Pulping of Mitsumata by using Twin Screw Extruder
نویسندگان
چکیده
he bast fiber of Mitsumata (Edgeworthia papyrifera Sieb. et Zucc.) has traditionally been used as a raw material paper. belongs to Thymelaeaceae family, and the paper made from its bark is known have hue egg yolk color unique texture. pulp for making manufactured follows. branches are steamed barks taken off, which epidermis cuticle removed. Then, residual white cooked with an aqueous alkaline solution in digester. Compared chemical composition wood, contains more amount pectin less lignin. So, pulping primarily aims remove that works binder among cells, can be removed by under heated.In this research, we twin screw extruder produce bark. Twin consists two co-rotating screws cylinder barrel, it widely manufacturing industry processing such shearing, kneading, heating mixing. The impregnated sodium hydroxide before defiberizing extruder. process continuous time short compared normal cooking process.The effect temperature addition rate on was investigated. We found fibers could defiberized at lower than process.Handsheets were produced extruder, their optical physical properties studied. ISO brightness handsheet high process. yield also higher side reaction considered suppressed during extrusion because low time.
منابع مشابه
Aqueous extraction of residual oil from sunflower press cake using a twin-screw extruder: Feasibility study
The objective of this study was to evaluate the feasibility of an aqueous process to extract the residual oil from sunflower press cakes using a co-rotating twin-screw extruder. Two different configurations were tested: the expression fromwhole seeds followed by the aqueous extraction, in two successive apparatus or in the same one. For the aqueous extraction stage, the oil yield depended on th...
متن کاملWet granulation in a twin-screw extruder: implications of screw design.
Wet granulation in twin-screw extrusion machinery is an attractive technology for the continuous processing of pharmaceuticals. The performance of this machinery is integrally tied to its screw design yet little fundamental knowledge exists in this emerging field for granulation to intelligently create, troubleshoot, and scale-up such processes. This study endeavored to systematically examine t...
متن کاملPreparation of solid dispersion for ethenzamide-carbopol and theophylline-carbopol systems using a twin screw extruder.
In the present study, we prepared solid dispersions of water-insoluble and soluble drugs (ethenzamide (ETZ) and theophylline (THEO)) by the twin screw extruder method, which made it possible to control both kneading and heating at the same time under the fusion point of each drug, using three types of the controlled-release high-molecular-weight substance Carbopol (CAR) as the carrier. The soli...
متن کاملDesign of Synthetic Optimizing Neuro Fuzzy Temperature Controller for Twin Screw Profile Plastic Extruder Using Labview
Problem statement: The temperature control in plastic extrusion machine is an important factor to produce high quality plastic products. The first order temperature control system in plastic extrusion comprises of coupling effects, long delay time and large time constants. Controlling temperature is very difficult as the process is multistage process and the system coupled with each other. In o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japan Tappi Journal
سال: 2023
ISSN: ['0022-815X', '1881-1000']
DOI: https://doi.org/10.2524/jtappij.77.267