scholarly journals Investigation of the possibility of obtaining powdered cellulose using a non-knife method of grinding fibrous semi-finished products

2021 ◽  
Vol 2094 (4) ◽  
pp. 042069
Author(s):  
E V Kaplyov ◽  
L V Yurtaeva ◽  
R A Marchenko ◽  
D Yu Vasilyeva ◽  
D Yu Alashkevich
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Degree Of Polymerization ◽  
Pulp And Paper ◽  
Morphological Properties ◽  
Promising Direction ◽  
Powdered Cellulose ◽  
The World ◽  
Barrier Type

Abstract The pulp and paper industry occupies one of the leading places among various sectors of the national economy in terms of versatility and prevalence throughout the world, as well as the need for its products for the economy of any country. In addition, with the advent of printing systems that operate at an increasingly faster speed and perform complex tasks, the requirements for the properties and quality of paper have increased. At present, powdered cellulose is a promising direction in the development of the pulp and paper industry. The article discusses the possibility of obtaining powdered cellulose with preliminary grinding on a knifeless grinding plant of the “jet-barrier” type. The morphological properties of the fiber and the degree of polymerization of powdered cellulose are given depending on the degree of grinding.

Reuse of Sludge from Pulp and Paper Industry Pilot and Full Scale Applications

1993 ◽  
Vol 28 (2) ◽  
pp. 17-26 ◽  
Author(s):  
V. Eroǧlu ◽  
A. M. Saatçi
Keyword(s):  
Economic Analysis ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Full Scale ◽  
Primary Sludge ◽  
Recent Advances ◽  
Made In

Recent advances made in the reuse of pulp and paper industry sludges in hardboard production are explained. Data obtained from pilot and full-scale plants using primary sludge of a pulp and paper industry as an additive in the production of hardboard is presented. An economic analysis of the reuse of pulp and paper primary sludge in hardboard manufacturing is given. The quality of the hardboard produced is tested and compared with the qualities of the hardboard produced by the same plant before the addition of primary sludge. The hardboard with primary sludge additive has been used in Turkey for about a year in the manufacturing of office and home furniture. The results are very satisfactory when the primary sludge is used at 1/4 ratio.

The World Eucapulp Industry and its Impact on the Northern U.S. Pulp and Paper Industry

1990 ◽  
Vol 7 (4) ◽  
pp. 158-163
Author(s):  
Jeffrey C. Stier
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
World Market ◽  
Pulp And Paper ◽  
Annual Rate ◽  
Structural Shift ◽  
The North ◽  
The World ◽  
Evolutionary Pace ◽  
The U.S

Abstract Eucalyptus woodpulp (eucapulp) emerged as a significant force in the world market for paper grade pulp approximately a decade ago, and since 1976, production has increased at a compound annual rate of growth exceeding 20%. Recently, the closure of a Wisconsin pulpmill was associated with imports of eucapulp, and fears that a rapid influx of eucapulp would destroy local pulpwood markets spread throughout the northern U.S. forestry community. Eucapulp is an ideal fiber furnish for production of tissue and printing and writing papers, both of which are mainstays of the pulp and paper industry in the North. Eucapulp represents a major structural shift in the world pulp and paper sector, and it is likely to have a continuing impact on the U.S. industry, especially in the North. However, imports of eucapulp and of papers made from eucapulp are expected to increase in the future at an evolutionary pace and not to pose an immediate threat to the regional industry. North. J. Appl. For. 7:158-163, December 1990.

scholarly journals EFFECT OF USING WHEY POWDER ON THE PROPERTIES OF PULP AND PAPER OBTAINED FROM STORED BAGASSE

2021 ◽  
Vol 55 (7-8) ◽  
pp. 799-807
Author(s):  
PEJMAN REZAYATI-CHARANI ◽  
AHMAD AZIZI MOSSELLO ◽  
MOHAMMAD BERVAIE
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
Qualitative Properties ◽  
Paper Properties ◽  
Whey Powder ◽  
Soda Pulp

The aim of this study was to investigate the effect of using whey powder (different concentrations and treatment repetitions) as a probiotic agent on the quantitative and qualitative properties of stored bagasse intended for use in the pulp and paper industry. For this purpose, whey powder was added in three concentrations and the treatment was applied once or twice. After that, soda pulp was prepared under conventional conditions. Then, handsheets (80 g/m2) were made and tested in terms of paper properties, and the results were compared. The findings revealed that increasing the concentration of whey powder and the number of treatments significantly improved the pulp and paper characteristics, thus, using the treatment with 2% whey powder twice and 0.4% whey powder once led to the best results for bagasse protection in terms of quality of the raw material, pulp and handsheets.

scholarly journals GENERIC SKILLS DETERMINING QUALITY OF HUMAN RESOURCES – LESSONS FROM MANAGERS

2019 ◽  
Vol 2 (1) ◽  
pp. 58-64
Author(s):  
Piotr Rogala
Keyword(s):  
Human Resources ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Verbal Communication ◽  
Pulp And Paper ◽  
Key Factors ◽  
Generic Skills ◽  
Top Managers ◽  
Global Skills

Human resources are recognized as one of the key factors of success. The generic skills significantly determine the quality of those resources. The paper aims at identifying a set of generic skills which are the most expected by managers. The discussion is based on the results of a survey which was carried out among the representatives of the pulp and paper industry. The responses came from 34 managers (including 17 top managers) from 17 different countries. The 10 most significant (most wanted by the managers) generic skills were identified as: (1) teamwork, (2) flexibility, (3) initiative, (4) leadership, (5) drive, (6) analyzing and investigating, (7) global skills, (8) planning and organizing, (9) verbal communication and (10) computer skills.

scholarly journals Oxidative stress proteins as an indicator of a low quality of eucalyptus clones for the pulp and paper industry

2012 ◽  
Vol 11 (4) ◽  
pp. 3798-3813 ◽  
Author(s):  
D.S. Britto ◽  
C.P. Pirovani ◽  
E.R. Gonzalez ◽  
J.F. Silva ◽  
A.S. Gesteira ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Stress Proteins ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper

‘The World Has Changed’: Discursive Struggles over an Industrial Shutdown in the Media, a Case from the Finnish Pulp and Paper Industry

2009 ◽  
Vol 13 (3) ◽  
pp. 289-304 ◽  
Author(s):  
Pasi Ahonen
Keyword(s):  
Critical Analysis ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Corporate Restructuring ◽  
Media Discourse ◽  
Specific Context ◽  
Historical Process ◽  
The World ◽  
The Media

This paper is a critical analysis of media discourse on a corporate restructuring case in the pulp and paper industry in Finland. The analysis indicates that discursive struggles over the legitimacy of corporate restructuring initiatives, especially industrial shutdowns, are highly contextual processes, deeply embedded in the socio-historical specificities of the locations where they occur. Legitimation of the various restructuring measures is a political and a fundamentally historical process. It is argued that analyses of legitimation strategies need to deploy a processual, historical approach to be able to effectively engage with the practice of legitimation. The importance of, and the differences in, nationalist discourses in securing or challenging the legitimacy for drastic restructuring measures is analysed in the specific context of Finland.

scholarly journals High yield CTMP fibres as a possibility of the more efficient yield of wood raw material

2004 ◽  
Vol 58 (5) ◽  
pp. 217-220
Author(s):  
Bojana Klasnja ◽  
Spiro Kopitovic ◽  
Stanislav Herak
Keyword(s):  
Adverse Effect ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Raw Material ◽  
High Yield ◽  
Limiting Factor ◽  
Chemical Pulp ◽  
Sulphate Pulp

The evident shortage of wood as a raw material has become a limiting factor in the pulp and paper industry which is the greatest consumer of wood in Europe. The situation in our country is similar. During the few past years, the production of poplar and willow pulpwood was 220.000 m3 per year, which is insufficient for the planned increase in the production of sulphate pulp (175.000 tons till 2005). This paper deals with the aspects of the more efficient yield of raw material, based on the significantly higher yield of CTMP fibres, as well as with the significance of the lower adverse effect on the environment. It also analyses the conditions of production and the quality of the obtained fibres, as a possible substitute for chemical pulp and secondary fibres in papers of different quality. The main reasons for the production and use of CTMP fibres in our country are reported.

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