2 results about "Economic shortage" patented technology

The invention discloses a colorful acid and alkali resistant laser printing ink and a preparation method thereof. The printing ink is composed of the following components in parts by weight: 0 to 30 parts of butanone, 10 to 30 parts of isopropanol, 2 to 6 parts of curing agent, 10 to 15 parts of pigment, and 10 to 30 parts of glycidyl ether epoxy resin. The glycidyl ether epoxy resin is adopted to produce the printing ink, aliphatic polyamine is further chosen as the curing agent, the acid and alkali resistant performance of the printing ink is strengthened through optimizing the formula, thus the shortage that the colorful laser printing ink is lost when being mixed with acid and alkali is overcome, moreover, the color of the laser printing product is more abundant, and the patterns are more clear.

The invention discloses a preparation method of a high-yield camellia oleifera shell pulp. The preparation method of the high-yield camellia oleifera shell pulp specifically comprises the steps of mechanical grinding, pre-impregnation, mechanical disc grinding treatment, washing, defibering and screening. The preparation method prepares the high-yield camellia oleifera shell pulp through a chemical and mechanical method; the prepared high-yield camellia oleifera shell pulp has the advantages of being high in yield, good in pulping performance and drainability and the like and can be applied tothe fields of paper-based packaging, molding and decorating materials and the like, thereby to some extent easing the stress brought about by shortage in papermaking fiber resources. Besides, a largenumber of waste camellia oleifera shells are applied to the fields of pulping and papermaking to achieve efficient and high-value application of agricultural waste.