CN107163688A - A kind of preparation method of erasable color pencil lead and products thereof - Google Patents
A kind of preparation method of erasable color pencil lead and products thereof Download PDFInfo
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- CN107163688A CN107163688A CN201710454263.3A CN201710454263A CN107163688A CN 107163688 A CN107163688 A CN 107163688A CN 201710454263 A CN201710454263 A CN 201710454263A CN 107163688 A CN107163688 A CN 107163688A
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- pencil lead
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- color pencil
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a kind of preparation method of erasable color pencil lead and products thereof.Methods described includes：Each raw material after weighing is mixed in homogenizer or low-speed mixer；Ground through three-roll grinder, obtain finely dispersed color pencil lead material；Material obtains color pencil lead by squeezing core equipment after grinding；Pass through core drying again, core drying temperature is 45 to 65 DEG C, 36 to 72 hours time；Lead for retractable pencil after drying is put into oil immersion 13 hours in 100 120 DEG C of greases, surface de-oiling is carried out, that is, obtains described erasable color pencil lead.The method that the present invention uses immersion oil fat after drying, compare the mode that wax, grease are mixed into material in advance and is molded, dries, product density is high, flexural strength is high, core point stress improves more than 1.5 times, and grease is more evenly distributed in color core, it can reach that coloring is fine and smooth, uniform, beautiful in colour, with common 4B or 6B rubbers and erasable effect.
Description
Technical field
The present invention relates to a kind of preparation method of color pencil lead, more particularly to a kind of preparation method of erasable color pencil lead.
The invention belongs to cultural goods technical field.
Background technology
Currently used for the main method for preparing color pencil lead be by pigment powder, adhesive, constitution raw material (such as talcum powder),
Water, grease and wax etc. carry out extrusion forming, drying, finally give color pencil lead after mixing.The shortcoming of this method is institute
The lead for retractable pencil product density prepared is low, and flexural strength is low, therefore frangibility, is difficult colouring.
In view of the above-mentioned problems, the present invention proposes a kind of new method for preparing color pencil lead, it is in prior art
On the basis of, by changing the feed postition of grease, so as to prepare a kind of new colored pen core, the pen core has density
The advantage that high, flexural strength is high, coloring is fine and smooth, uniform, beautiful in colour, while also having erasable effect.
The content of the invention
The technical problems to be solved by the invention are that there is provided one kind the problems such as overcoming existing pen core frangibility, be difficult colouring
The new preparation method for being used to prepare erasable color pencil lead.
In order to achieve the above object, present invention employs following technological means：
A kind of preparation method of erasable color pencil lead of the present invention, it comprises the following steps：
A, according to following parts by weight weigh each raw material：Pigment powder 10-12 parts by weight, adhesive 10-12 parts by weight, titanium dioxide
10-12 parts by weight, talcum powder 62-70 parts by weight and water 30-50 parts by weight；
B, will weigh after each raw material mixed in homogenizer or low-speed mixer；
C, mixed material are ground through three-roll grinder, obtain finely dispersed color pencil lead material；
D, by step c grind after color pencil lead material through squeezing core equipment obtain color pencil lead；
E, again process core drying are handled, and core drying temperature is 45 to 65 DEG C, 36 to 72 hours time；
F, the lead for retractable pencil after drying is put into 100-120 DEG C of grease oil immersion 1-3 hours, carries out surface de-oiling, that is, obtain institute
The erasable color pencil lead stated.
In the present invention, it is preferred to, weigh each raw material according to following parts by weight：The parts by weight of pigment powder 11, the weight of adhesive 11
Measure part, the parts by weight of titanium dioxide 11, the parts by weight of talcum powder 66 and the parts by weight of water 40.
In the present invention, it is preferred to, in step a, described adhesive is hydroxypropyl methyl cellulose.
In the present invention, it is preferred to, in step c, described three-roll grinder includes horizontal three-roll grinder, tilting three roller
Grinder and vertical three-roll grinder.
In the present invention, it is preferred to, in step d, described crowded core equipment is hydraulic press or thrashing machine, the compacting of hydraulic press
Pressure is 30~60MPa, and the number of times of hammering is at least 30 times.
In the present invention, it is preferred to, in step f, described grease is by microwax, paraffin and salad oil according to mass ratio
For 1-3:1-3:1-3 is mixed.It is furthermore preferred that described grease is according to mass ratio by microwax, paraffin and salad oil
1:1:1 mixes.
Further, the invention also provides the erasable color pencil lead that preparation method as described above is prepared.
Compared to prior art, the beneficial effects of the present invention are：
Using the technology mode of immersion oil fat after drying, the micropore formed after moisture content drying, then by grease in heated condition
Lower filling is entered, and compare the mode that wax, grease are mixed into material in advance and is molded, dries, new formula, the product density of technique
High, flexural strength is high, and core point stress improves more than 1.5 times, and grease is more evenly distributed in color core, can reach coloring it is fine and smooth,
Uniformly, it is beautiful in colour, with common 4B or 6B rubbers and erasable effect.
Brief description of the drawings
Fig. 1 is the electron-microscope scanning result of the pen core prepared according to commonsense method；
Fig. 2 is the electron-microscope scanning result of the pen core prepared according to the method for the embodiment of the present invention 1.
Embodiment
The invention will now be further described with reference to specific embodiments, advantages of the present invention and feature will be with description and
It is apparent.But these embodiments are only exemplary, do not constitute any limitation to the scope of the present invention.People in the art
Member to the details and form of technical solution of the present invention it should be understood that can enter without departing from the spirit and scope of the invention
Row modifications or substitutions, but these are changed and replacement is each fallen within protection scope of the present invention.
A kind of preparation of erasable color pencil lead of embodiment 1
A, according to following parts by weight weigh each raw material：The parts by weight of pigment scarlet powder 11, the parts by weight of adhesive 11, the weight of titanium dioxide 11
Part, the parts by weight of talcum powder 66 and the parts by weight of water 40；
B and then each raw material after weighing are mixed in homogenizer；
C, mixed material are ground through horizontal three-roll grinder, obtain finely dispersed color pencil lead material；
D and then the color pencil lead material after being ground in step c by hydraulic press is obtained into color pencil lead, wherein, hydraulic press
Pressing pressure be 50MPa；
E, again process core drying are handled, and core drying temperature is 60 DEG C, 48 hours time；
F, the lead for retractable pencil after drying is put into 110 DEG C compares 1 according to weight by microwax, paraffin, salad oil:1:1 is mixed to get
Grease in oil immersion 2 hours, carry out surface de-oiling, that is, obtain described erasable color pencil lead.
A kind of preparation of erasable color pencil lead of embodiment 2
A, according to following parts by weight weigh each raw material：The parts by weight of forever solid orange RN 10, the weight of hydroxypropyl methyl cellulose 10
Part, the parts by weight of titanium dioxide 12, the parts by weight of talcum powder 70 and the parts by weight of water 45；
B and then each raw material after weighing are mixed in homogenizer；
C, mixed material are ground through tilting three-roll grinder, obtain finely dispersed color pencil lead material；
D and then the color pencil lead material after being ground in step c by thrashing machine is obtained into color pencil lead, wherein, hammering
Number of times is 50 times；
E, again process core drying are handled, and core drying temperature is 65 DEG C, 36 hours time；
F, the lead for retractable pencil after drying is put into 100 DEG C compares 1 according to weight by microwax, paraffin, salad oil:1:2 are mixed to get
Grease in oil immersion 2.5 hours, carry out surface de-oiling, that is, obtain described erasable color pencil lead.
A kind of preparation of erasable color pencil lead of embodiment 3
A, according to following parts by weight weigh each raw material：The reddish blue parts by weight of color lake 12, the parts by weight of hydroxypropyl methyl cellulose 12,
The parts by weight of titanium dioxide 10, the parts by weight of talcum powder 62 and the parts by weight of water 35；
B and then each raw material after weighing are mixed in homogenizer；
C, mixed material are ground through vertical three-roll grinder, obtain finely dispersed color pencil lead material；
D and then the color pencil lead material after being ground in step c by hydraulic press is obtained into color pencil lead, wherein, hydraulic press
Pressing pressure be 60MPa；
E, again process core drying are handled, and core drying temperature is 55 DEG C, 72 hours time；
F, the lead for retractable pencil after drying is put into 120 DEG C compares 2 according to weight by microwax, paraffin, salad oil:1:2 are mixed to get
Grease in oil immersion 1.5 hours, carry out surface de-oiling, that is, obtain described erasable color pencil lead.
A kind of preparation of common color lead for retractable pencil of comparative example 1
A, according to following parts by weight weigh each raw material：The parts by weight of pigment scarlet powder 12, the parts by weight of hydroxypropyl methyl cellulose 11, titanium
The parts by weight of white powder 10, the parts by weight of talcum powder 65, the parts by weight of salad oil 30 and the parts by weight of water 35；
B and then each raw material after weighing are mixed in homogenizer；
C, mixed material are ground through horizontal three-roll grinder, obtain finely dispersed color pencil lead material；
D and then the color pencil lead material after being ground in step c by hydraulic press is obtained into color pencil lead, wherein, hydraulic press
Pressing pressure be 50MPa；
E, again process core drying are handled, and core drying temperature is 50 DEG C, 48 hours time, is produced.
The performance comparison of the pen core of the present invention of comparative example 2 and common pen core
1st, tested products
Experimental group：The colored pen core of the present invention, is prepared according to the method for the embodiment of the present invention 1
Control group：Common color lead for retractable pencil, is prepared according to the method for comparative example 1
2nd, the electron-microscope scanning and specific area measuring of pen core
Control group pen core is placed under ESEM with experimental group pen core and observed, and table is compared using nitrogen adsorption method progress
Area estimation, ESEM result as depicted in figs. 1 and 2, can be seen that according to present invention implementation from Fig. 1 and Fig. 2 results respectively
The surface pore for the pen core that the method for example 1 is prepared is significantly reduced；Determination of Specific Surface Area result shows the ratio table of common color lead for retractable pencil
Area is 3.226, and the specific surface area of the pen core prepared according to the method for the embodiment of the present invention 1 is 1.923, is reduced
40%, illustrate that the pen core that common pen core and the present invention are prepared has significant difference in terms of compactness, the uniformity, and then say
The clear present invention prepares the sharp stress-bearing capability of pen core significant increase core, is not easily broken.
3rd, the sharp stress of core is determined
The sharp stress of core of control group pen core and experimental group pen core is measured using GB/T26704-11 standard method,
Measurement result shows, compared to common pen core, and the sharp stress of core of the pen core prepared according to the method for the embodiment of the present invention 1 is improved
More than 1.5 times.
Claims (8)
1. a kind of preparation method of erasable color pencil lead, it is characterised in that comprise the following steps：
A, according to following parts by weight weigh each raw material：Pigment powder 10-12 parts by weight, adhesive 10-12 parts by weight, titanium dioxide 10-
12 parts by weight, talcum powder 62-70 parts by weight and water 30-50 parts by weight；
B, will weigh after each raw material mixed in homogenizer or low-speed mixer；
C, mixed material are ground through three-roll grinder, obtain finely dispersed color pencil lead material；
D, by step c grind after color pencil lead material through squeezing core equipment obtain color pencil lead；
E, again process core drying are handled, and core drying temperature is 45 to 65 DEG C, 36 to 72 hours time；
F, the lead for retractable pencil after drying is put into 100-120 DEG C of grease oil immersion 1-3 hours, carries out surface de-oiling, that is, obtain described
Erasable color pencil lead.
2. preparation method as claimed in claim 1, it is characterised in that weigh each raw material according to following parts by weight：Pigment powder 11
Parts by weight, the parts by weight of adhesive 11, the parts by weight of titanium dioxide 11, the parts by weight of talcum powder 66 and the parts by weight of water 40.
3. preparation method as claimed in claim 1 or 2, it is characterised in that in step a, described adhesive is hydroxypropyl first
Base cellulose.
4. preparation method as claimed in claim 1, it is characterised in that in step c, described three-roll grinder includes level three
Roller mill, tilting three-roll grinder and vertical three-roll grinder.
5. preparation method as claimed in claim 1, it is characterised in that in step d, described crowded core equipment is hydraulic press or beaten
Machine is hit, the pressing pressure of hydraulic press is 30~60MPa, and the number of times of hammering is at least 30 times.
6. preparation method as claimed in claim 1, it is characterised in that in step f, described grease by microwax, paraffin with
And salad oil is 1-3 according to mass ratio:1-3:1-3 is mixed.
7. preparation method as claimed in claim 6, it is characterised in that in step f, described grease by microwax, paraffin with
And salad oil is 1 according to mass ratio:1:1 mixes.
8. the erasable color pencil lead prepared according to the preparation method described in claim any one of 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454263.3A CN107163688B (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method and products thereof of erasable color pencil lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454263.3A CN107163688B (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method and products thereof of erasable color pencil lead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107163688A true CN107163688A (en) | 2017-09-15 |
| CN107163688B CN107163688B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710454263.3A Active CN107163688B (en) | 2017-06-16 | 2017-06-16 | A kind of preparation method and products thereof of erasable color pencil lead |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019006035A1 (en) * | 2019-08-27 | 2021-03-04 | Staedtler Mars Gmbh & Co. Kg | Refill for writing, drawing and / or painting implements and processes for their manufacture |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595700A (en) * | 1991-05-02 | 1997-01-21 | Mitsubishi Pencil Kabushiki Kaisha | Non-baked color pencil leads and method for preparing same |
-
2017
- 2017-06-16 CN CN201710454263.3A patent/CN107163688B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595700A (en) * | 1991-05-02 | 1997-01-21 | Mitsubishi Pencil Kabushiki Kaisha | Non-baked color pencil leads and method for preparing same |
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| CN107163688B (en) | 2019-03-19 |
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