CN103849220A - Processing method of carbonized 2B pencil lead - Google Patents

Abstract

A processing method of carbonized 2B pencil lead is characterized by comprising the following steps: (1) preparing grade I talcum powder of 1800 mesh for standby; (2) placing 20-30 kg of calcium carbonate, 25-35 kg of an adhesion agent, 10-20 kg of a pigment and 10-15 kg of polymer wax in 80 kg of a main material; (3) evenly stirring the material in the step (2); (4) rolling the kneaded material into sheets with thickness of 0.5 mm and moisture of 13 by a roller press; (5) storing the pressed material into a storage can for 72 h; and (6) pressing the material in the step (5) into powdered pencil lead of a certain specification. The invention has the following positive effects: the process provided by the invention is obtained by simplifying and improving an existing process without large-scale improvement of machinery and equipment, therefore the method can be directly applied to the existing production process, and is simple and practicable.

Description

A kind of carbonization 2B lead for retractable pencil working method

Technical field

The present invention relates to pencil manufacture field, relate in particular to a kind of carbonization 2B lead for retractable pencil working method.

Background technology

Now, drawing in the world crayon is mainly to use toner rod, due to soft, is easy to fracture, and adds not packaging of outside, is easy to pollute; Next is expensive, and few people are using always at home.Since the thick and heavy agile sense that has again watercolor painting of the existing oil painting of crayon, painting effect uniqueness.Earlier 1900s, Lee's cheese imported China into crayon, and crayon is also slowly grown up in China, but owing to being to be that raw material is soft with mineral raw material always, was easy to fracture not portable, and market is always depressed.

Summary of the invention

The present invention seeks to the defect for prior art, the working method of carbonization lead for retractable pencil is provided.Its objective is the processing technology of utilizing modern pencil, taking talcum powder as main raw material, through other materials batching, produce a kind of carbonization lead for retractable pencil, realize the transformation of pencil high added value.

The present invention is achieved through the following technical solutions, and has developed a kind of carbonization 2B lead for retractable pencil working method, it is characterized in that comprising the following steps:

(1) be 1800 orders by one-level talcum powder order number, with for subsequent use;

(2) in major ingredient 80kg, place calcium carbonate 5-10kg, adhesion agent 9-12kg, pigment 12-15kg, polymer wax 10-15kg;

(3) material in step (2) is stirred;

(4) kneaded material being gone out to thickness with roll squeezer roll-in is 0.2-0.5 millimeter, the thin slice that moisture content is 13;

(5) put the good material of roll-in into hold-up vessel and store 72 hours, with for subsequent use;

(6) by the carbonization lead for retractable pencil of pressing core machine extrusion certain specification for the material of step (5).

In described step (3), kneader is mediated 3-4 hour, and temperature is 30-45 degree Celsius.

Positively effect of the present invention is: the present invention is taking talcum powder as major ingredient, be aided with formula accurately, by the production technique of science, adopt the technological method of common production lead for retractable pencil, develop a kind of new high grade colorful lead for retractable pencil, make the high added value of pencil further widen thinking.And because technique of the present invention is that in existing technological process, the upper simplification in basis is improved, machinery equipment is not improved on a large scale, first there is individual production technique so can directly apply to, simple.

Specific embodiment:

Embodiment 1:

First prepare major ingredient: fineness is 1800 object talcum powder 80kg.In major ingredient 80kg, place calcium carbonate 20kg, adhesion agent 25kg, pigment 20kg, polymer wax 10kg; (3) material in step (2) is stirred; Above material is stirred, mediate 3 hours, temperature is 35 degrees Celsius, and then going out thickness with roll squeezer roll-in is 0.5 millimeter, the thin slice of moisture content 13, then carry out the storage of 72 hours, and finally extrude the carbonization lead for retractable pencil of Φ 5.0, dry, for subsequent use to do.

Embodiment 2:

First prepare major ingredient: fineness is 1800 object talcum powder 80kg.In major ingredient 80kg, place calcium carbonate 25kg, adhesion agent 30kg, pigment 15kg, polymer wax 10kg; (3) material in step (2) is stirred; Above material is stirred, mediate 3 hours, temperature is 35 degrees Celsius, and then going out thickness with roll squeezer roll-in is 0.5 millimeter, the thin slice of moisture content 13, then carry out the storage of 72 hours, and finally extrude the carbonization lead for retractable pencil of Φ 5.0, dry, for subsequent use to do.

In actual applications; those skilled in the art completely can be in technical field scheme of the present invention; in actual applications; those skilled in the art is completely in technical scheme of the present invention; other parameters of choose reasonable; but the technical scheme substance of protecting with the present invention is identical, still falls within the scope of protection of the present invention.

Claims (2)

1. a carbonization 2B lead for retractable pencil working method, is characterized in being to comprise the following steps:

(1) be 1800 orders by one-level talcum powder order number, with for subsequent use;

(2) in major ingredient 80kg, place calcium carbonate 20-30kg, adhesion agent 25-35kg, pigment 10-20kg, polymer wax 10-15kg;

(3) material in step (2) is stirred;

(4) kneaded material being gone out to thickness with roll squeezer roll-in is 0.2-0.5 millimeter, the thin slice that moisture content is 13;

(5) put the good material of roll-in into hold-up vessel and store 72 hours, with for subsequent use;

(6) by the carbonization lead for retractable pencil of pressing core machine extrusion certain specification for the material of step (5).

2. according to a kind of carbonization 2B lead for retractable pencil working method described in claims 1, it is characterized in that in described step (3), kneader is mediated 3-4 hour, temperature is 30-45 degree Celsius.