JPH02225556A - Molding material for synthetic resin lacquer ware base - Google Patents

Molding material for synthetic resin lacquer ware base

Info

Publication number
JPH02225556A
JPH02225556A JP4809589A JP4809589A JPH02225556A JP H02225556 A JPH02225556 A JP H02225556A JP 4809589 A JP4809589 A JP 4809589A JP 4809589 A JP4809589 A JP 4809589A JP H02225556 A JPH02225556 A JP H02225556A
Authority
JP
Japan
Prior art keywords
polyester resin
molding material
balloons
specific gravity
resin
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
Application number
JP4809589A
Other languages
Japanese (ja)
Inventor
Ichiro Oku
一郎 奥
Kazuo Tabata
田端 一夫
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4809589A priority Critical patent/JPH02225556A/en
Publication of JPH02225556A publication Critical patent/JPH02225556A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide the title molding material excellent in moldability, coatability, etc., by mixing a polyester resin with a specified amount of aluminum hydroxide or/and rice hulls, a specified amount of low-specific gravity balloons and a small amount of a curing agent, a mold release, etc. CONSTITUTION:A molding material for a synthetic resin lacquer ware base is produced by mixing 100 pts.wt. polyester resin (A) with 30-100 pts.wt. aluminum hydroxide or/and rice hulls, (B), 10-70 pts.wt. glass balloons or 'shirasu' balloons (C) of a specific gravity of 0.28-0.39, a small amount of a curing agent (e.g. t-butyl benzoate), a mold release, (e.g. zinc stearate), etc. (C). Because the polyester resin can be molded by direct pressure molding under low pressure, component C can be prevented from being collapsed during molding and a lacquer ware base having a smooth surface can be obtained. Because component B is added to the material, a lacquer ware base resembling very closely natural woody material can be obtained.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は合成樹脂製の盆その他の合成樹脂製漆器素地を
形成するための成形樹脂材料に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a molded resin material for forming synthetic resin trays and other synthetic resin lacquerware bases.

〔従来の技術とその課題〕[Conventional technology and its issues]

漆器素地としては、古くから木質材を切削したり91貫
いたりしたものが使用され、これに漆を塗層して漆器を
製造している。
The base material for lacquerware has been cut or 91-pierced wood from ancient times, and lacquerware is manufactured by coating this with a layer of lacquer.

このような天然木質材からなる漆器素地は、多量生産に
適せず、極めて高価なものになるために、近年、アミノ
系又はフェノール系の合成樹脂、或いはポリエステル樹
脂等の熱硬化性樹脂よりなる成形材料によって漆器素地
製品を製造することが行われるようになった。
Lacquerware bases made of such natural wood materials are not suitable for mass production and are extremely expensive. Lacquerware base products began to be manufactured using molding materials.

しかしながら、例えばフェノール樹脂に充填材として木
粉を混入してなる材料を直圧成形することにより得られ
た漆器素地は、色彩的にも天然木質材とは異なるばかり
でなく、その比重が1.3以上もあって、天然木質材か
らなる漆器素地に比べ重量が大きく、取扱時において異
質感を与えることになる。
However, for example, the lacquerware base obtained by direct pressure molding of a material made of phenolic resin mixed with wood flour as a filler not only differs in color from natural wood materials, but also has a specific gravity of 1. 3 or more, it is heavier than a lacquerware base made of natural wood, giving it a different feel when handled.

このため、ガラスバルーン等の中空のバルーンをフェノ
ール樹脂に混入してその比重を減少させることも考えら
れるが、アミノ系又はフェノール系の樹脂成形材料にお
いては、200 kg/c4前後の圧力で直圧成形され
るために、その圧力によって中空のバルーンが破壊され
て比重の軽減化を図ることが困難であり、その上、バル
ーンの破壊跡が成形品の表面に残存して塗料を必要とす
る漆器素地には使用できないものである。
For this reason, it may be possible to reduce the specific gravity by mixing hollow balloons such as glass balloons into phenolic resin, but for amino-based or phenolic resin molding materials, direct pressure at a pressure of around 200 kg/c4 is considered. As the lacquerware is molded, the pressure destroys the hollow balloon, making it difficult to reduce the specific gravity.Furthermore, traces of the balloon's destruction remain on the surface of the molded product, requiring paint. It cannot be used on substrates.

このような中空バルーンの破壊は、100 kg/c4
以下の圧縮成形が可能なポリエステル樹脂を漆器素地の
成形材料として使用した場合にはなくすることができる
が、ポリエステル樹脂は抜型時に収縮して成形品にクラ
ックを頻繁に発生させる虞れがあり、このため、充填剤
、補強剤として炭酸カルシウムやガラス繊維を多量に添
加しておかねばならないが、このような材料を混入する
と、成形される漆器素地の比重の軽減を図ることが難し
く、その上、炭酸カルシウム等の無機質フィラーをポリ
エステル樹脂に添加してなる成形材料では、天然木質材
からなる漆器素地の木質感等の外観とは程遠くなり、感
触などの風合いにおいても著しく劣るものである。
The destruction of such a hollow balloon is 100 kg/c4
This problem can be avoided if the following compression moldable polyester resin is used as the molding material for the lacquerware base, but polyester resin may shrink during mold removal and cause frequent cracks in the molded product. For this reason, it is necessary to add large amounts of calcium carbonate and glass fiber as fillers and reinforcing agents, but if such materials are mixed, it is difficult to reduce the specific gravity of the lacquerware base to be molded. A molding material made by adding an inorganic filler such as calcium carbonate to a polyester resin is far from the woody appearance of a lacquerware base made of natural wood, and is significantly inferior in feel and texture.

本発明はこのような問題点に鑑みてなされてもので、天
然木質材からなる漆器素地と酷似した比重や感触等の風
合いを呈し、且つ成形性、塗装性等の製造作業性に優れ
た合成樹脂製漆器素地の樹脂成形材料を提供するもので
ある。
The present invention was made in view of these problems, and is a synthetic material that exhibits textures such as specific gravity and touch that are very similar to lacquerware bases made of natural wood materials, and has excellent manufacturing workability such as moldability and paintability. The present invention provides a resin molding material for resin lacquerware base.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明の合成樹脂製漆器素
地の成形材料は、ポリエステル樹脂100重量部に対し
て水酸化アルミニウム又は/及び籾殻を30〜100重
量部添加すると共に比重0.28〜0゜39のガラスバ
ルーン又はシラスバルーンを10〜70重量部、適量の
硬化剤、離型剤等と共に添加混合してなるものである。
In order to achieve the above object, the molding material for the synthetic resin lacquerware base of the present invention is prepared by adding 30 to 100 parts by weight of aluminum hydroxide or/and rice husks to 100 parts by weight of polyester resin, and having a specific gravity of 0.28 to 100 parts by weight. It is made by adding and mixing 10 to 70 parts by weight of 0.39 glass balloons or shirasu balloons together with appropriate amounts of hardening agents, mold release agents, etc.

〔作  用〕[For production]

成形材料の主成分であるポリエステル樹脂は、低圧によ
る直圧成形が可能であるから、このポリエステル樹脂に
添加しているガラスバルーン又はシラスバルーンの破壊
が防止され、成形された漆器素地の表面塗装が良好に行
えると共にこれらのバルーンの添加量によって天然木質
材よりなる漆器素地に近似した比重の樹脂製漆器素地を
得ることができる。
Polyester resin, which is the main component of the molding material, can be molded under direct pressure at low pressure, which prevents the glass balloons or shirasu balloons added to this polyester resin from breaking, and makes it easier to paint the surface of the molded lacquerware base. This can be carried out satisfactorily, and depending on the amount of these balloons added, it is possible to obtain a resin lacquer ware base having a specific gravity similar to that of a lacquer ware base made of natural wood.

さらに、ポリエステル樹脂に充填剤として水酸化アルミ
ニウム又は籾殻の少なくともいずれか一方を30〜10
0重量部添加しているから、外観が天然の木質材と酷似
し、且つ上記比重の軽減化と相俟って感触等の風合いが
天然木質材よりなる漆器素地と同等な樹脂製漆器素地が
得られる。
Furthermore, at least one of aluminum hydroxide or rice husk is added to the polyester resin as a filler at a concentration of 30 to 10%.
Because 0 parts by weight is added, the appearance is very similar to natural wood, and together with the above-mentioned reduction in specific gravity, the resin lacquerware base is made of resin that has the same texture as the lacquerware base made of natural wood. can get.

又、ポリエステル樹脂の一部に低収縮性ポリエステル樹
脂を使用して、これに少量の増粘剤、硬化剤を添加する
ことにより、成形後のクラックの発生をなくし得るもの
である。
Furthermore, by using a low shrinkage polyester resin as a part of the polyester resin and adding a small amount of a thickener and a hardening agent thereto, it is possible to eliminate the occurrence of cracks after molding.

次に本発明の実施例を詳述する。Next, examples of the present invention will be described in detail.

〔実 施 例〕〔Example〕

樹脂製漆器素地成形用材料の主成分である合成樹脂とし
てポリエステル樹脂を使用し、このポリエステル樹脂1
00重量部に対して比重が2.4の水酸化アルミニウム
又は比重が1.2〜1.5の粉末状籾殻の少なくとも何
れか一方を30〜100重量部添加すると共にガラスバ
ルーン(比重: 0.28〜0.39)を10〜70重
量部添加し、さらに、少量の酸化マグネシウムとt−ブ
チル/ベンドエート、ジンクステアレートを添加混合し
て直圧用合成樹脂漆器成形材料を構成しているものであ
る。
Polyester resin is used as the main component of the resin lacquerware base molding material, and this polyester resin 1
00 parts by weight of at least one of aluminum hydroxide having a specific gravity of 2.4 or powdered rice husk having a specific gravity of 1.2 to 1.5, and glass balloons (specific gravity: 0.00 parts by weight). A synthetic resin lacquerware molding material for direct pressure is made by adding 10 to 70 parts by weight of 28 to 0.39) and further adding and mixing a small amount of magnesium oxide, t-butyl/bendate, and zinc stearate. be.

このような成形材料において、上記ポリエステルと樹脂
しては全て一般用ポリエステル樹脂(日本触媒■製;商
品名工ボラックN−340にorN−54)を使用して
もよいが、成形後におけるクラックの発生を防止する目
的で、該一般用ポリエステル樹脂の一部に低収縮性ポリ
エステル樹脂(日本触媒■製:商品名工ボラックAT−
100)を、一般用ポリエステル樹脂70〜90重量部
に対して低収縮性ポリエステル樹脂10〜30重量部の
配合割合で使用することが望ましい。
In such a molding material, a general polyester resin (manufactured by Nippon Shokubai ■; trade name: Borac N-340 or N-54) may be used as the polyester and resin, but cracks may occur after molding. In order to prevent this, low shrinkage polyester resin (manufactured by Nippon Shokubai ■, product: Meiko Borac AT-) was added to a part of the general polyester resin.
100) is preferably used in a blending ratio of 10 to 30 parts by weight of the low shrinkage polyester resin to 70 to 90 parts by weight of the general purpose polyester resin.

このような樹脂成形材料は、前記配合割合の一般用ポリ
エステル樹脂液と低収縮性ポリエステル樹脂液との混合
液に、前記水酸化アルミニウム又は粉末状籾殻、或いは
これらの物質を任意の割合で混合して添加し、さらに、
前記ガラスバルーンを加えてニーダにより混練しながら
増粘剤として少量の酸化マグネシウム、硬化剤としてt
−ブチル/ベンドエート、離型剤としてジンクステアレ
ートを少量宛添加して混練し、ブロック状に形成するこ
とにより得られるものである。
Such a resin molding material is prepared by mixing the aluminum hydroxide, powdered rice husk, or these substances in any ratio into a mixture of a general-purpose polyester resin liquid and a low-shrinkage polyester resin liquid in the above-mentioned mixing ratio. and then add
While adding the glass balloon and kneading with a kneader, add a small amount of magnesium oxide as a thickener and t as a hardening agent.
-Butyl/bendoate and a small amount of zinc stearate as a mold release agent are added and kneaded to form a block.

上記合成樹脂漆器成形材料によって合成樹脂製漆器素地
、例えば直径が110mmで、糸尻部22m■、底面中
央部10mm、彎曲部13mm、吸口部2auoの肉厚
を有する汁碗を成形するには、該成形材料を金型内に充
填したのち、金型温度120〜140″C、プレス圧力
50−100 kg / cIaニ”’i’ 2〜8 
分間成形処理ヲ施せばよく、こうして得られた汁碗は、
割れやピンホールが発生していなく、低比重で淡色美麗
な天然木風合いを有するものであった。
In order to mold a synthetic resin lacquerware base, for example, a soup bowl with a diameter of 110 mm, a thread tail part of 22 m, a bottom center part of 10 mm, a curved part of 13 mm, and a mouth part of 2 au, using the above synthetic resin lacquer molding material, After filling the mold with the molding material, the mold temperature is 120~140''C and the press pressure is 50~100 kg/cIa 2~8''.
The soup bowl obtained in this way can be formed by a molding process for a minute.
There were no cracks or pinholes, and it had a low specific gravity, light color, and beautiful natural wood texture.

次に、上記合成樹脂漆器成形材料の各組成分の割合を上
記範囲内において適宜に設定し、上記条件下で成形して
得られた成形品の実施例を表示する。
Next, examples of molded products obtained by appropriately setting the proportions of each component of the synthetic resin lacquerware molding material within the above range and molding under the above conditions will be shown.

(以下空白) なお゛、以上の実施例において、各組成分の数値は重量
部を表す。
(Blank below) Note that in the above examples, the numerical values for each component represent parts by weight.

〔発明の効果〕〔Effect of the invention〕

以上のように本発明の本発明の合成樹脂製漆器素地の成
形材料は、ポリエステル樹脂100重量部に対して水酸
化アルミニウム又は/及び籾殻を30〜100重量部添
加すると共に比重0.28〜0.39のガラスバルーン
又はシラスバルーンを10〜70重量部、適量の硬化剤
、離型剤等と共に添加混合してなるものであるから、ポ
リエステル樹脂は低圧による直圧成形が可能であるので
、このポリエステル樹脂に添加しているガラスバルーン
又はシラスバルーンの成形時における破壊を防止するこ
とができ、従って、表面が滑らかな漆器素地を得ること
ができて爾後の表面塗装が良好に行え、成形性、仕上性
、塗装性等の製造作業性を向上させることができると共
にこれらのバルーンの添加量によって天然木質材よりな
る漆器素地に近似した比重の樹脂製漆器素地を得ること
ができるものである。
As described above, the molding material for the synthetic resin lacquerware base of the present invention is prepared by adding 30 to 100 parts by weight of aluminum hydroxide or/and rice husk to 100 parts by weight of polyester resin, and having a specific gravity of 0.28 to 0. It is made by adding and mixing 10 to 70 parts by weight of .39 glass balloons or shirasu balloons with appropriate amounts of curing agent, mold release agent, etc., and polyester resin can be directly pressure molded at low pressure. It is possible to prevent glass balloons or shirasu balloons added to polyester resin from breaking during molding. Therefore, it is possible to obtain a lacquerware base with a smooth surface, which allows subsequent surface painting to be performed well, and improves moldability. Manufacturing workability such as finishing and painting properties can be improved, and depending on the amount of these balloons added, a resin lacquerware base with a specific gravity similar to that of a lacquerware base made of natural wood can be obtained.

さらに、ポリエステル樹脂に充填剤として水酸化アルミ
ニウム又は籾殻の少なくともいずれか一方を30〜10
0重量部添加しているから、外観が天然の木質材と酷似
し、且つ上記比重の軽減化と相俟って感触等の風合いが
天然木質材よりなる漆器素地と同等な樹脂製漆器素地を
得ることができるものであり、 又、ポリエステル樹脂
の一部に低収縮性ポリエステル樹脂を使用して、これに
少量の増粘剤、硬化剤を添加することにより、成形後の
クラックの発生をなくし得るものである。
Furthermore, at least one of aluminum hydroxide or rice husk is added to the polyester resin as a filler at a concentration of 30 to 10%.
Because 0 parts by weight is added, the appearance is very similar to natural wood, and together with the above-mentioned reduction in specific gravity, it is possible to create a resin lacquerware base that has the same texture as the lacquerware base made of natural wood. In addition, by using low-shrinkage polyester resin as part of the polyester resin and adding a small amount of thickener and hardening agent to this, it is possible to eliminate the occurrence of cracks after molding. It's something you get.

Claims (1)

【特許請求の範囲】[Claims] (1)、ポリエステル樹脂100重量部に対して水酸化
アルミニウム又は/及び籾殻を30〜100重量部添加
すると共に比重0.28〜0.39のガラスバルーン又
はシラスバルーンを10〜70重量部、少量の硬化剤、
離型剤等と共に添加混合してなることを特徴とする合成
樹脂製漆器素地の成形材料。
(1) Add 30 to 100 parts by weight of aluminum hydroxide or/and rice husk to 100 parts by weight of polyester resin, and add a small amount of 10 to 70 parts by weight of glass balloons or shirasu balloons with a specific gravity of 0.28 to 0.39. curing agent,
A molding material for lacquerware made of synthetic resin, characterized by being mixed with a mold release agent, etc.
JP4809589A 1989-02-27 1989-02-27 Molding material for synthetic resin lacquer ware base Pending JPH02225556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4809589A JPH02225556A (en) 1989-02-27 1989-02-27 Molding material for synthetic resin lacquer ware base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4809589A JPH02225556A (en) 1989-02-27 1989-02-27 Molding material for synthetic resin lacquer ware base

Publications (1)

Publication Number Publication Date
JPH02225556A true JPH02225556A (en) 1990-09-07

Family

ID=12793757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4809589A Pending JPH02225556A (en) 1989-02-27 1989-02-27 Molding material for synthetic resin lacquer ware base

Country Status (1)

Country Link
JP (1) JPH02225556A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608355A (en) * 1983-06-29 1985-01-17 Toshiba Corp Unsaturated polyester resin composition
JPS6241260A (en) * 1985-08-15 1987-02-23 Matsushita Electric Works Ltd Resin composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS608355A (en) * 1983-06-29 1985-01-17 Toshiba Corp Unsaturated polyester resin composition
JPS6241260A (en) * 1985-08-15 1987-02-23 Matsushita Electric Works Ltd Resin composition

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