CN113861843B - Neutral odorless gum and preparation method thereof - Google Patents
Neutral odorless gum and preparation method thereof Download PDFInfo
- Publication number
- CN113861843B CN113861843B CN202111114963.0A CN202111114963A CN113861843B CN 113861843 B CN113861843 B CN 113861843B CN 202111114963 A CN202111114963 A CN 202111114963A CN 113861843 B CN113861843 B CN 113861843B
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- China
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- parts
- dodecane
- neutral
- dammar resin
- gum
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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
- C09D193/00—Coating compositions based on natural resins; Coating compositions based on derivatives thereof
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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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)
- Cosmetics (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a neutral odorless gum which comprises, by weight, 52-58 parts of dodecane, 37-43 parts of dammar resin and 3-7 parts of acetyl tributyl citrate. The method comprises S1, weighing the dodecane and the acetyl tributyl citrate in parts by weight and placing the mixture in a material tank; s2, moving the batching cylinder to the stirrer for stirring; s3, weighing the dammar resin, adding the dammar resin into a proportioning cylinder for three times, and stirring continuously to enable the dammar resin to be completely dissolved and become uniform colloid; s4, stopping the stirrer, and moving the proportioning cylinder away from the stirrer; s5, sealing the dosing cylinder, and standing; s6, filtering through a nylon filter screen; s7, collecting filtrate, and measuring the refractive index and acid value of the filtrate; and S8, after the refractive index and the acid value are qualified, filling, labeling, boxing and warehousing. The invention does not contain dimethylbenzene, the refractive index and the like of the dimethylbenzene are almost equal to neutral gum, and the dyed slices are sealed by neutral odorless gum and do not fade after passing an acceleration test.
Description
Technical Field
The invention relates to the technical field of gums, and particularly relates to a neutral odorless gum and a preparation method thereof.
Background
After the pathological tissue section is dyed, the pathological tissue section needs to be sealed and stored, the storage life is long, and the dyed color cannot fade. The use of a mounting adhesive is required during mounting, the mounting adhesive used in the past ninety years is mainly neutral adhesive, and the manufacturers have two families, one is Shanghai Huashen rehabilitation equipment company and the other is Shanghai Biao brand model factory, but the neutral adhesive is still used up to now. The neutral gum mainly contains xylene and dammar resin (natural resin), has the advantages that the refractive index is equal to that of glass, the color of a sealed section is not easy to fade, and the greatest defect is that the neutral gum contains the xylene, the xylene has irritation on esophagus, respiratory tract and mucous membrane, can possibly cause conjunctiva and pharynx congestion, dizziness, headache and the like, and can possibly cause neurasthenia syndrome, female abnormal menstruation, dry and chapped skin and the like after long-term contact. Xylene is collected in three carcinogens. Neutral gum substitutes, namely neutral environment-friendly quick-drying glue and ultra-clean sealing glue, are found in the market after the nineties of the last century. Neutral environment-friendly quick-drying glue and ultra-clean sealing glue have no xylene smell, but the refractive indexes of the neutral environment-friendly quick-drying glue and the ultra-clean sealing glue are lower than that of neutral glue, and the color of the dyed section can fade slowly.
Disclosure of Invention
The invention aims to solve the problems that: a neutral odorless gum free of xylene and having a refractive index substantially equal to that of neutral gum, which does not discolor after being sealed with neutral odorless gum after dyeing and passing an acceleration test, and a method for producing the same are provided.
The technical scheme provided by the invention for solving the problems is as follows: the neutral odorless gum comprises, by weight, 52-58 parts of dodecane isoparaffin, 37-43 parts of dammar resin and 3-7 parts of acetyl tributyl citrate.
Preferably, the composition comprises the following raw materials, by weight, 55 parts of dodecane, 40 parts of dammar resin and 5 parts of acetyl tributyl citrate.
Preferably, the paint comprises the following raw materials, by weight, 52 parts of dodecane, 42 parts of dammar resin and 6 parts of acetyl tributyl citrate.
Preferably, the paint comprises the following raw materials, by weight, 58 parts of dodecane, 38 parts of dammar resin and 4 parts of acetyl tributyl citrate.
The invention also discloses a preparation method of the neutral odorless gum adopting any one of the above items, and the method comprises the following steps
S1, weighing the dodecane isoparaffin and the acetyl tributyl citrate in parts by weight and placing the dodecane and the acetyl tributyl citrate in a proportioning tank;
s2, moving the proportioning cylinder to the stirrer, and adjusting the rotation speed to the required rotation speed for stirring;
s3, weighing the dammar resin, adding the dammar resin into a proportioning cylinder for three times, continuously stirring to enable the dammar resin to be completely dissolved and become uniform colloid, checking the concentration degree of the colloid, properly supplementing the dammar resin after diluting, and properly supplementing the dodecane isoparaffin after concentrating;
s4, stopping the stirrer, and moving the proportioning cylinder away from the stirrer;
s5, sealing the dosing cylinder, and standing;
s6, filtering through a nylon filter screen;
s7, collecting filtrate, and measuring the refractive index and acid value of the filtrate;
and S8, after the refractive index and the acid value are qualified, filling, labeling, boxing and warehousing.
Preferably, in step S2, the rotation speed of the agitator is adjusted to 80 rpm.
Preferably, the standing time in the step S5 is 30 days.
Preferably, the nylon filter screen in step S6 has a size of 300 meshes.
Compared with the prior art, the invention has the advantages that:
(1) the neutral odorless gum does not use dimethylbenzene, so that the harm of the dimethylbenzene to a human body and the environmental pollution are eliminated.
(2) The natural sedimentation method is adopted for preparation, so that energy consumption can be greatly saved, and a large number of links for cleaning pipelines are avoided. The neutral gum is mostly prepared by a pressure filtration method, and although the production period can be shortened by the pressure filtration method, the energy consumption is large, and pipelines need to be cleaned.
Detailed Description
The embodiments of the present invention will be described in detail with reference to specific embodiments, so that how to implement the technical means for solving the technical problems and achieving the technical effects of the present invention can be fully understood and implemented.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the embodiments of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the description of embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Example 1
The neutral odorless gum comprises the following raw materials, by weight, 55 parts of dodecane isoparaffin, 40 parts of dammar resin and 5 parts of acetyl tributyl citrate.
Example 2
The neutral odorless gum comprises the following raw materials, by weight, 52 parts of dodecane, 42 parts of dammar resin and 6 parts of acetyl tributyl citrate.
Example 3
The neutral odorless gum comprises the following raw materials, by weight, 58 parts of dodecane, 38 parts of dammar resin and 4 parts of acetyl tributyl citrate.
Example 4
The neutral odorless gum comprises the following raw materials, 53 parts of dodecane, 43 parts of dammar resin and 4 parts of acetyl tributyl citrate.
The invention also discloses a preparation method of the neutral odorless gum, which comprises the following steps
S1, weighing the dodecane and the acetyl tributyl citrate in parts by weight and placing the dodecane and the acetyl tributyl citrate in a proportioning tank;
s2, moving the batching cylinder to the stirrer, and adjusting to the required rotating speed for stirring;
s3, weighing the dammar resin, adding the dammar resin into a proportioning cylinder for three times, continuously stirring to completely dissolve the dammar resin and form uniform colloid, checking the concentration degree of the colloid, diluting the appropriate supplemented dammar resin, and concentrating the appropriate supplemented dodecacarbon isoparaffin;
s4, stopping the stirrer, and moving the proportioning cylinder away from the stirrer;
s5, sealing the dosing cylinder, and standing;
s6, filtering through a nylon filter screen;
s7, collecting filtrate, and measuring the refractive index and acid value of the filtrate;
and S8, after the refractive index and the acid value are qualified, filling, labeling, boxing and warehousing.
In step S2, the rotation speed of the stirrer is adjusted to 80 rpm.
Wherein the standing time in the step S5 is 30 days.
Wherein the nylon filter screen in the step S6 has a specification of 300 meshes.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the scope of the invention as defined by the independent claims are intended to be embraced therein.
Claims (7)
1. A method for preparing neutral odorless gum is characterized in that: the composition comprises the following raw materials, by weight, 52-58 parts of dodecane isoparaffin, 37-43 parts of dammar resin and 3-7 parts of acetyl tributyl citrate;
the method comprises the following steps
S1, weighing the dodecane and the acetyl tributyl citrate in parts by weight and placing the dodecane and the acetyl tributyl citrate in a proportioning tank;
s2, moving the batching cylinder to the stirrer, and adjusting to the required rotating speed for stirring;
s3, weighing the dammar resin, adding the dammar resin into a proportioning cylinder for three times, continuously stirring to enable the dammar resin to be completely dissolved and become uniform colloid, checking the concentration degree of the colloid, properly supplementing the dammar resin after diluting, and properly supplementing the dodecane isoparaffin after concentrating;
s4, stopping the stirrer, and moving the proportioning cylinder away from the stirrer;
s5, sealing the dosing cylinder, and standing;
s6, filtering through a nylon filter screen;
s7, collecting filtrate, and measuring the refractive index and acid value of the filtrate;
and S8, after the refractive index and the acid value are qualified, filling, labeling, boxing and warehousing.
2. The method of preparing a neutral gum without odor of claim 1, wherein: the composition comprises 55 parts of dodecane, 40 parts of dammar resin and 5 parts of acetyl tributyl citrate.
3. The method of preparing a neutral gum without odor of claim 1, wherein: the paint is prepared from 52 parts of dodecane isoparaffin, 42 parts of dammar resin and 6 parts of acetyl tributyl citrate.
4. The method of preparing a neutral gum without odor of claim 1, wherein: the composition comprises 58 parts of dodecane, 38 parts of dammar resin and 4 parts of acetyl tributyl citrate.
5. The method of preparing a neutral gum without odor of claim 1, wherein: in step S2, the rotation speed of the stirrer was adjusted to 80 rpm.
6. The method of preparing a neutral gum without odor of claim 1, wherein: the standing time in the step S5 is 30 days.
7. The method of preparing a neutral gum without odor of claim 1, wherein: the specification of the nylon filter screen in the step S6 is 300 meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114963.0A CN113861843B (en) | 2021-09-23 | 2021-09-23 | Neutral odorless gum and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111114963.0A CN113861843B (en) | 2021-09-23 | 2021-09-23 | Neutral odorless gum and preparation method thereof |
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| Publication Number | Publication Date |
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| CN113861843A CN113861843A (en) | 2021-12-31 |
| CN113861843B true CN113861843B (en) | 2022-09-16 |
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| CN202111114963.0A Active CN113861843B (en) | 2021-09-23 | 2021-09-23 | Neutral odorless gum and preparation method thereof |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104800125B (en) * | 2015-05-04 | 2018-02-23 | 上海万化科技有限公司 | A kind of nail polish and preparation method thereof |
| CN107488424B (en) * | 2017-08-25 | 2019-05-21 | 宁波同盛生物科技有限公司 | A kind of no benzene mountant and preparation method thereof |
| CN108387420A (en) * | 2018-02-09 | 2018-08-10 | 李西启 | A kind of novel environment friendly dewaxing clarifier without dimethylbenzene |
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