CN101684220A - Ingredients of color pencil lead - Google Patents
Ingredients of color pencil lead Download PDFInfo
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- CN101684220A CN101684220A CN200910164880A CN200910164880A CN101684220A CN 101684220 A CN101684220 A CN 101684220A CN 200910164880 A CN200910164880 A CN 200910164880A CN 200910164880 A CN200910164880 A CN 200910164880A CN 101684220 A CN101684220 A CN 101684220A
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- pencil lead
- color pencil
- batching
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- clay
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Abstract
The invention relates to a color pencil, in particular to ingredients of a color pencil lead. The aim of the invention is to provide the ingredients of a color pencil lead, which ensures the stable quality of the color pencil lead and the low rate of lead breakage during sharpening. The ingredients of the color pencil lead comprise the following components in part by weight: clay 95-105, soap stone powder 12-20, pigment powder 13-20, wax 10-15, grease 28-32, adhesive 13-16 and water 10-14; the ingredients can further comprise one part of surfactant. The color pencil lead made by the ingredients has the advantages of fresh and vivid color, stable quality, low rate of breakage during sharpening, and suitability for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of colored pencil, particularly a kind of batching of color pencil lead.
Background technology
Color pencil lead is with a kind of pencil-lead of colorant as tinting material.Color pencil lead mainly is to be binding agent with the clay, adds colorant, physique raw material (as talcum powder), water, tackiness agent, grease and wax etc. behind mixed grinding, and extrusion molding is commonly called " clay look core ".
The pencil manufacturing industry of China is started late, but rely on low relatively labor cost, domestic pencil production develops rapidly and the pencil product enters US and European market in a large number, the low-and-medium-grade products of system big countries such as the U.S., Europe and Japan has been formed substitute and threaten.At present, be centered around pencil manufacturing that low-grade, the extensive stage paces up and down for a long time and fettered, influenced the development of China's pencil manufacturing industry to a great extent, and high sharpening collapses problems such as core-breaking rate, quality stability difference and is perplexing each big system business men always in the existing color pencil lead production.
Thereupon, constantly having enterprise to throw huge fund on the domestic market improves, upgrades colored pencil manufacturing prior art.Patent " a kind of batching and using method thereof that is used to make pastel or pen core ", application number: 01135196.9, low with regard to poor stability, intensity in the colored pen core manufacturing processed, use problem such as color and luster deviation to improve from formula adjustment, original be under the prerequisite of basic components with pigment, wax, introduced starting material such as clay, ionic crystal pigment; Patent " a kind of pen of easy-to-sharpen and breaking-proof lead ", publication number: CN1165751A, intending improving the pencil planing from the adjustment of structure is characteristics such as easily broken core, and has proposed to have brought thus environment-friendly function such as saving timber; Patent " a kind of color pencil lead ", application number: 200410023759.8, the prescription that a kind of color pencil lead is provided is to improve the row yielding of lead for retractable pencil, it is in traditional production formula, introduced the EVA hot melt adhesive and substituted the peach gum of part as formed substance, increase lead for retractable pencil intensity to a certain extent, but simultaneously because self physical property the subject of knowledge and the object of knowledge limit of EVA hot melt adhesive, cause lead for retractable pencil fragility to be strengthened, its raising to lead for retractable pencil production row yielding is limited, and the drawing of its finished product color pencil lead is painted and handle effect all can be subjected to reducing in various degree, has influenced the use properties of pencil; Patent " resin composite material pencil ", application number: 200510047091.5, start with from structure and material, a kind of not only machinable is provided but anti-ly fall, the macromolecular material pencil of anti-folding, solved easy core shift of plastic pencil (yield rate is low) that expressing technique produces and feel, writing effect not as problems such as wooden pencils.
Author of the present invention is engaged in the exploitation of color pencil lead prescription the midium or long term in enterprise of living in, work such as toning and operation instruction, carry out on a large scale in the Lean Six Sigma high-quality production management practice in enterprise, in conjunction with domestic and international state-of-the-art technology standard, sense of urgency is subjected to the high sharpening of prior art color pencil lead product and collapses the significant cost loss and the wasting of resources that core-breaking rate brings to enterprise, as starting point, in the exploitation of team unity for many years at the principal element of the color core product stability of influence, crucial starting material etc. are made the novelty adjustment, follow the tracks of through continual production in enormous quantities practice contrast and to the big area of domestic and international client user's service condition, formed brand-new color pencil lead formula technique scheme.
The production stability that author of the present invention bases oneself upon the prior art color pencil lead improves, do not influencing existing color pencil lead manufacturing process and finished product effect, improve writing under feel, intensity, hardness and the prerequisite such as bright in luster of existing color pencil lead simultaneously, it is low that essence solution sharpening collapses core-breaking rate, problems such as steady quality.
Summary of the invention
The purpose of this invention is to provide a kind of color pencil lead steady quality, fine away and collapse the color pencil lead batching that core-breaking rate reduces.
Technical scheme of the present invention is achieved in that a kind of batching of color pencil lead, calculates by weight, mainly comprises following component:
Clay 95-105 part, talcum powder 12-20 part, pigment powder 13-20 part, wax 10-15 part, grease 28-32 part, tackiness agent 13-16 part, water 10-40 part.
Further, also comprise 1 part of tensio-active agent in the said components.
Preferably, described clay adopts surface treatment agent through surface treatment, and the Mohs' hardness of clay is not more than 2, and by 325 mesh sieves; The described surface treatment agent that is used for handling clay is stearic acid or silane or resin.
Preferably, the average oil number of described pigment powder is less than 50%.
Preferably, described greasy acid number is less than 2, and melting range is 50～60 ℃.
Preferably, described tackiness agent is a Vltra tears.
Preferably, described tensio-active agent is a polyoxyethylene glycol.
Preferably, the parts by weight of described water are 13-20.
The present invention is owing to adopted above-mentioned technical scheme, make it compared with prior art, have following advantage and positively effect: use the present invention's system of preparing burden color pencil lead bright in luster true to nature, steady quality, it is low that sharpening collapses core-breaking rate, is suitable for large-scale commercial production.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is traditional grinding process flow figure, and the concrete operations flow process can be referring to " pencil production technique " book.
Embodiment
The present invention is a kind of batching of color pencil lead, calculates by weight, mainly comprises following component:
Clay 95-105 part, talcum powder 12-20 part, pigment powder 13-20 part, wax 10-15 part, grease 28-32 part, tackiness agent 13-16 part, water 10-40 part.
Further, also comprise 1 part of tensio-active agent in the said components.
Wherein, the pigment powder can be Fast Yellow G, pink color lake, titanium dioxide, one or more in orange G, 3132 reds admittedly forever.
Using the present invention's method for preparing color pencil lead of preparing burden may further comprise the steps, a, is that the wax, 28-32 grease, the tackiness agent of 13-16, the water of 10-40 of pigment powder, the 10-15 of talcum powder, the 13-20 of clay, the 12-20 of 95-105 is prepared burden with parts by weight; B, in homogenizer or low-speed mixer, mix then; C, under 45-100 ℃, in forcing machine, plastify, disperse extruding pelletization to obtain the color pencil lead material through twin screw extruder; D, obtain colored pen core through squeezing core equipment then; E, pass through core drying again, the core drying temperature is 55 to 65 ℃, 36 to 72 hours time, becomes colored pen core finished product.Adopt in the enforcement, load weighted solid materials is added low-speed mixer stirred 10 to 30 minutes, add all liquid material then uniformly, continue to mix 20 to 30 minutes.The material that mixes is with automatic feeding device or manually be transferred in the feeding funnel of twin screw, and the pellet that carries out twin screw production is placed to change over to after 12 to 36 hours and squeezed the core operation, and crowded core equipment is a hydropress.Change the core drying operation over to after squeezing core, the core drying temperature is 55 to 65 ℃, 36 to 72 hours time.Test the flexural strength of color core and make the core point of pencil stressed with the stressed instrument of core point, the sharpening of pencil collapses core-breaking rate and writes down in pencil sharpening operation and obtain.
Using the prepare burden another kind of method of preparation color pencil lead of the present invention may further comprise the steps, a, is that the clay of 95-105, the talcum powder of 12-20, the pigment powder of 13-20, the wax of 10-15 are prepared burden with the parts by weight of solid ingredient; B, in homogenizer or low-speed mixer, mixed 10 to 30 minutes then; C, the parts by weight that add liquid dispensing again are that the grease of 28-32, the tackiness agent of 13-16, the water of 10-40,1 tensio-active agent continue to mix 20 to 30 minutes in homogenizer or low-speed mixer; D, obtain the color pencil lead material through twin screw extruder extruding pelletization after in forcing machine, plastifying, disperse under 45-100 ℃; E, twin screw extruder is extruded color pencil lead material pellet place and to change crowded core equipment over to after 12 to 36 hours, crowded core equipment is a hydropress, extrudes color pencil lead through squeezing core equipment, and squeezing core pressure is 30～60Mpa; F, pass through core drying again, 55 to 65 ℃ of 36 to 72 hours times of core drying temperature, become colored pen core finished product.
Wherein the twin screw extruder in the processing step comprises co-rotating twin screw extruder, Heterodromy double-screw extruder and conical double screw extruder; The wearing and tearing of twin screw extruder are considered that the clay in a step adopts surface treatment agent through surface treatment (how carrying out surface treatment is prior art) from reducing, the Mohs' hardness of clay is not more than 2, and by 325 mesh sieves; In order to obtain comparatively ideal steady quality effect, the average oil number of the pigment powder in a step is less than 50%; Greasy acid number is less than 2 in the corresponding steps, and melting range is 50～60 ℃; Tackiness agent is a Vltra tears; The parts by weight of water are 13-20; The surface treatment agent that is used for handling clay is stearic acid or silane or resin, connect the color pencil lead material core that screw extrusion press is extruded by hydropress or threshing machine in the corresponding steps, through compacting or knocking color pencil lead material, hydraulic pressure 30～60Mpa, thump at least 100 times, core drying makes color core then becomes colored pen core finished product, and the hydropress of use is 100 tons, and hydraulic pressure satisfactory for result is 60Mpa.
Provide embodiment below, and make corresponding explanation.
Embodiment 1: production capacity (prescription is parts by weight)
| Numbering | Clay (not surface treatment) | Talcum powder | Stearic acid | Wax | Water | Tackiness agent | Tensio-active agent | Fast Yellow G | |
| Twin screw technology | ??#1 | ??100 | ??15 | ??28 | ??10 | ??29 | ??14 | ??1 | ??16 |
| Three-roller technology | ??#2 | ??100 | ??15 | ??28 | ??10 | ??70 | ??14 | ??1 | ??16 |
200 kilograms of the every batch of charging capacitys feed intake 10 batches altogether, estimation production efficiency.
Estimate: embodiment shows, intactly uses original prescription can cause the wearing and tearing of twin screw equipment, reduces its use value.
Embodiment 2: reduce machine loss (prescription is parts by weight)
| Numbering | Clay (surface treatment) | Talcum powder | Winterized stearin | Wax | Water | Tackiness agent | Tensio-active agent | Fast Yellow G | |
| Twin screw technology | ??#1 | ??100 | ??15 | ??28 | ??10 | ??29 | ??14 | ??1 | ??16 |
The surface-treated clay can reduce the wearing and tearing of material to the twin screw machine barrel; The very for a short time corrodibility of material that makes of the acid number of winterized stearin reduces, and reduces the corrosion of material to machine barrel.The mean lifetime of barrel was brought up to more than 18 months by 4 months.
Embodiment 3: color core performance is (prescription is parts by weight) relatively
| Numbering | Clay | Talcum powder | Winterized stearin | Wax | Water | Tackiness agent | Tensio-active agent | Pink color lake | Titanium dioxide | |
| Twin screw technology | ??#1 | ??100 | ??15 | ??32 | ??13 | ??30 | ??15 | ??1 | ??5 | ??10 |
| Three-roller technology | ??#2 | ??100 | ??15 | ??28 | ??10 | ??30 | ??15 | ??1 | ??5 | ??10 |
Estimate: should suitably improve the ratio of grease and wax, thereby guarantee lead for retractable pencil and the performance that makes pencil.The per-cent of selected component wax and grease sum is higher by 1.5～2% than three-roller technology.
Embodiment 4 (prescription is parts by weight)
| Numbering | Clay | Talcum powder | Winterized stearin | Wax | Water | Tackiness agent | Tensio-active agent | Consolidate orange G forever | 3132 reds |
| ??1 | ??100 | ??12 | ??31 | ??14 | ??25 | ??15 | ??1 | ??1 | ??12 |
| ??2 | ??100 | ??12 | ??31 | ??14 | ??30 | ??15 | ??1 | ??1 | ??12 |
| ??3 | ??100 | ??12 | ??31 | ??14 | ??35 | ??15 | ??1 | ??1 | ??12 |
| ??4 | ??100 | ??12 | ??31 | ??14 | ??40 | ??15 | ??1 | ??1 | ??12 |
Estimate: the ratio of adjusting suitable water also is the key that guarantees lead for retractable pencil and make the pencil quality.
Embodiment 5: stable comparison test
| Numbering | Clay | Talcum powder | Winterized stearin | Wax | Water | Tackiness agent | Tensio-active agent | Consolidate orange G forever | 3132 reds |
| ??1 | ??100 | ??20 | ??30 | ??12 | ??30 | ??16 | ??1 | ??/ | ??20 |
| ??2 | ??95 | ??12 | ??31 | ??15 | ??10 | ??13 | ??1 | ??/ | ??16 |
| ??3 | ??105 | ??12 | ??31 | ??15 | ??10 | ??13 | ??1 | ??/ | ??16 |
Feed intake 10 batches, 200 kilograms every batch.Get 20 test flexural strengths at random, calculate every batch average intensity for every batch; Remaining color core system pen is all fined away, and writes down the per-cent of the core that breaks.Calculate 10 batches flexural strength and the standard deviation that collapses core-breaking rate then.Estimate: can influence sharpening through the clay of special processing and the tensio-active agent that is fit to and collapse core-breaking rate and standard deviation thereof.
Claims (9)
1. the batching of a color pencil lead is characterized in that, mainly comprises following component (calculating by weight):
Clay 95-105 part, talcum powder 12-20 part, pigment powder 13-20 part, wax 10-15 part, grease 28-32 part, tackiness agent 13-16 part, water 10-40 part.
2. the batching of color pencil lead as claimed in claim 1 is characterized in that, calculates by weight, also comprises 1 part of tensio-active agent in the component.
3. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, described clay adopts surface treatment agent through surface treatment, and the Mohs' hardness of clay is not more than 2, and by 325 mesh sieves.
4. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, the average oil number of described pigment powder is less than 50%.
5. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, described greasy acid number is less than 2, and melting range is 50～60 ℃.
6. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, described tackiness agent is a Vltra tears.
7. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, described tensio-active agent is a polyoxyethylene glycol.
8. the batching of color pencil lead as claimed in claim 1 or 2 is characterized in that, the parts by weight of described water are 13-20.
9. the batching of color pencil lead as claimed in claim 3 is characterized in that, the described surface treatment agent that is used for handling clay is stearic acid or silane or resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910164880A CN101684220A (en) | 2007-10-15 | 2007-10-15 | Ingredients of color pencil lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910164880A CN101684220A (en) | 2007-10-15 | 2007-10-15 | Ingredients of color pencil lead |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100470454A Division CN101412867B (en) | 2007-10-15 | 2007-10-15 | Preparation of lead for color pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101684220A true CN101684220A (en) | 2010-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910164880A Pending CN101684220A (en) | 2007-10-15 | 2007-10-15 | Ingredients of color pencil lead |
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| CN (1) | CN101684220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252929A (en) * | 2015-09-12 | 2016-01-20 | 颍上县满天星文具用品有限公司 | Environment-friendly pencil |
| CN109651894A (en) * | 2018-12-27 | 2019-04-19 | 哈尔滨隆之道科技有限公司 | Water-soluble colored pencil lead and preparation method thereof |
| CN110003721A (en) * | 2019-04-03 | 2019-07-12 | 安硕文教用品（上海）股份有限公司 | It is a kind of to write smooth color pencil lead and preparation method thereof |
-
2007
- 2007-10-15 CN CN200910164880A patent/CN101684220A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252929A (en) * | 2015-09-12 | 2016-01-20 | 颍上县满天星文具用品有限公司 | Environment-friendly pencil |
| CN109651894A (en) * | 2018-12-27 | 2019-04-19 | 哈尔滨隆之道科技有限公司 | Water-soluble colored pencil lead and preparation method thereof |
| CN110003721A (en) * | 2019-04-03 | 2019-07-12 | 安硕文教用品（上海）股份有限公司 | It is a kind of to write smooth color pencil lead and preparation method thereof |
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Application publication date: 20100331 |