CN110126161A - A kind of production technology of melamine dishware - Google Patents
A kind of production technology of melamine dishware Download PDFInfo
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- CN110126161A CN110126161A CN201910433972.2A CN201910433972A CN110126161A CN 110126161 A CN110126161 A CN 110126161A CN 201910433972 A CN201910433972 A CN 201910433972A CN 110126161 A CN110126161 A CN 110126161A
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- melamine
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- raw material
- preform
- dishware
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/003—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2061/00—Use of condensation polymers of aldehydes or ketones or derivatives thereof, as moulding material
- B29K2061/20—Aminoplasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/28—Tools, e.g. cutlery
- B29L2031/286—Cutlery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of production technologies of melamine dishware, specific production stage is as follows: molar ratio be 1:(2-3 by S1.) melamine crystals and formalin and the melamine crystals mass ratio silica gel for being 1:0.005 and the triethanolamine hybrid reaction for being 1:0.005 with melamine crystals mass ratio, resin sample is dried, and resin sample is ground into melamine resin powder；S2. 70-80 parts of melamine resin powder, 5-10 parts of modified starch, 4-8 parts of ramee, 4-8 parts of carbon fiber, 1-2 parts of nano aluminium oxide, 0.5-0.7 parts of toughener, 0.4-0.6 parts of stabilizer, 0.4-0.6 parts of natural pigment, 0.2-0.4 parts of antioxidant, 0.2-0.4 parts of curing agent, 0.2-0.4 parts of color fixing agent are stirred；S3. the pre-heat treatment is carried out to raw material, softens raw material；S4. mold preheats；S5. primary compacting；S6. laser labels；S7. light powder is uniformly sprayed on the surface of labeling preform, then secondary compacting is carried out to labeling preform；S8. flash is handled, and melamine dishware finished product is made.The present invention, which has, improves the flexible effect of melamine dishware.
Description
Technical field
The present invention relates to the technical fields of tableware production and processing, more particularly, to a kind of production technology of melamine dishware.
Background technique
Melamine dishware is also known as Ceramic-imitated tableware, is suppressed by melamine resin powder Hybrid Heating.The production of melamine dishware
Principle is to carry out Hybrid Heating to melamine raw material at a certain temperature, then apply certain pressure to melamine raw material, in temperature
Under the action of pressure, polycondensation reaction, and the curing molding after exhaust occur in plasticator for melamine raw material.Melamine dishware appearance
Fineness is widely used in catering trade.
Melamine resin powder is the polymer of melamine and formaldehyde resin, and melamine resin is a kind of thermosetting property
Resin, since its internal unique triazine ring rigid structure causes so that hardness is big after resin solidification, not flexible, brittleness is high
Its toughness and intensity are lower, and during long-time service, melamine dishware is easily cracked, cause its anti-aging property compared with
It is low, shorten the service life of melamine dishware.
Summary of the invention
The object of the present invention is to provide a kind of production technologies of melamine dishware, have and improve the flexible effect of melamine dishware
Fruit.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of production work of melamine dishware
Skill, specific production stage are as follows:
S1. prepared by melamine resin powder: molar ratio is the melamine crystals and formalin and melamine of 1:(2-3) by a.
The triethanolamine hybrid reaction that crystal quality is 1:0.005 than the silica gel for 1:0.005 and with melamine crystals mass ratio,
Reaction temperature is 80-120 DEG C, reaction time 1-3h, and resin sample is made；B. resin sample is dried, and will
Resin sample after drying is smashed and ground into melamine resin powder；
S2. raw material prepare: by 70-80 parts of melamine resin powder, 5-10 parts of modified starch, 4-8 parts of ramee, 4-8 parts of carbon fiber,
1-2 parts of nano aluminium oxide, 0.5-0.7 parts of toughener, 0.4-0.6 parts of stabilizer, 0.4-0.6 parts of natural pigment, antioxidant 0.2-
0.4 part, 0.2-0.4 parts of curing agent, 0.2-0.4 parts of color fixing agent be stirred, mixing time 25-35min, whipping temp 30
DEG C -50 DEG C, mixing speed 400-500r/min, so that raw material be made to be uniformly mixed；
S3. raw material preheating: carrying out the pre-heat treatment, preheating time 30-40s to raw material, and preheating temperature is 60 DEG C -80 DEG C, makes original
Material softening；
S4. mold preheats: preheating to the upper and lower mould of plasticator, upper mold preheating temperature is 150 DEG C -160 DEG C, lower die preheating
Temperature is 130 DEG C -140 DEG C；
S5. primary compacting: raw material is placed in lower die, upper mold extruding raw material, squeeze pressure 150-170kgf/cm are used2, squeeze
The pressure time is 10-15s, and the gas generated in mould due to extruding raw material is discharged in die sinking, and evacuation time 1-3s is made pre- with this
Finished product；
S6. laser labels: preform being placed in laser machine lower part, is carried out at labeling using the laser that laser machine issues to tableware
Labeling preform is made in reason；
S7. two compactings: light powder is uniformly sprayed on the surface of labeling preform, then secondary compacting is carried out to labeling preform, is squeezed
The pressure time is 5-10s, squeeze pressure 150-170kgf/cm2, evacuation time 0.6-0.8s, obtained melamine dishware preform；
S8. flash is handled: being polished the flash of tableware preform, bruting process is followed successively by corase grinding, fine grinding and polishing, system
Obtain melamine dishware finished product.
Three ethyl alcohol are added in formalin during the preparation of melamine resin powder by using above-mentioned technical proposal
Amine, so that reaction solution is in alkalescent, weakly alkaline environmental benefits occur in avoiding the product of melamine and formalin
Etherificate, to avoid the case where generating insoluble methylene tri poly cyanamid precipitating and leading to not glue generation；In melamine tree
During prepared by cosmetics, silica gel is added in reaction solution, silica gel has strong moisture pick-up properties, is used for melamine resin surface
Moisture suck；Modified starch is added during raw material preparation, modified starch is as the raw material for preparing dough, itself tool
Have good toughness, with mixed in melamine resin powder after, reduce the hardness of melamine resin powder, improve melamine resin powder
Flexibility, modified starch is as food grade materials, and ingredient safety, avoiding being added in melamine resin powder influences human health；?
Ramee is added during preparing in raw material, and ramee is one of strongest fiber of flexibility, to improve raw material
Flexibility avoids manufactured melamine dishware from being also easy to produce crackle since brittleness is larger；During raw material preparation, carbon fiber tool
There are excellent high temperature resistant, corrosion resistance, carbon fiber is mixed with melamine resin powder, is conducive to the heat-resisting quantity for improving raw material
Can, to improve the stability of melamine dishware finished product at high temperature；First raw material is preheated, softens raw material, consequently facilitating
Compression moulding is carried out to raw material；Before primary compacting, first mold is preheated, so that the raw material for making to pour into mold is rapid-result fastly
Type avoids raw material from generating bubble in pressing process；During primary compacting, breathing a mould processing is carried out, raw material is avoided
The surface of raw material is attached to from the gas of its Inner extrusion in pressing process and leads to raw material surface irregularity, to avoid
Influence the quality of raw material；Light powder is sprayed on the surface of preform, then carries out secondary compacting, so that light powder is attached to preform
Surface, so as to improve the smoothness on preform surface, to improve the quality of preform.
The present invention is further arranged to: the toughener in the S2 is polyvinyl acetate emulsion.
By using above-mentioned technical proposal, contain active group in polyvinyl acetate, in active group and melamine resin powder
Group chemically react, melamine resin powder is modified, to improve the elongation at break and impact strength of raw material,
Raw material is set to obtain good toughening effect；Since polyvinyl acetate emulsion is nontoxic odorless corrosion-free, poly-vinegar is added in the feed
Sour vac emulsion avoids the melamine dishware finished product prepared from influencing human health containing toxic, so select polyvinyl acetate
Lotion is used as toughener.
The present invention is further arranged to: the stabilizer in the S2 is calcium stearate-RE composite.
By using above-mentioned technical proposal, rare earth has high stability, especially big with calcium stearate compound tense stability
Amplitude improves, and calcium stearate-RE composite is by slowing down the reaction between raw material, keeping chemical balance and reducing raw material
Surface tension and the stability for improving raw material, so that the melamine dishware finished product prepared be avoided to decomposite trimerization under high temperature action
Cyanamide and formaldehyde gas and influence human health.
The present invention is further arranged to: the natural pigment in the S2 is the petal pigment extracted from petal.
By using above-mentioned technical proposal, since petal is rich in color, and dyeing effect is splendid, replaces people with petal pigment
Work pigment, not only increases the safety of pigment, and improves pigment to the dyeing effect of raw material；In addition, since petal has
It is savory, raw material is dyed using petal pigment, makes the melamine dishware finished product prepared that there is fragrance, improves melamine meal
The quality of tool.
The present invention is further arranged to: the antioxidant in the S2 is citric acid.
By using above-mentioned technical proposal, citric acid is the organic acid having compared with strong anti-oxidation, and citric acid passes through decomposition
Hydroperoxides in raw material, and the generation of free radical is reduced, to delay or inhibit the progress of raw material oxidation process, avoid close
Aging occurs during long-time service, generates slight crack for amine tableware finished product, extends the melamine dishware finished product prepared with this
Service life；Since citric acid has acidity, melamine resin powder is easier to react with other raw materials in acid condition, thus
Promote the reaction efficiency between raw material.
The present invention is further arranged to: the curing agent in the S2 is aminoethyl piperazine.
By using above-mentioned technical proposal, curing agent is for promoting raw material curing molding, and aminoethyl piperazine has well
Film performance, colour stability, adhesive property and resistance to chemical corrosion, promote raw material solidification while, improve
The fixing property of the toughness of raw material, the smoothness on its surface and natural pigment；And aminoethyl piperazine raw material is easy to get, it is at low cost
It is honest and clean, so aminoethyl piperazine is selected to use as curing agent.
In conclusion advantageous effects of the invention are as follows:
1. modified starch itself has good toughness, with mixed in melamine resin powder after, reduce the hard of melamine resin powder
Degree, improves the flexibility of melamine resin powder；
2. ramee is one of strongest fiber of flexibility, to improve the flexibility of raw material, manufactured melamine meal is avoided
Tool is also easy to produce crackle since brittleness is larger；
3. carbon fiber is mixed with melamine resin powder, be conducive to the high temperature resistance for improving raw material, to improve melamine dishware finished product
Stability at high temperature.
Detailed description of the invention
Fig. 1 is the production technological process of the present embodiment.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1 is a kind of production technology of melamine dishware disclosed by the invention, and specific production stage is as follows:
S1. prepared by melamine resin powder: the melamine crystals and formalin and melamine crystals that molar ratio is 1:2 by a.
Silica gel that mass ratio is 1:0.005 and the triethanolamine hybrid reaction for being 1:0.005 with melamine crystals mass ratio, reaction
Temperature is 100 DEG C, reaction time 2h, and resin sample is made；B. resin sample is dried, and by the tree after drying
Rouge sample comminution is ground into melamine resin powder；
S2. prepared by raw material: by 80 parts of melamine resin powder, 10 parts of modified starch, 6 parts of ramee, 6 parts of carbon fiber, nano oxidized
1 part of aluminium, 0.6 part of polyvinyl acetate emulsion, 0.5 part of calcium stearate-RE composite, 0.5 part of petal pigment, 0.3 part of citric acid
And 0.3 part of aminoethyl piperazine be stirred, mixing time 30min, whipping temp is 40 DEG C, mixing speed 400r/
Min, so that raw material be made to be uniformly mixed；
S3. raw material preheating: carrying out the pre-heat treatment, preheating time 30s to raw material, and preheating temperature is 60 DEG C, softens raw material；
S4. mold preheats: preheating to the upper and lower mould of plasticator, upper mold preheating temperature is 160 DEG C, and lower die preheating temperature is
140℃；
S5. primary compacting: raw material is placed in lower die, upper mold extruding raw material, squeeze pressure 160kgf/cm are used2, when extruding
Between be 10s, preform is made with this in the gas that is generated due to extruding raw material in die sinking discharge mould, evacuation time 2s；
S6. laser labels: preform being placed in laser machine lower part, is carried out at labeling using the laser that laser machine issues to tableware
Labeling preform is made in reason；
S7. two compactings: light powder is uniformly sprayed on the surface of labeling preform, then secondary compacting is carried out to labeling preform, is squeezed
The pressure time is 5s, squeeze pressure 160kgf/cm2, evacuation time 0.8s, obtained melamine dishware preform；
S8. flash is handled: being polished the flash of tableware preform, bruting process is followed successively by corase grinding, fine grinding and polishing, system
Obtain melamine dishware finished product.
Embodiment 2, difference from example 1 is that the melamine crystals and formaldehyde that are 1:2 by molar ratio in S1
Solution replaces with the melamine crystals and formalin that molar ratio is 1:2.5.
Embodiment 3, difference from example 1 is that the melamine crystals and formaldehyde that are 1:2 by molar ratio in S1
Solution replaces with the melamine crystals and formalin that molar ratio is 1:3.
Embodiment 4, difference from example 1 is that deleting the modified starch in S2.
Embodiment 5, difference from example 1 is that deleting the ramee in S2.
Embodiment 6, difference from example 1 is that deleting the modified starch and ramee in S2 simultaneously.
Embodiment 7, difference from example 1 is that deleting calcium stearate-RE composite in S2.
Comparative example 1, difference from example 1 is that calcium stearate-RE composite in S2 is replaced with tristearin
Sour calcium.
Comparative example 2, difference from example 1 is that calcium stearate-RE composite in S2 is replaced with rare earth.
In embodiment 1-3,100 parts of melamine dishware samples are taken in every group of embodiment, and 3 groups of samples are placed in identical environment
In, and the stability and content of free aldehyde of 3 groups of samples are measured and recorded, as shown in table 1.
The stability and content of free aldehyde of melamine dishware sample in table 1- embodiment 1-3
| Embodiment | 1 | 2 | 3 |
| Sample stability | It is higher | It is lower | It is high |
| Content of free aldehyde | It is less | It is few | It is more |
It can be obtained according to the comparison of the stability of melamine dishware sample and content of free aldehyde in embodiment 1-3 and such as be drawn a conclusion:
When the molar ratio of melamine crystals and formalin is 1:1, the stability of sample is lower, but content of free aldehyde in sample
It is few；When the molar ratio of melamine crystals and formalin is 1:2, the high stability of sample, and the aldehyde that dissociates in sample contains
It measures less；When the molar ratio of melamine crystals and formalin is 1:3, the stability of sample is high, but dissociates in sample
Aldehyde is more；When content of free aldehyde is more in sample, sample is easy to oxidize under the high temperature conditions, and the aldehyde that dissociates is easy that sample is precipitated
And human body is damaged；Result in consolidated statement 1 is it is found that embodiment 1 is most preferred embodiment.
In embodiment 1 and embodiment 4-6,100 parts of melamine dishware samples are taken in every group of embodiment, 4 groups of samples are placed in
In identical environment, and the Young's modulus of 4 groups of samples is measured and recorded, as shown in table 2.Young's modulus is description
The physical quantity of solid material resistance deformability.According to Hooke's law, in the elastic limit of object, stress and strain is at just
Than ratio is referred to as the Young's modulus of material, is only dependent upon the physical property of material itself.The size mark of Young's modulus material
The degree of rigidity of material, Young's modulus is bigger, and the rigidity of material is stronger, is less susceptible to that deformation occurs, therefore toughness is lower.It generallys use
Pulse excitation method measures the Young's modulus of solid material, and specific measurement method is to give sample arteries and veins by suitable external force
Accumulation signal is rushed, when a certain frequency in accumulation signal is consistent with the intrinsic frequency of sample, generates resonance, amplitude is most at this time
Greatly, be delayed longest, this wave is sent into instrument at electric signal by the transmitting and converting of test probe, measures the intrinsic frequency of sample,
Young's modulus is calculated by formula again.
The Young's modulus of table 2- embodiment 1 and embodiment 4-6 Chinese dinner service sample
| Embodiment | 1 | 4 | 5 | 6 |
| Young's modulus N/m2 | 82 | 99 | 93 | 112 |
Can obtain and such as draw a conclusion according to the Young's modulus comparison of melamine dishware sample in embodiment 4-6: when by ramee with
And after modified starch is all deleted, after the Vicat softening point of melamine dishware sample is compared to addition ramee or modified starch
It is obviously increased for the Vicat softening point of melamine dishware sample, illustrates ramee and modified starch respectively to raising melamine meal
The toughness for having sample plays positive acting；
It can be obtained according to the Young's modulus comparison of melamine dishware sample in embodiment 1, embodiment 4 and embodiment 5 and such as be drawn a conclusion: is single
The Young's modulus for solely deleting the melamine dishware sample after modified starch or ramee increases, and illustrates the toughness of melamine dishware sample
Decline illustrates that modified starch and ramee mix ingredient of the addition than individually addition one of both to raising melamine dishware sample
The effect of the toughness of product is more preferable, and according to numerical value in table 2 it can be extrapolated that modified starch for improve melamine dishware sample toughness work
With the effect slightly larger than ramee to melamine dishware sample is improved；It follows that embodiment 1 is most preferred embodiment.
In embodiment 1, embodiment 7 and comparative example 1-2,100 parts of melamine dishware samples are taken in every group of embodiment, by 4 groups
Sample is placed in identical environment, and the high temperature resistance of 4 groups of samples is measured and recorded, as shown in table 3.Sample
High temperature resistance indicate that the measurement method of Vicat softening point is by round or square sample test piece with 50 with Vicat softening point
DEG C/h heating rate heating, and be that 1 square millimeter of cylindrical needle is vertically pressed into test piece with sectional area, measure at 1 kilogram
Or the temperature under 5 kilograms of load when test piece reaches 1 mm depth, which is Vicat softening point.The number of Vicat softening point
Value is higher, illustrates that the high temperature resistance of sample strip is stronger.
The Vicat softening point of table 3- embodiment 1, embodiment 7 and comparative example 1-2 Chinese dinner service sample
| Embodiment 1 | Embodiment 7 | Comparative example 1 | Comparative example 2 | |
| Vicat softening point/DEG C | 191 | 154 | 179 | 172 |
It can be obtained such as according to the Vicat softening point comparison of melamine dishware sample in embodiment 1, embodiment 7 and comparative example 1-2
Draw a conclusion: the Vicat softening point of sample is above the Vicat softening point of sample in embodiment 7 in comparative example 1 and comparative example 2, says
Bright calcium stearate and rare earth all have positive acting to the high temperature resistance for improving melamine dishware finished product；Sample in embodiment 1
Vicat softening point be greater than the Vicat softening point of sample in comparative example 1 and comparative example 2, illustrate calcium stearate-rare earth is compound
Object is greater than individually addition calcium stearate or rare earth for improving the effect of the high temperature resistance of melamine dishware finished product；It follows that
Embodiment 1 is most preferred embodiment.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of production technology of melamine dishware, specific production stage are as follows:
S1. prepared by melamine resin powder: molar ratio is the melamine crystals and formalin and melamine of 1:(2-3) by a.
The triethanolamine hybrid reaction that crystal quality is 1:0.005 than the silica gel for 1:0.005 and with melamine crystals mass ratio,
Reaction temperature is 80-120 DEG C, reaction time 1-3h, and resin sample is made；B. resin sample is dried, and will
Resin sample after drying is smashed and ground into melamine resin powder；
S2. raw material prepare: by 70-80 parts of melamine resin powder, 5-10 parts of modified starch, 4-8 parts of ramee, 4-8 parts of carbon fiber,
1-2 parts of nano aluminium oxide, 0.5-0.7 parts of toughener, 0.4-0.6 parts of stabilizer, 0.4-0.6 parts of natural pigment, antioxidant 0.2-
0.4 part, 0.2-0.4 parts of curing agent, 0.2-0.4 parts of color fixing agent be stirred, mixing time 25-35min, whipping temp 30
DEG C -50 DEG C, mixing speed 400-500r/min, so that raw material be made to be uniformly mixed；
S3. raw material preheating: carrying out the pre-heat treatment, preheating time 30-40s to raw material, and preheating temperature is 60 DEG C -80 DEG C, makes original
Material softening；
S4. mold preheats: preheating to the upper and lower mould of plasticator, upper mold preheating temperature is 150 DEG C -160 DEG C, lower die preheating
Temperature is 130 DEG C -140 DEG C；
S5. primary compacting: raw material is placed in lower die, and using upper mold extruding raw material, squeeze pressure 150-170kgf/cm2 is squeezed
The pressure time is 10-15s, and the gas generated in mould due to extruding raw material is discharged in die sinking, and evacuation time 1-3s is made pre- with this
Finished product；
S6. laser labels: preform being placed in laser machine lower part, is carried out at labeling using the laser that laser machine issues to tableware
Labeling preform is made in reason；
S7. two compactings: light powder is uniformly sprayed on the surface of labeling preform, then secondary compacting is carried out to labeling preform, is squeezed
The pressure time is 5-10s, squeeze pressure 150-170kgf/cm2, evacuation time 0.6-0.8s, and melamine dishware preform is made；
S8. flash is handled: being polished the flash of tableware preform, bruting process is followed successively by corase grinding, fine grinding and polishing, system
Obtain melamine dishware finished product.
2. a kind of production technology of melamine dishware according to claim 1, it is characterised in that: the toughener in the S2 is
Polyvinyl acetate emulsion.
3. a kind of production technology of melamine dishware according to claim 1, it is characterised in that: the stabilizer in the S2 is
Calcium stearate-RE composite.
4. a kind of production technology of melamine dishware according to claim 1, it is characterised in that: the natural pigment in the S2
For the petal pigment extracted from petal.
5. a kind of production technology of melamine dishware according to claim 1, it is characterised in that: the antioxidant in the S2 is
Citric acid.
6. a kind of production technology of melamine dishware according to claim 1, it is characterised in that: the curing agent in the S2 is
Aminoethyl piperazine.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878896A (en) * | 2021-09-28 | 2022-01-04 | 佛山市至佳餐具有限公司 | Preparation method of melamine tableware with gradient color |
| CN117534938A (en) * | 2024-01-10 | 2024-02-09 | 广州简米餐具有限公司 | Melamine powder for manufacturing anti-fouling tableware and preparation method thereof |
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| CN113878896A (en) * | 2021-09-28 | 2022-01-04 | 佛山市至佳餐具有限公司 | Preparation method of melamine tableware with gradient color |
| CN117534938A (en) * | 2024-01-10 | 2024-02-09 | 广州简米餐具有限公司 | Melamine powder for manufacturing anti-fouling tableware and preparation method thereof |
| CN117534938B (en) * | 2024-01-10 | 2024-04-02 | 广州简米餐具有限公司 | Melamine powder for manufacturing anti-fouling tableware and preparation method thereof |
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