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Yuan L.,Northeast Forestry University | Qian X.-R.,Northeast Forestry University | Guan J.,Voith Paper China Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2013

The specialty paper is being developed quickly as it's a kind of paper based material with many kinds of special functions and higher technical content, it is the high value-add product. In this paper, newly applied manufacture technologies of flame retardant paper, antibacterial paper, release paper, flexible packaging paper, carbonless copy paper and filter paper, as well as the new equipment supplied by the leading paper making equipment suppliers Voith and Metso are introduced.


Zhang M.-Y.,Shaanxi University of Science and Technology | Qi S.-T.,Shaanxi University of Science and Technology | Wang J.,Shaanxi University of Science and Technology | Li W.-F.,Voith Paper China Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2014

The pulp at first stage refining was divided into shives and pulp A with the use of shives screens, the shives were refined to the pulp B with different freeness, then the pulp B was backfilled into pulp A in proportion, the effects of selective refining on the paper properties and energy consumption of refining were analyzed. The results showed that: selective refining could reduce the energy consumption of refining. On basis of the freeness of the resultant pulp was the same as with the self-finished pulp, when the freeness of pulp B reached to 170 mL, the freeness of pulp C is 305 mL, energy consumption of refining decreased by 13.1%, paper bulk and tear index increased by 11.6% and 1.7%, while the tensile strength and internal bonding strength decreased by 10.5% and 16.8%. The selective refining of shives could adjust the paper properties by controlling the shives refining characteristic.


Qu S.-G.,China Haisum Engineering Co. | Yang J.-B.,Voith Paper China Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2014

Based on the design procedure of the latest modern tissue machine white water system the article systematically elaborates the basic procedure and principle of the design of the tissue machine white water system. Furthermore, the key points in the disc filter system design were illustrated in detail, which may provide reference to related designers or process engineers in paper mills.


Wu P.,Shaanxi University of Science and Technology | Zhang M.-Y.,Shaanxi University of Science and Technology | Wang J.,Shaanxi University of Science and Technology | Song S.-X.,Shaanxi University of Science and Technology | And 2 more authors.
Zhongguo Zaozhi Xuebao/Transactions of China Pulp and Paper | Year: 2013

In this paper, the application of pre-flocculate of cationic starch (CS) and novel calcium silicate (FACS) as paper filler was studied. The study compared the influence of different CS adding processes on dynamic retention, drainage performance and paper properties. Experimental results showed that CS was a good chemical to pretreat FACS. Compared with common CS adding process, the furnish containing pre-flocculate of CS and FACS had a better drainability and retention. Strength of the resultant paper was improved obviously in a lower CS dosage, the pre-flocculated FACS was distributed uniformly around the fibers.


Huo J.-L.,Voith Paper China Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2010

Each NCD(non-contact drying) equipment has its own advantages, drying process should follow different applications, it is not easy to have all benefits together. Voith developed this configuration by compact design and precision energy recovery process, and it is helpful to produce a perfect coating layer on the paper, as well as minimize energy consumption.


Fu X.,Voith Paper China Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2010

In order to raise the running efficiency of paper machine, the tail threading system can be improved and optimized. The appropriate optimizing solution will be provided after site investigation. The solution content includes; Tail Waterjet Cutter system, Rope Threading optimization, Vacuum Tail Threading Conveyer system, etc. Thereinto VTT system's main components and function are introduced in detail.

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