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Temperature-controlled erasing device for friction-erase pens

A technology of temperature-controlled switches and sleeves, applied in erasers, office supplies, printing, etc., can solve the problems of paper damage, temperature rise, etc., and achieve the effects of easy use, less heat storage, and convenient use

Inactive Publication Date: 2018-05-04
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the rapid temperature rise can be caused by vigorous and rapid friction, and the rapid and rapid friction will easily cause paper damage

Method used

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  • Temperature-controlled erasing device for friction-erase pens
  • Temperature-controlled erasing device for friction-erase pens
  • Temperature-controlled erasing device for friction-erase pens

Examples

Experimental program
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Embodiment Construction

[0016] As the formulation of heat-sensitive ink changes, its color development and decolorization temperature will also change. The following are the parameters of a heat-sensitive ink found on the Internet: the ink is colored at room temperature, it is heated to 50°C-60°C to lose color, and cooled to minus 5°C-minus 20°C to develop color, and it is reversible. Specifically, the starting decolorization temperature is about 45°C, and the complete decolorization temperature is about 55°C. The starting color temperature is about minus 5°C, and the full color temperature is about minus 20°C. The average fineness of the microcapsules in the ink is 2-3 microns.

[0017] The temperature-controlled erasing device used by the rubbing pen includes a power supply 1 and two switches. The power supply 1 and the two switches are connected in series. For the convenience of distinguishing the two switches, one switch is a temperature control switch, referred to as the temperature control swi...

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PUM

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Abstract

The invention discloses a temperature control erasing device used for a friction easy-to-erase pen, and relates to the field of de-coloration of thermosensitive ink, in particular to erasing of scripts written by the friction easy-to-erase pen for students. Aiming to prevent paper from being broken, according to the technical scheme, the temperature control erasing device for the friction easy-to-erase pen is characterized in that a power supply is in series connection with two switches, namely, a normally-closed temperature control switch and a normally-open power switch in a power-off state at normal times; the temperature control switch consists of a heating resistor disc and a dual-metal sheet; the heating resistor disc generates heat when being electrified; when the dual-metal sheet is up to a designed temperature, a circuit is disconnected; the designed temperature is 55 to 70 DEG C. The temperature control erasing device has the beneficial effects that the surface of the paper does not need to be abraded, so that the paper is protected from being broken; the use of an eraser is reduced, so that social resources are saved; the device can be used separately, can be attached to the friction easy-to-erase pen to use, and can be detached, so that the device is economical and practical; the device is low in cost, is easy to make, and is convenient and easy to use.

Description

technical field [0001] The invention relates to the field of decolorization of heat-sensitive ink, in particular to the aspect of erasing handwriting of rubbing and easy-erasing pens used by students. Background technique [0002] Now the rubbing pen uses heat-sensitive ink, and its writing will disappear when the temperature is relatively high. Elementary school students like to use rubbing pens for writing in order to keep the roll surface or the surface of homework paper clean. When they need to modify, they usually use an eraser to reach a higher temperature through friction to make the handwriting disappear. The problem that exists is: fast friction can cause the temperature to rise quickly, and fast friction can easily cause paper damage. Contents of the invention [0003] In order to avoid damage to the paper, the present invention designs a temperature-controlled erasing device for a friction-erasable pen. [0004] The technical solution adopted by the present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L19/00
CPCB43L19/0043
Inventor 胡再国
Owner SICHUAN UNIV
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