JPS63126747A - Manufacture of thermosetting resin decorative board - Google Patents
Manufacture of thermosetting resin decorative boardInfo
- Publication number
- JPS63126747A JPS63126747A JP61273783A JP27378386A JPS63126747A JP S63126747 A JPS63126747 A JP S63126747A JP 61273783 A JP61273783 A JP 61273783A JP 27378386 A JP27378386 A JP 27378386A JP S63126747 A JPS63126747 A JP S63126747A
- Authority
- JP
- Japan
- Prior art keywords
- thermosetting resin
- resin
- decorative board
- thermosetting
- layer
- 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
- 229920005989 resin Polymers 0.000 title claims description 30
- 239000011347 resin Substances 0.000 title claims description 30
- 229920001187 thermosetting polymer Polymers 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000007639 printing Methods 0.000 description 10
- 229920000877 Melamine resin Polymers 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000004640 Melamine resin Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000004641 Diallyl-phthalate Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000006224 matting agent Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (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〕
この発明は、改良された熱硬化性樹脂化粧板の製造法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] This invention relates to an improved method for manufacturing thermosetting resin decorative laminates.
熱硬化性樹脂化粧板の製造は、通常、３０〜２００ ｇ
／ｒｒｒの含浸用紙やチタン紙などの表面に絵柄層を設
けたものに、熱硬化性樹脂を含浸して含浸紙とした後、
得られた含浸紙を基材の上に重ねて加熱加圧して成型す
ることにより行なわれている。The production of thermosetting resin decorative boards usually requires 30 to 200 g
/rrr impregnated paper or titanium paper with a pattern layer on its surface is impregnated with thermosetting resin to make impregnated paper.
This is done by stacking the obtained impregnated paper on a base material and molding it under heat and pressure.
しかし、このとき含浸用紙としては、含浸のしやすい多
孔性のものを使用するので、印刷時に微細なインキ抜け
が発生して、模様状の印刷においても勿論のこと、ベタ
印刷においては欠点が非常に目立つ、このため、得られ
る熱硬化性樹脂化粧板は外観上の欠点が目立ち、特に、
ベタ調やメタリック調の外観を有した欠点のない熱硬化
性樹脂化粧板を得ることは難しかった。However, since the impregnated paper is porous and easily impregnated, minute ink dropouts occur during printing, which is a serious drawback not only in pattern printing but also in solid printing. Therefore, the resulting thermosetting resin decorative board has noticeable defects in appearance, especially
It has been difficult to obtain a thermosetting resin decorative board that has a solid or metallic appearance and is free from defects.
この発明において解決しようとすることは、上記の従来
技術において、含浸用紙の表面が多孔性であることよる
印刷時のインキ抜けに起因する欠点を回避することにあ
る。The object of the present invention is to avoid the drawbacks of the above-mentioned prior art due to ink leakage during printing due to the porous surface of the impregnated paper.
この発明においては、含浸用紙に先に含浸を行なった後
、全面ベタ層あるいは模様を別の離型性フィルムから加
熱加圧時に転移させることにより、上記の問題点の解消
に成功した。In this invention, the above-mentioned problems have been successfully solved by first impregnating the impregnated paper and then transferring the solid layer or pattern on the entire surface from another releasable film during heating and pressing.
即ち、この発明は、
ｒ 基材上に熱硬化性樹脂含浸紙を重ね、さらに熱硬化
性インキ層を有する離型性フィルムをその熱硬化性イン
キ層側が熱硬化性樹脂含浸紙に接するようにして重ねた
後、以上の３者の重ねられたものを一対の熱盤の間で加
熱加圧して成型し、成型後に離型性フィルムを剥離する
ことにより、熱硬化性インキ層が含浸紙に転移して一体
に硬化した化粧板を得ることを特徴とする熱硬化性樹脂
化粧板の製造法ｊ
を要旨とするものである。That is, in this invention, a paper impregnated with a thermosetting resin is layered on a base material, and a releasable film having a thermosetting ink layer is placed so that the thermosetting ink layer side is in contact with the paper impregnated with a thermosetting resin. After stacking, the above three layers are heated and pressurized between a pair of hot platens to form them, and after forming, the releasable film is peeled off, so that the thermosetting ink layer is applied to the impregnated paper. The gist of the present invention is a method for producing a thermosetting resin decorative board, which is characterized by obtaining a decorative board that is integrally cured through transfer.
第１図は、この発明の好ましい態様を示す説明図で、一
対の熱盤１．１゛の間に、下から順に、基材２、熱硬化
性樹脂含浸紙３、離型性フィルム４の下面に透明樹脂Ｎ
５および着色層６とを有するもの、を重ねて置き、その
後、加熱加圧して成型することを示している。FIG. 1 is an explanatory diagram showing a preferred embodiment of the present invention, in which a base material 2, a thermosetting resin-impregnated paper 3, and a release film 4 are placed between a pair of heating plates 1.1'' in order from the bottom. Transparent resin N on the bottom surface
5 and a colored layer 6 are placed one on top of the other, and then heated and pressed to be molded.
ここで、７は鏡面板であって得られる製品は鏡面を持つ
よう意図しているが艶消ししたものや、凹凸を有するも
のを得たいときは、所定の表面形状を有するものを使用
すればよい。Here, 7 is a mirror plate, and the product obtained is intended to have a mirror surface, but if you want to obtain a matte or uneven plate, use a plate with a predetermined surface shape. good.
このようにして準備した後、圧力をかけて、熱５１１、
ｌ゛間に置いたものを加熱加圧して含浸紙の熱硬化性樹
脂を硬化させ、一体化する。After being prepared in this way, pressure is applied and heat 511,
The paper placed in between is heated and pressurized to harden the thermosetting resin of the impregnated paper and integrate it.
このとき、熱硬化性樹脂は一旦溶融して着色層に十分接
触した後に硬化するので、着色層と含浸樹脂とが十分接
触する。At this time, the thermosetting resin is once melted and cured after sufficiently contacting the colored layer, so that the colored layer and the impregnated resin are sufficiently contacted.
加熱加圧後に、第２図に示すようにして離型性フィルム
を剥がすと、着色層が転移し、その上に透明樹脂層を有
する熱硬化性樹脂化粧板が得られる。After heating and pressurizing, when the releasable film is peeled off as shown in FIG. 2, the colored layer is transferred and a thermosetting resin decorative board having a transparent resin layer thereon is obtained.
なお、透明樹脂層を設けると熱硬化性樹脂化粧板の表面
の物性が向上するので好ましいが、使用関度の少ない用
途に使用するときは、透明樹脂層を省くこともできる。Although it is preferable to provide a transparent resin layer because it improves the physical properties of the surface of the thermosetting resin decorative board, the transparent resin layer can be omitted when used for applications with little usage.
上記における各材料、操作について次に詳しく説明する
。Each material and operation mentioned above will be explained in detail below.
及且
高圧メラミン法では、通常と同様、フェノール樹脂を含
浸したコアー祇などが使用され、低圧メラミン法、ＤＡ
Ｐ （ジアリルフタレート樹脂）成型法では合板やパー
チクルボードが使用される。In the high-pressure melamine method, Core Gi impregnated with phenol resin is used as usual, and in the low-pressure melamine method, DA
Plywood or particle board is used in the P (diallyl phthalate resin) molding method.
遣」Ｌ歇
通常、３０〜２００ ｇ／ｍの含浸用紙やチタン紙など
を含浸用紙として使用する。含浸用紙は着色したものを
使用することができる。Normally, 30 to 200 g/m impregnated paper or titanium paper is used as the impregnated paper. Impregnated paper can be colored.
含浸用紙には、例えば、メラミン樹脂、ジアリルフタレ
ート樹脂、ベンゾグアナミン樹脂、不飽和ポリエステル
樹脂などの熱硬化線樹脂を必要により溶液化して、常法
により含浸させ、含浸紙とする。The impregnated paper is impregnated with a thermosetting wire resin such as melamine resin, diallyl phthalate resin, benzoguanamine resin, or unsaturated polyester resin, if necessary, by a conventional method.
星二１ヱエ土ム
離型性フィルムの材質としては、ポリプロピレン、飽和
ポリエステル、ナイロン、セルロースなどの印刷適性の
よいフィルムが適用できる。As the material for the release film, films with good printability such as polypropylene, saturated polyester, nylon, and cellulose can be used.
必要に応じ、シリカなどの艶消剤の内添、サンドブラス
ト加工などにより、表面を艶消ししたものを適用しても
よい。If necessary, the surface may be matted by internal addition of a matting agent such as silica, sandblasting, or the like.
１１土ヱ土１
着色インキ層は、硬化性インキを用いて設けたものであ
る。11 Earth E Earth 1 The colored ink layer was provided using a curable ink.
硬化性インキのバインダーは、熱硬化型のアクリルエマ
ルジョン、メラミン樹脂添加アクリルエマルジョン、メ
ラミン樹脂、不飽和ポリエステル樹脂、２液硬化型のウ
レタン樹脂であるアクリルウレタン、ポリエステルウレ
タンなどの、いずれも硬化性樹脂である。The binder for the curable ink is a curable resin such as a thermosetting acrylic emulsion, a melamine resin-added acrylic emulsion, a melamine resin, an unsaturated polyester resin, or a two-part curable urethane resin such as acrylic urethane or polyester urethane. It is.
バインダー以外には、顔料もしくは染料からなる着色剤
、安定剤、分散剤、充填剤、溶剤及び希釈剤などを添加
する。In addition to the binder, colorants such as pigments or dyes, stabilizers, dispersants, fillers, solvents, diluents, and the like are added.
メタリック感を出すためには、■アルミニウム粉、金粉
、銀粉などの金属顔料、■酸化チタン、雲母、水酸化ア
ルミニウムなどのパール顔料があり、■および■の顔料
は適宜に組合せて使用できる。In order to create a metallic feel, there are metal pigments such as aluminum powder, gold powder, and silver powder, and pearl pigments such as titanium oxide, mica, and aluminum hydroxide.
着色インキ層を設ける方法は、通常の印刷方法でよく、
グラビア、グラビアオフセット、シルクスクリーン、平
版オフセットなどの方法が適用できいる。The colored ink layer may be provided by a normal printing method,
Methods such as gravure, gravure offset, silk screen, and lithographic offset can be applied.
着色インキ層のパターンは全面に単一の色で印刷するベ
タ印刷であっても、パターン状であってもいずれでもよ
い。この発明の方法では通常のパターン状のものも適す
るが、ベタ印刷、もしくは部分的な模様であっても、個
々の模様自体はベタ調であるものが特に適していること
は前述した通りである。The pattern of the colored ink layer may be solid printing in which a single color is printed on the entire surface, or patterned. Although ordinary patterns are suitable for the method of this invention, as mentioned above, even if it is solid printing or a partial pattern, the individual patterns themselves are particularly suitable as solid patterns. .
五１豊１１
着色インキ層は単独で離型性フィルムに設けてもよいが
、透明樹脂層を設け、その後、着色インキ層を設けると
、得られる熱硬化性樹脂化粧板の表面の物性が向上する
。透明樹脂層は厚みとして２〜１００μｍ程度であり、
構成する樹脂は、着色インキ層と同様である。Go1 Yutaka 11 The colored ink layer may be provided alone on the release film, but if a transparent resin layer is provided and then a colored ink layer is provided, the physical properties of the surface of the resulting thermosetting resin decorative board will improve. do. The transparent resin layer has a thickness of about 2 to 100 μm,
The constituent resin is the same as that of the colored ink layer.
迦」［加」シえｌ−
加熱加圧成型は、熱盤を加熱及び加圧することにより、
通常は熱プレスを用いて行なう。Heat and pressure molding involves heating and pressurizing a hot platen.
This is usually done using a heat press.
高圧メラミン樹脂化粧板の場合のプレス条件は、温度と
して１４０〜１５０℃、圧力として７０〜１００Ｋｇ／
ａｄ、時間は１５〜２０分である。The pressing conditions for high-pressure melamine resin decorative boards are a temperature of 140 to 150°C and a pressure of 70 to 100 kg/kg.
ad, the time is 15-20 minutes.
含浸用紙は、その含浸性を維持する意味で表面をより平
滑化することができないので、先に印刷を施す従来の技
術においては、印刷上の欠点が避けられないが、この発
明の方法では、既に含浸を済ませた含浸紙に、加熱加圧
による成型時に離型性フィルム上から着色層を転移させ
るものであるから、対象は含浸により平滑化されており
、しかも、加熱加圧の手段を伴って転移させるため、着
色層の転移が十分に行なわれる利点がある。Since the surface of impregnated paper cannot be made smoother in order to maintain its impregnating property, printing defects are unavoidable in the conventional technique of printing first, but with the method of the present invention, Since the colored layer is transferred from the releasable film to the impregnated paper that has already been impregnated during molding by heating and pressing, the object has been smoothed by impregnation, and furthermore, the method is not accompanied by heating and pressing. There is an advantage that the colored layer is sufficiently transferred.
この発明によれば、インキ抜けによる欠点のない熱硬化
性樹脂化粧板が得られる。According to this invention, a thermosetting resin decorative board without defects due to ink omission can be obtained.
フェノール樹脂を含浸したコアー祇の上に、着色チタン
紙（実大Ｑｌ製、８０ｇ／ｒｄ）にメラミン樹脂（日本
カーバイド■製、ニカレジンＳ−２６０）を含浸させた
含浸紙を重ねた。Impregnated paper made of colored titanium paper (manufactured by Jitsai Ql, 80 g/rd) impregnated with melamine resin (Nicaresin S-260, manufactured by Nippon Carbide ■) was layered on top of the phenolic resin-impregnated core material.
この上に、下記離型性フィルムに下記着色層を設けたも
のを印刷面を下側にして重ねた。On top of this, a releasable film described below provided with the colored layer described below was stacked with the printed side facing down.
１」［咀りエ仁火メユ
束し■製、ルミラーＱ〜７５、厚み２５μｍ昭和インク
工業所■製、ｒ Ｍ Ｅ −Ｔ コー ルド」 （メ
ラミン樹脂系バインダー、色相：メタリック）を用い、
シルクスクリーン印刷により形成、厚み５０μｍ。1" [manufactured by Tsuri Einka Meyu Bunshi ■, Lumirror Q~75, thickness 25 μm, manufactured by Showa Ink Kogyo ■, rME-T Cold" (melamine resin binder, hue: metallic),
Formed by silk screen printing, thickness 50μm.
離型性フィルムのうえに鏡面板を重ね、熱プレスにより
１４０℃、８０にｇ／ｃＪ、２０分間の条件で成型し、
成型後、熱プレスより取り出して離型性フィルムを判が
した。A specular plate was layered on top of the release film, and molded by heat press at 140°C, 80 g/cJ, and 20 minutes.
After molding, it was taken out from the hot press and the releasable film was checked.
得られた高圧メラミン樹脂化粧板は、光輝性の高いメタ
リックな外観を有し、しかも、印刷抜けのないものであ
った。The obtained high-pressure melamine resin decorative board had a metallic appearance with high brightness and was free of printing defects.
第１図および第２図はこの発明の詳細な説明する図であ
る。FIGS. 1 and 2 are diagrams explaining the invention in detail.
Claims (2)
化性インキ層を有する離型性フィルムをその熱硬化性イ
ンキ層側が熱硬化性樹脂含浸紙に接するようにして重ね
た後、以上の３者の重ねられたものを一対の熱盤の間で
加熱加圧して成型し、成型後に離型性フィルムを剥離す
ることにより、熱硬化性インキ層が含浸紙に転移して一
体に硬化した化粧板を得ることを特徴とする熱硬化性樹
脂化粧板の製造法。(1) After layering thermosetting resin-impregnated paper on the base material, and then layering a release film having a thermosetting ink layer so that the thermosetting ink layer side is in contact with the thermosetting resin-impregnated paper. By heating and pressurizing and molding the above three layers between a pair of hot platens, and peeling off the release film after molding, the thermosetting ink layer is transferred to the impregnated paper and integrated. A method for producing a thermosetting resin decorative board, which is characterized by obtaining a decorative board that is cured.
明樹脂層および着色層とをこの順に有するものを使用す
る特許請求の範囲題１項記載の製造法。(2) The manufacturing method according to claim 1, which uses a release film having a transparent resin layer and a colored layer in this order as a thermosetting ink layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61273783A JPS63126747A (en) | 1986-11-17 | 1986-11-17 | Manufacture of thermosetting resin decorative board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61273783A JPS63126747A (en) | 1986-11-17 | 1986-11-17 | Manufacture of thermosetting resin decorative board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63126747A true JPS63126747A (en) | 1988-05-30 |
Family
ID=17532518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61273783A Pending JPS63126747A (en) | 1986-11-17 | 1986-11-17 | Manufacture of thermosetting resin decorative board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63126747A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002225191A (en) * | 2001-02-02 | 2002-08-14 | Daiken Trade & Ind Co Ltd | Decorative plate and its manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178870A (en) * | 1981-04-28 | 1982-11-04 | Formica Corp | Manufacture of decorative board |
-
1986
- 1986-11-17 JP JP61273783A patent/JPS63126747A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57178870A (en) * | 1981-04-28 | 1982-11-04 | Formica Corp | Manufacture of decorative board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002225191A (en) * | 2001-02-02 | 2002-08-14 | Daiken Trade & Ind Co Ltd | Decorative plate and its manufacturing method |
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