CN112552829B - Odorless eyelash grafting glue and preparation method and application thereof - Google Patents
Odorless eyelash grafting glue and preparation method and application thereof Download PDFInfo
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- CN112552829B CN112552829B CN202011353772.5A CN202011353772A CN112552829B CN 112552829 B CN112552829 B CN 112552829B CN 202011353772 A CN202011353772 A CN 202011353772A CN 112552829 B CN112552829 B CN 112552829B
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
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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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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Abstract
The invention provides an odorless eyelash grafting glue and a preparation method and application thereof, wherein the eyelash grafting glue comprises the following raw materials in percentage by mass: 85-95% of alpha-cyanoacrylate, 3-12% of thickening agent, 0.5-3% of color paste and 0.02-0.5% of accelerator. The preparation method of the odorless eyelash grafting glue comprises the following steps: adding an accelerant and color paste into the alpha-cyanoacrylate under the stirring condition at room temperature, adding the thickening agent after uniformly stirring, and uniformly stirring and mixing to obtain the alpha-cyanoacrylate. The eyelash grafting glue disclosed by the invention has the advantages of higher flexibility, stronger shearing strength, longer quality guarantee period, no smell and difficulty in whitening, can well realize grafting when being applied to eyelash grafting, and also has better durability.
Description
Technical Field
The invention relates to an odorless eyelash grafting glue and a preparation method and application thereof, and belongs to the technical field of adhesives.
Background
Along with the continuous improvement of living standard, people's pursuit to beauty is also higher and higher, and the aesthetic measure of eyelash is gradually taken into account by present women's friend, therefore, eyelash grafting receives people's favor gradually. Eyelash grafting is to stick false eyelash onto human true eyelash directly with eyelash grafting glue to make eye look bright and eyelash look long and dense, so as to change facial image. However, the currently used eyelash grafting glue has the problems of large smell, poor durability, short shelf life, complex production process, easy whitening and the like, and the popularization and the use of the eyelash grafting glue are hindered, so that a novel eyelash grafting glue is urgently needed to be developed. The alpha-cyanoacrylate compound is polymerized and cured when meeting water due to the characteristic of high anionic polymerization, so that certain adhesive force is generated on the surface of the adhesive material.
Therefore, in order to solve the above problems of the prior art, it is of great significance to develop an eyelash grafting gel based on an α -cyanoacrylate compound. The invention is therefore proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an odorless eyelash grafting glue and a preparation method and application thereof. The eyelash grafting glue disclosed by the invention has the advantages of long quality guarantee period and good flexibility, and has better durability after being used for grafting eyelash.
Description of the terms:
room temperature: having a meaning well known in the art, meaning 25. + -. 5 ℃.
The technical scheme of the invention is as follows:
an odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 85-95% of alpha-cyanoacrylate, 3-12% of thickening agent, 0.5-3% of color paste and 0.02-0.5% of accelerator.
According to the invention, the alpha-cyanoacrylate is one or the combination of more than two of alpha-cyanoacrylate n-butyl ester, alpha-cyanoacrylate ethoxyethyl ester or alpha-cyanoacrylate methoxyethyl ester; more preferably, the α -cyanoacrylate is methoxyethyl α -cyanoacrylate.
According to the invention, the thickener is preferably one or the combination of more than two of ethylene acrylate rubber, vinyl chloride-vinyl acetate copolymer or vinyl chloride-vinyl acetate terpolymer;
more preferably, the ethylene acrylate rubber is an ethylene copolymer with the mass content of methyl acrylate of 8-40%, and the weight average molecular weight of the ethylene acrylate rubber is 5-10 ten thousand; the vinyl chloride-vinyl acetate copolymer is a vinyl chloride-vinyl acetate polymer, wherein the mass content of vinyl chloride is 85.5-86.5%, and the weight average molecular weight of the vinyl chloride-vinyl acetate copolymer is 1-1.5 ten thousand; the vinyl chloride-vinyl acetate terpolymer is a terpolymer of vinyl chloride, vinyl acetate and maleic acid, and the weight average molecular weight of the vinyl chloride-vinyl acetate terpolymer is 1-5 ten thousand.
According to the optimization of the invention, the color paste is one or the combination of more than two of carbon black, CAB type black master batch and AS type black master batch; preferably, the color paste is AS type black master batch.
According to the optimization of the invention, the color paste can be used only after being further processed before being used; preferably, when the color paste is carbon black, the specific treatment method is as follows: drying the color paste at the high temperature of 90-120 ℃ for 0.5-2 h; when the color paste is CAB type black master or AS type black master, the specific treatment method is AS follows: drying the color paste at the high temperature of 90-120 ℃ for 0.5-2h, and then crushing and sieving the obtained dried color paste for later use; the crushing time is 3-5min, and the mesh number of the sieve for sieving is 80-200 meshes.
Preferably according to the invention, the accelerator is calixarene and/or polyethylene glycol diacrylate; preferably, the accelerator is polyethylene glycol diacrylate;
further preferably, the polyethylene glycol diacrylate is polyethylene glycol 600 diacrylate or polyethylene glycol 400 diacrylate; more preferably polyethylene glycol 600 diacrylate;
further preferably, the calixarene is p-tert-butylcalix [4] arene and/or oxacalixarene.
According to the invention, the preparation method of the odorless eyelash grafting glue comprises the following steps:
adding an accelerant and color paste into the alpha-cyanoacrylate under the stirring condition at room temperature, adding the thickening agent after uniformly stirring, and uniformly stirring and mixing to obtain the alpha-cyanoacrylate.
The application of the odorless eyelash grafting glue is used for grafting eyelash.
The invention has the following technical characteristics and beneficial effects:
1. the eyelash grafting glue provided by the invention uses a specific accelerant, so that the shelf life of the odorless eyelash grafting glue is longer, and particularly, the polyethylene glycol diacrylate is used as the accelerant, so that the shelf life of the odorless eyelash grafting glue can be as long as 7 months.
2. The eyelash grafting glue uses the specific thickening agent, the structure of the thickening agent is similar to that of the main body structure of alpha-cyanoacrylate, the compatibility is good, the eyelash grafting glue can be dissolved without heating, and the specific thickening agent enables the obtained eyelash grafting glue to have certain flexibility, so that the brittleness of a glue layer obtained after curing is reduced, and the durability of false eyelashes after bonding is improved.
3. The color paste used in the invention has good solubility in alpha-cyanoacrylate, does not need to be heated, does not contain other vulcanizing agents, and does not affect the shelf life of the eyelash grafting glue.
4. The eyelash grafting glue has the advantages that the eyelash grafting glue has high flexibility, high shearing strength, long quality guarantee period, no smell and difficult whitening under the combined action of all the components, can well realize grafting when being applied to eyelash grafting, and simultaneously has high durability.
5. The odorless eyelash grafting glue disclosed by the invention is simple in production process, can be produced by simple stirring, and is convenient for large-scale production and use.
Detailed Description
The present invention is further described below by way of specific examples to make the advantages and features of the present invention more readily understandable by those skilled in the art, and thus to define the scope of the present invention more clearly.
Meanwhile, the experimental methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
The ethylene acrylate rubber used in the examples was an ethylene copolymer having a methyl acrylate mass content of 20% and a weight average molecular weight of 8 ten thousand.
The mass contents of the components in the vinyl chloride-vinyl acetate terpolymer used in the examples are respectively as follows: 84% of vinyl chloride, 15% of vinyl acetate and 1% of maleic acid, and the weight-average molecular weight of the acrylic resin is 4.5 ten thousand.
The specific treatment method of carbon black used in the examples is as follows: the carbon black is dried for 1h at the temperature of 100 ℃.
The specific treatment method of the AS type black master batch used in the examples is AS follows: drying the AS type black master batch at 100 ℃ for 1 h; then crushing the dried color paste by a crusher for 4 min; screening the crushed color paste by a 100-mesh sieve for later use.
The treatment method of the PLA type black master batch used in the comparative example is the same AS that of the AS type black master batch.
Example 1
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85% of alpha-methoxy ethyl cyanoacrylate, 5% of ethylene acrylate rubber, 3% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 2
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85% of alpha-cyanoacrylate ethoxyethyl ester, 5% of ethylene acrylate rubber, 3% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-ethoxyethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 3
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85 percent of alpha-n-butyl cyanoacrylate, 5 percent of ethylene acrylate rubber, 3 percent of AS type black master batch and 0.15 percent of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-n-butyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 4
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 88.85 percent of alpha-methoxy ethyl cyanoacrylate, 8 percent of vinyl chloride-vinyl acetate terpolymer, 3 percent of AS type black master batch and 0.15 percent of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding vinyl chloride-vinyl acetate terpolymer, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 5
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 91.98 percent of alpha-methoxy ethyl cyanoacrylate, 5 percent of ethylene acrylate rubber, 3 percent of AS type black master batch and 0.02 percent of para-tert-butyl calix [4] arene.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding p-tert-butyl calix [4] arene and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 6
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 94.35 percent of alpha-methoxy ethyl cyanoacrylate, 5 percent of ethylene acrylate rubber, 0.5 percent of carbon black and 0.15 percent of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and carbon black under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Example 7
An odorless eyelash grafting glue comprises the following raw materials in percentage by mass: 87 percent of alpha-methoxy ethyl cyanoacrylate, 9.85 percent of ethylene acrylate rubber, 3 percent of AS type black master batch and 0.15 percent of polyethylene glycol 600 diacrylate.
The preparation method of the odorless eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
Comparative example 1
An eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85 percent of alpha-methoxy ethyl cyanoacrylate, 5 percent of ethylene acrylate rubber, 3 percent of AS type black master batch and 18-crown ether-60.15 percent.
The preparation method of the eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding 18-crown ether-6 and AS type black master batch under the condition of stirring, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
In this comparative example, crown ether 18-crown-6 was used as the accelerator in place of polyethylene glycol 600 diacrylate.
Comparative example 2
An eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85 percent of alpha-methoxy ethyl cyanoacrylate, 5 percent of ethylene acrylate rubber, 3 percent of AS type black master batch and 0.15 percent of polyoxypropylene glycol.
The preparation method of the eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyoxypropylene glycol and AS type black master batch under the condition of stirring, uniformly stirring at room temperature, adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
In this comparative example, the accelerator used a polyoxy polyol polyoxypropylene glycol instead of polyethylene glycol 600 diacrylate.
Comparative example 3
An eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85 percent of alpha-methoxy ethyl cyanoacrylate, 5 percent of polymethyl methacrylate, 3 percent of AS type black master batch and 0.15 percent of polyethylene glycol 600 diacrylate.
The preparation method of the eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the stirring condition, uniformly stirring at room temperature, adding polymethyl methacrylate, heating to 75 ℃ to dissolve, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
In this comparative example, polymethyl methacrylate was used as the thickener instead of ethylene acrylate rubber.
Comparative example 4
An eyelash grafting glue comprises the following raw materials in percentage by mass: 8.85% of alpha-ethyl cyanoacrylate, 83% of alpha-methoxyethyl cyanoacrylate, 5% of ethylene acrylate rubber, 3% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The preparation method of the eyelash grafting glue comprises the following steps:
adding alpha-ethyl cyanoacrylate and alpha-methoxyethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and AS type black master batch under the condition of stirring, uniformly stirring at room temperature, then adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
The α -cyanoacrylate in this comparative example was a combination of ethyl α -cyanoacrylate and methoxyethyl α -cyanoacrylate.
Comparative example 5
An eyelash grafting glue comprises the following raw materials in percentage by mass: 91.85% of alpha-methoxy ethyl cyanoacrylate, 5% of ethylene acrylate rubber, 3% of PLA type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The preparation method of the eyelash grafting glue comprises the following steps:
adding alpha-methoxy ethyl cyanoacrylate into a three-neck flask at room temperature, adding polyethylene glycol 600 diacrylate and PLA type black master batch under the stirring condition, uniformly stirring at room temperature, then adding ethylene acrylate rubber, dissolving at room temperature, and stirring for 0.5h to obtain the odorless eyelash grafting glue.
In the color paste in the comparative example, PLA type black master is used to replace AS type black master.
Comparative example 6
An eyelash grafting glue comprises the following raw materials in percentage by mass: 81.85% of alpha-methoxy ethyl cyanoacrylate, 15% of ethylene acrylate rubber, 3% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The eyelash grafting gel is prepared as described in example 1.
The proportion of the thickener ethylene acrylate rubber in this comparative example was too high.
Comparative example 7
An eyelash grafting glue comprises the following raw materials in percentage by mass: 95.85% of alpha-methoxy ethyl cyanoacrylate, 1% of ethylene acrylate rubber, 3% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The eyelash grafting gel is prepared as described in example 1.
The proportion of the thickener ethylene acrylate rubber in this comparative example was too low.
Comparative example 8
An eyelash grafting glue comprises the following raw materials in percentage by mass: 91% of alpha-methoxy ethyl cyanoacrylate, 5% of ethylene acrylate rubber, 3% of AS type black master batch and 1% of polyethylene glycol 600 diacrylate.
The eyelash grafting gel is prepared as described in example 1.
The proportion of accelerator polyethylene glycol 600 diacrylate in this comparative example was too high.
Comparative example 9
An eyelash grafting glue comprises the following raw materials in percentage by mass: 89.85% of alpha-methoxy ethyl cyanoacrylate, 5% of ethylene acrylate rubber, 5% of AS type black master batch and 0.15% of polyethylene glycol 600 diacrylate.
The eyelash grafting gel is prepared as described in example 1.
The proportion of the color paste AS type black master in the comparative example is too high.
Test examples
The eyelash graft glues prepared in examples 1 to 7 and comparative examples 1 to 9 were tested for flexibility, bonding speed, shear strength, and shelf life.
Test 1, flexibility test:
taking a piece of roll paper, rolling the roll paper into a rod shape, immersing one end of the roll paper into glue, performing a 90-degree bending test after the glue is completely cured, recording the bending times until the glue layer cured on the surface of the roll paper is broken, wherein the more the bending times, the better the flexibility, and the results are shown in table 1.
Test 2, bonding speed:
the adhesion test was performed on the false eyelashes under the test conditions of a temperature of 23 + -2 deg.C and a relative humidity of 60% + -10%, and the time from the start of the butt-joining to the time when the false eyelashes are pulled slightly to bring the true eyelashes is the adhesion rate, and the results are shown in Table 1.
Test 3, shear strength:
the test piece which accords with the GB/T7124 specification is transversely polished by using 200-240-mesh abrasive cloth (the polishing area cannot be less than the bonding area, the polishing area is cleaned by using an aqueous solution of washing powder or other washing agents, then the water is used for cleaning, then the acetone is used for cleaning, the test piece is placed in a silica gel dryer for standby application), then 2-3 drops of the test piece are dripped by using a 2g bottle on the bonding surface of a flat test piece, another test piece (the bonding area is 12.5mm multiplied by 25mm) is immediately attached, the test piece is fixed by a clamp, the test piece is tested after being placed for 24 hours under the test conditions that the temperature is 23 +/-2 ℃ and the relative humidity is 60 +/-10%, an electronic universal material testing machine is used for testing the shear strength, and the specific test method is as follows: the two ends of the test piece are respectively fixed at two joints of the testing machine by iron pins, the testing machine starts to move until the bonding parts of the two test pieces are pulled apart, and at the moment, the force used by the testing machine can be obtained by conversion of a computer. The results are shown in Table 1.
Test 4, shelf life test
(1) The prepared eyelash grafting glue is measured to be cured at 72 ℃, and the longer the curing time is, the longer the shelf life is.
(2) The prepared eyelash grafting glue was stored at room temperature and the time for the glue to cure was recorded. The results are shown in Table 1.
TABLE 1 data of performance test of eyelash graft gel prepared in examples 1 to 7 and comparative examples 1 to 9
As can be seen from table 1, the eyelash grafting glue prepared according to the embodiment of the invention has good flexibility, so that the brittleness of the glue layer after curing is reduced, and the durability of the adhered false eyelashes is improved; moreover, the eyelash grafting glue prepared in the example 1 has the best quality, and the bonding speed is slightly slower when the ethoxyethyl alpha-cyanoacrylate or n-butyl alpha-cyanoacrylate is used as a polymerization monomer in the examples 2 and 3 respectively, but the actual requirement is still met (the bonding speed is less than or equal to 4 s); example 4 the vinyl chloride-vinyl acetate copolymer is used as a thickening agent, and the shelf life of the product is slightly short; example 5 shelf life of eyelash grafting gel with p-tert-butylcalix [4] arene as promoter was slightly shorter than polyethylene glycol 600 diacrylate; in the embodiment 6, carbon black is used as color paste, although the layering phenomenon can occur before the glue is cured, the product appearance is influenced, but the aging time and the use of the glue are not influenced; and the performance of the eyelash grafting glue prepared in the embodiment is superior to that of the comparative product.
As can be seen from comparison of example 1, comparative example 1 and comparative example 2, the shelf life of the eyelash grafting glue is longest by using the polyethylene glycol 600 diacrylate as the accelerator; comparative example 1 the 18-crown ether-6 is used as an accelerant, and the shelf life of the obtained eyelash grafting glue is greatly shortened; comparative example 2 using polyoxypropylene glycol as an accelerator, the eyelash grafting glue obtained had a long shelf life but a slow adhesion rate, which did not satisfy the actual requirements (adhesion rate ≦ 4 s); and comparing example 1 with comparative example 8, it can be seen that the shelf life of the product is greatly shortened due to the excessively high proportion of the accelerator. Therefore, the kind and ratio of the accelerator are limited to the range of the present invention.
Compared with the comparative examples 1, 3, 6 and 7, the toughness of the eyelash grafting glue obtained in the example 1 is far better than that of the eyelash grafting glue obtained in the comparative example 3, which takes polymethyl methacrylate as the thickening agent, by using ethylene acrylate rubber as the thickening agent; in addition, as can be seen from comparison of example 1 and comparative examples 6-7, the performance of the product is affected by too high or too low proportion of the thickening agent, and the obtained eyelash grafting glue has high viscosity and low bonding speed; the proportion of the thickening agent is too low, and the obtained eyelash grafting glue has poor toughness, low durability and low shear strength.
As can be seen from the comparison of example 1 and comparative example 4, when part of the methoxyethyl α -cyanoacrylate is replaced by ethyl α -cyanoacrylate, the obtained eyelash grafting glue has great irritation to eyes, the eyes will tear during grafting, and the grafted part has a whitening phenomenon after bonding; comparing example 1 with comparative example 5, it can be seen that the shelf life of the eyelash grafting glue is greatly prolonged when AS type black master is used AS the color paste in example 1, and the shelf life of the obtained eyelash grafting glue is greatly shortened when PLA type black master is used AS the color paste in comparative example 5.
The above embodiments are merely exemplary in nature. It will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The odorless eyelash grafting glue is characterized by comprising the following raw materials in percentage by mass: 85-95% of alpha-cyanoacrylate, 3-12% of thickening agent, 0.5-3% of color paste and 0.02-0.5% of accelerator;
the alpha-cyanoacrylate is one or the combination of more than two of alpha-n-butyl cyanoacrylate, alpha-ethoxyethyl cyanoacrylate or alpha-methoxyethyl cyanoacrylate;
the thickening agent is one or the combination of more than two of ethylene acrylate rubber, vinyl chloride-vinyl acetate copolymer or vinyl chloride-vinyl acetate terpolymer;
the color paste is one or the combination of two of CAB type black master batch and AS type black master batch;
the accelerator is polyethylene glycol diacrylate.
2. The odorless eyelash grafting glue of claim 1, wherein the α -cyanoacrylate is methoxyethyl α -cyanoacrylate.
3. The odorless eyelash grafting glue according to claim 1, wherein the ethylene acrylate rubber is an ethylene copolymer with a mass content of methyl acrylate of 8-40%, and the weight average molecular weight of the ethylene acrylate rubber is 5-10 ten thousand; the vinyl chloride-vinyl acetate copolymer is a vinyl chloride-vinyl acetate polymer, wherein the mass content of vinyl chloride is 85.5-86.5%, and the weight average molecular weight of the vinyl chloride-vinyl acetate copolymer is 1-1.5 ten thousand; the vinyl chloride-vinyl acetate terpolymer is a terpolymer of vinyl chloride, vinyl acetate and maleic acid, and the weight average molecular weight of the vinyl chloride-vinyl acetate terpolymer is 1-5 ten thousand.
4. The odorless eyelash grafting glue according to claim 1, wherein the color paste is AS type black master.
5. The odorless eyelash grafting glue according to claim 1, wherein the color paste is further processed before use; the specific treatment method comprises the following steps: drying the color paste at the high temperature of 90-120 ℃ for 0.5-2h, and then crushing and sieving the obtained dried color paste for later use; the crushing time is 3-5min, and the mesh number of the sieve for sieving is 80-200 meshes.
6. The odorless eyelash grafting glue of claim 1, wherein the polyethylene glycol diacrylate is polyethylene glycol 600 diacrylate or polyethylene glycol 400 diacrylate.
7. The odorless eyelash grafting gel of claim 6, wherein the polyethylene glycol diacrylate is polyethylene glycol 600 diacrylate.
8. A method for preparing an eyelash graft glue without odor according to any one of claims 1 to 7, comprising the steps of:
adding an accelerant and color paste into the alpha-cyanoacrylate under the stirring condition at room temperature, adding the thickening agent after uniformly stirring, and uniformly stirring and mixing to obtain the alpha-cyanoacrylate.
9. Use of a non-odorous eyelash grafting gel according to any one of claims 1 to 7, for grafting eyelash.
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| US10196543B2 (en) * | 2011-03-31 | 2019-02-05 | Adhezion Biomedical, Llc | Fast bonding hair/eyelash extension adhesive compositions based on medical grade high viscosity cyanoacrylates |
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