface     347

Takesi SADOH
Mechanism of Dimensional Stabilization of Wood by Polyethylene Glycol Treatment     353

Takeshi OKANO
On the Relation between Micell Angle and X-Ray Diffraction Diagrams     358

Norio TAKAMURA
Studies on Hot Pressing and Drying Processes in the Production of Fibreboard. VI. Relating the Modulus of Rupture and Water Absorption to the Specific Gravity of Board     363

Yoshihiro MATAKI
Studies on the Mechanism of Thermal Conversion in the Pulp Sheet during Hot Pressing of Fibreboard. IX. The Elucidation of Board Formation Mechanism on the Basis of Board Properties”     368

Kazumasa SHIMIZU, Fumiyuki TERATANI, Kango MIYAZAKI
Effect of the Thermal Treatment on Wood Hemicelluloses. II. The Change of Xylan by Heating     376

Kenzo TANEDA, Isamu HASEGWA
Demethylation of Lignin in Alkaline Aqueous Solution Containing Sulfur. II. Identification of the Extracts from Reaction Products by Paper Chromatography     382

Akira HAYASHI, Tadayuki UEKITA
Demethylation of Lignin during Pulping I. 1-Cyclopentene Carboxylic Acid from Guaiacol and Lignin (1)     387

Notes

Tohjun TAKASHIMA, Masuto OGUSHI, Yasuhiro KIUCHI, Fusako AKABANE
The Occurrence of Savinin in Heart Wood of Chamaecyparis pisifera ENDL.     391

Abstracts

Proceedings of the Society     393


Volume 14, Number 8 (1968)

Original Articles

Tomio TAKEMURA, Yasushi KANAGAWA, Kanji NAKATO
An application of the Theory of Relaxation during Drying to Wood Plasticization     395

Shoji SUDO
Variation in Tracheid Length in AKAMATSU (Pinus densiflora SIEB. et ZUCC.). IV. Variation in Tracheid Length in AKAMATSU from a Stand in Tohoku District     401

Tomio TAKEMURA
Plastic Properties of Wood in Relation to the Non-Equilibrium States of Moisture Content (re-continued)     406

Kokki SAKAI, Sadakichi KISHIMOTO
Delignification in Peracid Bleaching. II. Functional Group Contents and Molecular Weight     411

Koichi OGIYAMA, Tamio KONDO
On the Pinoresinol Type of Structural Units in Lignin Molecule. IV. The Changes of Dilactone-yield during Enzymatic Dehydrogenation     416

Akira HAYASHI, Yasutoshi KAKIZAWA
Milled Wood Hemicellulose. II.     421

Ynji KAI, Motohiro SHIMIZU
On the Phenolic Constituents from Cryptomeria japonica D. DON. IV. The Structure of Sugiresinol (2)     425

Ynji KAI, Motohiro SHIMIZU
On the Phenolic Constituents from Cryptomeria japonica D. DON. V. The Structure of Hydroxysugiresinol     430

Notes

Susumu MIZUMOTO
On the Relative Durability of some Broad-Leaved Woods to Fungal Attack     434

Short Commumications

Takuma YANAGAWA, Yoshiyuki HlROSE, Tomoichiro NAKATSUKA
Terpenoids. XVIII. The Structures of New Triterpenes from the Wood of Kapur (Dryobalanops sp.)     440

Minoru MASUDA, Hikaru SASAKI, Takamaro MAKU
Computer Analysis of Orthotropic Plates     441

Abstracts

Proceedings of the Society     443