CN116656241A - Raw lacquer manufacturing process - Google Patents
Raw lacquer manufacturing process Download PDFInfo
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- CN116656241A CN116656241A CN202310805770.2A CN202310805770A CN116656241A CN 116656241 A CN116656241 A CN 116656241A CN 202310805770 A CN202310805770 A CN 202310805770A CN 116656241 A CN116656241 A CN 116656241A
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- lacquer
- raw lacquer
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- raw
- stirring
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- 239000004922 lacquer Substances 0.000 title claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 244000044283 Toxicodendron succedaneum Species 0.000 claims abstract description 40
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 239000000203 mixture Substances 0.000 claims abstract description 37
- 238000003756 stirring Methods 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000003973 paint Substances 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 206010020649 Hyperkeratosis Diseases 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims abstract description 7
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 230000009286 beneficial effect Effects 0.000 claims abstract description 5
- 238000005429 filling process Methods 0.000 claims abstract description 5
- 239000012258 stirred mixture Substances 0.000 claims abstract description 5
- 238000011049 filling Methods 0.000 claims abstract description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 66
- RMTXUPIIESNLPW-UHFFFAOYSA-N 1,2-dihydroxy-3-(pentadeca-8,11-dienyl)benzene Natural products CCCC=CCC=CCCCCCCCC1=CC=CC(O)=C1O RMTXUPIIESNLPW-UHFFFAOYSA-N 0.000 claims description 30
- QARRXYBJLBIVAK-UEMSJJPVSA-N 3-[(8e,11e)-pentadeca-8,11-dienyl]benzene-1,2-diol;3-[(8e,11e)-pentadeca-8,11,14-trienyl]benzene-1,2-diol;3-[(8e,11e,13e)-pentadeca-8,11,13-trienyl]benzene-1,2-diol;3-[(e)-pentadec-8-enyl]benzene-1,2-diol;3-pentadecylbenzene-1,2-diol Chemical compound CCCCCCCCCCCCCCCC1=CC=CC(O)=C1O.CCCCCC\C=C\CCCCCCCC1=CC=CC(O)=C1O.CCC\C=C\C\C=C\CCCCCCCC1=CC=CC(O)=C1O.C\C=C\C=C\C\C=C\CCCCCCCC1=CC=CC(O)=C1O.OC1=CC=CC(CCCCCCC\C=C\C\C=C\CC=C)=C1O QARRXYBJLBIVAK-UEMSJJPVSA-N 0.000 claims description 30
- IYROWZYPEIMDDN-UHFFFAOYSA-N 3-n-pentadec-8,11,13-trienyl catechol Natural products CC=CC=CCC=CCCCCCCCC1=CC=CC(O)=C1O IYROWZYPEIMDDN-UHFFFAOYSA-N 0.000 claims description 30
- DQTMTQZSOJMZSF-UHFFFAOYSA-N urushiol Natural products CCCCCCCCCCCCCCCC1=CC=CC(O)=C1O DQTMTQZSOJMZSF-UHFFFAOYSA-N 0.000 claims description 30
- 229920000180 alkyd Polymers 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- 239000004925 Acrylic resin Substances 0.000 claims description 13
- 229920000178 Acrylic resin Polymers 0.000 claims description 13
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 claims description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 10
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 7
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- 239000002932 luster Substances 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 5
- 239000002318 adhesion promoter Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000011050 natural pearl Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000012296 anti-solvent Substances 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 238000000053 physical method Methods 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000002195 synergetic effect Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D193/00—Coating compositions based on natural resins; Coating compositions based on derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/10—Tapping of tree-juices, e.g. caoutchouc, gum
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Paints Or Removers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the technical field of raw lacquer manufacture, in particular to a raw lacquer manufacture process, which comprises the following steps of S1: cutting raw lacquer, cutting a mouth on lacquer tree, and catching the white liquid flowing out of lacquer tree with container; s2: heat treatment of raw lacquer, S3: preparing a modifier of raw lacquer, and S4: mixing and stirring raw lacquer, namely mixing the mixture in the two containers of S2 and S3 together, uniformly stirring by using a stirring device, and carrying out fine filtration by using a fine filter screen after stirring; s5: barrelling the raw lacquer, filling the stirred mixture in the step S4 into the barrelling, and adding the surface active factors in the filling process; s6: and (5) sealing raw lacquer, and sealing the raw lacquer filled in the barrel. The invention not only increases the output of the paint liquid, but also is beneficial to the recovery of the callus of the lacquer tree and improves the important way of the utilization rate of raw lacquer, solves the problems of low glossiness, harsh film forming condition and poor adhesion to metal materials of the raw lacquer film, and also provides a wide space for the utilization of the natural raw lacquer.
Description
Technical Field
The invention relates to the technical field of raw lacquer manufacturing, in particular to a manufacturing process of raw lacquer.
Background
Raw lacquer, commonly known as "earth lacquer", also known as "national lacquer" or "lacquer", is a milky pure natural liquid coating which is harvested from lacquer tree, and after contacting air, it is gradually turned into brown colour, and its surface is dried and hardened for about 4 hr to produce a lacquer film. The raw lacquer has high economic value, has the characteristics of corrosion resistance, wear resistance, acid resistance, solvent resistance, heat resistance, good water resistance, good insulativity, rich luster and the like, and is a high-quality coating for military industry, industrial equipment, agricultural machinery, basic construction, handicraft articles, high-end furniture and the like.
At present, the existing staff continuously cuts lacquer on lacquer trees in a short time when picking lacquer, and the lacquer tree cuts are not provided with a processing function after lacquer cutting, so that the mode can lead to lower lacquer liquid output and is not beneficial to lacquer tree callus recovery; the existing raw lacquer needs a large amount of organic solvents during production, which causes environmental pollution, and meanwhile, other effective components in the raw lacquer are lost, so that the utilization rate of the raw lacquer is reduced, therefore, industrial production is difficult to realize in areas where raw lacquer resources are short, and meanwhile, the traditional raw lacquer can cause the problems of low glossiness of a paint film, harsh film forming conditions and poor adhesive force in the production process.
Disclosure of Invention
The invention aims to provide a raw lacquer manufacturing process, which aims to solve the problems of environmental pollution, low glossiness of a lacquer film, harsh film forming conditions and poor adhesive force caused by low lacquer liquid output of the traditional raw lacquer manufacturing process in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a manufacturing process of raw lacquer comprises the following steps:
s1: cutting raw lacquer, cutting a mouth with the length of 5 cm on a lacquer tree which grows neatly and vigorously, catching white liquid flowing out of the lacquer tree by a container, and then carrying out coarse filtration by a coarse filter screen;
s2: heat treatment of raw lacquer, namely collecting the collected white liquid into a large container, heating the white liquid to 220 ℃ by a heating and baking device, and slowly stirring the white liquid in the heating process;
s3: the preparation of a modifier of raw lacquer, namely weighing 0.25 percent of polyacrylate solution, 1.5 percent of adhesion promoter, 7 percent of aniline, 8 percent of butyl acetate, 8 percent of trimethylbenzene, 0.5 percent of blend and cyclohexanone according to weight percentage, adding the mixture into another container, crushing and heating;
s4: mixing and stirring raw lacquer, namely mixing the mixture in the two containers of S2 and S3 together, uniformly stirring by using a stirring device, and carrying out fine filtration by using a fine filter screen after stirring;
s5: barrelling the raw lacquer, filling the stirred mixture in the step S4 into the barrelling, and adding the surface active factors in the filling process;
s6: and (5) sealing raw lacquer, and sealing the raw lacquer filled in the barrel.
Preferably, the raw lacquer is cut repeatedly at a cutting interval of 7d, each lacquer tree is cut by 10 knives, the whole cutting period lasts for 70d, the single-knife raw lacquer yield of 5-7 knives is high, and the yield of each knife is more than 10 g.
Preferably, the lacquer tree lacquer cutting season usually starts from summer to cold dew stopping, the lacquer tree with neat and vigorous growth and young age is selected for the lacquer tree cutting, the lacquer tree is used for coating a callus anti-corrosion film on a lacquer tree incision after the lacquer tree is cut, and the lacquer tree callus recovery is not facilitated by continuous lacquer cutting with too short lacquer cutting interval time, so that the lacquer liquid output is lower.
Preferably, the heating and baking device is an ultraviolet lamp gun, 6-8 ultraviolet bulbs are arranged on each square meter of paint surface during baking, the distance between the ultraviolet bulbs and the paint surface is 30 cm, and the ultraviolet lamp gun used during baking is 250 watts.
Preferably, a 200-500 mesh filter screen is adopted in the coarse filtration in the step S1, and a 1000-1200 mesh filter screen is adopted in the fine filtration in the step S4.
Preferably, the blend is a urushiol formaldehyde polycondensate-alkyd resin blend or a urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend, and the urushiol formaldehyde polycondensate-alkyd resin blend is prepared by blending a urushiol formal polycondensate and alkyd resin through an interpenetrating polymer network method.
Preferably, the urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend refers to the mixed synthesis of urushiol formal resin and polyhydroxy acrylic resin through an interpenetrating polymer network method; interpenetrating polymer networks are unique polymer materials formed by intertwining two or more polymer networks through chemical and physical methods, and combine the excellent properties of each polymer due to synergistic effects.
Preferably, metal ions are added into the urushiol formaldehyde polycondensate-alkyd resin blend, and the formation of coordination bonds between the metal ions and oxygen atoms further increases the crosslinking density, so that the comprehensive performance of a paint film is improved. Due to the addition of FeCI3, the corrosion resistance and the anti-solvent performance of a paint film are obviously improved, and the method has the advantages that the excellent physical properties of the urushiol formal varnish are maintained, and the method has better alkali resistance due to the introduction of an aniline group with-NH 2; raw lacquer prepared from urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend has the hardness of 6H, the flexibility of 1mm and the adhesive force of 1 grade.
Preferably, the pearlescent dye is added into the modifier in an amount of 1%, and the pearlescent dye has the glittering effect of metal pigment, can generate soft luster of natural pearls, can generate multi-level reflection when being irradiated by sunlight, and can generate soft and attractive or colorful luster and color due to interaction of reflected light.
Preferably, the stirring device is a double-paddle stirrer, the rotating speed of the double-paddle stirrer is 70 revolutions per minute, the stirring temperature is room temperature, and the stirring time is 1-8 hours.
Compared with the prior art, the invention has the beneficial effects that: the manufacturing process of the raw lacquer is characterized in that the cutting mode of lacquer tree is changed, namely, cutting a mouth with the length of 5 cm on a young lacquer tree with neat and vigorous growth from summer to cold dew stop, repeatedly cutting a cutting mouth at a certain time interval, wherein the cutting interval is 7d, and each lacquer tree is cut by 10 cutters, so that the process increases the output of lacquer liquid and is beneficial to recovery of lacquer tree callus; the invention also prepares the raw lacquer by adding polyacrylate solution, adhesion promoter, aniline, butyl acetate, trimethylbenzene, blend and cyclohexanone into another container, crushing, heating and mixing with the collected white lacquer liquid, the process not only keeps the colloid dispersion system of the raw lacquer as an important way for keeping the original excellent performance of the raw lacquer and improving the utilization rate of the raw lacquer, but also solves the problems of low glossiness of the film of the raw lacquer, harsh film forming condition and poor adhesion to metal materials, and provides a wide space for the utilization of the natural raw lacquer.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
The structure of the manufacturing process of the raw lacquer provided by the invention is shown in figure 1, and the manufacturing process comprises the following steps:
s1: cutting raw lacquer, cutting a mouth with a length of 5 cm on a lacquer tree growing in order, catching white liquid flowing out of the lacquer tree by a container, and then carrying out coarse filtration by using a coarse filter screen, wherein the coarse filtration adopts a filter screen with 200-500 meshes; the method comprises the steps of repeatedly cutting a cutting gap at a certain time, wherein the cutting gap period is 7d, each lacquer tree is cut by 10 knives, the duration of the whole cutting period is 70d, the single-knife raw lacquer yield of 5-7 times is higher, the yield of each time is more than 10g, lacquer tree cutting seasons usually stop from summer to cold dew, the lacquer tree with vigorous growth and young age is selected for cutting, a callus anti-corrosion film is used for coating on the lacquer tree cut after the lacquer tree is cut, and the lacquer tree callus recovery is not facilitated by continuous lacquer cutting with too short cutting gap time, so that the yield of lacquer liquid is low.
S2: heat treatment of raw lacquer, namely collecting the collected white liquid into a large container, heating the white liquid to 220 ℃ by a heating and baking device, and slowly stirring the white liquid in the heating process; wherein, the heating and baking device is an ultraviolet lamp gun, 6-8 ultraviolet bulbs are arranged on each square meter of paint surface during baking, the distance between the ultraviolet bulbs and the paint surface is 30 cm, and the ultraviolet lamp gun used during baking is 250 watts.
S3: the preparation of a modifier of raw lacquer, namely weighing 0.25 percent of polyacrylate solution, 1.5 percent of adhesion promoter, 7 percent of aniline, 8 percent of butyl acetate, 8 percent of trimethylbenzene, 0.5 percent of blend and cyclohexanone according to weight percentage, adding the mixture into another container, crushing and heating; the blend is a urushiol formaldehyde polycondensate-alkyd resin blend or a urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend, wherein the urushiol formaldehyde polycondensate-alkyd resin blend is prepared by blending a urushiol formal polycondensate and alkyd resin through an interpenetrating polymer network method, and the urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend is prepared by blending a urushiol formal resin and polyhydroxy acrylic resin through an interpenetrating polymer network method; interpenetrating polymer networks are unique polymer materials formed by intertwining two or more polymer networks through chemical and physical methods, and combine the excellent properties of each polymer due to synergistic effects.
Specifically, metal ions are added into the urushiol formaldehyde polycondensate-alkyd resin blend, and the formation of coordination bonds between the metal ions and oxygen atoms further increases the crosslinking density, so that the comprehensive performance of a paint film is improved. Due to the addition of FeCI3, the corrosion resistance and the anti-solvent performance of a paint film are obviously improved, and the method has the advantages that the excellent physical properties of the urushiol formal varnish are maintained, and the method has better alkali resistance due to the introduction of an aniline group with-NH 2; raw lacquer prepared from urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend has the hardness of 6H, the flexibility of 1mm and the adhesive force of 1 grade; meanwhile, 1% of pearlescent dye is added into the modifier, and the pearlescent dye has the glittering effect of metal pigment, can generate soft color of natural pearl, can generate multi-level reflection when irradiated by sunlight, and can display soft and attractive or colorful luster and color due to interaction of reflected light.
S4: mixing and stirring raw lacquer, namely mixing the mixture in the two containers of S2 and S3 together, uniformly stirring by using a stirring device, and then carrying out fine filtration by using a fine filter screen, wherein a 1000-1200 mesh filter screen is adopted during fine filtration, the stirring device is a double-paddle stirrer, the rotating speed of the double-paddle stirrer is 70 revolutions per minute, the stirring temperature is room temperature, and the stirring time is 1-8 hours.
S5: and (3) barrelling the raw lacquer, filling the stirred mixture in the step S4 into the barrelling, and adding the surfactant in the filling process.
S6: and (5) sealing raw lacquer, and sealing the raw lacquer filled in the barrel.
The method comprises the following steps: firstly, cutting a mouth with the length of 5 cm from summer to cold dew stop on young lacquer trees which grow neatly and vigorously, repeatedly cutting a cutting mouth at intervals of 7d, cutting 10 knives of each lacquer tree, then receiving white liquid flowing out of the lacquer tree by a container, and then carrying out coarse filtration by using a filter screen with 200-500 meshes; then, the collected white liquid is concentrated into a large container and heated to 220 ℃ by an ultraviolet lamp, 6-8 ultraviolet bulbs are arranged on each square meter of paint surface during baking, the distance between the ultraviolet bulbs and the paint surface is 30 cm, and the ultraviolet lamp adopted during baking is 250 watts.
Then 0.25 percent of polyacrylate solution, 1.5 percent of adhesion promoter, 7 percent of aniline, 8 percent of butyl acetate, 8 percent of trimethylbenzene, or urushiol formaldehyde polycondensate-alkyd resin blend or urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend and 0.5 percent of cyclohexanone are weighed according to the weight percentage, added into another container, smashed and heated; according to the use requirement, metal ions can be added into the urushiol formaldehyde polycondensate-alkyd resin blend to improve the comprehensive performance of a paint film, and pearlescent dye 1% can be added to ensure that the urushiol formaldehyde polycondensate-alkyd resin blend has the glittering effect of metal pigment, can generate soft color of natural pearls, can generate multi-level reflection when being irradiated by sunlight, and can display soft and attractive or colorful luster and color due to interaction of reflected light.
And then, mixing the mixtures in the two containers together, uniformly stirring by using a double-paddle stirrer, wherein the rotating speed of the double-paddle stirrer is 70 revolutions per minute, the stirring temperature is room temperature, the stirring time is 1-8h, and then, fine filtering by using a filter screen with 1000-1200 meshes.
Finally, the stirred mixture is filled into a barrel, the surfactant is added during the filling process, and the raw lacquer filled into the barrel is sealed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The manufacturing process of the raw lacquer is characterized by comprising the following steps of:
s1: cutting raw lacquer, cutting a mouth with the length of 5 cm on a lacquer tree which grows neatly and vigorously, catching white liquid flowing out of the lacquer tree by a container, and then carrying out coarse filtration by a coarse filter screen;
s2: heat treatment of raw lacquer, namely collecting the collected white liquid into a large container, heating the white liquid to 220 ℃ by a heating and baking device, and slowly stirring the white liquid in the heating process;
s3: the preparation of a modifier of raw lacquer, namely weighing 0.25 percent of polyacrylate solution, 1.5 percent of adhesion promoter, 7 percent of aniline, 8 percent of butyl acetate, 8 percent of trimethylbenzene, 0.5 percent of blend and cyclohexanone according to weight percentage, adding the mixture into another container, crushing and heating;
s4: mixing and stirring raw lacquer, namely mixing the mixture in the two containers of S2 and S3 together, uniformly stirring by using a stirring device, and carrying out fine filtration by using a fine filter screen after stirring;
s5: barrelling the raw lacquer, filling the stirred mixture in the step S4 into the barrelling, and adding the surface active factors in the filling process;
s6: and (5) sealing raw lacquer, and sealing the raw lacquer filled in the barrel.
2. The process for producing raw lacquer according to claim 1, wherein: in S1, the raw lacquer is repeatedly cut at a cutting gap for a certain time, the cutting gap period is 7d, each lacquer tree is cut by 10 knives, the duration of the whole cutting period is 70d, the single-knife raw lacquer yield of 5-7 knives is high, and the yield of each knife is more than 10 g.
3. A process for producing a raw lacquer according to claim 2, characterized in that: the lacquer tree lacquer cutting season is usually from summer to cold dew stopping, lacquer trees with neat and vigorous growth and young ages are selected for cutting, after lacquer tree cutting, a callus anti-corrosion film is used for coating on lacquer tree cuts, lacquer cutting interval time is too short, lacquer cutting is not beneficial to lacquer tree callus recovery, and accordingly lacquer liquid output is low.
4. The process for producing raw lacquer according to claim 1, wherein: in S2, the heating and baking device is an ultraviolet lamp gun, 6-8 ultraviolet bulbs are arranged on each square meter of paint surface during baking, the distance between the ultraviolet bulbs and the paint surface is 30 cm, and the ultraviolet lamp gun used during baking is 250 watts.
5. The process for producing raw lacquer according to claim 1, wherein: a200-500-mesh filter screen is adopted in the coarse filtration in the step S1, and a 1000-1200-mesh filter screen is adopted in the fine filtration in the step S4.
6. The process for producing raw lacquer according to claim 1, wherein: in S3, the blend is a urushiol formaldehyde polycondensate-alkyd resin blend or a urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend, and the urushiol formaldehyde polycondensate-alkyd resin blend is prepared by blending a urushiol formal polycondensate and alkyd resin through an interpenetrating polymer network method.
7. The process for producing raw lacquer according to claim 6, wherein: the urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend refers to the mixed synthesis of urushiol formal resin and polyhydroxy acrylic resin through an interpenetrating polymer network method; interpenetrating polymer networks are unique polymer materials formed by intertwining two or more polymer networks through chemical and physical methods, and combine the excellent properties of each polymer due to synergistic effects.
8. The process for producing raw lacquer according to claim 7, wherein: the urushiol formaldehyde polycondensate-alkyd resin blend is added with metal ions, and the formation of coordination bonds between the metal ions and oxygen atoms further increases the crosslinking density, so that the comprehensive performance of a paint film is improved. Due to the addition of FeCI3, the corrosion resistance and the anti-solvent performance of a paint film are obviously improved, and the raw paint prepared from the urushiol formaldehyde polycondensate-polyhydroxy acrylic resin blend has the hardness of 6H, the flexibility of 1mm and the adhesive force of 1 level.
9. The process for producing raw lacquer according to claim 8, wherein: in S3, the pearlescent dye is added into the modifier, wherein the pearlescent dye has the glittering effect of metal pigment, can generate soft color of natural pearl, can generate multi-level reflection when being irradiated by sunlight, and can display soft and attractive or colorful luster and color due to interaction of reflected light.
10. The process for producing raw lacquer according to claim 1, wherein: in S4, the stirring device is a double-paddle stirrer, the rotating speed of the double-paddle stirrer is 70 revolutions per minute, the stirring temperature is room temperature, and the stirring time is 1-8h.
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| CN202310805770.2A CN116656241A (en) | 2023-07-03 | 2023-07-03 | Raw lacquer manufacturing process |
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| CN202310805770.2A CN116656241A (en) | 2023-07-03 | 2023-07-03 | Raw lacquer manufacturing process |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618908A (en) * | 2004-10-11 | 2005-05-25 | 周建华 | Production method of raw Chinese lacquer |
| CN107964356A (en) * | 2017-09-21 | 2018-04-27 | 杨慧 | A kind of raw lacquer production method for furniture |
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- 2023-07-03 CN CN202310805770.2A patent/CN116656241A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618908A (en) * | 2004-10-11 | 2005-05-25 | 周建华 | Production method of raw Chinese lacquer |
| CN107964356A (en) * | 2017-09-21 | 2018-04-27 | 杨慧 | A kind of raw lacquer production method for furniture |
Non-Patent Citations (4)
| Title |
|---|
| 刘建桂, 林金火, 陈钦慧, 徐艳莲, 肖鹏: "漆酚铁聚合物-醇酸树脂互穿聚合物网络涂料的研究", 林产化学与工业, no. 02, 30 June 2005 (2005-06-30), pages 1 * |
| 刘建桂, 林金火, 陈钦慧, 徐艳莲, 肖鹏: "漆酚铁聚合物-醇酸树脂互穿聚合物网络涂料的研究", 林产化学与工业, no. 02, pages 1 * |
| 吕虎强;李艳;刘帅;李东旭;张飞龙;: "生漆的生物学活性与结构修饰研究进展", 化学研究与应用, no. 06, 15 June 2020 (2020-06-15), pages 899 * |
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