CN103722938A - Clean chalk - Google Patents

Clean chalk Download PDF

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Publication number
CN103722938A
CN103722938A CN201210383910.3A CN201210383910A CN103722938A CN 103722938 A CN103722938 A CN 103722938A CN 201210383910 A CN201210383910 A CN 201210383910A CN 103722938 A CN103722938 A CN 103722938A
Authority
CN
China
Prior art keywords
chalk
clean
rough
present
user
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
Application number
CN201210383910.3A
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Chinese (zh)
Inventor
向国忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201210383910.3A priority Critical patent/CN103722938A/en
Publication of CN103722938A publication Critical patent/CN103722938A/en
Pending legal-status Critical Current

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Abstract

The invention relates to clean chalk which comprises a chalk body. The clean chalk is characterized in that the surface of the side wall of the chalk body is rough, and an edible gelatine layer is arranged on the rough surface of the side wall. The clean chalk is simple in structure and low in cost, effective quarantine can be formed between the surface of the chalk and a user, and the phenomenon that a large amount of chalk dust falls on a hand of a user during writing is avoided.

Description

A kind of clean chalk
Technical field
The present invention relates to a kind of chalk, relate in particular to a kind of clean chalk.
Background technology
The main deficiency that the chalk using now exists is that teacher can be stained with on hand a large amount of chalk dusts in writing process, if will stick in because of carelessness on clothes, therefore needs to wash one's hands in time.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of clean chalk simple in structure, with low cost.
For addressing the above problem, the clean chalk of one of the present invention, comprises chalk body, it is characterized in that: the sidewall surfaces of described chalk body is rough-shape, and this coarse shape sidewall surfaces is provided with edible gelatin layer.
The present invention compared with prior art has the following advantages:
1, owing to being provided with nontoxic, harmless edible gelatin layer in the present invention, therefore, to user's health, can not cause infringement.
2, due to chalk surface uniform of the present invention wrap up edible gelatin layer, therefore, can make between chalk surface and user to form effectively isolation, the phenomenon of having avoided user can be stained with on hand a large amount of chalk dusts in writing process occurs.
3, the present invention is simple in structure, with low cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
In figure: 1-chalk body, 2-edible gelatin layer.
The specific embodiment
As shown in Figure 1, a kind of clean chalk, comprises chalk body 1.The sidewall surfaces of chalk body 1 is rough-shape, and this coarse shape sidewall surfaces is provided with edible gelatin layer 2.

Claims (1)

1. a clean chalk, comprises chalk body (1), it is characterized in that: the sidewall surfaces of described chalk body (1) is rough-shape, and this coarse shape sidewall surfaces is provided with edible gelatin layer (2).
CN201210383910.3A 2012-10-11 2012-10-11 Clean chalk Pending CN103722938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210383910.3A CN103722938A (en) 2012-10-11 2012-10-11 Clean chalk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210383910.3A CN103722938A (en) 2012-10-11 2012-10-11 Clean chalk

Publications (1)

Publication Number Publication Date
CN103722938A true CN103722938A (en) 2014-04-16

Family

ID=50447337

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210383910.3A Pending CN103722938A (en) 2012-10-11 2012-10-11 Clean chalk

Country Status (1)

Country Link
CN (1) CN103722938A (en)

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86207837U (en) * 1986-10-11 1987-05-13 王凤祥 Chalk with protective coating
CN86204320U (en) * 1986-11-19 1987-06-03 胡建人 Chalk with membrane
CN1046746A (en) * 1989-04-29 1990-11-07 刘凤义 Film enveloped chalk is made liquid
CN2172717Y (en) * 1993-03-02 1994-07-27 林石 Chalk without polluting hand
CN2219205Y (en) * 1995-01-25 1996-02-07 章培善 Sanitary chalk
CN2220366Y (en) * 1995-04-03 1996-02-21 赵建平 Durable chalk without touching hand
DE19860258A1 (en) * 1998-12-24 2000-06-29 Nele Kosmetik Gmbh Manufacturing method for cosmetic pens with wood sleeve uses spacer cartridges glued between timber plates and melted out to form mold for pen cartridge
JP2000253929A (en) * 1999-03-10 2000-09-19 I Meito:Kk Cosmetic pencil with thick and narrow cores
CN2400285Y (en) * 1999-11-26 2000-10-11 刘旭光 Sanitary durable chalks
CN2543714Y (en) * 2002-06-08 2003-04-09 王庆元 Surface coated powder free chalk
CN2544957Y (en) * 2001-12-14 2003-04-16 梁树清 Environmentally friendly chalk
CN2557336Y (en) * 2002-03-12 2003-06-25 刘德喜 Environment protection chalk
CN2581190Y (en) * 2002-12-03 2003-10-22 北京市门头沟区粉笔厂 Environmental protection chalk capable of making hand hold clean
CN1597337A (en) * 2004-09-07 2005-03-23 邓社文 Manufacturing method of sanitary chalk
CN1676558A (en) * 2005-01-31 2005-10-05 罗南博 Preparation for preventing chalk dust from sticking hand
CN1817659A (en) * 2006-03-15 2006-08-16 周巽 Chalk having no pollution on finger for writing
CN2875822Y (en) * 2006-03-08 2007-03-07 孙一鸣 Hand clean dustless chalk
CN2913028Y (en) * 2006-05-24 2007-06-20 张伟 Dustless sanitation chalk
CN200992047Y (en) * 2006-12-29 2007-12-19 程思 Clean chalk
CN101423627A (en) * 2008-10-24 2009-05-06 山西大学 Polymer-coated materials for solid writing substance and polymer-coated method thereof
CN202123836U (en) * 2011-06-14 2012-01-25 马栋材 Clean hand protecting chalk

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86207837U (en) * 1986-10-11 1987-05-13 王凤祥 Chalk with protective coating
CN86204320U (en) * 1986-11-19 1987-06-03 胡建人 Chalk with membrane
CN1046746A (en) * 1989-04-29 1990-11-07 刘凤义 Film enveloped chalk is made liquid
CN2172717Y (en) * 1993-03-02 1994-07-27 林石 Chalk without polluting hand
CN2219205Y (en) * 1995-01-25 1996-02-07 章培善 Sanitary chalk
CN2220366Y (en) * 1995-04-03 1996-02-21 赵建平 Durable chalk without touching hand
DE19860258A1 (en) * 1998-12-24 2000-06-29 Nele Kosmetik Gmbh Manufacturing method for cosmetic pens with wood sleeve uses spacer cartridges glued between timber plates and melted out to form mold for pen cartridge
JP2000253929A (en) * 1999-03-10 2000-09-19 I Meito:Kk Cosmetic pencil with thick and narrow cores
CN2400285Y (en) * 1999-11-26 2000-10-11 刘旭光 Sanitary durable chalks
CN2544957Y (en) * 2001-12-14 2003-04-16 梁树清 Environmentally friendly chalk
CN2557336Y (en) * 2002-03-12 2003-06-25 刘德喜 Environment protection chalk
CN2543714Y (en) * 2002-06-08 2003-04-09 王庆元 Surface coated powder free chalk
CN2581190Y (en) * 2002-12-03 2003-10-22 北京市门头沟区粉笔厂 Environmental protection chalk capable of making hand hold clean
CN1597337A (en) * 2004-09-07 2005-03-23 邓社文 Manufacturing method of sanitary chalk
CN1676558A (en) * 2005-01-31 2005-10-05 罗南博 Preparation for preventing chalk dust from sticking hand
CN2875822Y (en) * 2006-03-08 2007-03-07 孙一鸣 Hand clean dustless chalk
CN1817659A (en) * 2006-03-15 2006-08-16 周巽 Chalk having no pollution on finger for writing
CN2913028Y (en) * 2006-05-24 2007-06-20 张伟 Dustless sanitation chalk
CN200992047Y (en) * 2006-12-29 2007-12-19 程思 Clean chalk
CN101423627A (en) * 2008-10-24 2009-05-06 山西大学 Polymer-coated materials for solid writing substance and polymer-coated method thereof
CN202123836U (en) * 2011-06-14 2012-01-25 马栋材 Clean hand protecting chalk

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C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20140416

RJ01 Rejection of invention patent application after publication