A correction stick for writing and its preparation method

Abstract

The invention discloses a writing correction stick and a preparation method thereof. The writing correction stick consists of the following components in parts by weight: 20-30 parts of titanium dioxide, 5-10 parts of lithopone, and 5-10 parts of light calcium powder 5~10 parts of heavy calcium powder, 8~12 parts of wollastonite powder, 5~10 parts of talcum powder, 8~12 parts of diatomaceous earth, 1~5 parts of calcium sulfate, 5~10 parts of magnesium hydroxide, wrought white powder 1 to 5 parts and 5 to 20 parts of binder; the preparation step first synthesizes the binder, then stirs and mixes the above materials evenly, and obtains a round rod or square rod-shaped correction rod for writing by using an injection molding method or a casting molding method; the present invention After the writing correction stick is rubbed on the paper, the thin layer of the contact surface between the stick body and the paper can quickly become soft, and has a strong viscosity, and a covering film thick enough to cover wrong handwriting can be obtained on the paper. After stopping the friction, it will soon The original hardness is restored, the writing is convenient, and the thickness of the wiped part on the paper is uniform, the hand feels good, and it is convenient to use and carry.

Description

technical field

[0001] The invention relates to the field of stationery, in particular to a correction stick for writing and a preparation method thereof. Background technique

[0002] At present, correction products are widely used. Common correction products include correction fluid and correction tape. The use of correction fluid is better, but since the correction fluid is in a liquid state, it is inconvenient to carry, and the organic solvent needs to be volatilized before it can be corrected, and it contains more organic solvents, which will pollute the air and affect The health of the user; the correction tape does not need to wait for time and can be written immediately, but its cost is relatively high, and when the waste paper modified by the correction tape is recycled, the correction tape cannot be turned into paper fibers, and it is difficult to separate the waste paper. Recycling makes a big impact.

[0003] Correction sticks can overcome the above shortcoming...

Examples

preparation example Construction

[0046] The present invention also includes a preparation method of a correction stick for writing, comprising the following steps:

[0047] In parts by weight, 20-30 parts of titanium dioxide, 5-10 parts of lithopone, 5-10 parts of light calcium powder, 5-10 parts of heavy calcium powder, 8-12 parts of wollastonite powder, and 5-10 parts of talcum powder , 8~12 parts of diatomaceous earth, 1~5 parts of calcium sulfate, 5~10 parts of magnesium hydroxide, 1~5 parts of wrought white powder and 5~20 parts of binder. Forming method or cast molding method to obtain round rod-shaped or square rod-shaped correction rods for writing;

[0048] The structural formula of described binding agent is:

[0049] .

[0050] Preferably, the preparation method of correction stick for writing comprises the following steps:

[0051] In parts by weight, 25 parts of titanium dioxide, 8 parts of lithopone, 6 parts of light calcium powder, 8 parts of heavy calcium powder, 10 parts of wollastonite ...

Embodiment 1

[0056] A correction stick for writing, which consists of the following components in parts by weight: 20g of titanium dioxide, 5g of lithopone, 5g of light calcium powder, 5g of heavy calcium powder, 8g of wollastonite powder, 5g of talcum powder, 8g of diatomaceous earth, sulfuric acid Calcium 1g, magnesium hydroxide 5g, wrought white powder 1g and binder 5g;

[0057] The structural formula of the binder is:

[0058] .

Embodiment 2

[0060] A correction stick for writing, in parts by weight, consists of the following components: 30g of titanium dioxide, 10g of lithopone, 10g of light calcium powder, 10g of heavy calcium powder, 12g of wollastonite powder, 10g of talcum powder, 12g of diatomaceous earth, sulfuric acid Calcium 5g, magnesium hydroxide 10g, wrought white powder 5g and binder 20g;

[0061] The structural formula of described binding agent is:

[0062] .

technical field

[0001] The invention relates to the field of stationery, in particular to a correction stick for writing and a preparation method thereof. Background technique

[0002] At present, correction products are widely used. Common correction products include correction fluid and correction tape. The use of correction fluid is better, but since the correction fluid is in a liquid state, it is inconvenient to carry, and the organic solvent needs to be volatilized before it can be corrected, and it contains more organic solvents, which will pollute the air and affect The health of the user; the correction tape does not need to wait for time and can be written immediately, but its cost is relatively high, and when the waste paper modified by the correction tape is recycled, the correction tape cannot be turned into paper fibers, and it is difficult to separate the waste paper. Recycling makes a big impact.

[0003] Correction sticks can overcome the above shortcoming...

Examples

preparation example Construction

[0046] The present invention also includes a preparation method of a correction stick for writing, comprising the following steps:

[0047] In parts by weight, 20-30 parts of titanium dioxide, 5-10 parts of lithopone, 5-10 parts of light calcium powder, 5-10 parts of heavy calcium powder, 8-12 parts of wollastonite powder, and 5-10 parts of talcum powder , 8~12 parts of diatomaceous earth, 1~5 parts of calcium sulfate, 5~10 parts of magnesium hydroxide, 1~5 parts of wrought white powder and 5~20 parts of binder. Forming method or cast molding method to obtain round rod-shaped or square rod-shaped correction rods for writing;

[0048] The structural formula of described binding agent is:

[0049] .

[0050] Preferably, the preparation method of correction stick for writing comprises the following steps:

[0051] In parts by weight, 25 parts of titanium dioxide, 8 parts of lithopone, 6 parts of light calcium powder, 8 parts of heavy calcium powder, 10 parts of wollastonite ...

Embodiment 1

[0056] A correction stick for writing, which consists of the following components in parts by weight: 20g of titanium dioxide, 5g of lithopone, 5g of light calcium powder, 5g of heavy calcium powder, 8g of wollastonite powder, 5g of talcum powder, 8g of diatomaceous earth, sulfuric acid Calcium 1g, magnesium hydroxide 5g, wrought white powder 1g and binder 5g;

[0057] The structural formula of the binder is:

[0058] .

Embodiment 2

[0060] A correction stick for writing, in parts by weight, consists of the following components: 30g of titanium dioxide, 10g of lithopone, 10g of light calcium powder, 10g of heavy calcium powder, 12g of wollastonite powder, 10g of talcum powder, 12g of diatomaceous earth, sulfuric acid Calcium 5g, magnesium hydroxide 10g, wrought white powder 5g and binder 20g;

[0061] The structural formula of described binding agent is:

[0062] .