All issues
Volume 33, Issue 3
Displaying 1-8 of 8 articles from this issue
- |<
- <
- 1
- >
- >|
-
Junzo Nakano1979 Volume 33 Issue 3 Pages 180-189
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSDownload PDF (1298K) -
Masaru Katagiri1979 Volume 33 Issue 3 Pages 190-194
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESS -
Senju Mill, Senju Paper Mfg. Co., Ltd.Senju Paper Mfg. Co. Ltd.1979 Volume 33 Issue 3 Pages 195-203_1
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSDownload PDF (1968K) -
Hiroo Tanaka1979 Volume 33 Issue 3 Pages 204-213
Published: March 01, 1979
Released on J-STAGE: January 22, 2010
JOURNAL FREE ACCESSDownload PDF (1634K) -
Subjective Judgements and Clark's Stiffness MeasurementsMasataka Oda, Takashi Kadoya, Makoto Usuda, Minoru Kimura1979 Volume 33 Issue 3 Pages 214-219
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSRecently, subjective or psycho-physical judgement has been recognized to be an important means for evaluating paper sheet. In this study, human judgement on properties such as stiffness or rigidity was examined by bending the pulp sheets which possess various basis weight over a range of 58-86 g/m2. As a result of the tests, it is clear that the difference of stiffness or rigidity between sheets, gap of basis weight of which is about 5 g/m2., can be judged precisely by subjective judgement.
Together with the human judgement of stiffness or rigidity of paper, Clark's stiffness was measured as an objective means to confirm the validity of the equation, s=ET3/12W, where s : Clark's stiffness, E : Young's modulus, T : thickness and W : basis weight. As well-known, the values of E and T depend of the measuring method. When the thickness by means of mercury buoyancy method is adopted asT, and the sonic modulus adopted as E, the above equation is applicable to both, commercial pure paper and handmade sheet.
In addition to these results, there is a good relationship between such a human judgement and Clark's stiffness or rigidity.View full abstractDownload PDF (813K) -
Munetaka Morita, Takeo Nagasawa, Kiyomichi Taoda1979 Volume 33 Issue 3 Pages 220-226
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSThe Smelt Fractionating Process is composed of smelt solution causticizing stage and crystallizing stage of the causticized liquor. We conducted experiments to investigate both the effect of NaCl on causticity and the behavior of components such as NaCl and Na2CO3 in caustized liquor. We then performed a pilot plant test to get engineering data for the Smelt Fractionating Process.
The results of these experiments can be summarized as follows.
1) NaCl does not actully affect causticity in this process.
2) The material balance of this process can be calculated by using a phase diagram and the calculated values agree well with the pilot plant test results.
3) Data for the design and the operatioal conditions of equipment for crystallizing are obtained and it is confirmed that separated NaCl is pure enough for use in the electrolysis necessary to recover chemicals for pulping.View full abstractDownload PDF (972K) -
1979 Volume 33 Issue 3 Pages Preface1
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSDownload PDF (222K) -
1979 Volume 33 Issue 3 Pages Preface2-Preface6
Published: March 01, 1979
Released on J-STAGE: November 10, 2009
JOURNAL FREE ACCESSDownload PDF (656K)
- |<
- <
- 1
- >
- >|