CN112210316B - Environment-friendly dual-purpose color-changing solid glue stick and preparation method thereof - Google Patents
Environment-friendly dual-purpose color-changing solid glue stick and preparation method thereof Download PDFInfo
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
- C09J9/005—Glue sticks
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention provides an environment-friendly dual-purpose color-changing solid glue stick and a preparation method thereof, wherein the environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 10-30 parts of water; 30-70 parts of acrylic emulsion; 5-25 parts of at least one of polyvinylpyrrolidone or dextrin or modified starch; 4-10 parts of propylene glycol or glycerol; 3-7 parts of stearic acid and 0.5-2.5 parts of sodium hydroxide; 0.05-0.1 part of optically variable material and 0.5-2 parts of tackifier. After the glue stick is uniformly coated, the glue stick can display different colors according to the addition of the optically variable material; pasting is carried out before the color disappears, and the glue stick can be permanently and firmly pasted after the coating is completely dried; and after the color completely disappears, pasting, wherein the interface becomes a sticky note, and the sticky note can be peeled off and pasted repeatedly for multiple times.
Description
Technical Field
The invention relates to a solid glue stick, in particular to an environment-friendly dual-purpose color-changing solid glue stick and a preparation method thereof.
Background
The solid glue is also called lipstick glue and glue stick, is glue mainly used for sticking paper, and because the water content is very small, the paper is not wrinkled and is dried quickly when sticking paper, and the glue is convenient to carry, thus being a popular school and office supply.
The solid glue is a common product in the adhesives, and is mainly characterized in that: the raw materials are easy to obtain, the process is simple, the shelf life is long, the carrying is convenient, the bonding is firm, and the adhesive is suitable for bonding paper fiber products. The solid glue can be used for bonding various papers and paper products, and is suitable for office staff, accountants, secretarial, teachers and other related staff.
The traditional polyvinyl formal solid glue stick has the advantages of low cost, high drying speed and the like, but the residual free formaldehyde of the polyvinyl formal solid glue greatly reduces the environmental performance and the service performance of the polyvinyl formal solid glue stick. Compared with polyvinyl formal glue sticks, the acrylic acid solid glue sticks, the polyvinylpyrrolidone, the novel starch and other biomass glue sticks have the characteristics of good shaping property, high viscosity strength, wide temperature range adaptation, environmental protection, no aldehyde hazards such as formaldehyde and the like. Compared with the traditional glue, the solid glue stick has the greatest characteristics of convenient use and carrying, cleanness, sanitation and no leakage, diffusion and permeation, and is an ideal office supply for replacing the glue. The sticky note is a sticky note with sticky back surface for reminding a user of backlog. The traditional sticky note is a small paper card made in advance, has various colors, and can be used only on a specific paper sheet.
The environmental protection dual-purpose type discoloration solid glue stick with permanent sticking and stripping multiple sticking has not been reported in scientific and technical documents.
Disclosure of Invention
In order to solve the problems, the invention provides an environment-friendly dual-purpose color-changing solid glue stick and a preparation method thereof, after the glue stick is uniformly smeared, the glue stick can display different colors according to the addition of an optically variable material; pasting is carried out before the color disappears, and the glue stick can be permanently and firmly pasted after the coating is completely dried; and after the color completely disappears, pasting, wherein the interface becomes a sticky note, and the sticky note can be peeled off and pasted repeatedly for multiple times.
The object of the invention is achieved in the following way: the environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 10-30 parts of water; 30-70 parts of acrylic emulsion; 5-25 parts of at least one of polyvinylpyrrolidone or dextrin or modified starch; 4-10 parts of propylene glycol or glycerol; 3-7 parts of stearic acid and 0.5-2.5 parts of sodium hydroxide; 0.05-0.1 part of optically variable material and 0.5-2 parts of tackifier.
The tackifier is gelatin or polyisobutylene.
The optically variable material is photosensitive MC powder.
Other materials can also be included, such as 0.2-2 parts, and the other materials comprise defoaming agents, preservatives and the like.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding at least one of acrylic emulsion, polyvinylpyrrolidone or dextrin or modified starch while stirring, continuously stirring and heating to 85-95 ℃ after uniformly stirring, keeping the temperature at 85-95 ℃, stirring and dissolving completely, adding a tackifier, propylene glycol or glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring and fully and uniformly mixing; standing at constant temperature of 85-95 deg.C for defoaming, and packaging after completely defoaming; other materials, if any, are added along with the optically variable material.
Compared with the prior art, the invention provides the environment-friendly dual-purpose color-changing solid glue stick and the preparation method thereof, after the glue stick is uniformly coated, the glue stick can display different colors according to the addition of the optically variable material; pasting is carried out before the color disappears, and the glue stick can be permanently and firmly pasted after the coating is completely dried; and after the color disappears completely, the interface is pasted, and the interface becomes a sticky note which can be peeled off again and pasted repeatedly for multiple times.
Detailed Description
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 10-30 parts of water; 30-70 parts of acrylic emulsion; 5-25 parts of at least one of polyvinylpyrrolidone or dextrin or modified starch; 4-10 parts of propylene glycol or glycerol; 3-7 parts of stearic acid and 0.5-2.5 parts of sodium hydroxide; 0.05-0.1 part of optically variable material and 0.5-2 parts of tackifier.
The tackifier is gelatin or polyisobutylene.
The optically variable material may be photo-sensitive MC powder.
Other materials can be also included, such as 0.2-2 parts, and other materials include defoaming agent, preservative and the like.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding at least one of acrylic emulsion, polyvinylpyrrolidone or dextrin or modified starch while stirring, continuously stirring and heating to 85-95 ℃ after uniformly stirring, keeping the temperature at 85-95 ℃, stirring and dissolving completely, adding a tackifier, propylene glycol or glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring and fully and uniformly mixing; standing at constant temperature of 85-95 deg.C for defoaming, and packaging after completely defoaming; other materials, if any, are added along with the optically variable material.
In the invention, water is used as a solvent to provide a dissolving medium; the acrylic emulsion is water-based adhesive sticker emulsion, is a pressure-sensitive adhesive with repeated sticking performance, has good water solubility and good adhesion, is a main material for realizing the second purpose, and is a reinforcer for the first purpose. The polyvinyl pyrrolidone is adhesive resin, has good hydrophilicity, can be mixed with water in any proportion, and has excellent adhesion and film-forming properties. Dextrin is an adhesive material, and the micromolecule of the dextrin provides good initial adhesion. The modified starch is modified hydroxypropyl oxidized starch, specifically can be oxidized hydroxypropyl starch phosphate, partial hydroxyl is replaced by ether bond to increase the stability of starch ether, and starch macromolecular substances are degraded by oxidation to increase the solubility and stability of starch and enhance the initial viscosity of starch. The propylene glycol or the glycerol is used as a humectant, increases the plasticity of the colloid, prolongs the shelf life and improves the lubricating performance. Stearic acid is excipient, and the product is solidified and formed; sodium hydroxide is a forming stabilizing aid, and reacts with stearic acid to form sodium stearate, so that the forming performance is realized. The optically variable material is a color developing agent that provides color to the product and also provides an indication of the transition between the first use and the second use. The tackifier is gelatin, polyisobutylene and the like, so that the cohesive force of the product is increased, and the product performance is more excellent. Other materials comprise defoaming agents, preservatives and the like, so that the service performance and the quality guarantee performance of the product are prolonged.
The environment-friendly dual-purpose color-changing solid glue stick has two obvious purposes: after the glue stick is uniformly coated, the glue stick can display different colors according to the added optically variable materials; pasting is carried out before the color disappears, the glue stick can be permanently and firmly pasted after the coating is completely dried, and the first purpose is realized; and after the color completely disappears, the interface becomes a sticky note, and the sticky note can be peeled off and pasted repeatedly for multiple times to realize the second purpose. The glue stick can be used for bonding various paper fiber products, can be washed by water, and is safe and environment-friendly. In addition, by adjusting the time for adding the optically variable material and bonding, the color disappearance can be used as an index to realize the switching of two purposes of the glue stick.
The present invention is described in detail below with reference to specific embodiments, it should be noted that the embodiments are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention, and those skilled in the art can make modifications and adaptations of the present invention based on the above-mentioned disclosure.
Example 1
The environment-friendly dual-purpose color-changing solid glue stick is prepared from the following raw materials in parts by weight:
25 parts of water; 52 parts of acrylic emulsion; 10 parts of polyvinylpyrrolidone; 5 parts of glycerol; 5 parts of stearic acid and 1 part of sodium hydroxide; 0.15 part of optically variable material, 0.95 part of gelatin and 0.9 part of preservative; the optically variable material is photosensitive MC powder, and the preservative is Kathon.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps: adding water into a reaction device, adding acrylic emulsion and polyvinylpyrrolidone while stirring, stirring uniformly, then continuing to stir and heat to 90 ℃, keeping the temperature at 90 ℃, stirring and dissolving completely, adding gelatin, glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly. Dissolving sodium hydroxide in water, adding the solution into the emulsion while stirring, and fully reacting. Adding the optically variable material and the preservative while stirring, and fully and uniformly mixing. Standing at constant temperature of 90 deg.C for defoaming, and packaging after completely defoaming.
Example 2
The environment-friendly dual-purpose color-changing solid glue stick is prepared from the following raw materials in parts by weight:
20 parts of water; 50 parts of acrylic emulsion and 17 parts of dextrin; 5 parts of propylene glycol; 4.2 parts of stearic acid and 0.8 part of sodium hydroxide; 0.1 part of optically variable material, 2 parts of gelatin and 0.9 part of defoaming agent; the optically variable material is photosensitive MC powder, and the defoaming agent is tributyl phosphate.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps: adding water into a reaction device, adding the acrylic emulsion and the dextrin while stirring, continuously stirring and heating to 90 ℃ after uniformly stirring, keeping the temperature at 90 ℃, stirring and dissolving completely, adding the gelatin, the propylene glycol and the stearic acid while stirring, and continuously stirring and dissolving uniformly. Dissolving sodium hydroxide in water, adding the solution into the emulsion while stirring, and fully reacting. Adding the optically variable material and the defoaming agent while stirring, and fully and uniformly mixing. Standing at constant temperature of 90 deg.C for defoaming, and packaging after completely defoaming.
Example 3
The environment-friendly dual-purpose color-changing solid glue stick is prepared from the following raw materials in parts by weight:
30 parts of water; 52 parts of acrylic emulsion; 6 parts of modified starch; 5 parts of glycerol; 4.5 parts of stearic acid and 0.9 part of sodium hydroxide; 0.2 part of optical variable material, 0.5 part of polyisobutylene, 0.3 part of preservative and 0.6 part of defoaming agent, wherein the optical variable material is photosensitive MC powder, the modified starch is oxidized hydroxypropyl starch phosphate, and the preservative is p-hydroxybenzoate.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps: adding water into a reaction device, adding the acrylic emulsion and the modified starch while stirring, continuously stirring and heating to 90 ℃ after uniformly stirring, keeping the temperature at 90 ℃, stirring and dissolving completely, adding the polyisobutylene, the glycerol and the stearic acid while stirring, and continuously stirring and dissolving uniformly. Dissolving sodium hydroxide in water, adding the solution into the emulsion while stirring, and fully reacting. Adding the optically variable material, the preservative and the defoaming agent while stirring, and fully and uniformly mixing. Keeping the mixture at the constant temperature of 90 ℃ for static defoaming, and filling after complete defoaming.
The properties of the glue stick are as follows: the detection items and methods are strictly performed according to QB/T2857-2007.
Smearing characteristics: the release of smaller and larger lumps from the continuous adhesive film when the glue stick is applied to paper. The glue stick was moved in several tracks on the a4 sheet under a specified test weight load. The sliding characteristics were evaluated qualitatively. The uniformity and clumping of the tacky film was visually evaluated.
Pasting time: after the paper is evenly coated on the A4 paper under a specific environment, the paper surface is overlapped for a period of time, the paper is pulled, the paper surface is touched by hands, the coated part is not wetted, and the elapsed time is the drying time.
Stripping performance: after a specified storage time under specific environmental conditions, the strips were pulled apart from each other by hand and visually rated for the following occurrences of paper breaks. The storage time specified here is the time taken for the glue to dry from application.
A.100% tear of the material, without detachment of the bond
B. About 75% tear material, bond not broken
C. About 50% tear of the material, without detachment of the bond
D. Slight fiber breakage
E. Adhering, but not tearing, material, the bond being released
F. Very weak adhesion.
Free formaldehyde: the free formaldehyde content of the product obtained in the above example was determined by acetylacetone spectrophotometry according to the provisions of the national standard GB 18583-2008.
Color development time: the glue stick is evenly smeared on the paper under a specific environment, and the time required for the color of the even coating to disappear completely is obtained.
In order to test the stripping performance and drying time of the application 1 and the application 2, the glue on the glue stick is uniformly coated on the A4 paper; for experimental use 1 peel performance, dry time study: before the color on the A4 paper disappears, the glue coating parts of the two A4 papers are overlapped with each other, and then the peeling performance and the drying time are studied; for experimental use 2 release performance, dry time study: after the color on the a4 paper had disappeared, the gummed portions of the two a4 papers were laminated to each other, and then the peeling property and the drying time were examined.
Results
Specific results are shown in Table 1
Note: the above properties are measured at room temperature of 25 ℃ except the measurement method required by national standards.
The results shown in table 1 indicate that the glue stick of the present invention has two significant uses: after the glue stick is uniformly coated, the glue stick can display different colors according to the addition of the optically variable material; the application 1 is that the glue stick is pasted before the color disappears, and the glue stick can be permanently and firmly pasted after the coating is completely dried; and the application 2 is that the paste is carried out after the color completely disappears, the interface becomes a sticky note at the moment, and the sticky note can be peeled off again and pasted repeatedly for multiple times.
The embodiments of the present application may also be the following embodiments
Example 4
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 10 parts of water; 30 parts of acrylic emulsion; 5 parts of polyvinylpyrrolidone; 4 parts of propylene glycol; 3 parts of stearic acid and 0.5 part of sodium hydroxide; 0.05 part of optically variable material and 0.5 part of tackifier. The tackifier is gelatin, and the optically variable material is photosensitive MC powder.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion and polyvinylpyrrolidone while stirring, stirring uniformly, then continuing to stir and heat to 85 ℃, keeping the temperature at 85 ℃, stirring and dissolving completely, adding tackifier, propylene glycol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring and fully and uniformly mixing; keeping the temperature at 85 ℃ for static defoaming, and filling after complete defoaming.
Example 5
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 30 parts of water; 70 parts of acrylic emulsion; 25 parts of dextrin; 10 parts of glycerol; 7 parts of stearic acid and 2.5 parts of sodium hydroxide; 0.1 part of optically variable material and 2 parts of tackifier. The tackifier is polyisobutylene; the optically variable material is photosensitive MC powder.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion and dextrin while stirring, stirring uniformly, then continuing to stir and heat to 95 ℃, keeping the temperature at 95 ℃, stirring and dissolving completely, adding tackifier, glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring, and fully and uniformly mixing; standing at constant temperature of 95 ℃ for defoaming, and filling after complete defoaming.
Example 6
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 11 parts of water; 60 parts of acrylic emulsion; 10 parts of modified starch; 8 parts of propylene glycol; 4 parts of stearic acid and 1.1 parts of sodium hydroxide; 0.06 part of optically variable material and 0.8 part of tackifier. The tackifier is gelatin, and the optically variable material is photosensitive MC powder; the modified starch is oxidized hydroxypropyl starch phosphate.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion and modified starch while stirring, continuously stirring and heating to 90 ℃ after uniformly stirring, keeping the temperature at 90 ℃, stirring and dissolving completely, adding tackifier, propylene glycol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring and fully and uniformly mixing; standing at constant temperature of 90 deg.C for defoaming, and packaging after completely defoaming.
Example 7
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 28 parts of water; 35 parts of acrylic emulsion; 7 parts of polyvinylpyrrolidone; 5 parts of glycerol; 6 parts of stearic acid and 2.3 parts of sodium hydroxide; 0.09 part of optically variable material, 0.8 part of tackifier and 0.2 part of other materials. The tackifier is polyisobutylene, the optically variable material is photosensitive MC powder, and the other material is defoaming agent dimethyl silicone oil.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion and dextrin while stirring, continuously stirring and heating to 88 ℃ after uniformly stirring, keeping the temperature at 88 ℃, stirring and dissolving completely, adding tackifier, glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material and other materials while stirring, and fully and uniformly mixing; standing at constant temperature of 88 ℃ for defoaming, and filling after complete defoaming.
Example 8
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 21 parts of water; 52 parts of acrylic emulsion; 8 parts of dextrin; 6 parts of propylene glycol; 7 parts of stearic acid and 0.6 part of sodium hydroxide; 0.07 part of optically variable material, 1.8 parts of tackifier and 1 part of other materials. The tackifier is gelatin, the optically variable material is photosensitive MC powder, and the other materials are preservative p-hydroxybenzoate.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion and dextrin while stirring, continuously stirring and heating to 92 ℃ after uniformly stirring, keeping the temperature at 92 ℃, stirring and dissolving completely, adding tackifier, propylene glycol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, adding the solution into the emulsion prepared in the step (1) while stirring, and fully reacting;
(3) then adding the optically variable material and other materials while stirring, and fully and uniformly mixing; standing at constant temperature of 92 ℃ for defoaming, and filling after complete defoaming.
Example 9
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 25 parts of water; 45 parts of acrylic emulsion; 8 parts of polyvinylpyrrolidone, 6 parts of dextrin and 10 parts of modified starch; 10 parts of propylene glycol; 3 parts of stearic acid and 1.6 parts of sodium hydroxide; 0.07 part of optically variable material, 1.2 parts of tackifier and 2 parts of other materials. The tackifier is polyisobutylene, the optically variable material is photosensitive MC powder, the modified starch is oxidized hydroxypropyl starch phosphate, and the other materials comprise 0.8 part of defoaming agent tributyl phosphate and 1.2 parts of preservative Kathon.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion, polyvinylpyrrolidone, dextrin and modified starch while stirring, stirring uniformly, then continuing to stir and heat to 94 ℃, keeping the temperature at 94 ℃, stirring and dissolving completely, adding a tackifier, propylene glycol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, adding the solution into the emulsion prepared in the step (1) while stirring, and fully reacting;
(3) then adding the optically variable material and other materials while stirring, and fully and uniformly mixing; standing at the constant temperature of 94 ℃ for defoaming, and filling after complete defoaming.
Example 10
The environment-friendly dual-purpose color-changing solid glue stick comprises the following raw materials in parts by weight: 14 parts of water; 33 parts of acrylic emulsion; 4 parts of polyvinylpyrrolidone; 4 parts of dextrin; 4 parts of glycerol; 3 parts of stearic acid and 2.1 parts of sodium hydroxide; 0.09 part of optically variable material, 1.8 parts of tackifier and 0.6 part of other materials. The tackifier is gelatin, the optically variable material is photosensitive MC powder, and the other materials are preservative p-hydroxybenzoate.
The preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding acrylic emulsion, polyvinylpyrrolidone and dextrin while stirring, stirring uniformly, then continuing to stir and heat to 86 ℃, stirring at the constant temperature of 86 ℃ until the mixture is completely dissolved, adding tackifier, glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material and other materials while stirring, and fully and uniformly mixing; standing at constant temperature of 92 ℃ for defoaming, and filling after complete defoaming.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (2)
1. The application of the environment-friendly dual-purpose color-changing solid glue stick is characterized in that: after the glue stick is uniformly coated, the glue stick can display different colors according to the addition of the optically variable material; pasting is carried out before the color disappears, and the glue stick can be permanently and firmly pasted after the coating is completely dried; after the color disappears completely, the interface is pasted, and the interface becomes a sticky note which can be peeled off again and pasted repeatedly for multiple times;
the environment-friendly dual-purpose color-changing solid glue stick is prepared from the following raw materials in parts by weight: 10-30 parts of water; 30-70 parts of acrylic emulsion; 5-25 parts of at least one of polyvinylpyrrolidone or dextrin or modified starch; 4-10 parts of propylene glycol or glycerol; 3-7 parts of stearic acid and 0.5-2.5 parts of sodium hydroxide; 0.05-0.1 part of optically variable material and 0.5-2 parts of tackifier; the acrylic emulsion is a pressure-sensitive adhesive with repeated sticking performance, and the tackifier is gelatin or polyisobutylene; 0.2-2 parts of other materials, and the other materials are at least one of defoaming agent and preservative.
2. The use of the environmentally friendly dual-purpose color-changing solid glue stick according to claim 1, wherein: the preparation method of the environment-friendly dual-purpose color-changing solid glue stick comprises the following steps:
(1) adding water into a reaction device, adding at least one of acrylic emulsion, polyvinylpyrrolidone or dextrin or modified starch while stirring, continuously stirring and heating to 85-95 ℃ after uniformly stirring, stirring and dissolving completely at constant temperature of 85-95 ℃, adding a tackifier, propylene glycol or glycerol and stearic acid while stirring, and continuously stirring and dissolving uniformly to obtain emulsion;
(2) dissolving sodium hydroxide in water, stirring and adding the sodium hydroxide into the emulsion prepared in the step (1), and fully reacting;
(3) then adding the optically variable material while stirring and fully and uniformly mixing; standing at constant temperature of 85-95 deg.C for defoaming, and packaging after completely defoaming; other materials, if any, are added along with the optically variable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011011575.5A CN112210316B (en) | 2020-09-23 | 2020-09-23 | Environment-friendly dual-purpose color-changing solid glue stick and preparation method thereof |
Applications Claiming Priority (1)
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| CN202011011575.5A CN112210316B (en) | 2020-09-23 | 2020-09-23 | Environment-friendly dual-purpose color-changing solid glue stick and preparation method thereof |
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| CN102134460A (en) * | 2011-02-25 | 2011-07-27 | 浙江大学宁波理工学院 | Blue solid glue stick with color being changed after application and preparation method thereof |
| CN103214980B (en) * | 2013-05-13 | 2015-05-13 | 江苏兴达文具集团有限公司 | Preparation method of discoloring solid rubber stick |
| CN105038662B (en) * | 2015-07-02 | 2017-03-01 | 佛山市顺德区领锋新材料有限公司 | A kind of method preparing composite solid gum |
| CN108359402A (en) * | 2018-04-04 | 2018-08-03 | 江苏兴达文具集团有限公司 | Strength transparent solid glue material and preparation method thereof |
| CN111073559A (en) * | 2019-11-14 | 2020-04-28 | 金华市鸿泰文具有限公司 | Mild fadeable environment-friendly solid gum and preparation method thereof |
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