CN101338097A - Special lead of pencil - Google Patents
Special lead of pencil Download PDFInfo
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- CN101338097A CN101338097A CNA2008100417118A CN200810041711A CN101338097A CN 101338097 A CN101338097 A CN 101338097A CN A2008100417118 A CNA2008100417118 A CN A2008100417118A CN 200810041711 A CN200810041711 A CN 200810041711A CN 101338097 A CN101338097 A CN 101338097A
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- pencil
- pencil lead
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Abstract
The invention relates to single-component special pencil lead which is prepared with graphite as tinctorial strength, clay as binder, one among tallow acid oil and paraffin or more than one mixture as colorant. Because the prescription is reasonable, the invention has quite high hardness while making sure the pencil lead has quite high concentration. Because of the high concentration, the mark written by the pencil lead forms quite large contrast with the background, so that the mark written by the pencil lead can be still easily identified on special occasions with poor visibility; but the special pencil lead has larger core stress than that of the pencil lead with equivalent concentration under standard ratio, so that the pencil lead is not easy to be broken and can be used normally.
Description
Affiliated technical field
The present invention relates to a kind of is the writing material of feature with its physical properties, and relates more specifically to a kind of hard and dense special lead of pencil.
Background technology
Press pencil industry standard QB/T 2774-2006 regulation, general conventional pencil adopts the Nu Shi hardness (HK) of material to increase progressively successively by its pen core to be divided into 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H, 14 kinds of 5H, 6H, the softest 6B is 5.0～8.0HK, and the hardest 6H is 45.0～53.0HK.HB commonly used and the Main physical index of 3B then are:
The Nu Shi hardness of HB is 18.0～23.0HK, the core point is stressed 〉=and 9.80N, concentration (absorbancy) 〉=0.30;
The Nu Shi hardness of 3B is 11.0～14.0HK, the core point is stressed 〉=and 9.31N, concentration (absorbancy) 〉=0.40.
Now for guaranteeing that the user still sees the vestige that pencil-lead is write easily clearly under the relatively poor special occasions of visibility meter, promptly need the pencil-lead that adopts concentration higher, allow the bigger contrast of pencil-lead institute's written trace and background formation.But the pencil-lead that concentration is higher is often softer, and the core point is stressed less, fractures easily, and promptly the concentration of pen core and core point is stressed is the performance index of two reverse strains.
Existing certain special occasions, used pen need reach the concentration that is equivalent to 3B, makes written trace and the background bigger contrast of formation and distinguishes clear easily; But it is stressed that used pen needs to reach the core point that is equivalent to HB again, easily broken smoothly and not core when having good intensity pencil being write.
Summary of the invention
In order to overcome the shortcoming that prior art exists, the invention provides a kind of graphite pencil core of single-component.It is formulated by tinting strength, tackiness agent, tinting material etc.This pencil-lead has the concentration height and the stressed big characteristic of core point, and pencil-lead institute's written trace that concentration is high and the bigger contrast of background formation are still distinguished the vestige that pencil-lead is clearly write easily under the relatively poor special occasions of visibility meter; The stressed big pen core of core point is frangibility not, and is easy to use.Pencil-lead provided by the invention has the excellent effect of high-efficiency high-quality.
Special lead of pencil of the present invention is formed by following prescription:
Each constituent all is the commercial goods in the above-mentioned prescription.
Tinting strength is a graphite, and it is the topmost composition of special lead of pencil, and forms written trace, and it drops into many more, and the concentration of pen core is dense more, but the core point is stressed more little, and pen core fractures easily.Present embodiment is selected 194 commercially available graphite for use.
Tackiness agent is commercially available clay.Present embodiment is selected the Liyang clay for use, and it is glued together with each proportioning material, becomes the skeleton of pen core after sintering solidifies, and it drops into many more, and the hardness of pen core is high more.
Tinting material is one or more the mixture in cattle and sheep fat and the paraffin.Tinting material is lubricate in proportioning, strengthens the coloring effect of tinting strength.
The invention has the beneficial effects as follows, adopt reasonable scientific formula, overcome the shortcoming that exists in the prior art, described special lead of pencil, institute's written trace and background form bigger contrast, still distinguish the vestige that pencil-lead is clearly write under the relatively poor special occasions of visibility meter easily; But have than stressed with the bigger core point of isoconcentration pencil-lead under the standard proportioning, pen core is frangibility not, guarantees normally to use.
Embodiment
The following examples will the invention will be further elaborated, can more intactly understand the present invention and see advantage of the present invention, but not limit the scope of the invention.
Embodiment 1: a kind of special lead of pencil, and it consists of (weight ratio):
194 graphite 73
Liyang clay 14
Cattle and sheep fat 6
Paraffin 7
By the special lead of pencil of this formulated, its Nu Shi hardness is 18.0～20.0HK, the stressed 11.0N of core point, concentration (absorbancy) 0.43.This index is better than the 3B concentration of pencil standard and the Nu Shi hardness of HB, desired result according to the invention.
Embodiment 2: a kind of special lead of pencil, and it consists of (weight ratio):
194 graphite 72
Liyang clay 17
Cattle and sheep fat 5
Paraffin 6
By the special lead of pencil of this formulated, its Nu Shi hardness is 19.0～22.0HK, the stressed 12.0N of core point, concentration (absorbancy) 0.42.This index is better than the 3B concentration of pencil standard and the Nu Shi hardness of HB, desired result according to the invention
Embodiment 3: a kind of special lead of pencil, and it consists of (weight ratio):
194 graphite 70
Liyang clay 19
Cattle and sheep fat 5
Paraffin 6
By the special lead of pencil of this formulated, its Nu Shi hardness is 20.0～23.0HK, the stressed 13.0N of core point, concentration (absorbancy) 0.40.This index is equivalent to the 3B concentration of pencil standard and the Nu Shi hardness of HB, has dense and hard characteristic, desired result according to the invention.
Claims (4)
1. special lead of pencil is characterized in that forming by following prescription:
Constituent weight percent (%)
Tinting strength 70～74
Tackiness agent 12～21
Tinting material 9～14.
2. by the described special lead of pencil of claim 1, it is characterized in that: described tinting strength is a graphite.
3. by the described special lead of pencil of claim 1, it is characterized in that: described tackiness agent is a clay.
4. by the described special lead of pencil of claim 1, it is characterized in that: described tinting material is one or more the mixture in cattle and sheep fat and the paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100417118A CN101338097B (en) | 2008-08-15 | 2008-08-15 | Special lead of pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100417118A CN101338097B (en) | 2008-08-15 | 2008-08-15 | Special lead of pencil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338097A true CN101338097A (en) | 2009-01-07 |
| CN101338097B CN101338097B (en) | 2011-03-16 |
Family
ID=40212269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100417118A Active CN101338097B (en) | 2008-08-15 | 2008-08-15 | Special lead of pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101338097B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459481A (en) * | 2009-04-24 | 2012-05-16 | 三菱铅笔株式会社 | Pencil lead and method for producing same |
| CN103937330A (en) * | 2014-05-16 | 2014-07-23 | 安硕文教用品（上海）股份有限公司 | High-temperature-resistant colored pencil core and preparation method thereof |
| CN103980765A (en) * | 2014-05-23 | 2014-08-13 | 龙口益友文教用品有限公司 | Multifunctional colored pencil core and preparation method thereof |
| CN104725937A (en) * | 2015-03-11 | 2015-06-24 | 南阳理工学院 | Charcoal pencil for art painting and making method of charcoal pencil |
| CN105131721A (en) * | 2015-09-17 | 2015-12-09 | 蚌埠市神龙笔业有限公司 | Pencil lead with increased hardness |
| CN105153815A (en) * | 2015-08-24 | 2015-12-16 | 蚌埠市神龙笔业有限公司 | Non-toxic scented pencil lead and preparation method thereof |
| CN105153816A (en) * | 2015-08-24 | 2015-12-16 | 蚌埠市神龙笔业有限公司 | Low-dust clean pencil lead and preparation method thereof |
| CN105176201A (en) * | 2015-09-10 | 2015-12-23 | 蚌埠市神龙笔业有限公司 | Fluorescent pencil lead |
| CN109096828A (en) * | 2018-09-29 | 2018-12-28 | 蚌埠神龙笔业有限公司 | A kind of clear writing, written cleaning pencil-lead and pencil |
| CN109385147A (en) * | 2018-11-07 | 2019-02-26 | 哈尔滨隆之道科技有限公司 | Matt pencil-lead and preparation method thereof |
-
2008
- 2008-08-15 CN CN2008100417118A patent/CN101338097B/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102459481A (en) * | 2009-04-24 | 2012-05-16 | 三菱铅笔株式会社 | Pencil lead and method for producing same |
| CN102459481B (en) * | 2009-04-24 | 2013-05-15 | 三菱铅笔株式会社 | Pencil lead and method for producing same |
| CN103937330A (en) * | 2014-05-16 | 2014-07-23 | 安硕文教用品（上海）股份有限公司 | High-temperature-resistant colored pencil core and preparation method thereof |
| CN103980765A (en) * | 2014-05-23 | 2014-08-13 | 龙口益友文教用品有限公司 | Multifunctional colored pencil core and preparation method thereof |
| CN103980765B (en) * | 2014-05-23 | 2015-11-18 | 龙口益友文教用品有限公司 | A kind of Multifunctional color pencil core and preparation method thereof |
| CN104725937A (en) * | 2015-03-11 | 2015-06-24 | 南阳理工学院 | Charcoal pencil for art painting and making method of charcoal pencil |
| CN104725937B (en) * | 2015-03-11 | 2016-03-30 | 南阳理工学院 | A kind of art painting charcoal pencil and preparation method |
| CN105153815A (en) * | 2015-08-24 | 2015-12-16 | 蚌埠市神龙笔业有限公司 | Non-toxic scented pencil lead and preparation method thereof |
| CN105153816A (en) * | 2015-08-24 | 2015-12-16 | 蚌埠市神龙笔业有限公司 | Low-dust clean pencil lead and preparation method thereof |
| CN105176201A (en) * | 2015-09-10 | 2015-12-23 | 蚌埠市神龙笔业有限公司 | Fluorescent pencil lead |
| CN105131721A (en) * | 2015-09-17 | 2015-12-09 | 蚌埠市神龙笔业有限公司 | Pencil lead with increased hardness |
| CN109096828A (en) * | 2018-09-29 | 2018-12-28 | 蚌埠神龙笔业有限公司 | A kind of clear writing, written cleaning pencil-lead and pencil |
| CN109385147A (en) * | 2018-11-07 | 2019-02-26 | 哈尔滨隆之道科技有限公司 | Matt pencil-lead and preparation method thereof |
| CN109385147B (en) * | 2018-11-07 | 2021-09-03 | 哈尔滨隆之道科技有限公司 | Matte pencil lead and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101338097B (en) | 2011-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190702 Address after: 223900 West of Kunlun Mountain Road, Sihong Economic Development Zone, Suqian City, Jiangsu Province Patentee after: China First Pencil Sihong Co., Ltd. Address before: 201206 No. 1295 Chuanqiao Road, Pudong New District, Shanghai Patentee before: Chinese No.1 Pencil Co., Ltd. |
|
| TR01 | Transfer of patent right |