JPS61175093A - シヤ−プペンシル用芯の製造方法 - Google Patents
シヤ−プペンシル用芯の製造方法Info
- Publication number
- JPS61175093A JPS61175093A JP1559885A JP1559885A JPS61175093A JP S61175093 A JPS61175093 A JP S61175093A JP 1559885 A JP1559885 A JP 1559885A JP 1559885 A JP1559885 A JP 1559885A JP S61175093 A JPS61175093 A JP S61175093A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- stage nozzle
- extrusion molding
- molding material
- manufacture
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000001125 extrusion Methods 0.000 claims description 13
- 239000012778 molding material Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 5
- 239000001993 wax Substances 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 239000006229 carbon black Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1559885A JPS61175093A (ja) | 1985-01-31 | 1985-01-31 | シヤ−プペンシル用芯の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1559885A JPS61175093A (ja) | 1985-01-31 | 1985-01-31 | シヤ−プペンシル用芯の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61175093A true JPS61175093A (ja) | 1986-08-06 |
| JPS6236880B2 JPS6236880B2 (enrdf_load_stackoverflow) | 1987-08-10 |
Family
ID=11893153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1559885A Granted JPS61175093A (ja) | 1985-01-31 | 1985-01-31 | シヤ−プペンシル用芯の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61175093A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009029906A (ja) * | 2007-07-26 | 2009-02-12 | Mitsubishi Pencil Co Ltd | 固形描画材 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0225381U (enrdf_load_stackoverflow) * | 1988-08-08 | 1990-02-20 |
-
1985
- 1985-01-31 JP JP1559885A patent/JPS61175093A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009029906A (ja) * | 2007-07-26 | 2009-02-12 | Mitsubishi Pencil Co Ltd | 固形描画材 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6236880B2 (enrdf_load_stackoverflow) | 1987-08-10 |
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