CN1632007A - Self-discoloration chalk - Google Patents
Self-discoloration chalk Download PDFInfo
- Publication number
- CN1632007A CN1632007A CN 200410065653 CN200410065653A CN1632007A CN 1632007 A CN1632007 A CN 1632007A CN 200410065653 CN200410065653 CN 200410065653 CN 200410065653 A CN200410065653 A CN 200410065653A CN 1632007 A CN1632007 A CN 1632007A
- Authority
- CN
- China
- Prior art keywords
- chalk
- discoloration
- self
- naphthalene
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
A automatic fading chalk uses the substance which sublimation slowly in indoor temperature as cooling material,by adding developer,mixing with strengthening agent and sticker and injection molding to be produced. Since the coloring material is easy to sublimation,making the handwriting sublimation slowly and disappear automatically,convenient for usage.
Description
Technical field:
The present invention relates to write the chalk of using chalk, particularly a kind of self-discoloration.
Background technology:
Present chalk, the writing after writing can not disappear automatically and fade, and need manually wipe.In production, in order to the chalk of ruling, after workpiece processing, to wipe line and comparatively bother, the writing on some material is difficult for thoroughly removing, as the cloth in the clothing industry, the line when cutting out, easy-clear was unclean after sanction was good, used trouble.
Summary of the invention:
The present invention seeks to be to provide a kind of, use with convenient writing the back writing chalk of self-discoloration disappearance within a certain period of time.
The solution of the present invention is: adopting the material that at room temperature slowly distils is coloured material, adds developer, and mixes with strengthening agent, tackiness agent, makes through the fusion injection molding.
Coloured material is to adopt M-nitro benzoic acid, Whitfield's ointment, anhydrous maleic acid, phenol, 2-Naphthol, naphthyl alcohol, naphthalene, 1, one or more in 4-naphthoquinones, 2-naphthylamines, naphthalidine, the anhydrous phthalic acid; Developer adopts Vanillin, tonka bean camphor, naphthalene, ρ benzoquinones, 2,3-two chloro-1, and one or more in 4-naphthoquinones and the naphthyl alcohol adopt different developers, to obtain distinct colors; Strengthening agent adopts one or more in the solid fatty acids such as Palmiticacid, stearic acid, twenty diacid; Tackiness agent adopts one or more in palm wax, paraffin, haze tallow, the polyethylene wax.
Advantage of the present invention is: owing to adopted the coloured material of easy distillation, writing is slowly distilled, final automatic the disappearance reaches the purpose of self-discoloration, made things convenient for use.
Embodiment:
Embodiment adopts different coloured materials and developer, the chalk of preparation different colours.For example mix a kind of in M-nitro benzoic acid, anhydrous phthalic acid, Whitfield's ointment and Vanillin, tonka bean camphor, naphthalene, the ρ-dichlorobenzene whitely; Mix greenly with quinhydrone(s); With ρ-benzoquinones, 2, it then is yellow that 3-dichloro 1,4-benzoquinones and naphthyl alcohol mix.
Its proportioning is: (unit: g)
Coloured material: M-nitro benzoic acid 1000
Anhydrous phthalic acid 1000
Whitfield's ointment 2000
Developer: naphthalene 1000
Tackiness agent: haze tallow 200
Strengthening agent: stearic acid 280
Below respectively organize material and put heating kettle into, melting mixing evenly back is injected mould, the cooling back.
Claims (5)
1. the chalk of a self-discoloration is characterized in that: adopt at room temperature slowly that the material of distillation is a coloured material, add developer, and mix with strengthening agent, tackiness agent, make through the fusion injection molding.
2. the chalk of self-discoloration as claimed in claim 1, it is characterized in that: coloured material adopts M-nitro benzoic acid, Whitfield's ointment, anhydrous maleic acid, phenol, 2-Naphthol, naphthyl alcohol, naphthalene, 1, one or more in 4-naphthoquinones, 2-naphthylamines, naphthalidine, the anhydrous phthalic acid.
3. the chalk of self-discoloration as claimed in claim 1 is characterized in that: developer employing Vanillin, tonka bean camphor, naphthalene, ρ benzoquinones, 2,3-two chloro-1, one or more in 4-naphthoquinones and the naphthyl alcohol.
4. the chalk of self-discoloration as claimed in claim 1 is characterized in that: one or more in the solid fatty acids such as strengthening agent employing Palmiticacid, stearic acid, twenty diacid.
5. the chalk of self-discoloration as claimed in claim 1 is characterized in that: one or more in tackiness agent employing palm wax, paraffin, haze tallow, the polyethylene wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410065653 CN1632007A (en) | 2004-11-09 | 2004-11-09 | Self-discoloration chalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410065653 CN1632007A (en) | 2004-11-09 | 2004-11-09 | Self-discoloration chalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1632007A true CN1632007A (en) | 2005-06-29 |
Family
ID=34846514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410065653 Pending CN1632007A (en) | 2004-11-09 | 2004-11-09 | Self-discoloration chalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1632007A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386393C (en) * | 2006-09-30 | 2008-05-07 | 山西大学 | Tailor's chalk and its making process |
| CN100432166C (en) * | 2006-09-21 | 2008-11-12 | 山西大学 | Tailor's chalk capable of fading and preparation method thereof |
| CN102952433A (en) * | 2011-08-26 | 2013-03-06 | 赵志华 | Water-soluble chalk |
| CN103073955A (en) * | 2013-01-14 | 2013-05-01 | 山西大学 | Colored dust-free chalk capable of fading automatically and preparation method thereof |
| CN103436103A (en) * | 2013-08-30 | 2013-12-11 | 龙启知 | Wiping-free invisible self-disappearing chalk |
-
2004
- 2004-11-09 CN CN 200410065653 patent/CN1632007A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432166C (en) * | 2006-09-21 | 2008-11-12 | 山西大学 | Tailor's chalk capable of fading and preparation method thereof |
| CN100386393C (en) * | 2006-09-30 | 2008-05-07 | 山西大学 | Tailor's chalk and its making process |
| CN102952433A (en) * | 2011-08-26 | 2013-03-06 | 赵志华 | Water-soluble chalk |
| CN102952433B (en) * | 2011-08-26 | 2015-05-13 | 赵志华 | Water-soluble chalk |
| CN103073955A (en) * | 2013-01-14 | 2013-05-01 | 山西大学 | Colored dust-free chalk capable of fading automatically and preparation method thereof |
| CN103073955B (en) * | 2013-01-14 | 2014-10-22 | 山西大学 | Colored dust-free chalk capable of fading automatically and preparation method thereof |
| CN103436103A (en) * | 2013-08-30 | 2013-12-11 | 龙启知 | Wiping-free invisible self-disappearing chalk |
| CN103436103B (en) * | 2013-08-30 | 2015-12-23 | 龙启知 | Exempt to wipe the stealthy chalk that certainly disappears |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |