Composite material for stylus tip, tip and preparation method

Abstract

The invention discloses a composite material for a pen tip of a touch pen, a pen tip and a preparation method which can improve the tactile sensation of a touch pen, help to protect the screen, and improve the accuracy of writing input. The raw materials of the composite material include 20-80 parts of high-density polyethylene, 20-80 parts of low-density polyethylene, 5-25 parts of filler, 0.5-5 parts of silicone powder, and 0.5-3 parts of lubricant And 0.5-1.5 parts of dispersant. The composite material for the pen tip of the stylus is uniformly blended with high-density polyethylene and low-density polyethylene in a certain proportion, and the hardness of the finished product is reasonably adjusted, so that it can guarantee a certain strength when used as a pen tip, but not too hard And cause a larger impact sound, which is beneficial to protect the screen and improve the tactile feeling when writing and inputting.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a composite material for a pen tip of a stylus pen, a pen tip and a preparation method. Background technique [0002] With the popularization of smart touch terminals in people's life and work, touch screens have gradually developed into a complete human-machine interface interaction platform, and people can directly write and input on the screen. Among them, infrared touch technology is the choice of the mainstream market. The advantage of an infrared touch screen is that it can be touched by a finger, a pen, or any object that can block the light to achieve touch operation. From the perspective of touch experience, the stylus has higher precision, richer expansion functions, and is more in line with the user's usage habits, so it has received widespread attention. However, when writing on the screen with infrared stylus tips of different materials and structures, there will be...

AI Technical Summary

Problems solved by technology

Most of the traditional infrared stylus pens have poor touch when writing, and the friction between them and the screen is small and easy to slide, which is not conducive to the improvement of writing input accuracy.

For example, the nibs of high-precision infrared stylus currently on the market are mostly made of POM, silica gel, rubber, fiber and other materials. The nib materials with higher hardness (such as POM) are smooth enough to write and have high mechanical strength, but they are often accompanied by larger screens. Impact sound, long-term use may even cause damage to the screen; although the soft pen tip (such as rubber) has a small impact sound on the screen, it usually has a large damping, and the writing is not smooth enough, which increases the fatigue of the user, and it is difficult to pass the pen tip. Abrasion resistance and drop test; fiber pen tip (such as felt) can balance the impact sound and smoothness of the screen to a certain extent, but there is a certain probability of sharp abnormal noise, and the writing physical examination is poor

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