JPH02195199A - Display firework ball cover - Google Patents

Display firework ball cover

Info

Publication number
JPH02195199A
JPH02195199A JP1180989A JP1180989A JPH02195199A JP H02195199 A JPH02195199 A JP H02195199A JP 1180989 A JP1180989 A JP 1180989A JP 1180989 A JP1180989 A JP 1180989A JP H02195199 A JPH02195199 A JP H02195199A
Authority
JP
Japan
Prior art keywords
ball cover
kraft pulp
semi
outer face
spherical shape
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.)
Granted
Application number
JP1180989A
Other languages
Japanese (ja)
Other versions
JP2599783B2 (en
Inventor
Noriaki Nakajima
中島 紀昭
Katsuki Kawasaki
川崎 勝樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP1011809A priority Critical patent/JP2599783B2/en
Publication of JPH02195199A publication Critical patent/JPH02195199A/en
Application granted granted Critical
Publication of JP2599783B2 publication Critical patent/JP2599783B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Paper (AREA)

Abstract

PURPOSE:To protect the ball cover from being dropped in an unburnt and combustion state by forming an accelerated semi-spherical shape in which cellulose nitrate and kraft pulp are made main components and painting an incombustible agent on its outer face. CONSTITUTION:An accelerated semi-spherical shape in which cellulose nitrate and kraft pulp of nitrogen of 12.0-13.15% are main components is formed and an incombustible agent is painted on its outer face. The preferable material composition of the semi-spherical shape is cellulose nitrate of 40-70%, kraft pulp of 10-30%, a stabilizer of 1-3% and a binder of 10-30%. Styrene-butadiene resin is preferably used as the binder and, in addition, urethane resin, acrylic resin and the like are applied as the incombustible agent painted on the outer face. A firework ball whose ball cover is used to produce is shot up without combustion at the time of a display and the ball cover is ignited by blames of an explosive ignited in air to burn in air completely so as not to drop on the ground.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、打上げ花火に用いられる1皮の改良に関する
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of a shell used for fireworks.

[従来の技術] 打上げ花火は第2図に示すように、1皮1.1を合せて
球体とし、内部に割薬2を充填してあって、この割薬2
を親等3によって爆発させ、玉皮lを破裂させるととも
に、図示していないが、国旗やパラシュート等の内容物
の放出あるいは星等への青火や初速付与を行っている。
[Prior art] As shown in Fig. 2, a firework is made into a sphere by combining 1 shell 1.1, and the inside is filled with powder 2.
is detonated by Relative 3, causing the jade shell L to rupture, and, although not shown, the contents of the national flag, parachute, etc. are released, or blue fire and initial velocity are imparted to stars, etc.

1皮lとしては、新聞紙を糊で貼り合わせたものと、ボ
ール紙を圧搾して半球形体に仕上げたものが知られてい
る。新聞紙で作った1皮の強度は抗張力として縦70〜
80 kg/cm2、横で35kg/Cm ’程度であ
る。ボール紙製の1皮は新聞紙製のものより劣る強度で
ある。
Two types of skins are known: newspapers glued together and cardboard pressed into a hemispherical shape. The tensile strength of one sheet made of newspaper is 70~
80 kg/cm2, about 35 kg/cm' horizontally. One skin made of cardboard is less strong than one made of newspaper.

[発明が解決しようとする課題] 従来の花火においては、打上げ後、爆発して、分散され
た未燃および燃えている1皮が地上に落下してきて、人
や構築物等にあたったりして、地上に散乱して、翌日そ
れらを回収する必要があった。又、火災の原因になる恐
れもあった。
[Problem to be solved by the invention] In conventional fireworks, after they are launched, they explode, and the scattered unburnt and burning shells fall to the ground and hit people, structures, etc. They were scattered on the ground and had to be retrieved the next day. Also, there was a risk of causing a fire.

本発明は未燃および燃えている状態で地上に・落下する
ことのない打上げ花火用玉皮を提供しようとするもので
ある。
The present invention aims to provide a shell for launching fireworks that will not fall to the ground in an unburnt or burning state.

[課題を解決するための手段] 本発明窒素は、窒素量が12.0〜13.15%の二ト
ロセルロースとクラフトパルプを主成分とする焼尽性半
球形体を成形し、その外面に不燃剤を塗布してなる打上
げ花火用1皮である。
[Means for Solving the Problems] The nitrogen of the present invention is produced by molding an extinguishable hemispherical body mainly composed of nitrocellulose and kraft pulp with a nitrogen content of 12.0 to 13.15%, and coating the outer surface with a nonflammable agent. This is the first skin for fireworks coated with.

上記半球形体の望ましい材料組成は、ニトロセルロース
40〜70%、クラフトパルプlO〜30%、安定剤1
〜3%、バインダーlO〜30%である。
The preferred material composition of the hemispherical body is 40-70% nitrocellulose, 10-30% kraft pulp, 1 stabilizer.
~3%, binder lO~30%.

本発明では無煙火薬の基剤であるニトロセルロースを主
成分として用いているので、燃焼力が強く、又、煙の発
生もない。クラフトパルプは1皮に強度を付与し成形性
を保つ。
Since the present invention uses nitrocellulose, which is the base of smokeless gunpowder, as the main component, it has strong combustion power and does not generate smoke. Kraft pulp gives strength to the skin and maintains its moldability.

バインダーとしてはスチレン−ブタジェン樹脂が好適に
用いられる。又、ニトロセルロースは自然に分解してい
くことがあるので、安定剤を混入する。安定剤としてエ
チルセントラリ・ノドなどが用いられる。
Styrene-butadiene resin is preferably used as the binder. Also, since nitrocellulose may naturally decompose, a stabilizer is mixed in. Ethyl centrali or the like is used as a stabilizer.

これらの配合割合は前述の範囲がそれぞれの機能を十分
に果す上で好適である。
The above-mentioned blending ratios are suitable for sufficiently fulfilling their respective functions.

焼尽性半球形体の外面に塗布する不燃剤としては、例え
ばウレタン樹脂、アクリル樹脂等を用いているので吸湿
が防+hでき、かつ不慮の着火による災害の発生が防止
できる。
As the flame retardant applied to the outer surface of the burnable hemispherical body, for example, urethane resin, acrylic resin, etc. are used, so that moisture absorption can be prevented and disasters caused by accidental ignition can be prevented.

[実施例] 次に実施例を図面によって説明する。[Example] Next, embodiments will be described with reference to the drawings.

ニトロセルロース(窒素ffi 13.15%)58% クラフトパルプ      20% バインダー         20% 安定剤          2% からなる組成物をもって、第1図に示す焼尽性半球形体
4をつくり、その外側に不燃剤としてウレタン樹脂5を
塗布した。かかる焼尽性半球形体4を2つ合せて球体の
1皮とし、内部に適当数の足6、小割7並びに割薬8を
配置し、クラフト紙9によって焼尽性半球形体4.4同
士の接合部分を結合して、打上げ花火5号玉を作成した
。なお、3は親等である。
Using a composition consisting of 58% nitrocellulose (nitrogen ffi 13.15%), 20% kraft pulp, 20% binder, and 2% stabilizer, the burnable hemispherical body 4 shown in FIG. 5 was applied. Two such burnable hemispherical bodies 4 are put together to form one skin of a sphere, and an appropriate number of feet 6, small parts 7, and split pills 8 are placed inside, and the burnable hemispherical bodies 4.4 are joined together using kraft paper 9. By combining the parts, I created a No. 5 fireworks ball. Note that 3 is a relative.

この花火玉を通常の方法で打上げた結果、焼尽性半球形
体よりつくった1皮は空中で分断されながら燃え尽きて
地上に落下してこなかった。
As a result of launching this firework ball in the usual manner, the shell made from the burnable hemispherical shape broke apart in the air, burned out, and did not fall to the ground.

[発明の効果] 本発明の1皮を使用して作成した花火玉は、打上げ時は
外側に不燃剤を塗布しているので、燃えることがなく打
上げられ、空中で着火された割薬の炎で、本発明の1皮
に着火し、空中で燃え尽き、地上に落下することがない
[Effects of the Invention] Firework balls made using the skin of the present invention are coated with a nonflammable agent on the outside at the time of launch, so they are launched without burning, and the flame of the powder that is ignited in the air is Then, the skin of the present invention ignites, burns out in the air, and does not fall to the ground.

本発明品は工業的に連続製造可能であり、新聞紙の貼り
合わせの様に手作りでないので、常に一定の強度の打上
げ花火用1皮が量産できる。
The product of the present invention can be manufactured continuously on an industrial scale, and since it is not handmade like pasting together newspapers, it is possible to mass-produce one skin for fireworks with a constant strength at all times.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の応用例を示す花火玉の断面図、第2図
は従来の花火工の一例を示す断面図である。 l・・・1皮、2・・・割薬、3・・・親等、4・・・
焼尽性半球形体、5・・・不燃剤、B・・・星、7・・
・小割、訃・・割薬、9・・・クラフト紙。 第1図 第2図
FIG. 1 is a sectional view of a firework ball showing an application example of the present invention, and FIG. 2 is a sectional view showing an example of a conventional fireworks craft. l...1 skin, 2...splitting medicine, 3...relatives, 4...
Burnable hemisphere, 5... Retardant, B... Star, 7...
・Kowari, 興...wariyaku, 9...Kraft paper. Figure 1 Figure 2

Claims (2)

【特許請求の範囲】[Claims] (1)ニトロセルロースとクラフトパルプを主成分とす
る焼尽性半球形体を成形し、その外面に不燃剤を塗布し
てなることを特徴とする打上げ花火用玉皮。
(1) A shell for launching fireworks characterized by forming an extinguishable hemispherical body mainly composed of nitrocellulose and kraft pulp, and coating the outer surface with a flame retardant.
(2)焼尽性半球形体はニトロセルロース40〜70%
、クラフトパルプ10〜30%、安定剤1〜3%、バイ
ンダー10〜30%より得られたものである請求項(1
)の打上げ花火用玉皮。
(2) Burnable hemispherical body is 40-70% nitrocellulose
, 10 to 30% of kraft pulp, 1 to 3% of stabilizer, and 10 to 30% of binder (claim 1)
)'s shell for fireworks.
JP1011809A 1989-01-23 1989-01-23 Launch fireworks skin Expired - Lifetime JP2599783B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1011809A JP2599783B2 (en) 1989-01-23 1989-01-23 Launch fireworks skin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1011809A JP2599783B2 (en) 1989-01-23 1989-01-23 Launch fireworks skin

Publications (2)

Publication Number Publication Date
JPH02195199A true JPH02195199A (en) 1990-08-01
JP2599783B2 JP2599783B2 (en) 1997-04-16

Family

ID=11788154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1011809A Expired - Lifetime JP2599783B2 (en) 1989-01-23 1989-01-23 Launch fireworks skin

Country Status (1)

Country Link
JP (1) JP2599783B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818337C1 (en) * 1998-04-23 1999-11-18 Buck Werke Gmbh & Co Kg Pyrotechnic active mass with ignition and combustion accelerator
WO2001092813A1 (en) * 2000-05-31 2001-12-06 Fugetsu Co., Ltd. Used paper mold ball skin for skyrocket and production method therefor
WO2007126075A1 (en) * 2006-04-27 2007-11-08 Kokusaienka Co., Ltd. Skyrocket ball
CN113582789A (en) * 2021-02-09 2021-11-02 北京理工大学 Safe and environment-friendly firework propellant based on self-sustaining reaction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438083U (en) * 1978-07-05 1979-03-13
JPS5563400A (en) * 1978-11-01 1980-05-13 Hitoshi Bitou Method of producing spherical shell of rocket fireworks
JPS5747793A (en) * 1980-09-03 1982-03-18 Boeicho Gijutsu Kenkyu Honbuch Manufacture of combustible cylindrical body for explosive cartridge or cannon primer
JPS57134700A (en) * 1981-02-10 1982-08-19 Asahi Chemical Ind Consuming fire tube
JPS57153260U (en) * 1981-03-20 1982-09-25
JPS61191967A (en) * 1985-02-20 1986-08-26 Fujitsu Ten Ltd Optical speed detector

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5438083U (en) * 1978-07-05 1979-03-13
JPS5563400A (en) * 1978-11-01 1980-05-13 Hitoshi Bitou Method of producing spherical shell of rocket fireworks
JPS5747793A (en) * 1980-09-03 1982-03-18 Boeicho Gijutsu Kenkyu Honbuch Manufacture of combustible cylindrical body for explosive cartridge or cannon primer
JPS57134700A (en) * 1981-02-10 1982-08-19 Asahi Chemical Ind Consuming fire tube
JPS57153260U (en) * 1981-03-20 1982-09-25
JPS61191967A (en) * 1985-02-20 1986-08-26 Fujitsu Ten Ltd Optical speed detector

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818337C1 (en) * 1998-04-23 1999-11-18 Buck Werke Gmbh & Co Kg Pyrotechnic active mass with ignition and combustion accelerator
WO2001092813A1 (en) * 2000-05-31 2001-12-06 Fugetsu Co., Ltd. Used paper mold ball skin for skyrocket and production method therefor
CN100406837C (en) * 2000-05-31 2008-07-30 风月股份有限公司 Used paper mold ball skin for skyrocket and production method therefor
WO2007126075A1 (en) * 2006-04-27 2007-11-08 Kokusaienka Co., Ltd. Skyrocket ball
CN113582789A (en) * 2021-02-09 2021-11-02 北京理工大学 Safe and environment-friendly firework propellant based on self-sustaining reaction

Also Published As

Publication number Publication date
JP2599783B2 (en) 1997-04-16

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