JPS62268896A - Heat resistant food container - Google Patents
Heat resistant food containerInfo
- Publication number
- JPS62268896A JPS62268896A JP61108593A JP10859386A JPS62268896A JP S62268896 A JPS62268896 A JP S62268896A JP 61108593 A JP61108593 A JP 61108593A JP 10859386 A JP10859386 A JP 10859386A JP S62268896 A JPS62268896 A JP S62268896A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- heat
- food container
- resistant
- aluminum hydroxide
- 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
- 235000013305 food Nutrition 0.000 title claims description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 12
- 239000012611 container material Substances 0.000 claims description 7
- 229920006015 heat resistant resin Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000000123 paper Substances 0.000 description 36
- -1 polyethylene terephthalate Polymers 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 4
- 238000010411 cooking Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000011087 paperboard Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- JMMZCWZIJXAGKW-UHFFFAOYSA-N 2-methylpent-2-ene Chemical compound CCC=C(C)C JMMZCWZIJXAGKW-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 208000018459 dissociative disease Diseases 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Package Specialized In Special Use (AREA)
- Paper (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、耐熱性食品容器材料に関し、更に詳しくは電
気オーブン、ガスオーブン及び電子レンジ等で調理され
る場合に使用される紙トレー及び紙カップ等の材料で、
耐熱性が著しく優れる耐熱性食品容器材料に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to heat-resistant food container materials, and more specifically to paper trays and paper cups used for cooking in electric ovens, gas ovens, microwave ovens, etc. With materials such as
This invention relates to a heat-resistant food container material that has extremely high heat resistance.
従来、耐熱性食品容器材料としては主として陶磁器が使
用されてきたが、近年になって使い捨て容器の需要かた
かまり、電気オーブン、ガスオーブンにはアルミ容器が
電子レンジ用にプラスチック容器等が使用されるよう（
なった。Traditionally, ceramics have been mainly used as heat-resistant food container materials, but in recent years the demand for disposable containers has increased, and aluminum containers are being used for electric ovens and gas ovens, while plastic containers are being used for microwave ovens. Looks like (
became.
しかし、アルミ容器、プラスチック容器は外観が悪いた
め、最近になって、紙の内面にポリエチレンテレフタレ
ートフィルムを積層し、外面に美ＩＩｌな印刷を施し九
紙容器が使用されるよう釦なってきた。However, aluminum containers and plastic containers have poor appearance, so recently paper containers have been used, which are made by laminating polyethylene terephthalate film on the inner surface of the paper and applying beautiful printing on the outer surface.
しかしながら、上記紙には一般に、通常の高級白板紙が
使用されているため、高温に暴露された場合、容器が劣
化し、強度が低下したシ、変色したシするという欠点を
有している。このため、紙そのものを高温に耐えるよう
にすることが今後の課題である。However, since the above-mentioned paper is generally made of ordinary high-grade white paperboard, it has the disadvantage that when exposed to high temperatures, the container deteriorates, the strength decreases, and the paper becomes discolored. Therefore, a future challenge is to make the paper itself resistant to high temperatures.
本発明の目的は、紙製耐熱性食品容器で高温調理を行っ
た場合、紙の劣化による容器の強度低下、変色等による
トラブル？防止するため、紙に耐熱性？もたせ之耐熱性
食品容器材料を提供することにある。The purpose of the present invention is to prevent problems such as a decrease in strength of the container and discoloration due to deterioration of the paper when cooking at high temperatures in a heat-resistant paper food container. Heat resistant to paper to prevent? Our objective is to provide heat-resistant food container materials.
本発明を概説すれば、本発明は耐熱性食品容器材料に関
する発明であって、セルロースパルプ及び水酸化アルミ
ニウムを含有する基紙の片面に、耐熱性樹脂が積層され
ていることを特徴とする。To summarize the present invention, the present invention relates to a heat-resistant food container material, and is characterized in that a heat-resistant resin is laminated on one side of a base paper containing cellulose pulp and aluminum hydroxide.
以下、本発明について具体的に説明する。The present invention will be specifically explained below.
基紙の製造は、セルロースパルプ及び水酸化アルミニウ
ムの水性分散系から、通常の抄紙法により行えばよい。The base paper may be produced from an aqueous dispersion of cellulose pulp and aluminum hydroxide by a conventional papermaking method.
パルプは、一般に叩解し、サイズ剤、バインダー、その
他必要薬品を添加し、分散させる。Pulp is generally beaten, and sizing agents, binders, and other necessary chemicals are added and dispersed.
サイズ剤としては、通常の抄紙用に使用されるものはい
ずれでもよいが、中性サイズ剤、例えばアルキルケテン
ダイマー、アルケニル無水コハク酸系が好ましい。バイ
ンダーとしては、水酸化アルミニウム粉末をシート中に
保持できるものであれば、特に制限はない。通常の抄紙
用に使用される、尿素樹脂、メラミン樹脂、ポリアミド
−エポキシ樹脂等の硬化性樹脂、ポリビニルアルコール
、デンプン及びその誘導体、ポリアクリル酸等の水溶性
樹脂類、各種合成樹脂エマルジョン、ラテックス、ある
いは繊維状のバインダー等のいずれでもよい。As the sizing agent, any sizing agent commonly used for papermaking may be used, but neutral sizing agents such as alkyl ketene dimer and alkenyl succinic anhydride are preferred. There are no particular restrictions on the binder as long as it can hold the aluminum hydroxide powder in the sheet. Hardenable resins such as urea resin, melamine resin, polyamide-epoxy resin, polyvinyl alcohol, starch and its derivatives, water-soluble resins such as polyacrylic acid, various synthetic resin emulsions, latex, etc. used for ordinary paper making, Alternatively, a fibrous binder or the like may be used.
一方、水酸化アルミニウム系は、水酸化アルミニウムを
水に溶解分散させる。On the other hand, in the aluminum hydroxide type, aluminum hydroxide is dissolved and dispersed in water.
その後、両者を均一くかくはん、混合し、凝集剤等を添
加し、抄紙機で抄紙する。抄紙機は、丸網マシンでも、
長網マシンでもよい。Thereafter, both are uniformly stirred and mixed, a flocculant, etc. are added, and paper is made using a paper machine. The paper machine is also a round net machine.
A Fourdrinier machine may also be used.
水酸化アルミニウムの配合量は基紙全体に対して１５〜
８５重量％が好ましく、３０〜７０重量％がよシ好適で
ある。それは、水酸化アルミニウムの配合量が多ければ
耐熱性が向上することは当然のことであるが、配合量が
８５重量％を超えると、シート強度が低下するので好ま
しくなく、他方、１５重量−未満では、耐熱性が低下し
、満足な値を得られないので好ましくないからである。The amount of aluminum hydroxide added is 15 to 15% of the total base paper.
85% by weight is preferred, and 30-70% by weight is even more preferred. It goes without saying that heat resistance will improve if the amount of aluminum hydroxide is increased, but if the amount exceeds 85% by weight, the sheet strength will decrease, which is undesirable. This is because heat resistance deteriorates and a satisfactory value cannot be obtained, which is not preferable.
基紙には、セルロースパルプ、水酸化アルミニウムのほ
かに、シートの耐熱補強材として、耐熱性の無機又は有
機の繊維を配合してもよい。In addition to cellulose pulp and aluminum hydroxide, the base paper may also contain heat-resistant inorganic or organic fibers as a heat-resistant reinforcing material for the sheet.
その配合量は、パルプに対して１０重ｆｉ％程度までで
よく、それによシ寸法安定性が向上する。The blending amount may be up to about 10% by weight based on the pulp, thereby improving dimensional stability.
好適な繊維材料としては、ガラス繊維、フェノール繊維
（飼えはカイノール繊維）、アラミド繊維、及びポリエ
ステル繊維等が使用可能である。Suitable fiber materials include glass fiber, phenol fiber (Kynol fiber), aramid fiber, and polyester fiber.
また、基紙は印刷されて使用される場合が多いが、その
場合、印刷性改善のため、サイズプレスにより表面サイ
ズを施してもよい。表面サイズ剤としては、通常の抄紙
で使用されるものがいずれも使用可能である。Further, the base paper is often used after being printed, and in that case, the surface size may be applied using a size press to improve printability. As the surface sizing agent, any one used in ordinary paper making can be used.
基紙の米坪は、紙トレーや紙カップの大きさ、配合物、
及び使用目的によって変るが、通常１００〜４００ ｆ
／ｒｓ”の範囲である。The base paper weight depends on the size of the paper tray and paper cup, the composition,
It varies depending on the purpose of use, but usually 100 to 400 f
/rs” range.
上記基紙の片面に耐熱性樹脂を積層するが、積層の方法
は常法でよく、列えはエクストルージョンコーティング
による方法、及び樹脂フィルムを接着剤を介してラミネ
ートする方法等がある。耐熱性樹脂の例としては、ポリ
エチレンテレフタレート等のポリエステル、ポリメチル
ペンテン、又はメチルペンテンと熱可塑性樹脂の原料単
量体との共重合体等が挙げられる。A heat-resistant resin is laminated on one side of the base paper, and the lamination method may be a conventional method, such as a method using extrusion coating or a method in which a resin film is laminated via an adhesive. Examples of the heat-resistant resin include polyesters such as polyethylene terephthalate, polymethylpentene, and copolymers of methylpentene and raw material monomers of thermoplastic resins.
本発明において、基紙に耐熱性樹脂を積層する際に、基
紙にアンカー剤をコーティングしたシ、コロナ処理等の
活性化処理を施してもよい。In the present invention, when the heat-resistant resin is laminated on the base paper, the base paper may be coated with an anchoring agent and may be subjected to activation treatment such as corona treatment.
耐熱性樹脂の積層厚みは、通常１０〜６゜μｍ、好まし
くは２５〜４０μｍである。The thickness of the heat-resistant resin layer is usually 10 to 6 μm, preferably 25 to 40 μm.
また、上記のごとき方法で得られた積層物は、使用目的
に応じて、エンボス加工等を施してもよい。Further, the laminate obtained by the above method may be subjected to embossing or the like depending on the intended use.
本発明の材料において、使用する水酸化アルミニウムは
白色の結晶粉末であシ、約２００℃まで安定であるが、
それ以上の温度では結晶水の解離反応が起って、大きな
吸熱？示す。したがって、上記水酸化アルミニウムをパ
ルプに配合して水酸化アルミニウム内添紙をつくると、
この紙自体も高温下で安定となシ、劣化が小さくなる。In the material of the present invention, the aluminum hydroxide used is a white crystalline powder and is stable up to about 200°C.
At higher temperatures, a dissociation reaction of crystal water occurs, resulting in a large endothermic reaction. show. Therefore, when aluminum hydroxide is blended with pulp to make aluminum hydroxide internally added paper,
This paper itself is also stable at high temperatures, reducing deterioration.
そして、この基紙に耐熱性樹脂を積層することによって
、優れた本発明の耐熱性食品容器材料が得られる。By laminating a heat-resistant resin on this base paper, the excellent heat-resistant food container material of the present invention can be obtained.
〔実施例〕
以下、本発明を実施例によシ更に具体的に説明するが、
本発明はこれに限定されるものではない。[Examples] Hereinafter, the present invention will be explained in more detail with reference to Examples.
The present invention is not limited to this.
実施例１及び比較例１
ＤＤＲにより３００ ｍｌまで叩解したＮ −ＢＫＰに
、バインダーとして、ビニロン繊維であるＳＭＬ（ユニ
チカ社製）５重量部を添加したもの１０５重量部に対し
て、水酸化アルミニウム（昭和軽金属社製）１４０重量
部を加え、ミキサーで十分にかくはんする。そして、こ
の原料に凝集剤としてハイホルダー ３０４（栗田工業
社製）を加え、抄＠１２００ｍの長網抄紙機で抄造を行
い、その間に存在するサイズプレスでカーボミュー＃Ｐ
１２０（ディックバーキュレス製）を用い表面サイズ処
理を行った。その後、マシンカレンダーで仕上処理を行
った。この基紙の米坪は２２０１７ｍ”であシ、緊度は
α８５であった。Example 1 and Comparative Example 1 N-BKP beaten to 300 ml by DDR was added with 5 parts by weight of vinylon fiber SML (manufactured by Unitika) as a binder. To 105 parts by weight, aluminum hydroxide ( Add 140 parts by weight (manufactured by Showa Light Metal Co., Ltd.) and stir thoroughly with a mixer. Then, High Holder 304 (manufactured by Kurita Water Industries, Ltd.) is added as a coagulant to this raw material, and paper is made using a Fourdrinier paper machine of 1200 m, and a size press located between the two is used to form Carbomu #P.
120 (manufactured by Dick Vercules) was used for surface size treatment. After that, finishing treatment was performed using a machine calender. The tsubo of this base paper was 22,017 m'', and the tension was α85.
次いで、得られた基紙にコロナ処理を施し、ポリエチレ
ンテレフタレートのペレット（東洋紡社製）ｔ−エクス
トルーダーによυ４０μｍ厚みで基紙の片面にラミネー
トした。Next, the obtained base paper was subjected to corona treatment, and polyethylene terephthalate pellets (manufactured by Toyobo Co., Ltd.) were laminated on one side of the base paper to a thickness of υ40 μm using a T-extruder.
一方、比較例として、高級白板紙（１９０ｔ／−のパル
プからなる原紙に３０ ｒ／ｍ”のクレー塗工をしたも
の）の片面に、上記と同一な方法で４０１ｘｍの厚みの
ポリエチレンテレフタレートをラミネートした。On the other hand, as a comparative example, polyethylene terephthalate with a thickness of 401 x m was laminated on one side of high-grade white paperboard (base paper made of 190 t/- pulp and coated with clay at 30 r/m) using the same method as above. did.
上記両者に対して、２００℃、５分間加熱の前後におけ
るポリエチレンテレフタレート面の白色度、破裂強さ、
引張強さ、及び耐折強さについて測定した。その結果を
下記第１表に示す。For both of the above, the whiteness of the polyethylene terephthalate surface before and after heating at 200 ° C. for 5 minutes, the bursting strength,
Tensile strength and folding strength were measured. The results are shown in Table 1 below.
第１表
第１表から明らかなように、実施同品は比較同品に比し
て加熱後の退色が少なく、破裂強さ及び引張強さの低下
がない。As is clear from Table 1, the same product had less discoloration after heating and no decrease in burst strength and tensile strength than the comparative product.
以上詳細に説明したように、本発明の材料によれば、紙
に耐熱性が付与されたので、高温調理した場合に、紙の
劣化に起因する容器の強度低下及び変色が防止でき、特
に通常のオーブン調理では不燃性が維持できるという顕
著な効果が奏せられる。As explained in detail above, since the material of the present invention imparts heat resistance to paper, it is possible to prevent a decrease in strength and discoloration of the container caused by deterioration of the paper when cooking at a high temperature. Cooking in an oven has the remarkable effect of maintaining non-flammability.
Claims (1)
る基紙の片面に、耐熱性樹脂が積層されていることを特
徴とする耐熱性食品容器材料。1. A heat-resistant food container material, characterized in that a heat-resistant resin is laminated on one side of a base paper containing cellulose pulp and aluminum hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108593A JPS62268896A (en) | 1986-05-14 | 1986-05-14 | Heat resistant food container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108593A JPS62268896A (en) | 1986-05-14 | 1986-05-14 | Heat resistant food container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62268896A true JPS62268896A (en) | 1987-11-21 |
Family
ID=14488738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61108593A Pending JPS62268896A (en) | 1986-05-14 | 1986-05-14 | Heat resistant food container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62268896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118694A (en) * | 1987-10-28 | 1989-05-11 | Sanyo Kokusaku Pulp Co Ltd | Heat resistant paper for food container |
| JP2004500136A (en) * | 1998-08-28 | 2004-01-08 | ザ、プロクター、エンド、ギャンブル、カンパニー | Selectively enhanced multilayer food containers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171799A (en) * | 1981-04-15 | 1982-10-22 | Nittetsu Mining Co Ltd | Water resistant and fire retardant paper |
| JPS59179900A (en) * | 1983-03-30 | 1984-10-12 | 大平製紙株式会社 | Inorganic paper |
| JPS60162895A (en) * | 1984-01-27 | 1985-08-24 | 株式会社興人 | Heat resistant coated paper |
-
1986
- 1986-05-14 JP JP61108593A patent/JPS62268896A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57171799A (en) * | 1981-04-15 | 1982-10-22 | Nittetsu Mining Co Ltd | Water resistant and fire retardant paper |
| JPS59179900A (en) * | 1983-03-30 | 1984-10-12 | 大平製紙株式会社 | Inorganic paper |
| JPS60162895A (en) * | 1984-01-27 | 1985-08-24 | 株式会社興人 | Heat resistant coated paper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01118694A (en) * | 1987-10-28 | 1989-05-11 | Sanyo Kokusaku Pulp Co Ltd | Heat resistant paper for food container |
| JP2004500136A (en) * | 1998-08-28 | 2004-01-08 | ザ、プロクター、エンド、ギャンブル、カンパニー | Selectively enhanced multilayer food containers |
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