JPH01236019A - Polytetrafluoroethylene coated cooking appliance - Google Patents
Polytetrafluoroethylene coated cooking applianceInfo
- Publication number
- JPH01236019A JPH01236019A JP1707789A JP1707789A JPH01236019A JP H01236019 A JPH01236019 A JP H01236019A JP 1707789 A JP1707789 A JP 1707789A JP 1707789 A JP1707789 A JP 1707789A JP H01236019 A JPH01236019 A JP H01236019A
- Authority
- JP
- Japan
- Prior art keywords
- coating
- polymer
- polytetrafluoroethylene
- cooking appliance
- coated film
- 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
Links
- -1 Polytetrafluoroethylene Polymers 0.000 title claims abstract description 31
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 31
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 31
- 238000010411 cooking Methods 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000010445 mica Substances 0.000 claims abstract description 8
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 8
- 239000003607 modifier Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 239000002216 antistatic agent Substances 0.000 claims abstract description 3
- 239000000696 magnetic material Substances 0.000 claims abstract description 3
- 239000000049 pigment Substances 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 11
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical group FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 4
- 229920001577 copolymer Polymers 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 2
- 229920001519 homopolymer Polymers 0.000 abstract description 2
- 238000004299 exfoliation Methods 0.000 abstract 1
- 239000006194 liquid suspension Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 239000008199 coating composition Substances 0.000 description 18
- 230000000052 comparative effect Effects 0.000 description 9
- 238000011056 performance test Methods 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 235000012149 noodles Nutrition 0.000 description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004278 EU approved seasoning Substances 0.000 description 1
- 241000467686 Eschscholzia lobbii Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 235000009419 Fagopyrum esculentum Nutrition 0.000 description 1
- 240000008620 Fagopyrum esculentum Species 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 241000047703 Nonion Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004962 Polyamide-imide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 229920006361 Polyflon Polymers 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical group FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- HCDGVLDPFQMKDK-UHFFFAOYSA-N hexafluoropropylene Chemical group FC(F)=C(F)C(F)(F)F HCDGVLDPFQMKDK-UHFFFAOYSA-N 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000000052 vinegar Substances 0.000 description 1
- 235000021419 vinegar Nutrition 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Cookers (AREA)
- Frying-Pans Or Fryers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ポリテトラフルオロエチレン系重合体を被覆
した調理器具に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to cooking utensils coated with a polytetrafluoroethylene polymer.
［従来の技術］
非粘着性、汚染防止等を目的として、各種基材、たとえ
ば調理器具の表面を含フツ素樹脂、特にポリテトラフル
オロエチレンにより被覆することが広く行なわれている
。[Prior Art] It is widely practiced to coat the surfaces of various substrates, such as cooking utensils, with a fluorine-containing resin, particularly polytetrafluoroethylene, for the purpose of non-adhesiveness, prevention of contamination, and the like.
しかしながら、ポリテトラフルオロエチレンは基材に対
する接着性が悪いため、種々の改質材料を加えて、基材
との接着性を改良する試みが種々なされているが、未だ
満足なポリテトラフルオロエチレン塗膜は得られていな
いのが現状である。However, since polytetrafluoroethylene has poor adhesion to substrates, various attempts have been made to improve its adhesion to substrates by adding various modifying materials, but polytetrafluoroethylene coatings remain unsatisfactory. At present, no film has been obtained.
特に調理器具については、高温での加熱、金属あるいは
木製の器具による摩擦、塩分、酢、油等による腐食なと
の過酷な使用条件において、長期間耐えうるポリテトラ
フルオロエチレン塗膜は皆無といってもよい。Especially for cooking utensils, there are no polytetrafluoroethylene coatings that can withstand long-term use under harsh conditions such as high-temperature heating, friction from metal or wooden utensils, and corrosion from salt, vinegar, oil, etc. You can.
［発明の目的］
本発明の目的は、長期間の使用によっても塗膜に傷が付
かず、脱離しないポリテトラフル才ロエヂレン系重合体
塗膜を表面に有する調理器具を提供することである。[Object of the Invention] The object of the present invention is to provide a cooking utensil having a polytetrafluoroethylene polymer coating film on its surface that does not cause damage or detachment even after long-term use.
すなわち、本発明は、分子量５００万〜９００万のポリ
テトラフルオロエチレン系重合体を界面活性剤と共に液
状担体に分散させた組成物を調理器具に塗布し、乾燥し
、焼成してポリテトラフルオロエチレン系重合体塗膜を
表面に形成したことを特徴とする調理器具を提供するも
のである。That is, in the present invention, a composition in which a polytetrafluoroethylene polymer having a molecular weight of 5 million to 9 million is dispersed in a liquid carrier together with a surfactant is applied to a cooking utensil, dried, and fired to produce polytetrafluoroethylene. The present invention provides a cooking utensil characterized by having a polymer coating film formed on its surface.
［発明の構成］
ポリテトラフルオロエチレン系重合体は、５００万〜９
００万の分子量を有するテトラフルオロエチレン単独重
合体、およびテトラフルオロエチレンを主成分とし、こ
れに１重電％未満、特に０５重量％未満の他の共重合外
注１ｍ体を変性剤として共重合させた共重合体（これら
共重合体は、変性ポリテトラフルオロエチレンとも称せ
られる。）を意味する。共重合体としては、テトラフル
オロエチレンと、ヘキザフルオロプロピレン、ビニルフ
ルオライド、ビニリデンフルオライド、パーフルオロア
ルキルビニルエーテル、クロロトリフルオロエチレン、
エチレン、プロピレン、各種アクリレートなどとの共重
合体が例示される。これらの内、ポリテトラフルオロエ
チレン（ＰＴＦＥ）が好ましい。これらポリテトラフル
オロエチレン系重合体は、通常乳化重合により調製され
たＯ１〜０５μ肩の一次粒径を有するものが好ましく用
いられる。[Structure of the invention] The polytetrafluoroethylene polymer has a molecular weight of 5 million to 9
Tetrafluoroethylene homopolymer having a molecular weight of 1,000,000 and tetrafluoroethylene as the main component, and copolymerized with less than 1% by weight, especially less than 05% by weight of other copolymerized 1m as a modifier. (These copolymers are also referred to as modified polytetrafluoroethylene.) Copolymers include tetrafluoroethylene, hexafluoropropylene, vinyl fluoride, vinylidene fluoride, perfluoroalkyl vinyl ether, chlorotrifluoroethylene,
Examples include copolymers with ethylene, propylene, various acrylates, and the like. Among these, polytetrafluoroethylene (PTFE) is preferred. These polytetrafluoroethylene polymers are preferably prepared by emulsion polymerization and have a primary particle size of 01 to 05 μm.
本発明者らの研究によると、分子量が５００万以上にな
ると、ポリテトラフルオロエチレン系重合体の結晶化度
が低くなり、塗布した場合、ピンホールが生じにくく、
また、表面の平滑性も、分子量がこれより低い結晶性ポ
リテトラフルオロエチレン系重合体より優れている。According to the research of the present inventors, when the molecular weight is 5 million or more, the crystallinity of the polytetrafluoroethylene polymer becomes low, and pinholes are less likely to occur when applied.
Moreover, the surface smoothness is also superior to crystalline polytetrafluoroethylene polymers having a lower molecular weight.
本明細書において、分子量は、数平均分子遺であって、
特公昭５６−５４０１６号公報に記載の方法によって測
定されるしのをいう。As used herein, molecular weight is a number average molecular weight,
It refers to the resistance measured by the method described in Japanese Patent Publication No. 56-54016.
塗布に用いろ組成物中のポリテトラフルオロエチレン系
重合体の濃度は、概ね１０〜６０重量％の範囲が好まし
い。The concentration of the polytetrafluoroethylene polymer in the composition used for coating is preferably in the range of approximately 10 to 60% by weight.
界面活性剤としては、非イオン系界面活性剤（たとえば
、ノニオンＨ３−２０８（日本４１」脂株式会社製））
、陰イオン系界面活性剤（たとえば、エマール（花王株
式会社製））などが用いられる。As a surfactant, a nonionic surfactant (for example, Nonion H3-208 (Nippon 41, manufactured by Futoshi Co., Ltd.))
, anionic surfactants (for example, Emar (manufactured by Kao Corporation)), etc. are used.
界面活性剤の亀は、組成物中のポリテトラフルオロエチ
レン系重合体１００重重部に対して５〜ｌＯ重皇部が好
ましい。The surfactant is preferably 5 to 10 parts by weight per 100 parts by weight of the polytetrafluoroethylene polymer in the composition.
液状媒体としては、水、有機液体（たとえばトルエン、
キシレンなど）のいずれもが使用できる。Liquid media include water, organic liquids (e.g. toluene,
xylene, etc.) can be used.
本発で用いる被覆用組成物は、前記ポリテトラフルオロ
エチレン系重合体の水性または有機液体性分散体に界面
活性剤および必要に応じ塗膜物性を改良するための各種
添加剤を加え、十分撹拌を行って均一化することにより
調製することができる。The coating composition used in this invention is prepared by adding a surfactant and, if necessary, various additives to improve the physical properties of the coating film, to the aqueous or organic liquid dispersion of the polytetrafluoroethylene polymer, and stirring thoroughly. It can be prepared by performing homogenization.
添加剤のうち重要なものは、塗膜性能を改質するために
加える各種の固体塗膜改質材である。固体塗膜改質材と
しては、まず、雲母粒子またはフレークが挙げられる。Important among the additives are various solid film modifiers that are added to modify film performance. Solid coating film modifiers include mica particles or flakes.
これらは、市販のものをそのまま使用することができる
。好ましくは、雲母粒子またはフレークは１０〜１００
ミクロン、特に１５〜５０ミクロンの平均粒子寸法を有
する。Commercially available products can be used as they are. Preferably, the mica particles or flakes are 10 to 100
It has an average particle size of microns, especially 15 to 50 microns.
雲母粒子またはフレークを添加することにより塗膜の耐
腐食性、耐摩耗性、耐スクラッチ性が増す。The addition of mica particles or flakes increases the corrosion, abrasion and scratch resistance of the coating.
固体塗膜改質材としては、着色のための顔料（酸化クロ
ム、酸化ヂタン、カーホンブラックなど）、耐摩耗性材
料（金属粉、磁性材料など）、基材との接着性や塗膜の
平滑性を改良するための有機高分子（溶融性フン素樹脂
、アクリル樹脂、ならびにポリアミドイミド、ポリイミ
ド、ポリアリレンザルファイドおよびポリエーテルスル
フォンのような耐熱性高分子など）、帯電防止材として
の導電性粒子または繊維（カーボン、銀やアルミニウム
などの金属）なとを本発明の組成物に加えることかでき
る。Solid paint film modifiers include pigments for coloring (chromium oxide, titane oxide, carphone black, etc.), wear-resistant materials (metal powder, magnetic materials, etc.), and materials that improve adhesion to substrates and improve paint film properties. Organic polymers (such as meltable fluororesins, acrylic resins, and heat-resistant polymers such as polyamide-imide, polyimide, polyarylene sulfide, and polyether sulfone) to improve smoothness, conductive as antistatic materials Chemical particles or fibers (carbon, metals such as silver and aluminum) can be added to the compositions of the invention.
雲母などのこれら添加材は、組成物全重量に対して、２
〜２０％の範囲で加えるのが好ましい。These additives, such as mica, account for 2% of the total weight of the composition.
It is preferable to add it in a range of 20% to 20%.
ポリテトラフルオロエチレン系重合体の調理器具暴利へ
の塗装は、常套の方法により行えばよい。The polytetrafluoroethylene polymer may be applied to the cooking utensils by a conventional method.
たとえば、プライマーをアルミニウムなどでできた基材
の表面に塗布した後、重合体を含む懸濁液組成物を塗布
し、焼き付ける。For example, after a primer is applied to the surface of a substrate made of aluminum or the like, a suspension composition containing a polymer is applied and baked.
調理器具基材としては、たとえばフライパン、ポットプ
レート、グリルパン、卵焼器、各種煮炊器具が例示でき
るが、これらに限定されるものではない。Examples of cooking utensil base materials include, but are not limited to, frying pans, pot plates, grill pans, egg fryers, and various cooking utensils.
［実施例］
次に実施例および比較例を示し、本発明を具体的に説明
する。なお、実施例および比較例中の％および部は、特
記しないかぎり重ｑ％および重量部である。[Examples] Next, Examples and Comparative Examples will be shown to specifically explain the present invention. Note that % and parts in Examples and Comparative Examples are q% and parts by weight unless otherwise specified.
実施例および比較例において、ボリテトラフルオロエヂ
レン系重合体の塗装および塗膜の性能の評価は、以下の
ように行った。In the Examples and Comparative Examples, the coating of the polytetrafluoroethylene polymer and the performance of the coating film were evaluated as follows.
竺駿
アルミニウムフライパン（厚さ２ 、４ ｍｍ）の内面
を常法により表面処理し、フッ素樹脂プライマー（ダイ
キン工業株式会社製「ポリフロンエナメルＥＫ−１９０
９ＢＫＮＪ）をスプレー塗装し、乾燥した後、プライマ
ーの上に試験すべき重合体組成物をスプレー塗装して、
約１００°Ｃの赤外乾燥炉で１０分間乾燥処理する。そ
の後、これを３８０℃の電気炉に入れ、１０分間焼成す
る。こうしてプライマーを含めて厚さ３０μｍのフッ素
樹脂塗膜を形成する。このようにして得たフライパンを
下記の試験に付す。The inner surface of a Shishu aluminum frying pan (thickness 2.4 mm) was surface-treated using a conventional method, and a fluororesin primer ("Polyflon Enamel EK-190" manufactured by Daikin Industries, Ltd.) was applied.
9BKNJ) and after drying, spray coating the polymer composition to be tested on top of the primer,
Dry for 10 minutes in an infrared drying oven at about 100°C. Thereafter, this is placed in an electric furnace at 380° C. and fired for 10 minutes. In this way, a fluororesin coating film with a thickness of 30 μm including the primer is formed. The frying pan thus obtained was subjected to the following tests.
耐摩耗性
試験に先立ち、塗装面に、アルミニウム地金面に達する
まで５本の平行線を２５ｔａｖの間隔をおいて切り込む
。フライパンを固定しておき、内面の切り込みを設けた
面の上に市販の金属タワシ（１８−８ステンレススチー
ル。重１１５０ｇ）を置き、その上に１４ｇの荷重をほ
ぼ平均してかけながら、金属タップを平行な切り込み線
と垂直方向に、７０回／分の速さで、かつタワシの中心
位置が切り込み線の少なくとも３本をまたくような巾（
ストローク５０１１Ｍ）で往復運動させる。同時にこの
タワノを７０回／分の速さで回転させる。フライパンの
１％５度は約２００〜２２０℃に保つ。この条件で、タ
ワンをｔｏｏｏｏ往復させ、塗膜の剥離の状態を観察す
る。ただし、途中、切り込み線間で塗膜が剥がれ、アル
ミニウム地金が切り込み線間てつながった場合はそこで
試験を停Ｌｌ：、する。Prior to the abrasion test, five parallel lines are cut into the painted surface at 25 tav intervals until they reach the bare aluminum surface. Fix the frying pan, place a commercially available metal scrubber (18-8 stainless steel, weight 1150g) on the surface with the notch on the inside, and apply an average load of 14g on it while applying a metal tap. in a direction perpendicular to the parallel score lines, at a speed of 70 times/minute, and with a width such that the center position of the scrubbing brush straddles at least three of the score lines (
Reciprocate with a stroke of 5011M). At the same time, this tower is rotated at a speed of 70 times/minute. Keep the frying pan at 1%5 degrees at about 200-220 degrees Celsius. Under these conditions, the tower was moved back and forth too far and the state of peeling of the coating film was observed. However, if the paint film peels off between the score lines and the aluminum base metal is connected between the score lines, the test will be stopped at that point.
調理試験
塗膜を形成したフライパンで、そば玉２個、野菜、肉お
よび調味料を用い、木べらを使用して焦げ付かないよう
適度にかき混ぜながら中火で平均１７分をかけて、焼き
そばを繰り返し作り、塗膜へのこびりつき具合をみる。Cooking test In a frying pan with a coating, 2 soba noodles, vegetables, meat, and seasonings are cooked over medium heat for an average of 17 minutes, stirring moderately using a wooden spoon to prevent burning. Make it repeatedly and check how it sticks to the paint film.
調理後、焼きそばを取り出したとき、表面の一部にでも
木へらで取り除けない焦げ付きまたはその跡が残るよう
になるまでの調理回数を数える。When you take out the fried noodles after cooking, count the number of times the fried noodles have been cooked until there is a burnt mark on the surface that cannot be removed with a wooden spatula.
実施例１
プロペラ式撹拌機を備えた撹拌槽に、濃度６０％のポリ
テトラフルオロエチレン（分子［６００万）水性分散液
８０００部を入れ、撹拌しつつラウリル硫酸ナトリウム
水溶液（ａ度２５％）１９５部、ポリオキンエチレン系
非イオン界面活性剤水溶液（ａ度２５％）１８４０部、
トルエン１５２部および純水１２５５部を、この順序に
仕込み、約２０分間撹拌して、水性被覆用組成物を調製
しこうして得られた被覆用組成物の固形分含量は４２％
、１）Ｉ−１は９５であり、粘度は２１０ｃｐ（２５°
Ｃ）であった。Example 1 8000 parts of an aqueous dispersion of polytetrafluoroethylene (6 million molecules) with a concentration of 60% was placed in a stirring tank equipped with a propeller-type stirrer, and while stirring, 195 parts of an aqueous sodium lauryl sulfate solution (25% a degree) was added. parts, 1840 parts of polyoxene ethylene nonionic surfactant aqueous solution (a degree 25%),
152 parts of toluene and 1255 parts of pure water were charged in this order and stirred for about 20 minutes to prepare an aqueous coating composition. The solid content of the coating composition thus obtained was 42%.
, 1) I-1 is 95 and the viscosity is 210 cp (25°
C).
この組成物から形成される塗膜の性能試験を上記の通り
行った。結果を下表に示す。Performance tests on coating films formed from this composition were conducted as described above. The results are shown in the table below.
実施例２
実施例１で調製した被覆用組成物２３８０部を撹拌機に
入れ、撹拌しつつ、これに雲母粉末（平均粒径３５μｘ
）２００部およびカーボンブラック水性ペースト（濃度
２４４％）８部を、この順序で添加し、合計で２０分間
撹拌して、水性被覆用組成物を調製した。Example 2 2380 parts of the coating composition prepared in Example 1 was placed in a stirrer, and while stirring, mica powder (average particle size 35 μx
) and 8 parts of carbon black aqueous paste (244% concentration) were added in this order and stirred for a total of 20 minutes to prepare an aqueous coating composition.
こうして得られた被覆用組成物の固形分含量は４２％、
ｐＨは９５であり、粘度は２２０ｃｐ（２５８Ｃ）であ
った。The solids content of the coating composition thus obtained was 42%;
The pH was 95 and the viscosity was 220 cp (258C).
この組成物から形成される塗膜の性能試験を上記の通り
行った。結果を下表に示す。Performance tests on coating films formed from this composition were conducted as described above. The results are shown in the table below.
実施例３
分子量５４０万のポリテトラフル才口エチレンを用いる
以外は実施例１と同じ手順で水性被覆用組成物を調製し
、同様に塗膜の性能試験を行った。Example 3 An aqueous coating composition was prepared in the same manner as in Example 1 except that polytetrafluoroethylene having a molecular weight of 5.4 million was used, and the performance of the coating film was tested in the same manner.
結果を下表に示す。The results are shown in the table below.
実施例４
実施例３で調製した水性被覆用組成物を用いる以外は実
施例２と同じ手順で水性被覆用組成物を調製し、同様に
塗膜の性能試験を行った。結果を下表に示す。Example 4 An aqueous coating composition was prepared in the same manner as in Example 2 except that the aqueous coating composition prepared in Example 3 was used, and the coating film performance test was conducted in the same manner. The results are shown in the table below.
実施例５
分子製７１０万のポリテトラフルオロエチレンを用いる
以外は実施例１と同じ手順で水性被覆用組成物を調製し
、同様に塗膜の性能試験を行った。Example 5 An aqueous coating composition was prepared in the same manner as in Example 1, except that 7.1 million polytetrafluoroethylene manufactured by Molecular Co., Ltd. was used, and the coating film performance tests were conducted in the same manner.
結果を下表に示す。The results are shown in the table below.
実施例６
実施例５で調製した水性被覆用組成物を用いる以外は実
施例２と同じ手順で水性被覆用組成物を調製し、同様に
塗膜の性能試験を行った。結果を下表に示す。Example 6 An aqueous coating composition was prepared in the same manner as in Example 2, except that the aqueous coating composition prepared in Example 5 was used, and the coating film performance tests were conducted in the same manner. The results are shown in the table below.
比較例１
分子全３００万のポリテトラフルオロエチレンを用いる
以外は実施例１と同じ手順で水性被覆用組成物を調製し
、同様に塗膜の性能試験を行った。Comparative Example 1 An aqueous coating composition was prepared in the same manner as in Example 1 except that polytetrafluoroethylene having a total molecular weight of 3 million was used, and the coating film performance test was conducted in the same manner.
結果を下表に示す。The results are shown in the table below.
比較例２
比較例１で調製した水性被覆用組成物を用いる以外は実
施例２と同じ手順で水性被覆用組成物を調製し、同様に
塗膜の性能試験を行った。結果を下表に示す。Comparative Example 2 An aqueous coating composition was prepared in the same manner as in Example 2, except that the aqueous coating composition prepared in Comparative Example 1 was used, and the coating film performance test was conducted in the same manner. The results are shown in the table below.
比較例３
分子＠４５０万のポリテトラフルオロエチレンを用いる
以外は実施例１と同じ手順で水性被覆用組成物を調製し
、同様に塗膜の性能試験を行った。Comparative Example 3 An aqueous coating composition was prepared in the same manner as in Example 1, except that polytetrafluoroethylene having a molecular weight of 4.5 million was used, and the performance of the coating film was similarly tested.
結果を下表に示す。The results are shown in the table below.
比較例４
比較例３て調製した水性被覆用組成物を用いる以外は実
施例２と同し手順で水性被覆用組成物を調製し、同様に
塗膜の性能試験を行った。結果を下表に示す。Comparative Example 4 An aqueous coating composition was prepared in the same manner as in Example 2 except that the aqueous coating composition prepared in Comparative Example 3 was used, and the coating film performance test was conducted in the same manner. The results are shown in the table below.
青 特許出願人 グイギン工業株式会社blue Patent applicant Guigin Kogyo Co., Ltd.
Claims (1)
チレン系重合体を界面活性剤と共に液状担体に分散させ
た組成物を調理器具に塗布し、乾燥し、焼成してポリテ
トラフルオロエチレン系重合体塗膜を表面に形成したこ
とを特徴とする調理器具。 ２、組成物が固体塗膜改質材を含有する特許請求の範囲
第１項記載の調理器具。 ３、固体塗膜改質材が、雲母粉末またはフレーク、顔料
、耐熱性高分子、金属粉、磁性材料、有機高分子および
／または帯電防止性材である特許請求の範囲第２項記載
の調理器具。 ４、固体塗膜改質材が、雲母粉末である特許請求の範囲
第３項記載の調理器具。[Claims] 1. A composition in which a polytetrafluoroethylene polymer with a molecular weight of 5 million to 9 million is dispersed in a liquid carrier together with a surfactant is applied to cooking utensils, dried, and fired to form a polytetrafluoroethylene polymer. A cooking utensil characterized by having a fluoroethylene polymer coating formed on its surface. 2. The cooking utensil according to claim 1, wherein the composition contains a solid coating film modifier. 3. Cooking according to claim 2, wherein the solid coating film modifier is mica powder or flakes, pigments, heat-resistant polymers, metal powders, magnetic materials, organic polymers, and/or antistatic materials. utensils. 4. The cooking utensil according to claim 3, wherein the solid coating film modifier is mica powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707789A JPH01236019A (en) | 1989-01-26 | 1989-01-26 | Polytetrafluoroethylene coated cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1707789A JPH01236019A (en) | 1989-01-26 | 1989-01-26 | Polytetrafluoroethylene coated cooking appliance |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62000642A Division JPS63168448A (en) | 1986-07-21 | 1987-01-05 | Polytetrafluoroethylene coating composition and use thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01236019A true JPH01236019A (en) | 1989-09-20 |
| JPH0360484B2 JPH0360484B2 (en) | 1991-09-13 |
Family
ID=11933917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1707789A Granted JPH01236019A (en) | 1989-01-26 | 1989-01-26 | Polytetrafluoroethylene coated cooking appliance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01236019A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991001106A1 (en) * | 1989-07-19 | 1991-02-07 | Sumitomo Electric Industries, Ltd. | Fluororesin-coated article |
| JPH04211935A (en) * | 1990-03-09 | 1992-08-03 | Sumitomo Electric Ind Ltd | Fluoroplastic coated article having graduations, pattern or character displayed thereon |
| JP2003522022A (en) * | 1999-05-04 | 2003-07-22 | ソシエタ イタリアーナ ペントーレ − エス．アイ．ピー． エス．ピー．エイ． | Method for producing a cooking container and container obtained by this method |
-
1989
- 1989-01-26 JP JP1707789A patent/JPH01236019A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991001106A1 (en) * | 1989-07-19 | 1991-02-07 | Sumitomo Electric Industries, Ltd. | Fluororesin-coated article |
| JPH04211935A (en) * | 1990-03-09 | 1992-08-03 | Sumitomo Electric Ind Ltd | Fluoroplastic coated article having graduations, pattern or character displayed thereon |
| JP2003522022A (en) * | 1999-05-04 | 2003-07-22 | ソシエタ イタリアーナ ペントーレ − エス．アイ．ピー． エス．ピー．エイ． | Method for producing a cooking container and container obtained by this method |
| JP4718688B2 (en) * | 1999-05-04 | 2011-07-06 | ソシエタ イタリアーナ ペントーレ − エス．アイ．ピー． エス．ピー．エイ． | Method for producing cooking container and container obtained by this method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0360484B2 (en) | 1991-09-13 |
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| EXPY | Cancellation because of completion of term |