CN102757696A - Dust-free chalk liquid and preparation method thereof - Google Patents

Abstract

The invention discloses a dust-free chalk liquid. The dust-free chalk liquid is characterized by being composed of components in percentage by weight as follows: 66% of edible alcohol, 3% of resin, 1% of butyl ether, 5% of purified water, 20% of titanium dioxide, and 5% of talcum powder. The preparation method of the dust-free chalk liquid comprises the steps of: firstly adding the purified water accounting for 5% and then adding the edible alcohol accounting for 43%; then adding the butyl ether accounting for 1% for preserving moisture and stirring for 30 min; then slowly adding the resin accounting for 3% in the stirring process and uniformly stirring while adding the resin slowly to form glue; then adding the titanium dioxide and the talcum powder into the glue liquid which accounts for 50% of the total amount of the formed glue liquid and grinding the glue liquid mixed with the titanium dioxide and the talcum powder for 20 min in a dispersion machine; and then adding the remaining 50% of glue and the remaining 23% of alcohol and stirring for 25 min so as to finish the production of the white chalk liquid. Compared with the prior art, the dust-free chalk liquid, disclosed by the invention, has the advantages that: a dust-free chalk in which the dust-free chalk liquid is filled can be attached to various smooth planes or blackboards and is convenient for writing, clear in writing, easy to erase, free from producing dust, safe, environment-friendly, and convenient to use.

Description

Dust-free chalk liquid and preparation method thereof

[technical field]

The present invention relates to the environmental protection teaching field, specifically relate to a kind of alternative teaching with dust-free chalk liquid of chalk and preparation method thereof.

[background technology]

General chalk all is disposable, frangible, and dust is serious, the disposable no-dust chalk of solid shape perhaps, consumption is big, fragile in actual the use, and cost is high.

[summary of the invention]

In order to overcome the deficiency of above-mentioned prior art, primary and foremost purpose of the present invention is to provide a kind of dust-free chalk liquid, is suitable for the environmental protection of teaching application, the easy dust-free chalk liquid of wiping.

Another object of the present invention is to provide the preparation method of above-mentioned dust-free chalk liquid.

Above-mentioned purpose of the present invention realizes through following technical scheme: a kind of dust-free chalk liquid is characterized in that: it is made up of following component by weight percentage:

Edible ethanol: 66%;

Resin 3%;

Butyl ether 1%;

Pure water 5%;

White titanium pigment 20%;

Talcum powder 5%.

The component of said dust-free chalk liquid also comprises food dye in forming, and food dye can be selected any color for use.

Dust-free chalk liquid of the present invention is divided into no odor type and two kinds of odor types is arranged, and also comprises 0.5～1% food flavour in being made up of the dust-free chalk fluid component of odor type.

The preparation method of above-mentioned dust-free chalk liquid may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue again, stirred 25 minutes; If just accomplishing, makes the chalk liquid of white;

F. if pastel liquid then adds food dye and 23% remaining alcohol again, stirred 10 minutes;

G. if there is the chalk liquid of odor type also need add 0.5～1% food flavour, stirs and got final product in 5-10 minute.

The present invention's advantage compared with prior art is: dust-free chalk liquid of the present invention is filled in the no-dust chalk, can adhere on various slick planes or the blackboard, is convenient to write, and writing is clear, is prone to wipe, and does not produce dust, and safety and environmental protection is easy to use.

[embodiment]

Below in conjunction with embodiment the present invention is further detailed:

Embodiment 1:

A kind of dust-free chalk liquid is characterized in that: it is made up of following component by weight percentage:

Edible ethanol: 66%;

Resin 3%;

Butyl ether 1%;

Pure water 5%;

White titanium pigment 20%;

Talcum powder 5%.

The preparation method of above-mentioned dust-free chalk liquid may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue and 23% remaining alcohol again, stirred 25 minutes, white chalk liquid is just accomplished making.

Embodiment 2:

A kind of dust-free chalk liquid is characterized in that: it is made up of following component by weight percentage:

Edible ethanol: 66%;

Resin 3%;

Butyl ether 1%;

Pure water 5%;

White titanium pigment 20%;

Talcum powder 5%.

The component of said dust-free chalk liquid also comprises food dye in forming, and food dye can be selected any color for use.

The preparation method of above-mentioned dust-free chalk liquid may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue again, stirred 25 minutes;

F. add food dye and 23% remaining alcohol, stir and got final product in 10 minutes.

Embodiment 3:

A kind of dust-free chalk liquid is characterized in that: it is made up of following component by weight percentage:

Edible ethanol: 66%;

Resin 3%;

Butyl ether 1%;

Pure water 5%;

White titanium pigment 20%;

Talcum powder 5%.

The component of said dust-free chalk liquid also comprises food dye in forming, and food dye can be selected any color for use.

Dust-free chalk liquid of the present invention is divided into no odor type and two kinds of odor types is arranged, and also comprises 0.8% food flavour in being made up of the dust-free chalk fluid component of odor type.

The preparation method of above-mentioned dust-free chalk liquid may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue again, stirred 25 minutes;

F. add food dye and 23% remaining alcohol, stirred 10 minutes;

G. add 0.5～1% food flavour, stir and got final product in 5-10 minute.

What should explain at last is: the foregoing description only be for clearly the present invention is described and is done for example; And be not the qualification to embodiment; Those of ordinary skill for affiliated field; On the basis of above-mentioned explanation, can also make other multi-form variation or change, need not here also can't give to all embodiments exhaustive, and the conspicuous variation of being amplified out thus or the change still be among protection scope of the present invention.

Claims (6)

1. dust-free chalk liquid, it is characterized in that: it is made up of following component by weight percentage:

Edible ethanol: 66%;

Resin 3%;

Butyl ether 1%;

Pure water 5%;

White titanium pigment 20%;

Talcum powder 5%.

2. a kind of dust-free chalk liquid according to claim 1 is characterized in that: the component of said dust-free chalk liquid also comprises food dye in forming.

3. a kind of dust-free chalk liquid according to claim 3 is characterized in that: said dust-free chalk fluid component also comprises 0.5～1% food flavour in forming.

4. the preparation method of a kind of dust-free chalk liquid according to claim 1 is characterized in that: may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue and 23% remaining alcohol, stirred 25 minutes, white chalk liquid is just accomplished making.

5. the preparation method of a kind of dust-free chalk liquid according to claim 2 is characterized in that: may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue again, stirred 25 minutes;

F. add food dye and 23% remaining alcohol, stir and got final product in 10 minutes.

6. the preparation method of a kind of dust-free chalk liquid according to claim 3 is characterized in that: may further comprise the steps:

A. add pure water 5% earlier, add edible ethanol 43% again, prevent the alcohol volatilization;

B. add butyl ether 1% and preserve moisture, pin the moisture of liquid, prevent volatilization, stirred 30 minutes;

C. in whipping process, slowly add resin 3%, slowly add resin, the group of having prevented evenly stirs and processes glue;

D. get and process 50% of glue total amount of liquid, add white titanium pigment and talcum powder entering dispersion machine and ground 20 minutes;

E. add remaining 50% glue again, stirred 25 minutes;

F. add food dye and 23% remaining alcohol, stirred 10 minutes;

G. add 0.5～1% food flavour, stir and got final product in 5-10 minute.