1. Principle It removes handwriting by absorbing graphite. This kind of eraser can not only erase handwriting (in fact, it can accurately remove handwriting), it can also be used to highlight important parts or make the work more detailed. However, it is not good at removing large areas of handwriting, and it will stain or…
1. There are two types of workbooks on paper: ordinary type and eye protection type; 2. There are four types of homework books: Chinese grid books, mathematics grid books, English four-line grid books, and art blank books; 3. There are four types of binding: paperback, threaded, loose-leaf, and purse; 4. There are two books that…
International standard format includes folio, 16 karats, 32 karats, 64 karats. The workbook is generally 16 karat, that is, A4 (16k) 297mm×210mm. There are also A5 (32k) 210mm × 148mm, A6 (64k) 144mm × 105mm, A2 (2k) 420mm × 594mm, etc.
Gel pen is a novel-writing tool that is currently popular in the world. It has a comfortable writing feel and low ink viscosity. 1. The gel pen originated in Japan. The end lithium ester is used to seal the organic material of the neutral ink in the ink tube. The excellent lithium ester enables the…
In fact, the difference between the needle type refill and the bullet type is the thickness of the refill. Because the bullet type is self-contained, it can be used with very thick refills. The thickest can be above 1.2. This is neutral. The pen is very thick. Most of what we need in our daily…
Divided into dipping fountain pens, tap fountain pens, and ink sac fountain pens. A fountain pen is a pen-type writing tool that mainly uses metal as the body of the pen. It is filled with ink (mostly black or blue) through a hollow pen tube, and through the action of gravity and capillary, and then…
1. Pen writing is easy to control and can beautify the font. Compared with ballpoint pens and water pens, pen writing is more solid and not flashy. This is related to the contact surface between the pen tip and the paper. The contact between the pen and the paper belongs to sliding friction, which is…
1. Pen tip The nib of a fountain pen can be said to be the most critical part of a fountain pen. There are various variations from thin to thick. Generally, the most common pen nib sizes are “B (Broad thick), M (Medium medium thick), FM (Fine- Medium fine), F (Fine fine), and EF (Extra-Fine…
Liquid glue raw materials can also be called mold silicone rubber, Pad printing silicone, prototype silicone and so on. The raw materials of liquid glue are used as follows: Mainly used in toys, craft gifts, products with fine patterns, overmolds, infusion mold products, POLI crafts, resin crafts, lighting, candles and other crafts complex molds and…
Solid glue is a solid glue made with animal glue, animal glue anticoagulant, fatty acid salt, solvent, and preservative as main raw materials. It can be used to paste various papers in the environment of -20°C to 40°C. The adhesive performance of the solid glue prepared after adding the synergist is obviously improved. The colored…
