CN106696523A - Hand adhering preventing chalk - Google Patents
Hand adhering preventing chalk Download PDFInfo
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- CN106696523A CN106696523A CN201510795381.1A CN201510795381A CN106696523A CN 106696523 A CN106696523 A CN 106696523A CN 201510795381 A CN201510795381 A CN 201510795381A CN 106696523 A CN106696523 A CN 106696523A
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Abstract
The invention belongs to hand adhering preventing chalk, and relates to the chemical field. Powder on the surface of existing chalk is prone to disengaging, and is prone to adhering to the three fingers, hand washing is needed, and inconvenience is brought. According to the purpose, the hand adhering avoiding chalk is provided. To achieve the above purpose, a layer of gluing film (2) is further arranged on the outer surface of the annular side face of a chalk body (1). The gluing film (2) tightly adheres to the whole outer surface of the annular side face of the chalk body (1). The gluing film (2) is mainly composed of a gluing agent, and the thickness of the gluing film (2) is smaller than 0.2 mm. The hand adhering preventing chalk has two beneficial effects that hand adhering is avoided, and tenacity is improved.
Description
Technical field
The present invention relates to chemical field, specifically, belong to a kind of chalk.
Background technology
Used chalk, although also apply decades, still suffers from many weak points, such as：
It is too crisp, easily snap off.
When mill is short to 1,2 centimetres, three fingers are difficult to hold steadily.
The powder on surface easily comes off, and is readily adhered on three fingers, it is necessary to wash one's hands more inconvenient.
The present invention proposes solution just for " easily touching with one's hand " this point in many deficiencies of traditional chalk.
The content of the invention
It is an object of the invention to provide a kind of chalk do not touched with one's hand, to achieve these goals, the present invention is adopted the following technical scheme that：First, overall technological scheme summary of the present invention
Technical scheme includes following content, but is not limited only to following content：
1st, the invention belongs to a kind of chalk for preventing and touching with one's hand, including chalk body, it is characterized in that,
The outer surface drawn in the annular side of the chalk body 1 also includes one layer of cementing film 2, and the cementing film 2 is adhered tightly to the whole outer surface of the annular side of the chalk body 1；
The cementing film 2 is mainly made up of adhesive, and its thickness is less than 0.2 millimeter.
2nd, the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material and processing method of the cementing film 2 are as follows：
First, prepare 100 parts of flour, 100 parts of clear water, 2 parts of the concentrated sulfuric acid, glycerine 1-5 parts, 3 parts of salicylic acid, alcohol it is a little；
Second, diluting concentrated sulfuric acid is dividedly in some parts flour and stirs to debita spissitudo；
3rd, small fire heating is stirred simultaneously, after bleach again plus a small amount of salicylic acid, it is cold after.
3rd, the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material of the cementing film 2 mainly include 20 parts of white dextrin, 30 parts of alum, 30 parts of water, 2 parts of glycerine, 2 parts of liquid carbolic acid, and processing mode is omitted.
4th, the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material of the cementing film 2 mainly include that 1 part of starch, 7 parts of water, 0.3 part of alum, carbolic acid are micro, and processing method is omitted.
Preferably, further, also including preservative.
Preferably, further, also including aromatic material.
Usage of the invention is just the same with the usage of common chalk, and when using the invention to write, the cementing film 2 is gradually worn away together with chalk body 1, and sticks on blackboard.
The present invention also improves the toughness of chalk body 1 simultaneously, is less easily broken off.
In summary, the present invention has two advantages for not touching with one's hand and improving toughness.
Brief description of the drawings
Fig. 1 is structural representation of the invention
In figure：Chalk body 1, cementing film 2.
Specific embodiment
The present invention discloses four embodiments altogether, carefully states one by one as follows：
First, embodiment one
As shown in Figure 1, embodiment one belongs to a kind of chalk for preventing and touching with one's hand, including chalk body 1, and one layer of cementing film 2 is also included in the outer surface of the annular side of the chalk body 1, the cementing film 2 is adhered tightly to the whole outer surface of the annular side of the chalk body 1, about 0.15 millimeter of thickness.
The raw material and processing method of the cementing film 2 are as follows：
First, prepare 100 parts of flour, 100 parts of clear water, 2 parts of the concentrated sulfuric acid, glycerine 1-5 parts, 3 parts of salicylic acid, alcohol it is a little；
Second, diluting concentrated sulfuric acid is dividedly in some parts chalk and stirs to debita spissitudo；
3rd, small fire heating is stirred simultaneously, after bleach again plus a small amount of salicylic acid, it is cold after.
2nd, embodiment two
As shown in Figure 1, embodiment two belongs to a kind of chalk for preventing and touching with one's hand, including chalk body 1, and one layer of cementing film 2 is also included in the outer surface of the annular side of the chalk body 1, the cementing film 2 is adhered tightly to the whole outer surface of the annular side of the chalk body 1, about 0.19 millimeter of thickness.
The raw material of the cementing film 2 mainly include 20 parts of white dextrin, 30 parts of alum, 30 parts of water, 2 parts of glycerine, 2 parts of liquid carbolic acid, and processing mode is omitted.
3rd, embodiment three
As shown in Figure 1, embodiment three belongs to a kind of chalk for preventing and touching with one's hand, including chalk body 1, and one layer of cementing film 2 is also included in the outer surface of the annular side of the chalk body 1, the cementing film 2 is adhered tightly to the whole outer surface of the annular side of the chalk body 1, about 0.12 millimeter of thickness.
The raw material of the cementing film 2 mainly include that 1 part of starch, 7 parts of water, 0.3 part of alum, carbolic acid are micro, and processing method is omitted.
Embodiment three also includes preservative and aromatic material.
Above-mentioned is overall technological scheme of the invention; those skilled in the art can be by the enlightenment of such scheme; on the premise of creative work is not carried out; can obtain general technical scheme extension; the significantly creative approximation technique scheme of the nothing, still falls within protection scope of the present invention.
Claims (4)
1. a kind of chalk for preventing from touching with one's hand, including chalk body, it is characterized in that,
Also include one layer of cementing film (2) in the outer surface of the annular side of the chalk body (1), the cementing film (2) is tight
The whole outer surface of the close annular side for sticking to the chalk body (1)；
The cementing film (2) is mainly made up of adhesive, and its thickness is less than 0.2 millimeter.
2. the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material and processing method of the cementing film (2) are as follows：
First, prepare 100 parts of flour, 100 parts of clear water, 2 parts of the concentrated sulfuric acid, glycerine 1-5 parts, 3 parts of salicylic acid, alcohol it is few
Perhaps；
Second, diluting concentrated sulfuric acid is dividedly in some parts flour and stirs to debita spissitudo；
3rd, small fire heating is stirred simultaneously, after bleach again plus a small amount of salicylic acid, it is cold after.
3. the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material of the cementing film (2) mainly include 20 parts of white dextrin, 30 parts of alum, 30 parts of water, 2 parts of glycerine,
2 parts of liquid carbolic acid, processing mode is omitted.
4. the chalk for preventing from touching with one's hand according to claim 1, it is characterized in that,
The raw material of the cementing film (2) mainly include that 1 part of starch, 7 parts of water, 0.3 part of alum, carbolic acid are micro, processing
Method is omitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795381.1A CN106696523A (en) | 2015-11-18 | 2015-11-18 | Hand adhering preventing chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510795381.1A CN106696523A (en) | 2015-11-18 | 2015-11-18 | Hand adhering preventing chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106696523A true CN106696523A (en) | 2017-05-24 |
Family
ID=58932312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510795381.1A Pending CN106696523A (en) | 2015-11-18 | 2015-11-18 | Hand adhering preventing chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106696523A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099191A (en) * | 2016-02-22 | 2017-08-29 | 廖伟登 | The writing on the blackboard chalk of hand-dirtying-free finger |
-
2015
- 2015-11-18 CN CN201510795381.1A patent/CN106696523A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107099191A (en) * | 2016-02-22 | 2017-08-29 | 廖伟登 | The writing on the blackboard chalk of hand-dirtying-free finger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |