Slightly smoke reducing agent for spraying fireworks and cold light fireworks

Abstract

The invention discloses a micro-smoke reducing agent suitable for spraying fireworks and cold light fireworks. The micro-smoke reducing agent is prepared from the following raw material components in parts by weight: 25-35 parts of plant fiber powder, 18-22 parts of carbon powder, 15-25 parts of cationic modified starch, 19-22 parts of ferrocene and 8-12 parts of basic cupric carbonate. The raw materials are mixed according to a general method, and the raw materials are respectively crushed or mixed and crushed until the granularity is not greater than 200 meshes. The safety can be effectively improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of micro smoke reducing agent suitable for spray fireworks and cold light fireworks. BACKGROUND

[0002] Fireworks reducing agent is the substance that provides fuel and releases energy in the process of fireworks combustion, which provides energy and flame effect through chemical reaction. Such as sulfur, aluminum powder, magnesium powder, magnesium-aluminum alloy powder, titanium powder, carbon powder, etc. In the prior art, in order to reduce the emission of smoke, spray fireworks and cold light fireworks use nitrocellulose or single-base powder which has the functions of reduction, energy release, etc. However, both of them belong to high-risk materials, and their safety cannot be guaranteed, and they are inconvenient to use (such as needing to store in the dark and at a controlled temperature, and strictly prohibited from mixing with strong oxidizing agents such as potassium chlorate, etc.). At the same time, the market price is as high as 5-8 million yuan / ton, and the production cost is too high. SUMMARY

[0003] In order to solve the above-mentioned disadvantages, the technical problem to be solved by the present application is to provide a micro smoke reducing agent suitable for spray fireworks and cold light fireworks, which effectively improves safety and reduces production cost. In order to solve the above-mentioned technical problem, the technical solution adopted by the present application is a micro smoke reducing agent for spray fireworks and cold light fireworks, which is composed of the following raw material components in the following weight ratio: plant fiber powder 25-35 parts, carbon powder 18-22 parts, cationic modified starch 15-25 parts, ferrocene 19-22 parts, and basic copper carbonate 8-12 parts. The above-mentioned raw materials are mixed according to the general method, and the above-mentioned raw materials are respectively crushed or mixed and crushed to a particle size of not more than 200 mesh, and the micro smoke reducing agent is obtained.

[0004] Preferably, the carbon powder is pine charcoal powder.

[0005] Preferably, the weight ratio of each raw material component is: plant fiber powder 30 parts, carbon powder 20 parts, cationic modified starch 20 parts, ferrocene 20 parts, and basic copper carbonate 10 parts.

[0006] Preferably, the oxidizing agent used in combination with the micro smoke reducing agent is ammonium perchlorate. Further, the weight ratio of the micro smoke reducing agent to ammonium perchlorate is 1:2.

[0007] The beneficial effects of the present application are that, 1. The micro smoke reducing agent has a friction sensitivity and impact sensitivity of "0" and an ignition point of 268.7 degrees. It is not a high-risk material, and it is convenient to store and use. It can be used in spray fireworks and cold light fireworks to reduce the sensitivity of the fireworks and ensure safety.

[0008] 2. Its production cost is sufficient to support the micro smoke reducing agent to enter the market at a price of not higher than 2.8 million yuan / ton. Thus, the production cost of spray fireworks and cold light fireworks products is greatly reduced.

[0009] 3. The micro-smoke reducing agent is used in combination with ammonium perchlorate oxidizing agent, and micro-smoke and micro-dust effects can be achieved during the burning process.

[0010] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. DETAILED DESCRIPTION

[0011] Preparation example: The raw material components are weighed according to the following proportions: plant fiber powder 30 parts, pine charcoal powder 20 parts, cationic modified starch 20 parts, ferrocene 20 parts, basic copper carbonate 10 parts. Mix according to the general method, and the mixture is put into a ball mill for grinding to 200 mesh, to obtain a micro-smoke reducing agent for flower spraying and cold light fireworks.

[0012] In the above micro-smoke reducing agent formula: The plant fiber powder is a powder made of natural plant fibers as raw material. Such as lignocellulose powder, bamboo fiber powder, hemp fiber powder, seaweed fiber powder, etc. The plant fiber powder serves as the basic fuel and structural support, provides a combustible matrix and adjusts the burning rate. The gas expansion effect generated during the combustion of plant fiber enhances the deflagration effect of the pyrotechnic composition.

[0013] The base type of the cationic modified starch can be selected from cassava cationic starch or corn cationic starch. The ion type and degree of substitution are, for example, tertiary amine alkyl starch ether or high degree of substitution quaternary ammonium type. For example, high degree of substitution cassava cationic starch from Texas Run De, corn cassava mixed type from Guangdong Hui Mei HM-633. The cationic modified starch acts as a slow-burning agent, which can delay the burning rate through the high molecular chain structure, ensure stable combustion of the pyrotechnic composition and form uniform particles, control the duration of the pyrotechnic effect, and fix other components through film formation. After modification, it has hydrophilicity and thermal stability, which can improve the mechanical strength of the composition.

[0014] The carbon powder reacts with the oxidizing agent to generate a large amount of gas (such as CO2) and heat, which drives the pyrotechnic explosion. The high specific surface area of the carbon powder can accelerate the reaction.

[0015] Ferrocene, as a highly efficient reducing agent and catalyst, accelerates redox reactions through electron transfer, improves combustion efficiency, can homogeneously catalyze combustion reactions, shortens ignition delay time, reduces smoke generation, and simultaneously improves flame brightness and combustion efficiency.

[0016] Basic copper carbonate (chemical formula Cu2(OH)2CO3) is primarily used in existing technologies as a colorant for blue flames. Its working principle involves high-temperature decomposition to produce copper ions, which release blue light of a specific wavelength during electron transitions, thus creating the blue effect in fireworks. In this invention, basic copper carbonate decomposes to release CO2 and CuO, which are used to aid combustion and enhance the gas expansion effect.

[0017] Charcoal powder and ferrocene provide high heat of combustion, while plant fiber and starch regulate the energy release rate, and ferrocene stabilizes the combustion process. Charcoal powder and ferrocene synergistically accelerate the decomposition of ammonium perchlorate, shortening the reaction time (reducing the interval between exothermic peaks to 25-55℃), while plant fiber powder and modified starch delay combustion through their porous structure, achieving a "fast combustion-slow release" balance, resulting in uniform combustion during the ignition of sparkler fireworks and cold light fireworks products.

[0018] The low-smoke reducing agent passed the testing of the National Fireworks and Firecrackers Product Quality Inspection and Testing Center on September 26, 2025. Test Report No.: WAY20251290: The inspection and judgment were based on AQ4104-2008 "Safety Performance Indicators and Test Methods for Fireworks and Firecrackers". The tested items meet the standard requirements. Its friction and impact sensitivity are both 0, as detailed in the table below:

[0019] Test report number No: WAY20251292: The test basis is AQ4104-2008 "Safety performance indicators and test methods of fireworks and firecrackers"; the test result shows that its ignition temperature is 268.7℃.

[0020] In other preparation examples, the weight parts of each raw material component can be arbitrarily selected within the following ratio range, which will not be elaborated further: 25-35 parts of plant fiber powder, 18-22 parts of charcoal powder, 15-25 parts of cationic modified starch, 19-22 parts of ferrocene, and 8-12 parts of basic copper carbonate.

[0021] In application, ammonium perchlorate is used as the oxidant in conjunction with the smoke reducing agent. The weight ratio of the smoke reducing agent to ammonium perchlorate is 1:2.

[0022] The embodiments of the present invention disclosed above are merely illustrative of the invention. The embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. These embodiments were selected to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize it. However, the invention can be implemented in many ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the invention. Therefore, the invention is limited only by the claims and their full scope and equivalents, and not by the specific embodiments disclosed.

Claims

1. A smoke reducing agent for use in sparklers and cold light fireworks, characterized in that, The raw materials are composed of the following components in the indicated weight ratios: 25-35 parts plant fiber powder, 18-22 parts charcoal powder, 15-25 parts cationic modified starch, 19-22 parts ferrocene, and 8-12 parts basic copper carbonate. The above raw materials are then mixed using general methods, and the raw materials are pulverized separately or mixed and pulverized to a particle size of no more than 200 mesh.

2. The smoke reducing agent for spray fireworks and cold light fireworks as described in claim 1, characterized in that, The weight ratio of each raw material component is as follows: 30 parts plant fiber powder, 20 parts charcoal powder, 20 parts cationic modified starch, 20 parts ferrocene, and 10 parts basic copper carbonate.

3. A smoke reducing agent for spray fireworks and cold light fireworks as described in claim 1 or 2, characterized in that, The charcoal powder used is pine charcoal powder.

4. A smoke reducing agent for spray fireworks and cold light fireworks as described in claim 1 or 2, characterized in that, The oxidant used in conjunction with the micro-smoke reducing agent is ammonium perchlorate.

5. A smoke reducing agent for spray fireworks and cold light fireworks as described in claim 4, characterized in that, The weight ratio of the smoke reducing agent to ammonium perchlorate is 1:2.

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