JPS6361173B2 - - Google Patents

Info

Publication number
JPS6361173B2
JPS6361173B2 JP58006954A JP695483A JPS6361173B2 JP S6361173 B2 JPS6361173 B2 JP S6361173B2 JP 58006954 A JP58006954 A JP 58006954A JP 695483 A JP695483 A JP 695483A JP S6361173 B2 JPS6361173 B2 JP S6361173B2
Authority
JP
Japan
Prior art keywords
welding
fabric
fiber
fabrics
sparks
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.)
Expired
Application number
JP58006954A
Other languages
Japanese (ja)
Other versions
JPS59131421A (en
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 filed Critical
Priority to JP58006954A priority Critical patent/JPS59131421A/en
Publication of JPS59131421A publication Critical patent/JPS59131421A/en
Publication of JPS6361173B2 publication Critical patent/JPS6361173B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、繊維布帛に高周波ウエルダ加工を施
して仕上げる方法に関するものである。 〔従来の技術〕 有機高分子物質就中繊維布帛には高周波ウエル
ダ加工を施し易いものもあれば施し難いものもあ
る。 高周波ウエルダ加工の施し難い繊維布帛の加工
にあつては、繊維布帛にエチレングリコール、グ
リセリン、ポリエチレングリコール、ポリプロピ
レングリコール等の極性のある多価アルコールを
付与し、或は、硼酸ナトリウムや炭酸ナトリウム
等の電解質物質を付与し、又は、鉄、クロム、コ
バルト、ニツケル等の強磁性の金属や合金の微粉
末を付与する等の処理がなされる。そのような強
磁性の金属としては酸化鉄や酸化クロムがウエル
ダ改善に良いと言われている。 高周波ウエルダ加工の施し難い繊維布帛の加工
に関して、本出願人は特願昭56−144211及び特願
昭56−144212において、縮合硫酸化合物や縮合リ
ン酸化合物が繊維布帛のウエルダ性改善に効果的
であることを開示し、その後、ハロゲン化合物を
含有する化合物が繊維布帛のウエルダ適性改善に
好都合であることを見出している。 〔発明が解決しようとする課題〕 ウエルダ適性を有する繊維布帛も、又、ウエル
ダ適性を改善した繊維布帛を高周波ウエルダ加工
就中縫製しようとするとき、その縫製箇所にスパ
ークが発生して溶融孔ができる場合がある。 このスパーク発生の原因につき種々検討する
に、繊維布帛就中繊布や偏布の様に糸が交叉して
できた布帛では、糸が交叉している箇所と交叉し
ない糸と糸の隙間とでは厚みが異なり、布帛全体
を厳密にみれば厚みが不均一になつていると言
え、それ故に印加するプレート電流の分布も不均
一になるのでスパークが生じるものと推考され
た。 更に、このウエルダ加工時に生じるスパークに
関し、繊維布帛のウエルダ適性と金属酸化物との
関係を研明していたところ、意外にも鉄や銅、ク
ロム、ニツケル、コバルト等の金属酸化物とは異
なり、従来ウエルダ適性の改善に無縁のものとさ
れていた金属酸化物がウエルダ加工時に生じるス
パークを防止するのに好都合に作用することを見
い出し、ここに本発明を完成するに到つた。 〔発明の目的〕 即ち本発明は、繊維布帛を使用してウエルダ加
工を行うとき、スパークの発生を予防し縫製箇所
にスパークによる溶融痕が出来ないようにするこ
とを目的とするものである。 〔発明の構成〕 本発明は上記の目的を達成するものであり、繊
維布帛をウエルダ加工するに際し、そのウエルダ
印加箇所に、アルミニウム、アンチモンおよびマ
グネシウムの何れか1種以上の酸化物を介在せし
めることを要旨とするものである。 即ち本発明は、酸化クロムや酸化鉄が前記の通
り布帛のウエルダ適性の改善にプラスの要因とし
て作用するのに対し、アルミニウム、マグネシウ
ムおよびアンチモンの酸化物がそれらの酸化クロ
ムや酸化鉄とは異なりウエルダ適性の改善にプラ
ス要因としては作用しないがウエルダ加工時のス
パーク防止に有効であるとの知見を得て完成され
たものである。 更に詳しく述べると、本発明に適用する酸化物
の中でも特に酸化マグネシウムがスパーク防止に
好適であり、この酸化マグネシウムは塩化物の
形、具体的に言えば珪酸や水酸化アルミニウム等
とともに天然産の珪酸塩として酸化マグネシウム
を含むタルクの形で適用することも出来る。 酸化アルミニウム、酸化アンチモンおよび酸化
マグネシウムが繊維布帛のスパーク防止に有効に
作用する理由については必ずしも明らかではない
が、これらのものは印加される高周波に励起され
ず、従つて高周波により発熱し繊維を加熱して溶
着させるという繊維布帛のウエルダ適性の改善に
寄与しない物質でも繊維よりも高い導電性を有
し、それらが印加するプレート間に生じるプレー
ト電流を分散させ、それによつて繊維密度や布帛
の厚みのバラツキにかかわらずに布帛内部にプレ
ート電流が不均一に分布することがないように作
用するためと考えられる。 繊維布帛に付与するアルミニウム、アンチモン
およびマグネシウムの中から選ばれる何れか1種
以上の酸化物(以下、これらの酸化物をウエルダ
助剤と称する。)は、微粉末の状態でバインダー
と共に用いることが出来、その際のバインダーと
しては酢酸ビニルやアクリル酸エステル、塩化ビ
ニル等の樹脂溶液が使用され、これらのバインダ
ーは特に作業性を考慮してエマルジヨン型のもの
を用いること、即ち、これらのウエルダ助剤を樹
脂エマルジヨンに配合して繊維布帛に塗布し、或
は、それらの配合したエマルジヨン組成物の中に
繊維布帛を浸漬・絞液して付与するとよい。 この場合、ウエルダ助剤の繊維布帛への適用量
は、エマルジヨン組成物の付着量やエマルジヨン
組成物中に占めるウエルダ助剤の配合比率、繊維
布帛に要求される仕上がり風合、繊維布帛の厚
み、高周波ウエルダ加工条件(プレート電圧、通
電時間)等に応じて適宜加減する。 〔発明の効果〕 上記の通り本発明によると、高周波ウエルダ加
工に際して被加工物又は被加工箇所にウエルダ助
剤を介在させて高周波を印加することによつてス
パークの発生が有効に防止され、スパークによる
溶融孔や孔裂き欠点のないウエルダ加工繊維製品
が得られ、特に、厚手のクツシヨン・シートの上
に載せ強く押圧してエンボス仕上げられる車両天
井な車両壁面、座席、椅子張用等の内装材、その
中でもハロゲン化合物系防炎剤で難燃処理されウ
エルダ適性のよい車両用内装布帛の高周波ウエル
ダ縫製加工において本発明は頗る好都合である。 実施例 1 ナイロン織布(目付300g/m2)の裏面にアク
リル樹脂エマルジヨン100重量部(固形分の重量
部をいう。以下同じ)とハロゲン系防炎剤(丸菱
油化K.K.製「ノンネン79」140部とタルク10部と
から成るエマルジヨン樹脂組成物を100g/m2
(乾燥重量をいう。以下同じ)塗布し、このナイ
ロン織布を発泡倍率40倍で10mm厚のウレタンフオ
ームシートの上に前記塗布面を下にして重ね、そ
のウレタンフオームシートの下にナイロン不織布
(目付40g/m2)をおき、これらのナイロン織布
とウレタンフオームシートとナイロン不織布の積
層物をパール工業K.K.製R−200型高周波ウエル
ダ機(最大高周波出力3KW、周波数41.14MHz、
印加プレート幅2.5mm×長さ130mm)にして押圧印
加してウエルダ縫着させた。 比較例 1 前記実施例1に使用したナイロン織布の裏面に
アクリル樹脂エマルジヨン100部とハロゲン系防
炎剤(丸菱油化K.K.製「ノンネン」)140部とか
ら成るエマルジヨン樹脂組成物を100g/m2塗布
し、このナイロン織布を前記実施例1に使用した
ウレタンフオームシートの上に前記塗布面を下に
して重ね、そのウレタンフオームシートの下に前
記実施例1に使用したナイロン不織布をおき、前
記実施例1と同様にしてウエルダ縫着を行つた。 実施例 2 前記実施例1に使用のナイロン織布の裏面にア
クリル樹脂エマルジヨン100部及び塩化ビニリデ
ン樹脂エマルジヨン70部をハロゲン系防炎剤(丸
菱油化K.K.製「ノンネンD−21」)70部とタルク
10部からなるエマルジヨン樹脂組成物を100g/
m2塗布し、このナイロン織布を前記実施例1に使
用したウレタンフオームシートの上に前記塗布面
を下にして重ね、そのウレタンフオームシートの
下に前記実施例1に使用したナイロン不織布をお
き、前記実施例1と同様にしてウエルダ縫着を行
つた。 比較例 2 前記実施例1に使用のナイロン織布の裏面にア
クリル樹脂エマルジヨン100部及び塩化ビニリデ
ン樹脂エマルジヨン70部とハロゲン系防炎剤(丸
菱油化K.K.製「ノンネンD−2」)70部とから成
るエマルジヨン樹脂組成物を100g/m2塗布し、
このナイロン織布を前記実施例1に使用したウレ
タンフオームシートの上に前記塗布面を下にして
重ね、そのウレタンフオームシートの下に前記実
施例1に使用したナイロン不織布をおき、前記実
施例1と同様にしてウエルダ縫着を行つた。 上記の実施例1、2と比較例1、2との試験結
果はウエルダ加工時の通電時間及びプレート電流
と共に次表に示され、それによりウエルダ加工に
おいてスパークの発生が激減し、孔裂き欠点が有
効に回避される本発明の効果が理解されよう。 【表】
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of finishing a fiber fabric by subjecting it to high frequency welding. [Prior Art] Some organic polymer substances, especially fiber fabrics, are easy to apply high frequency welding to, while others are difficult to apply. When processing fiber fabrics that are difficult to perform high-frequency welding, polar polyhydric alcohols such as ethylene glycol, glycerin, polyethylene glycol, and polypropylene glycol are applied to the fabric, or sodium borate, sodium carbonate, etc. Treatments include applying an electrolyte substance or applying fine powder of a ferromagnetic metal or alloy such as iron, chromium, cobalt, or nickel. As such ferromagnetic metals, iron oxide and chromium oxide are said to be good for improving welding. Regarding the processing of fiber fabrics that are difficult to perform high-frequency welding processing, the present applicant has proposed in Japanese Patent Applications 1982-144211 and 1983-144212 that condensed sulfuric acid compounds and condensed phosphoric acid compounds are effective in improving the weldability of fiber fabrics. It has been discovered that compounds containing halogen compounds are advantageous for improving the weldability of fiber fabrics. [Problems to be Solved by the Invention] When a fiber fabric with weldability or improved weldability is subjected to high-frequency welding processing or sewing, sparks are generated at the sewing location and melt holes are formed. There are cases where it is possible. When examining various causes of this spark generation, we found that in fiber fabrics, such as medium-woven fabrics and fabrics made of yarns that intersect, there is a difference in thickness between the areas where the yarns intersect and the gaps between the yarns that do not intersect. It was assumed that sparks were generated because the thickness of the fabric was different, and the thickness of the fabric as a whole was non-uniform.Therefore, the distribution of the applied plate current was also non-uniform, causing sparks. Furthermore, regarding the sparks generated during welding, we were studying the relationship between the welding suitability of fiber fabrics and metal oxides, and surprisingly found that unlike metal oxides such as iron, copper, chromium, nickel, and cobalt, The present inventors have discovered that metal oxides, which have heretofore been thought to have no effect on improving welding suitability, act favorably in preventing sparks generated during welding processing, and have now completed the present invention. [Object of the Invention] That is, an object of the present invention is to prevent the generation of sparks and to prevent melting marks caused by sparks from being formed at the sewing locations when welding a fiber fabric. [Structure of the Invention] The present invention achieves the above object, and includes interposing an oxide of one or more of aluminum, antimony, and magnesium in the welding area when welding a fiber fabric. The main points are as follows. That is, in the present invention, chromium oxide and iron oxide act as positive factors in improving the weldability of fabrics as described above, while oxides of aluminum, magnesium, and antimony, unlike those chromium oxide and iron oxide, It was completed based on the knowledge that although it does not act as a positive factor in improving welding suitability, it is effective in preventing sparks during welding processing. More specifically, among the oxides applicable to the present invention, magnesium oxide is particularly suitable for preventing sparks, and this magnesium oxide is in the form of chloride, specifically silicic acid, aluminum hydroxide, etc., as well as naturally occurring silicic acid. It can also be applied in the form of talc containing magnesium oxide as a salt. It is not necessarily clear why aluminum oxide, antimony oxide, and magnesium oxide are effective in preventing sparks in textile fabrics, but these substances are not excited by the applied high frequency, and therefore generate heat due to the high frequency and heat the fibers. Even substances that do not contribute to improving the weldability of fiber fabrics by welding them have higher conductivity than the fibers, and they disperse the plate current generated between the plates to which they are applied, thereby improving fiber density and fabric thickness. This is thought to be because the plate current is prevented from being unevenly distributed inside the fabric regardless of the variation in the current. Any one or more oxides selected from aluminum, antimony, and magnesium (hereinafter these oxides are referred to as welding aids) to be applied to the fiber fabric can be used together with the binder in the form of fine powder. Resin solutions such as vinyl acetate, acrylic esters, and vinyl chloride are used as binders in this case, and these binders should be of emulsion type, especially considering workability. The agent may be blended into a resin emulsion and applied to the fiber fabric, or the fiber fabric may be applied by dipping and squeezing the blended emulsion composition. In this case, the amount of the welding aid applied to the fiber fabric depends on the amount of the emulsion composition attached, the blending ratio of the welding aid in the emulsion composition, the finished texture required for the fiber fabric, the thickness of the fiber fabric, Adjust as appropriate depending on the high frequency welding conditions (plate voltage, energization time), etc. [Effects of the Invention] As described above, according to the present invention, generation of sparks can be effectively prevented by applying high frequency waves to the workpiece or the workpiece area with a welding aid interposed during high-frequency welding, and the generation of sparks can be effectively prevented. Welded fiber products with no defects such as melt holes or tearing are obtained, and are particularly suitable for interior materials such as vehicle ceilings, vehicle walls, seats, and upholstery that can be embossed by placing them on thick cushion sheets and pressing them hard. Among these, the present invention is particularly advantageous in high-frequency welding processing of vehicle interior fabrics that have been flame retardant treated with a halogen compound flame retardant and have good weldability. Example 1 100 parts by weight of an acrylic resin emulsion (referring to parts by weight of solid content; the same applies hereinafter ) and a halogen flame retardant (Nonne 79 manufactured by Marubishi Yuka KK) were applied to the back side of a nylon woven fabric (basis weight 300 g/m 2 ). 100 g/m 2 of an emulsion resin composition consisting of 140 parts of `` and 10 parts of talc.
(Referring to dry weight. The same applies hereinafter.) This nylon woven fabric is layered with the coated side facing down on a 10 mm thick urethane foam sheet with a foaming ratio of 40 times, and the nylon non-woven fabric ( The laminate of these nylon woven fabrics, urethane foam sheets, and nylon nonwoven fabrics was placed using a Pearl Kogyo KK model R-200 high frequency welding machine (maximum high frequency output 3KW, frequency 41.14MHz,
Pressure was applied using an application plate (width: 2.5 mm x length: 130 mm) for welding. Comparative Example 1 100 g of an emulsion resin composition consisting of 100 parts of an acrylic resin emulsion and 140 parts of a halogen flame retardant (“Nonne” manufactured by Marubishi Yuka KK) was applied to the back side of the nylon woven fabric used in Example 1. m 2 coated, this nylon woven fabric was placed on the urethane foam sheet used in Example 1 above with the coated side facing down, and the nylon nonwoven fabric used in Example 1 was placed under the urethane foam sheet. Welding was performed in the same manner as in Example 1 above. Example 2 On the back side of the nylon fabric used in Example 1, 100 parts of acrylic resin emulsion and 70 parts of vinylidene chloride resin emulsion were added to 70 parts of a halogen flame retardant ("Nonne D-21" manufactured by Marubishi Yuka KK). and talc
100 g of emulsion resin composition consisting of 10 parts/
The nylon woven fabric was placed on the urethane foam sheet used in Example 1 with the coated side facing down, and the nylon nonwoven fabric used in Example 1 was placed under the urethane foam sheet. Welding was performed in the same manner as in Example 1 above. Comparative Example 2 100 parts of acrylic resin emulsion, 70 parts of vinylidene chloride resin emulsion, and 70 parts of halogen flame retardant ("Nonne D-2" manufactured by Marubishi Yuka KK) were added to the back side of the nylon woven fabric used in Example 1. Apply 100 g/m 2 of an emulsion resin composition consisting of
This nylon woven fabric was placed on the urethane foam sheet used in Example 1 with the coated side facing down, and the nylon nonwoven fabric used in Example 1 was placed under the urethane foam sheet. Welding was performed in the same manner as above. The test results of Examples 1 and 2 and Comparative Examples 1 and 2 above are shown in the table below, along with the current application time and plate current during welding, and as a result, the generation of sparks in welding is drastically reduced, and hole tearing defects are eliminated. It will be appreciated that the effects of the present invention are effectively avoided. 【table】

Claims (1)

【特許請求の範囲】 1 繊維布帛をウエルダ加工するに際し、そのウ
エルダ印加個所に、アルミニウム、アンチモンお
よびマグネシウムの何れか1種以上の酸化物を介
在せしめることを特徴とするウエルダ加工法。 2 前掲特許請求の範囲第1項におけるマグネシ
ウムの酸化物がタルクである前掲特許請求の範囲
第1項に記載のウエルダ加工法。
[Scope of Claims] 1. A welding method characterized in that when welding a fiber fabric, an oxide of one or more of aluminum, antimony, and magnesium is interposed in the welding area. 2. The welding method according to claim 1, wherein the magnesium oxide in claim 1 is talc.
JP58006954A 1983-01-17 1983-01-17 High frequency welding process, cloth to be welded and welding assistant Granted JPS59131421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58006954A JPS59131421A (en) 1983-01-17 1983-01-17 High frequency welding process, cloth to be welded and welding assistant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58006954A JPS59131421A (en) 1983-01-17 1983-01-17 High frequency welding process, cloth to be welded and welding assistant

Publications (2)

Publication Number Publication Date
JPS59131421A JPS59131421A (en) 1984-07-28
JPS6361173B2 true JPS6361173B2 (en) 1988-11-28

Family

ID=11652616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58006954A Granted JPS59131421A (en) 1983-01-17 1983-01-17 High frequency welding process, cloth to be welded and welding assistant

Country Status (1)

Country Link
JP (1) JPS59131421A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5519165A (en) * 1978-07-26 1980-02-09 Shiyougo Eguchi Filth deodorizing method
JPS57178822A (en) * 1981-04-30 1982-11-04 Akira Washida Method of welding ethylene tetrafluoride by high- frequency resistance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5519165A (en) * 1978-07-26 1980-02-09 Shiyougo Eguchi Filth deodorizing method
JPS57178822A (en) * 1981-04-30 1982-11-04 Akira Washida Method of welding ethylene tetrafluoride by high- frequency resistance

Also Published As

Publication number Publication date
JPS59131421A (en) 1984-07-28

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