CN101565537B - Degradable pencil holder, pencil and fabricating method thereof - Google Patents
Degradable pencil holder, pencil and fabricating method thereof Download PDFInfo
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- CN101565537B CN101565537B CN2008100667645A CN200810066764A CN101565537B CN 101565537 B CN101565537 B CN 101565537B CN 2008100667645 A CN2008100667645 A CN 2008100667645A CN 200810066764 A CN200810066764 A CN 200810066764A CN 101565537 B CN101565537 B CN 101565537B
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- Prior art keywords
- pencil
- degradable
- pencil holder
- starch
- holder
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- 238000000034 method Methods 0.000 title claims abstract description 19
- -1 fatty acid ester Chemical class 0.000 claims abstract description 39
- 239000008107 starch Substances 0.000 claims abstract description 26
- 235000019698 starch Nutrition 0.000 claims abstract description 26
- 229920002472 Starch Polymers 0.000 claims abstract description 25
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 60
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 40
- 235000011187 glycerol Nutrition 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 20
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 claims description 19
- 229920000903 polyhydroxyalkanoate Polymers 0.000 claims description 19
- 239000004902 Softening Agent Substances 0.000 claims description 18
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 12
- WHBMMWSBFZVSSR-UHFFFAOYSA-N 3-hydroxybutyric acid Chemical compound CC(O)CC(O)=O WHBMMWSBFZVSSR-UHFFFAOYSA-N 0.000 claims description 10
- 229920001592 potato starch Polymers 0.000 claims description 9
- 244000017020 Ipomoea batatas Species 0.000 claims description 8
- 235000002678 Ipomoea batatas Nutrition 0.000 claims description 8
- 229920001610 polycaprolactone Polymers 0.000 claims description 8
- 239000004632 polycaprolactone Substances 0.000 claims description 8
- 240000007594 Oryza sativa Species 0.000 claims description 5
- 235000007164 Oryza sativa Nutrition 0.000 claims description 5
- 235000013312 flour Nutrition 0.000 claims description 5
- 235000009566 rice Nutrition 0.000 claims description 5
- 240000003183 Manihot esculenta Species 0.000 claims description 4
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002023 wood Substances 0.000 abstract description 3
- 239000004971 Cross linker Substances 0.000 abstract 1
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000004580 weight loss Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Inks, Pencil-Leads, Or Crayons (AREA)
- Biological Depolymerization Polymers (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The invention provides a degradable pencil holder and a pencil adopting the same, wherein the pencil holder comprises the following components by the weight percent: 40-60 of polyhydroxy fatty acid ester, 30-50 of starch, 1-10 of cross linker and 1-10 of plasticizing agent. The invention also provides a fabricating method of the pencil, which comprises the steps of mixing raw materials, heating, lead penetrating and forming. The degradable pencil holder is environmental-friendly without toxicity, and can replace a wooden pencil holder so that wood consumption can be reduced; the pencil is easyto sharpen so as to reduce the lead-breaking; and the fabricating method of the pencil has simple process, convenient fabrication, low cost and no pollution.
Description
[technical field]
The present invention relates to writing implement, especially a kind of environmental friendliness, simple, with low cost, convenient and practical degradable pencil holder, pencil and the manufacture method thereof of manufacturing.
[background technology]
Pencil is mounted in the wooden penholder by the strip lead for retractable pencil and constitutes.The general employing of the penholder of pencil is wooden, when making penholder, must be through a lot of cutting actions, log is made the penholder of circular, regular hexagon or octagon etc., this process is quite loaded down with trivial details, cost of manufacture is very high, and has wasted a large amount of high-quality timber, the consumption of a large amount of forest reserves to day by day fragile ecology be very disadvantageous.
Pencil manufacturers developed the pencil that adopts the papery penholder, but the original materials of a lot of paper remains timber, so this papery penholder is equivalent to consume indirectly timber in order to reduce consumption of wood; Chinese patent application 00123248.7 discloses a kind of gypsum penholder, and the quality of gypsum is more crisp, and such pencil is cataclasm easily, also may produce break flour in the practical process, practical inconvenience.
[summary of the invention]
Technical problem to be solved by this invention provides a kind of environmental friendliness, makes simple, with low cost, convenient and practical degradable pencil holder.
For solving the problems of the technologies described above, the invention provides a kind of degradable pencil holder, the component of degradable pencil holder comprises 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and 1wt%-10wt% softening agent.
Used polyhydroxyalkanoate can be a kind of or its arbitrary combination in poly-beta-hydroxy-butanoic acid ester, poly(lactic acid) and the polycaprolactone in the component of degradable pencil holder of the present invention.
Used starch can be a kind of or its arbitrary combination in W-Gum, tapioca (flour), sweet potato starch and the Starch rice in the component of degradable pencil holder of the present invention.
Used linking agent can be a kind of or its arbitrary combination in dioctyl ester and the dibutylester in the component of degradable pencil holder of the present invention.
Used softening agent can be the mixture of glycerine and ethylene glycol in the component of degradable pencil holder of the present invention, and weight ratio is: glycerine: ethylene glycol=1: 2.
The surface of degradable pencil holder of the present invention can form the convex-concave shape, and the purpose of these convex-concave shape user's grasping for convenience forms, and also can form from the purpose that increases decorative effect or increase temperament and interest.
Can be printed with pattern or literal on the surface of degradable pencil holder of the present invention, for example decoration painting, cartoon character, trade mark or product information etc.
Can also comprise in the component of degradable pencil holder of the present invention being used to the look mother that mixes colours in right amount, can make the outward appearance visual effect of pencil more rich and varied like this.
Second technical problem to be solved by this invention provides a kind of pencil that adopts degradable pencil holder.
For solving this technical problem, the invention provides a kind of pencil, comprise penholder; Penholder is a degradable pencil holder, and the component of degradable pencil holder comprises 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and 1wt%-10wt% softening agent.
The component of the used degradable pencil holder of pencil of the present invention can comprise 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and 1wt%-10wt% softening agent; Used polyhydroxyalkanoate can be a kind of or its arbitrary combination in poly-beta-hydroxy-butanoic acid ester, poly(lactic acid) and the polycaprolactone in the degradable pencil holder component; Used starch can be a kind of or its arbitrary combination in W-Gum, sweet potato starch and the Starch rice in the degradable pencil holder component; Used linking agent can be a kind of or its arbitrary combination in dioctyl ester and the dibutylester in the degradable pencil holder component; Used softening agent can be the mixture of glycerine and ethylene glycol in the degradable pencil holder component, and weight ratio is: glycerine: ethylene glycol=1: 2; The surface of degradable pencil holder can form the convex-concave shape; Can be printed with pattern or literal on the surface of degradable pencil holder; Can also comprise in the component of degradable pencil holder and be used to the look mother that mixes colours in right amount.
The 3rd technical problem to be solved by this invention provides a kind of manufacture method that adopts the pencil of degradable pencil holder.
For solving this technical problem, the invention provides a kind of manufacture method of pencil, may further comprise the steps:
(1), with 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and the abundant mixing of 1wt%-10wt% softening agent;
(2), step (1) gained miscellany is added in the penholder machine, 140 ℃～170 ℃ heating;
(3), the lead for retractable pencil adding penholder machine with pencil makes lead for retractable pencil and step (1) gained miscellany punching moulding.
Step (3) is also carried out following steps afterwards: treat step (3) products obtained therefrom cooling back cutting, packing.
The invention has the beneficial effects as follows: degradable pencil holder of the present invention, asepsis environment-protecting can substitute the Wood pencil penholder, can reduce lumber consumption; Pencil of the present invention volume is easily cut, and reduces disconnected plumbous; Manufacture method production technique of the present invention is simple, easily manufactured, and cost is low, and is pollution-free.
[description of drawings]
Below by embodiment also in conjunction with the accompanying drawings, the present invention is described in further detail:
Fig. 1 is the schema of a kind of embodiment of manufacture method of the present invention.
[embodiment]
The main component of degradable pencil holder of the present invention is polyhydroxyalkanoate and starch; The effect of starch is the polymerization degree that is used for increasing product, can reduce cost simultaneously.
Below the prescription of each embodiment referring to table one.
Embodiment one: polyhydroxyalkanoate adopts poly-beta-hydroxy-butanoic acid ester; Starch adopts W-Gum; Linking agent adopts dioctyl ester; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment two: polyhydroxyalkanoate adopts poly(lactic acid); Starch adopts sweet potato starch; Linking agent adopts dibutylester; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment three: polyhydroxyalkanoate adopts polycaprolactone; Starch adopts tapioca (flour); Linking agent adopts the mixture of dioctyl ester and dibutylester, and weight ratio is: dioctyl ester: dibutylester=1: 1; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment four: polyhydroxyalkanoate adopts the mixture of poly-beta-hydroxy-butanoic acid ester and poly(lactic acid), and weight ratio is: poly-beta-hydroxy-butanoic acid ester: poly(lactic acid)=1: 1; Starch adopts the mixture of W-Gum and sweet potato starch, and weight ratio is: W-Gum: sweet potato starch=1: 1; Linking agent adopts the mixture of dioctyl ester and dibutylester, and weight ratio is: dioctyl ester: dibutylester=2: 1; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment five: polyhydroxyalkanoate adopts the mixture of poly-beta-hydroxy-butanoic acid ester, poly(lactic acid) and polycaprolactone, and weight ratio is: poly-beta-hydroxy-butanoic acid ester: poly(lactic acid): polycaprolactone=1: 1: 1; Starch adopts the mixture of W-Gum, sweet potato starch and Starch rice, and weight ratio is: W-Gum: sweet potato starch: Starch rice=1: 1: 1; Linking agent adopts the mixture of dioctyl ester and dibutylester, and weight ratio is: dioctyl ester: dibutylester=2: 1; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment six: polyhydroxyalkanoate adopts the mixture of poly(lactic acid) and polycaprolactone, and weight ratio is: poly(lactic acid): polycaprolactone=1: 1; Starch adopts W-Gum, and linking agent adopts dioctyl ester; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Embodiment seven: polyhydroxyalkanoate adopts the mixture of poly-beta-hydroxy-butanoic acid ester and poly(lactic acid), and weight ratio is: poly-beta-hydroxy-butanoic acid ester: poly(lactic acid)=2: 1; Starch adopts tapioca (flour); Linking agent adopts the mixture of dioctyl ester and dibutylester, and weight ratio is: dioctyl ester: dibutylester=1: 1; Softening agent adopts the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
Press the formulated raw material of the listed degradable pencil holder of table one, make pencil according to the manufacture method among Fig. 1 then.
As shown in Figure 1, the method that the present invention makes the degradable plastics penholder is: put into the penholder machine after raw material is mixed by proportioning, under 140 ℃-170 ℃ condition, heat, utilize the lead for retractable pencil machine to extrude lead for retractable pencil by prior art, lead for retractable pencil enters the punching of penholder machine and merges moulding, after put into cold water and be cooled to normal temperature.For enhancing productivity, the penholder machine can be extruded continuously, and the finished product that the penholder machine is come out cuts off by design length then; Can print required pattern at penholder; When needing, can also rubber tip be installed at pen arm end.That penholder can be done is circular, regular hexagon or octagon etc.
Table one degradable pencil holder is implemented prescription (wt%)
| Polyhydroxyalkanoate | Starch | Linking agent | Softening agent | |
| Embodiment 1 | 40 | 50 | 1 | 9 |
| Embodiment 2 | 45 | 45 | 5 | 5 |
| Embodiment 3 | 50 | 40 | 9 | 1 |
| Embodiment 4 | 55 | 35 | 3 | 7 |
| Embodiment 5 | 60 | 30 | 7 | 3 |
| Embodiment 6 | 50 | 45 | 3 | 2 |
| Embodiment 7 | 45 | 45 | 4 | 6 |
More than the finished product pencil that obtains of each embodiment, cut and volume is cut experiment with ordinary blade and pencil sharpener, it is smooth and easy that cutting and volume are cut process, and disconnected plumbous phenomenon takes place.The finished product pencil that each embodiment is obtained carries out degradation experiment, adopts soil to bury method, behind the certain hour sample is carried out the calculating of rate of weight loss.Under field conditions (factors), soil buries 30 days sample surfaces and thalline occurs, and the average rate of weight loss of sample surpasses 5%, and the average rate of weight loss that soil buries 100 days samples is that degradation effect is obvious more than 20%.
Adopt technical solution of the present invention, technology is simple, convenient and easy, abundant raw material, cheap, protection ecology, non-environmental-pollution, production process do not have " three wastes ", and the product health is nontoxic, certain intensity is arranged.Environment protection type pencil is big in China's usage quantity, is fit to factory's scale operation, and can bring economy, the ecological, environmental protective benefit of billions of units every year for country.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (11)
1. degradable pencil holder, it is characterized in that: the component of described degradable pencil holder comprises 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and 1wt%-10wt% softening agent.
2. degradable pencil holder according to claim 1 is characterized in that: described polyhydroxyalkanoate is a kind of or its arbitrary combination in poly-beta-hydroxy-butanoic acid ester, poly(lactic acid) and the polycaprolactone.
3. degradable pencil holder according to claim 1 is characterized in that: described starch is a kind of or its arbitrary combination in W-Gum, tapioca (flour), sweet potato starch and the Starch rice.
4. degradable pencil holder according to claim 1 is characterized in that: described linking agent is a kind of or its arbitrary combination in dioctyl ester and the dibutylester.
5. degradable pencil holder according to claim 1 is characterized in that: described softening agent is the mixture of glycerine and ethylene glycol, and weight ratio is: glycerine: ethylene glycol=1: 2.
6. according to claim 1,2,3,4 or 5 described degradable pencil holders, it is characterized in that: the surface of described degradable pencil holder forms the convex-concave shape.
7. according to claim 1,2,3,4 or 5 described degradable pencil holders, it is characterized in that: the surface of described degradable pencil holder is printed with pattern or literal.
8. according to claim 1,2,3,4 or 5 described degradable pencil holders, it is characterized in that: also comprise in the component of described degradable pencil holder being used to the look mother that mixes colours in right amount.
9. a pencil comprises penholder; It is characterized in that: described penholder is a degradable pencil holder, and the component of described degradable pencil holder comprises 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and 1wt%-10wt% softening agent.
10. the manufacture method of the described pencil of claim 9 is characterized in that: may further comprise the steps:
(1), with 40wt%-60wt% polyhydroxyalkanoate, 30wt%-50wt% starch, 1wt%-10wt% linking agent and the abundant mixing of 1wt%-10wt% softening agent;
(2), step (1) gained miscellany is added in the penholder machine, 140 ℃～170 ℃ heating;
(3), the lead for retractable pencil adding penholder machine with pencil makes lead for retractable pencil and step (1) gained miscellany punching moulding.
11. manufacture method according to claim 10 is characterized in that: step (3) is also carried out following steps afterwards: treat step (3) products obtained therefrom cooling back cutting, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100667645A CN101565537B (en) | 2008-04-23 | 2008-04-23 | Degradable pencil holder, pencil and fabricating method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100667645A CN101565537B (en) | 2008-04-23 | 2008-04-23 | Degradable pencil holder, pencil and fabricating method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101565537A CN101565537A (en) | 2009-10-28 |
| CN101565537B true CN101565537B (en) | 2011-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100667645A Active CN101565537B (en) | 2008-04-23 | 2008-04-23 | Degradable pencil holder, pencil and fabricating method thereof |
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| CN (1) | CN101565537B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002586B (en) * | 2014-05-22 | 2016-01-27 | 福建农林大学 | A kind of pencil slat and preparation method thereof |
| CN105128560A (en) * | 2015-08-27 | 2015-12-09 | 蚌埠市神龙笔业有限公司 | Sterilizing pencil with function of sawdust recycling |
| CN106633923A (en) * | 2016-11-28 | 2017-05-10 | 天津志学科技有限公司 | Degradable medical composite novel material and preparation method thereof |
| CN109017022B (en) * | 2018-08-12 | 2019-12-24 | 蒙城县金元达制笔有限公司 | Pencil lead mounting device |
| BR112021009470B1 (en) * | 2018-12-18 | 2023-10-03 | Societe Bic | CORE CASING FOR PENCILS, AND PENCILS THEREOF FOR WRITING, DRAWING, MARKING, TRACING AND COLORING |
| CN112457640A (en) * | 2020-11-30 | 2021-03-09 | 安徽理工大学 | Degradable plastic pencil holder and preparation method thereof |
| DE102022119775A1 (en) | 2022-08-05 | 2024-02-08 | Staedtler Mars Gmbh & Co. Kg | Pen lead with polyhydroxybutyric acid as a binder and pen with the pen lead |
Citations (3)
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|---|---|---|---|---|
| CN1563161A (en) * | 2004-03-22 | 2005-01-12 | 清华大学 | Decomposable plastics containing starch and preparaton method |
| CN1785641A (en) * | 2005-12-15 | 2006-06-14 | 闫万琪 | Production technology of comixed biodegradable material |
| CN1948372A (en) * | 2005-10-13 | 2007-04-18 | 周瑞 | Raw material components for producing related product using starch etc, .as raw material |
-
2008
- 2008-04-23 CN CN2008100667645A patent/CN101565537B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563161A (en) * | 2004-03-22 | 2005-01-12 | 清华大学 | Decomposable plastics containing starch and preparaton method |
| CN1948372A (en) * | 2005-10-13 | 2007-04-18 | 周瑞 | Raw material components for producing related product using starch etc, .as raw material |
| CN1785641A (en) * | 2005-12-15 | 2006-06-14 | 闫万琪 | Production technology of comixed biodegradable material |
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Application publication date: 20091028 Assignee: Shenzhen Chuangda Technology Co.,Ltd. Assignor: SHENZHEN MOPTIM IMAGING TECHNIQUE Co.,Ltd. Contract record no.: 2012440020399 Denomination of invention: Degradable pencil holder, pencil and fabricating method thereof Granted publication date: 20110330 License type: Exclusive License Record date: 20121219 |
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Address after: Room L302, Building 2, Skyworth Innovation Valley, No. 8 Tangtou 1st Road, Tangtou Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province, 518108 Patentee after: Shenzhen Moting Medical Technology Co.,Ltd. Address before: 518000 803, block B, Jingang center, Jingang building, houye community, Xixiang street, Bao'an District, Shenzhen, Guangdong Patentee before: Shenzhen moting Medical Technology Co.,Ltd. |
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