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Carbon and graphite integration pencil lead and preparation method thereof

A technology of pencil lead and carbon ink, which is applied in the direction of pencil lead, household utensils, applications, etc., to achieve the effect of avoiding falling

Inactive Publication Date: 2019-04-16
LONGKOU YIYOU STATIONERY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the prior art, the present invention provides a carbon-ink-in-one pencil lead and a preparation method thereof, which can change the shortcomings of a single graphite lead and charcoal lead, so that neither lead nor lead will appear in the writing or drawing of the lead. The phenomenon of shedding toner ensures the concentration of the color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The main materials and auxiliary materials of this example are prepared according to the following steps to prepare a pencil lead with carbon and ink. In this example, kaolin powder, charcoal powder, graphite, and high-pigment carbon black are selected according to the mass ratio of 1.5:1:2:2:1.

[0026] Step 1. Mix the washed clay powder, kaolin, charcoal powder, graphite, and high-pigment carbon black into a uniform dry powder; in step 1, the clay powder needs to be washed, and the washed clay powder is pressed to control The water content is 50%~55%, then dried and micronized into clay powder of more than 800 meshes, and kneaded with kaolin powder, charcoal powder, graphite, and high-pigment carbon black according to the mass ratio of 1.5:1:2:2:1 Kneading is carried out in the machine, and after kneading for 12 hours, a uniformly mixed dry powder is formed. When adding the main ingredients, charcoal powder, graphite, and high-pigment carbon black are added in sequenc...

Embodiment 2

[0033] In the present embodiment, concrete raw material selection and preparation process are identical with embodiment 1, only adopt 5:3:5:5:3 on the proportioning of soil powder, kaolin, charcoal powder, graphite, high pigment carbon black, The lead core after making also satisfies the claimed effect of the present invention.

Embodiment 3

[0035] In the present embodiment, the specific raw material selection and preparation process are the same as in Example 1, only adopting 2:3: 4: 4:2 in the proportioning of soil powder, kaolin, charcoal powder, graphite, high-pigment carbon black, The lead core after making also satisfies the claimed effect of the present invention.

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Abstract

The invention belongs to the field of pencils, and particularly relates to a carbon and graphite integration pencil lead and a preparation method thereof. According to the preparation method, after elutriation, clay powder, kaolin, charcoal dust, graphite and high-color black are taken as raw materials and mixed into uniform dry powder; the uniformly mixed dry powder is kneaded, stored in a sealing mode and ground; the ground lead material is stored in a sealing mode and pressed; the pressed lead material is subjected to baking, roasting and cutting to obtain the carbon and graphite integration pencil lead. According to the carbon and graphite integration pencil lead and the preparation method, the defects of single graphite pencil leads and single charcoal leads are overcome, so that thephenomenon that in the process of writing or drawing, the carbon dust falls cannot occur, and the color concentration is ensured.

Description

technical field [0001] The invention belongs to the field of pencils, and in particular relates to a carbon-ink integrated pencil lead and a preparation method thereof. Background technique [0002] The lead of the pencil contains graphite. The hardness of the pencil is divided according to the amount of graphite in the lead. The higher the graphite content, the softer the lead and the darker the color; the lower the graphite content, the harder the lead and the lighter the color. . Regardless of the amount of graphite content, due to the nature of graphite itself, ordinary graphite refills have the characteristics of low absorbency, strong smoothness, high friction with paper, and easy modification of handwriting. manuscript. Charcoal pen painting is not easy to modify, and there are few models, little difference in concentration, and high absorbance. A lead can combine the excellent performances of graphite refills and carbon pen refills, avoiding the shortcomings of bo...

Claims

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Application Information

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IPC IPC(8): C09D13/00
CPCC09D13/00
Inventor 李杰章
Owner LONGKOU YIYOU STATIONERY IND
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