CN111440039A - Novel indoor and outdoor cold firework formula and preparation process thereof - Google Patents
Novel indoor and outdoor cold firework formula and preparation process thereof Download PDFInfo
- Publication number
- CN111440039A CN111440039A CN202010461975.XA CN202010461975A CN111440039A CN 111440039 A CN111440039 A CN 111440039A CN 202010461975 A CN202010461975 A CN 202010461975A CN 111440039 A CN111440039 A CN 111440039A
- Authority
- CN
- China
- Prior art keywords
- firework
- novel indoor
- cold firework
- outdoor cold
- fireworks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/06—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being an inorganic oxygen-halogen salt
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/02—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with an organic non-explosive or an organic non-thermic component
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound
Abstract
A novel indoor and outdoor cold firework formula and a preparation process thereof comprise the following components in percentage by weight: 20-70% of energetic substance, 10-40% of oxidant, 10-40% of one or more metal powders, 0-20% of flame reaction material and 0-5% of adhesive, wherein all percentages are mass percentages; the preparation process comprises the following steps: mixing materials, sieving particles, charging fireworks and packaging barrels. Compared with the prior art, the firework composition has the characteristics of wide color gamut (covering the wavelength range of 400-760 nm), multiple colors, full width at half maximum of electromagnetic wavelength, high contrast of burning patterns and the like by adding simple substances, compounds and mixtures which can generate flame color reaction when the firework composition is burnt, and meanwhile, the cost is reasonable, and the firework composition can be widely accepted by consumers when used for civil entertainment firework products or for various celebrations, parties and other festivals.
Description
Technical Field
The invention relates to the technical field of fireworks and crackers, in particular to a novel indoor and outdoor cold firework formula and a preparation process thereof.
Background
The light color, heat and power generated by the traditional spraying fireworks mainly come from the combustion of black powder. The black powder is formed by mixing potassium nitrate (or potassium perchlorate), charcoal and sulfur, and potassium sulfide, nitric oxide, carbon monoxide and other substances polluting the air are generated after the black powder is combusted, so that the black powder is not suitable for being set off indoors, and the set-off effect outdoors is greatly reduced due to the shielding and pollution of smoke. In order to solve the problem that the traditional spray fireworks generate smoke when burning, for example, the invention with the patent publication number of CN1059400A discloses a firework agent formula which is formed by mixing nitrocellulose, magnesium-aluminum-cerium alloy, metal titanium and shellac according to a certain proportion, and realizes smokeless fireworks which have no smoke and the characteristics of fireworks.
The color of the combustion light of the similar formula in the air depends on the combustion color of the magnesium-aluminum-cerium alloy and the metal titanium, but the actual combustion has limited colors such as gold, white and the like, so that the artistic expression of the cold firework product is greatly limited. In order to solve the problem of single color of cold light fireworks, patent publication No. CN103121886A adds photoluminescent material in the fireworks formula to produce colorful cold fireworks chemical, which can produce rich colors. However, photoluminescent materials, including rare earth luminescent pigments, semiconductor luminescent materials, etc., are expensive and far higher than the price of common materials of civil fireworks, so that the photoluminescent materials are difficult to be widely popularized in the market.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel indoor and outdoor cold firework formula and a preparation process thereof aiming at the problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a novel indoor and outdoor cold firework formula comprises the following components in percentage by weight:
an energetic substance (20-70 percent),
oxidant (10% -40%),
one or more metal powders (10-40%),
flame reaction material (0-20%),
adhesive (0-5%),
all percentages are by mass.
Preferably, the energy-containing substance is an energy-containing compound formed by nitric acid esterification of plant fibers, and the energy-containing compound is composed of (C)6H10O5)、(C6H9(NO2)O5)、(C6H8(NO2)2O5)、(C6H7(NO2)3O5) The four basic rings are mixed, the nitrogen content depends on the mixing proportion of the four basic rings, and the nitrogen content of the nitrocellulose formed after the esterification of the plant fiber is between 11.0 and 12.5 percent.
Preferably, the oxidant comprises ammonium perchlorate, potassium nitrate, ammonium nitrate and potassium chlorate.
Preferably, the metal powder comprises one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
Preferably, the flame reaction material is a mixture of metal powder including one or more of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium and zinc, and the flame reaction material further includes a compound of the metal powder.
Preferably, the adhesive comprises silicates, polyvinyl formaldehydes, polyvinyl acetate and co-emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates, waterborne pressure sensitive adhesives.
Preferably, the cold fireworks comprise spraying flower fountain cold fireworks and handheld spraying flower cold fireworks.
Preferably, the preparation process comprises the following steps:
(1) mixing: uniformly mixing an energy-containing substance (20% -70%), an oxidant (10% -40%), one or more metal powders (10% -40%), a flame reaction material (0% -20%) and a binder (0% -5%);
(2) sieving: removing particles larger than 60 meshes;
(3) charging: filling the uniformly mixed cold firework explosive agent into an empty cylinder of a spraying flower fountain cold firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the cylinder;
(4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Compared with the prior art, the novel indoor and outdoor cold firework formula and the preparation process thereof have the beneficial effects that: by adding simple substances, compounds and mixtures which can generate flame reaction when the firework is burnt, the firework has the characteristics of wide color gamut (covering the wavelength range of 400nm-760 nm), more colors, full width at half maximum of electromagnetic wavelength, high contrast of burning patterns and the like, and simultaneously, the cost is reasonable, and the firework can be widely accepted by consumers when used for civil entertainment firework products or used for various celebrations, parties and other festivals.
Detailed Description
The present invention will be described in further detail with reference to examples.
The invention discloses a novel indoor and outdoor cold firework formula which is a product formed by fully mixing the following substances according to a certain proportion, and specifically comprises the following components: 20 to 70 percent of energetic substance, 10 to 40 percent of oxidant, 10 to 40 percent of one or more metal powders, 0 to 20 percent of flame reaction material and 0 to 5 percent of adhesive, wherein all percentages are mass percent.
The energy-containing substance is a compound which provides light, heat and power for the combustion of fireworks and stores chemical energy, and can also be used as a reducing agent in fireworks gunpowder, such as an energy-containing compound formed by esterifying plant fibers by nitric acid, such as nitrocellulose, nitrocotton, nitrobamboo and the like. The compound is composed of (C)6H10O5)、(C6H9(NO2)O5)、(C6H8(NO2)2O5)、(C6H7(NO2)3O5) The nitrogen content of the macromolecule formed by mixing the four basic rings depends on the mixing ratio of the four basic rings and can be between 0 and 14.14 percent in theory, and the nitrogen content of the nitrocellulose used in the entertainment firework product is between 11.0 and 12.5 percent in practice.
The oxidant is used to provide oxygen to the firework combustion to allow the overall chemical reaction to reach or approach zero oxygen equilibrium. After the same weight of firework powder is burnt, the formula reaching or approaching zero oxygen balance can release more heat, generate gas with larger volume and momentum, and the brightness of flame is also higher. Oxidizing agents useful in the present invention for cold fireworks include, but are not limited to: ammonium perchlorate, potassium nitrate, ammonium nitrate and potassium chlorate.
The metal powder plays two roles in the combustion process: (1) the light is bright and bright after burning, so that the light color effect required by fireworks is achieved; (2) the gas-liquid separation device has the functions of a reducing agent, performs oxidation-reduction reaction with an oxidizing agent, releases heat, expands the volume of the released gas, and generates kinetic energy for actions such as spraying decoration, lifting off and the like. The metal powders for cold fireworks in the present invention include, but are not limited to: one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
The flame reaction material sample is usually in the form of powder, and plays a role in making the flame more colorful, and the principle is that each element has its own spectrum when reacting. Metals that can specifically participate in the flame reaction include, but are not limited to: barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium, and zinc.
In addition, compounds containing the above metals, such as cryolite, sodium fluoride, sodium fluorosilicate, sodium bicarbonate, sodium oxalate, borax, strontium carbonate, strontium oxalate, strontium nitrate, strontium sulfate, barium nitrate, barium carbonate, barium oxide, barium chloride, barium perchlorate, copper oxide, basic copper carbonate (malachite), and cuprous sulfide, can participate in the flame reaction. The flame reaction material can also be mixed and configured to generate new colors by mixing two or more colors, such as a color scheme of red and blue to generate purple.
The adhesive is an auxiliary material, and has the functions of fixing the relative positions of various substance particles, preventing relative displacement in the processes of transportation and storage, and ensuring that the uniformity of the medicament during burning is the same as that during production. Specific binders include, but are not limited to: silicates, polyvinyl formaldehydes, polyvinyl acetate and copolymer emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates, water-based pressure-sensitive adhesives, and the like.
Example 1: cold fireworks with blue flame and golden spray fountain
The formula is as follows: 20% of ammonium perchlorate, 50% of nitrocellulose (average nitrogen content 11.8%), 20% of 100-mesh titanium powder, 5% of 100-mesh copper oxide powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 2: cold fireworks with blue flame, golden large grain spraying fountain
The formula is as follows: 20% of ammonium perchlorate, 50% of nitrocellulose (average nitrogen content 11.8%), 20% of 60-mesh titanium powder, 5% of 100-mesh copper oxide powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 60 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 3: yellow flame and golden spray fountain cold fireworks
The formula is as follows: 20% of ammonium perchlorate, 50% of nitrocellulose (the average nitrogen content is 11.8%), 20% of 100-mesh titanium powder, 5% of 100-mesh sodium chloride powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 4: fountain cold fireworks with bright yellow to white flame and golden spray
The formula is as follows: 20% of ammonium perchlorate, 55% of nitrocellulose (the average nitrogen content is 11.8%), 20% of 100-mesh titanium powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 5: fountain cold firework with bright yellow to white flame and bright gold to silver spraying decoration
The formula is as follows: 20% of ammonium perchlorate, 55% of nitrocellulose (the average nitrogen content is 11.8%), 10% of 100-mesh magnesium powder, 10% of 100-mesh aluminum powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 6: outdoor slight smoke blue flame, bright gold color to silver color spraying flower fountain cold firework
The formula is as follows: 20% of potassium perchlorate, 50% of nitrocellulose (the average nitrogen content is 11.8%), 10% of 100-mesh magnesium powder, 10% of 100-mesh aluminum powder, 5% of 100-mesh copper oxide powder and 5% of fluororubber; are all in mass percent. The total medicine loading can be determined according to requirements, and 20 g of the total medicine loading can be set off for about 20 to 40 seconds according to different sizes of the openings of the setting off cylinders.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Example 7: hand-held spray decoration with bright yellow to white flame and golden color
The formula is as follows: 25% of ammonium perchlorate, 55% of nitrocellulose (the average nitrogen content is 11.8%), and 20% of 100-mesh titanium powder; are all in mass percent. Because of the hand-held type spraying decoration, the charge is smaller, between 2 g and 15 g, the opening of the setting off cylinder is larger, and the diameter of the setting off cylinder is the same, thereby ensuring the setting off safety, namely, the spraying decoration does not have overlarge momentum, and simultaneously ensuring the setting off time to be longest, and the 10 g total charge can be set off for about 30 to 40 seconds.
The preparation process comprises the following steps: (1) mixing: mixing the above materials uniformly; (2) sieving: removing particles larger than 100 meshes; (3) charging: filling the uniformly mixed blue cold firework explosive into a hollow cylinder of a fountain firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the explosive; (4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Compared with the prior art, the novel indoor and outdoor cold firework formula and the preparation process thereof can generate different colors of setting-off effects according to different prepared flame color reaction materials, such as various bright single colors of blue, green, yellow, orange, red and the like, and mixed colors of purple, blue-green, yellow-green, white and the like, thereby improving the artistic expressive force of fireworks on the premise of not improving the raw materials and the production cost, and leading fireworks products to explore more application scenes.
Finally, it should be noted that: the above examples are merely illustrative of the technical solutions of the present invention, and not limitative thereof; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A novel indoor and outdoor cold firework formula is characterized by comprising the following components in percentage by weight:
an energetic substance (20-70 percent),
oxidant (10% -40%),
one or more metal powders (10-40%),
flame reaction material (0-20%),
adhesive (0-5%),
all percentages are by mass.
2. The novel indoor and outdoor cold firework formula according to claim 1, wherein the energetic compound is an energetic compound formed by nitric acid esterification of plant fibers, and the energetic compound is represented by (C)6H10O5)、(C6H9(NO2)O5)、(C6H8(NO2)2O5)、(C6H7(NO2)3O5) The four basic rings being mixed and the nitrogen content being dependent on the four basic ringsThe mixing proportion is that the nitrogen content of the nitrocellulose formed after the esterification of the plant fiber is between 11.0 percent and 12.5 percent.
3. The novel indoor and outdoor cold firework formulation of claim 1, wherein said oxidizer comprises ammonium perchlorate, potassium nitrate, ammonium nitrate, potassium chlorate.
4. The novel indoor and outdoor cold firework formula according to claim 1, wherein the metal powder comprises one or a mixture of any more of titanium, iron, zirconium, aluminum, chromium and nickel in any proportion.
5. The novel indoor and outdoor cold firework formula according to claim 1, wherein the flame reaction material is metal powder comprising one or a mixture of any more of barium, calcium, cesium, copper, iron, indium, potassium, lithium, manganese, molybdenum, sodium, rubidium, antimony, strontium and zinc, and further comprises a compound of the metal powder.
6. The novel indoor and outdoor cold firework formulation of claim 1, wherein said adhesive comprises silicates, polyvinyl formaldehydes, polyvinyl acetates and co-emulsions, solvent-based rubbers, resins, EVA hot-melt types, cyanoacrylates, waterborne pressure sensitive adhesives.
7. A novel indoor and outdoor cold firework formulation as claimed in claim 1 wherein said cold fireworks comprise gunning fountain cold fireworks and hand-held gunning cold fireworks.
8. The process for preparing a novel indoor and outdoor cold firework as claimed in any one of claims 1 to 7, wherein the process comprises the following steps:
(1) mixing: uniformly mixing an energy-containing substance (20% -70%), an oxidant (10% -40%), one or more metal powders (10% -40%), a flame reaction material (0% -20%) and a binder (0% -5%);
(2) sieving: removing particles larger than 60 meshes;
(3) charging: filling the uniformly mixed cold firework explosive agent into an empty cylinder of a spraying flower fountain cold firework product, and tamping until the pressure is 1 MPa, so as to ensure that no gap exists in the cylinder;
(4) packaging: the opening of the charging end is sealed by soil or a fixing agent, and then a lead is inserted into the opening of the spraying end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461975.XA CN111440039A (en) | 2020-05-27 | 2020-05-27 | Novel indoor and outdoor cold firework formula and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010461975.XA CN111440039A (en) | 2020-05-27 | 2020-05-27 | Novel indoor and outdoor cold firework formula and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111440039A true CN111440039A (en) | 2020-07-24 |
Family
ID=71657804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010461975.XA Pending CN111440039A (en) | 2020-05-27 | 2020-05-27 | Novel indoor and outdoor cold firework formula and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111440039A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960908A (en) * | 2020-08-04 | 2020-11-20 | 江西吉润花炮新材料科技有限公司 | Method for preparing firework agent by using nitrobamboo cellulose paper |
| CN113461468A (en) * | 2021-06-11 | 2021-10-01 | 南京信息职业技术学院 | Environment-friendly cold firework and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0312692A1 (en) * | 1987-10-23 | 1989-04-26 | Stewart M. Singer | Improved flare composition and flare comprising said composition |
| CN104276908A (en) * | 2013-07-10 | 2015-01-14 | 周健 | Safe environment-friendly novel pyrotechnic composition |
-
2020
- 2020-05-27 CN CN202010461975.XA patent/CN111440039A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0312692A1 (en) * | 1987-10-23 | 1989-04-26 | Stewart M. Singer | Improved flare composition and flare comprising said composition |
| CN104276908A (en) * | 2013-07-10 | 2015-01-14 | 周健 | Safe environment-friendly novel pyrotechnic composition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960908A (en) * | 2020-08-04 | 2020-11-20 | 江西吉润花炮新材料科技有限公司 | Method for preparing firework agent by using nitrobamboo cellulose paper |
| CN113461468A (en) * | 2021-06-11 | 2021-10-01 | 南京信息职业技术学院 | Environment-friendly cold firework and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104276908A (en) | Safe environment-friendly novel pyrotechnic composition | |
| CN111440039A (en) | Novel indoor and outdoor cold firework formula and preparation process thereof | |
| CN103121886B (en) | Multicolor cold-firework reagent and manufacturing method of cold fireworks | |
| CN101679137B (en) | A pyrotechnic color composition | |
| CN104973998A (en) | Firework gunpowder composition for firework sounding beads | |
| CN104829401B (en) | A kind of safety and environmental protection colorful firecrackers medicament and the method for preparing colorful firecrackers with the medicament | |
| CN110981666A (en) | Smokeless and sulfur-free golden indoor setting-off type cold firework explosive and preparation method thereof | |
| US5917146A (en) | High-nitrogen energetic material based pyrotechnic compositions | |
| CN105218281B (en) | A kind of broom ripple colorful bright bead of fireworks | |
| CN101481287A (en) | Micro-smoke colorful bright bead for firework | |
| CN111620756A (en) | Formula and preparation process of bright bead for fireworks | |
| CN103626616A (en) | Sulfur-free explosive formula for inner barrel | |
| CN107793280B (en) | Composite type insensitive agent for firework powder | |
| CA2382688A1 (en) | Non-toxic and non-corrosive ignition mixture | |
| US2968542A (en) | Illuminants | |
| EP1127860A1 (en) | Pyrotechnic composition and method for preparation thereof | |
| GB1147724A (en) | Priming mixtures | |
| CN101298405B (en) | Smokeless odorless firework gunpowder | |
| CN110981669A (en) | Low-sensitivity environment-friendly firework chemical and preparation method thereof | |
| CN111499483A (en) | Formula of micro-smoke nontoxic croton seed and preparation process thereof | |
| CN107628918B (en) | Environment-friendly and low-toxicity bright pearl material of green of one kind and its preparation method and application | |
| RU2501777C1 (en) | Pyrotechnic composition for fireworks | |
| WO2003040063A3 (en) | Low firing energy initiator pyrotechnic mixture | |
| CN100405000C (en) | Smokeless fireworks | |
| RU2550390C1 (en) | Spark-forcing compound for red fireworks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200724 |
|
| RJ01 | Rejection of invention patent application after publication |