จำนวน Repository ( 3 )

การผลิตกระดาษทำมือจากหญ้าชันกาด
การผลิตกระดาษทำมือจากหญ้าชันกาด

Panicum repens is a species of grass. The paper has been made from non-wood materials for long times. This research was used Panicum repens for made grass pulp as non-wood fiber. The influence of alkaline concentrations on properties of pulp from Panicum repens was investigated under room temperature. Alkaline concentration levels were varied at 0% 5% 10% 15% and 20% respectively. Moreover Paper pulp from Panicum repens was observed by scanning electron microscope (SEM). This research has controlled the length of fiber approximately 0.5- 2.5 cm before soaked with alkaline concentration at 1 hour and soak with water for controlled pH value at 7-8. Paper pulp was formed on a sieve. The result showed that color of paper pulp made from Panicum repens was light brown and green. SEM showed that alkaline concentration affects the physical properties of paper pulp. Moreover true density of paper pulp was also investigated in this research.

2563
การเตรียมกระดาษคราฟท์จากผักตบชวา ใบสับปะรด และกาบกล้วย
การเตรียมกระดาษคราฟท์จากผักตบชวา ใบสับปะรด และกาบกล้วย

This research had a main purpose for studying the utilization of water hyacinth as the key component of paper production mixed with the agricultural waste as pineapple leaves and leaf sheath of banana tree. The paper pulps were prepared from 5 g/l NaOH at 90-95oC for 3 hours then bleaching with 5 g/l Hydrogen peroxide at 90-95oC for 30 minutes. The whole pulps were detached improvement with 5g/l Acramine 3187 before paper establishment production. Finally the strength of obtaining papers was consideration and competition to any craft paper type. As the results the appropriate ratio of paper was 70% water hyacinth (stem) 10% pineapple leaves and 20% leaf sheath of banana tree. It had 31.19 kN/m2 for bursting strength tearing strength as 309.17 mN and 0.49 mm thickness. The basis weight was 183±5 g/m2. The achieved paper was equivalent as KI craft paper. It was presented for packaging boxes and other procedures.

2561
The effects of pulp and fiber crops that affect the printing surface through for packaging
The effects of pulp and fiber crops that affect the printing surface through for packaging

The study researches the effects of pulp and fiber crops that affect the printing surface through For packaging. The purpose of the study of plant fiber pulp.Compare the quality of the pulp fiber of plants that affect the printing surface throughThe data can be used in the design of appropriate packaging. And to compare the effects of the packaging structure of plant fiber pulp. Population and sample used in the study include the printing surface through Pulp and paper plants 5 types of equipment used in fiber research. The pulp and fiber crops. By manufacturers or those with knowledge of print. A uniform test. Clarity and completeness of the printing sector. Spec with a photometer in a satisfactory printing on pulp fibers through the plant by the manufacturers or those with knowledge of print. And the satisfaction of the pulp fiber packaging plant. By manufacturers or those with knowledge of the packaging. The research concluded that. Comparison of pulp fibers from plant samples 40 of them are featured on pulp paper suitable for printing in the most average of 4.6. The analysis compared the print quality of the pulp through a fiber plant. The test is simple and consistent. Clarity and completeness of the printing sector. The colors that appear on printed material including five kinds of color have always been smooth with differences not exceeding 5 shows the results in a value that can be seen as well. Comparison of satisfaction on the pulp paper and printing through the most appropriate. Is satisfactory in most average 4.65. Comparison of satisfaction packaging pulp paper plant fiber 5 and found that the packaging 1 and Type 3 are the scores remained level. The packaging is an average of 4.08 and packaging Type 3 has an average of 4.04. This research concluded that Pulp paper and print quality on the most appropriate.Is satisfactory in most The properties of the pulp. Print quality. As well as satisfaction with the quality printing. While pulp and pineapple pulp the elephant has a surface that is not strong. I withdrew the paper fibers of the time. Should improve the quality of pre-printed paper surface. While pulp and pulp of banana skin healthy grass.

2555