CN1335230A - Soft pencil and its manufacture - Google Patents
Soft pencil and its manufacture Download PDFInfo
- Publication number
- CN1335230A CN1335230A CN 01127186 CN01127186A CN1335230A CN 1335230 A CN1335230 A CN 1335230A CN 01127186 CN01127186 CN 01127186 CN 01127186 A CN01127186 A CN 01127186A CN 1335230 A CN1335230 A CN 1335230A
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- China
- Prior art keywords
- lead
- pencil
- retractable pencil
- machine
- penholder
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Abstract
The soft pencil includes pencil shaft of flexible PVC and soft pencil lead of PVC and graphite powder. The pencil is manufactured through heating, melting, mixing and extruding the pencil head material, including graphite powder, PVC, calcium stearate, stearic acid and chlorinated polyethylene; heating the pencil shaft material, including PVC and supplementary material; extruding the pencil lead into the pencil shaft; and cutting in certain length. The soft pencil has both flexible shaft and lead without breakdown, and its lead is wear resistant and good in coloring performance.
Description
The present invention relates to a kind of pencil, relate to the method that pencil is made simultaneously.
General pencil adopts wooden, and its material consumption timber is big, is unfavorable for environmental protection.Be easy to fracture during the lead for retractable pencil of Wood pencil uses, and pencil is subject to processing performance limitations, the less variation of outward appearance.Wood pencil processing and manufacturing process is complicated, pollutes greatly, and the cost height, the quality control difficulty, lead for retractable pencil is toxic.In order to overcome the shortcoming of Wood pencil, the plastics Soft pencil has been arranged now, but the batching of its penholder and lead for retractable pencil is also unreasonable, toughness is relatively poor, and lead for retractable pencil is disconnected easily, and not wear-resisting, degree of staining is relatively poor.The method of producing the plastics Soft pencil now is also unreasonable, and production efficiency is low, the quality instability of product.
The objective of the invention is to design a kind of good toughness, easy fracture not, lead for retractable pencil is wear-resisting, the soft pencil that coloring is strong.
Another object of the present invention provides the manufacture method that a kind of energy greater efficiency is produced soft pencil.
Soft pencil of the present invention comprises penholder and lead for retractable pencil, and penholder adopts tough matter igelite, and lead for retractable pencil adopts the soft lead for retractable pencil that mainly contains graphite powder and polyvinyl chloride.
Use soft pencil of the present invention, penholder and pen core toughness are very good, and fracture can not appear in bending yet, and the lead for retractable pencil wearability is good, and coloring is very strong, and the penholder moulding can morely change, and is more attractive in appearance.
In order to make the lead for retractable pencil performance better, lead for retractable pencil can contain following component by weight proportion: graphite powder 166 polyvinyl chloride 100 stearic acid tungsten 15 stearic acid 6 haloflexes 3.
In order further to improve the anti-breaking fragility of lead for retractable pencil and to make things convenient for soft pencil processing, between penholder and lead for retractable pencil, can be provided with and protect core, protect core and adopt the polyvinyl chloride flexible plastic.
The method that the present invention is used to make soft pencil is the raw material of lead for retractable pencil (2) to be mixed by proportioning put into the lead for retractable pencil machine and heat and extrude after molten, simultaneously the raw material of penholder (1) being put into the penholder machine heats, the lead for retractable pencil that the lead for retractable pencil machine is extruded (2) enters penholder machine punching moulding, the finished product that the penholder machine is come out gets final product by the length cut-out, and wherein the raw material of lead for retractable pencil (2) comprises by weight ratio: graphite powder 166 polyvinyl chloride 100 calcium stearate 15-17 stearic acid 6.6 haloflexes 3.3;
It is 130-150 ℃ that each raw material mixes the heat temperature of back in the lead for retractable pencil machine;
The raw material of penholder is polyvinyl chloride and assistant, is 130-140 ℃ in the penholder machine temperature of heating.
Method of the present invention efficient when producing is very high, greatly reduces cost, has improved quality.
Because the lead for retractable pencil raw material time might not once fuse fully in the fusion of heating, suitable for making lead for retractable pencil light, soft or hard, generally can fuse 5 times.In this process, material component has partial loss, and wherein the calcium stearate loss is more obvious, so will suitably put into a bit according to the fusion number of times of heating more.
The lead for retractable pencil color also can be put into a certain amount of industrial pigment and make colored refined lead core in the lead for retractable pencil raw material except black, general pigment and polyvinyl chloride weight ratio are 15: 100.
Protect core on establishing in needing soft pencil, can enter at the lead for retractable pencil that the lead for retractable pencil machine is extruded to wrap through bag core machine earlier before the penholder machine and protect core, put into the material pvc and the assistant that protect core in advance in the bag core machine and heat, temperature is 130-140 ℃.
Further specify the present invention below in conjunction with drawings and Examples.
Fig. 1 is the main cutaway view of soft pencil;
Fig. 2 is the vertical view of Fig. 1.
Embodiment 1: the raw material of lead for retractable pencil 2 pressed column weight quantizes to mix,
Graphite powder 166 polyvinyl chloride (PVC material) 100 calcium stearates 16.5
Stearic acid 6.6 haloflexes 3.3 compounds are put into the lead for retractable pencil machine and are fused, temperature is looked slightly difference of raw material condition, can be 130 ℃, 135 ℃, 140 ℃, mostly be 150 ℃, the fusion number of times is 1-5 time, present embodiment is got 5 times, in the fusion of calcium stearate in the raw material loss more obvious, its amount is different and adjust by the fusion number of times.The raw material of penholder 1 is polyvinyl chloride (PVC material) and a small amount of assistant, for example epoxidized soybean oil and organotin.The raw material of penholder 1 is put into the penholder machine be warmed to 130-140 ℃, the lead for retractable pencil machine is extruded lead for retractable pencil 2 and is entered penholder machine punching moulding, and the finished product that the penholder machine is gone out gets final product by the length cut-out.
The penholder of gained soft pencil is tough matter igelite, and lead for retractable pencil 2 is for containing the soft lead for retractable pencil of following weight ratio component:
Graphite powder 166 polyvinyl chloride 100 stearic acid tungsten 15
Stearic acid 6 haloflexes 3.
Embodiment 2: condition is with embodiment 1, the lead for retractable pencil 2 that the lead for retractable pencil machine is extruded enters preceding the wrapping through bag core machine earlier of penholder machine and protects core 3, put into the raw material that expands core 3 in advance in the bag core machine and be heated to 130-140 ℃, raw material is polyvinyl chloride (PVC material) and assistant, as o-phthalic acid dibutyl ester.
What the gained soft pencil also had the polyvinyl chloride flexible plastic between penholder 1 and lead for retractable pencil 3 protects core 3.
Embodiment 3: condition also has industrial pigment with embodiment 1 or 2 in the raw material of lead for retractable pencil 2, and as Lithol Red, polyvinyl chloride (PVC material) weight ratio was generally 15: 100 in itself and the raw material.
The lead for retractable pencil 2 of gained soft pencil has the color that is different from common black.
Claims (7)
1, a kind of soft pencil comprises penholder and lead for retractable pencil, it is characterized by: penholder (1) adopts tough matter igelite, and lead for retractable pencil (2) adopts the soft lead for retractable pencil that mainly contains graphite powder and polyvinyl chloride.
2, soft pencil according to claim 1 is characterized by: lead for retractable pencil (2) comprises following component by weight proportion,
Graphite powder 166 polyvinyl chloride 100 calcium stearates 15
Stearic acid 6 haloflexes 3.
3, soft pencil according to claim 1 and 2 is characterized by: be provided with between penholder (1) and the lead for retractable pencil (2) and protect core (3), protect core (3) and adopt the polyvinyl chloride flexible plastic.
4, a kind of method of making the described soft pencil of claim 1, the raw material of lead for retractable pencil (2) mixed by proportioning put into the lead for retractable pencil machine and heat and extrude after molten, simultaneously the raw material of penholder (1) being put into the penholder machine heats, the lead for retractable pencil that the lead for retractable pencil machine is extruded (2) enters penholder machine punching moulding, the finished product that the penholder machine is come out gets final product by the length cut-out, it is characterized by:
The raw material of lead for retractable pencil (2) comprises by weight ratio: graphite powder 166 polyvinyl chloride 100 calcium stearate 15-17 stearic acid 6.6 haloflexes 3.3;
It is 130-150 ℃ that each raw material mixes the heat temperature of back in the lead for retractable pencil machine;
The raw material of penholder (1) is polyvinyl chloride and assistant, is 130-140 ℃ in the penholder machine temperature of heating.
5, method according to claim 4 is characterized by: also have industrial pigment in the raw material of lead for retractable pencil (2), the weight ratio of polyvinyl chloride is 15: 100 in itself and the raw material.
6, method according to claim 4, it is characterized by: the lead for retractable pencil that the lead for retractable pencil machine is extruded (2) enters preceding the wrapping through bag core machine earlier of penholder machine and protects core (3), put into the material pvc and the assistant that protect core (3) in advance in the bag core machine and heat, temperature is 130-140 ℃.
7, method according to claim 4 is characterized by: the raw material of lead for retractable pencil (2) is heated in the lead for retractable pencil machine and fused number of times is 1-5 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127186 CN1335230A (en) | 2001-09-08 | 2001-09-08 | Soft pencil and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01127186 CN1335230A (en) | 2001-09-08 | 2001-09-08 | Soft pencil and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1335230A true CN1335230A (en) | 2002-02-13 |
Family
ID=4667172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01127186 Pending CN1335230A (en) | 2001-09-08 | 2001-09-08 | Soft pencil and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1335230A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1810520B (en) * | 2005-01-26 | 2011-04-06 | J.S.斯达德勒两合公司 | Pencil lead for writing, drawing and painting instruments |
| CN103029490A (en) * | 2012-11-13 | 2013-04-10 | 常州大学 | Preparing method of environment-friendly pencil |
| CN104442094A (en) * | 2014-11-26 | 2015-03-25 | 武汉光禾笔业有限公司 | Coated pencil |
| CN104476946A (en) * | 2014-11-26 | 2015-04-01 | 武汉光禾笔业有限公司 | Method for producing coated pencil |
| 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 |
| CN106956536A (en) * | 2014-02-26 | 2017-07-18 | 闫化存 | Powder bed, novel pencil and its application method applied to novel pencil |
| US11453600B2 (en) | 2018-06-16 | 2022-09-27 | Indian Oil Corporation Limited | Method of making hydrocarbon soluble metal compositions |
-
2001
- 2001-09-08 CN CN 01127186 patent/CN1335230A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1810520B (en) * | 2005-01-26 | 2011-04-06 | J.S.斯达德勒两合公司 | Pencil lead for writing, drawing and painting instruments |
| CN103029490A (en) * | 2012-11-13 | 2013-04-10 | 常州大学 | Preparing method of environment-friendly pencil |
| CN106956536A (en) * | 2014-02-26 | 2017-07-18 | 闫化存 | Powder bed, novel pencil and its application method applied to novel pencil |
| CN106956536B (en) * | 2014-02-26 | 2018-11-13 | 江苏宁江文化科技有限公司 | Powder bed, novel pencil and its application method applied to novel pencil |
| CN104442094A (en) * | 2014-11-26 | 2015-03-25 | 武汉光禾笔业有限公司 | Coated pencil |
| CN104476946A (en) * | 2014-11-26 | 2015-04-01 | 武汉光禾笔业有限公司 | Method for producing coated pencil |
| 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 |
| US11453600B2 (en) | 2018-06-16 | 2022-09-27 | Indian Oil Corporation Limited | Method of making hydrocarbon soluble metal compositions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |