JPH03240518A - Manufacture of polyvinyl chloride sheet - Google Patents
Manufacture of polyvinyl chloride sheetInfo
- Publication number
- JPH03240518A JPH03240518A JP3768690A JP3768690A JPH03240518A JP H03240518 A JPH03240518 A JP H03240518A JP 3768690 A JP3768690 A JP 3768690A JP 3768690 A JP3768690 A JP 3768690A JP H03240518 A JPH03240518 A JP H03240518A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- sheet
- thickness
- die
- vinyl chloride
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 229920000915 polyvinyl chloride Polymers 0.000 title abstract 3
- 239000004800 polyvinyl chloride Substances 0.000 title abstract 3
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 13
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 30
- 238000000034 method Methods 0.000 abstract description 24
- 238000004049 embossing Methods 0.000 abstract description 14
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010011732 Cyst Diseases 0.000 description 1
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000006084 composite stabilizer Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 208000031513 cyst Diseases 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Abstract
Description
本発明は塩化ビニールシートの製造方法に関し、詳しく
はシートのＴダイ法押出戚形のエンボス加工において良
好な深シボの賦形を行なうための製造方法に関するもの
である。
【従来の技術】
塩化ビニールシートの製造方法としてはＴダイとカレン
ダー法がある。特に、肉厚の塩化ビニールシートにはラ
ミネート工程のいらないＴダイ法が有利とされている。
カレンダー法によって塩化ビニールのシートを製造する
場合、厚みが大きくなると空気の巻き込みによる気泡等
が発生しやすくなる。このため肉厚のシートを得るため
には、はじめに薄いシートを製造し、それをラミネート
する方法が用いられる。この方法では工程が長くなり、
生産効率が低下する事からＴダイ法を用いる場合が多く
なっている。
Ｔダイ法を用いてシボ模様をもった一般的な厚さ０．
３ｍｍの塩化ビニールシートを製造する場合、一般には
Ｔダイより押し出された溶融シートを彫刻ロールとバッ
クロールで挟んでシートの表面にシボ模様を付加するエ
ンボス加工の方法が用いられる。この場合シボが深くな
るにっれ賦形性が低下する傾向が見られるがシートの肉
厚が大きくなるにつれこの傾向は改善される。しかし、
例えばＱ、 ３ｍｍ以上のシートでもシボの深さがシ
ートの肉厚以上になると賦形性が低下する為、そのよう
な製品は射出成形やプレス成形で製造されているがＴダ
イ法押成形に比べ生産性が低い。The present invention relates to a method for producing a vinyl chloride sheet, and more particularly, to a method for producing a good deep grain in embossing of a sheet by T-die extrusion. [Prior Art] Methods for producing vinyl chloride sheets include T-die and calender methods. The T-die method, which does not require a laminating process, is particularly advantageous for thick vinyl chloride sheets. When producing a vinyl chloride sheet by the calendering method, the larger the thickness, the more likely air bubbles will be generated due to air entrainment. Therefore, in order to obtain a thick sheet, a method is used in which a thin sheet is first manufactured and then laminated. This method takes a long time,
Since production efficiency decreases, the T-die method is often used. Typical thickness: 0.0mm with grain pattern using T-die method.
When manufacturing a 3 mm vinyl chloride sheet, an embossing method is generally used in which a molten sheet extruded from a T-die is sandwiched between an engraving roll and a back roll to add a textured pattern to the surface of the sheet. In this case, there is a tendency for the shapeability to deteriorate as the grain becomes deeper, but this tendency improves as the thickness of the sheet increases. but,
For example, Q: Even if the sheet is 3 mm or more, if the depth of the grain is greater than the thickness of the sheet, the formability will deteriorate, so such products are manufactured by injection molding or press molding, but T-die extrusion molding is not suitable. Productivity is lower than that.
Ｔダイ法押出し成形方法で０． ８ｍｍ以上の肉厚もの
に深いシボ模様のエンボス賦形するためには、凹凸の大
きな彫刻ロールの奥深くに溶融した塩化ビニール樹脂を
押し込む必要がある。これを実現するためには溶融シー
トの温度を高くして塩化ビニール樹脂の溶融粘度を下げ
彫刻部に流入させる方法と溶融シートを挟む彫刻ロール
とバックロールの間に高い圧力を加え塩化ビニール樹脂
を彫刻部に圧入する方法がある。溶融樹脂の温度を高く
する場合ｌ・こはＴダイや押出機の温度を上げればよい
が溶融粘度が低下する結果Ｔダイと彫刻ロールの間でシ
ートが自重で垂れてしまいシートの厚みや表面の仕上が
りが不安定となる。このため良好な製品を安定して製造
する事が困難となる。またＴダイや押出機の温度を上げ
る事はＰｖｃ樹脂の劣化を招きかねず製造の長期安定性
を損なう事にもなりかねない。
一方、高い圧力を加える場合には高い圧力に耐えられる
ようにロールやそれを組み込むフＩ／−ムの強度を大き
くするとともに能力の大きな加圧装置が必要となり設備
投資金額が高くなるという問題が生じる。またこの圧力
はロールの両端に設置された空気圧式や油圧式の加圧装
置を用いて加えられるため、ロールの両端部では有効で
あるがロールの長さが大きくなるにつれ中央部ではシー
トの肉厚によって彫刻ロールとバックロールの間隙が押
し広げられ両方のロールに撓みを生じる傾向がある。
この為、特に肉厚のシートでは幅が広くなると、ロール
の両端部では良好なシボ形状が得られても中央部では不
十分となったり、逆に中央部では良好なシボ形状が得ら
れても両端部では余剰分がたまりバンクを生じて外観不
良が発生したりする。
更に彫刻ロールの奥深くに溶融した塩化ビニール樹脂を
押し込む事ができてもこれを十分冷却しないと巻取りの
張力によってシボ模様が変形し商品価値を損なうことに
なる。
本発明はこれらの問題を解決し設備投資金額の増大を抑
えつつ、良好な深シボをもつ肉厚塩化ビニールシートを
安定して製造する方法を提供する事を目的とする。0.0 with T-die extrusion molding method. In order to emboss a deep grain pattern on a wall thickness of 8 mm or more, it is necessary to push molten vinyl chloride resin deep into an engraved roll with large irregularities. In order to achieve this, there is a method of increasing the temperature of the molten sheet to lower the molten viscosity of the vinyl chloride resin and allowing it to flow into the engraving section, and a method of applying high pressure between the engraving roll and back roll that sandwich the molten sheet to increase the vinyl chloride resin. There is a method of press-fitting into the engraving part. If you want to raise the temperature of the molten resin, you can raise the temperature of the T-die or extruder, but as a result, the viscosity of the melt decreases, and the sheet sag under its own weight between the T-die and the engraving roll, causing problems with the thickness and surface of the sheet. The finish becomes unstable. This makes it difficult to stably manufacture good products. In addition, raising the temperature of the T-die or extruder may cause deterioration of the PVC resin, which may impair the long-term stability of production. On the other hand, when applying high pressure, the strength of the roll and the film that incorporates it must be increased in order to withstand the high pressure, and a pressurizing device with a large capacity is required, resulting in an increase in capital investment. arise. In addition, this pressure is applied using pneumatic or hydraulic pressure devices installed at both ends of the roll, so it is effective at both ends of the roll, but as the length of the roll increases, the thickness of the sheet increases in the center. The thickness tends to widen the gap between the engraving roll and the back roll, causing both rolls to flex. For this reason, when the width of a particularly thick sheet increases, even if a good grain shape is obtained at both ends of the roll, it may be insufficient in the center, or conversely, a good grain shape may not be obtained at the center. Also, excess material accumulates at both ends, creating banks and causing poor appearance. Furthermore, even if it is possible to push the molten vinyl chloride resin deep into the engraving roll, if it is not cooled sufficiently, the grain pattern will be deformed by the tension of winding and the product value will be lost. It is an object of the present invention to solve these problems and provide a method for stably manufacturing thick vinyl chloride sheets with good deep grains while suppressing an increase in capital investment.
本発明は、Ｔダイ法塩化ビニールシートの製造７Ｔ法に
おいて、厚さ０．８ｍｍ以上の原反シートを、金属製の
彫刻ロールとゴム張りのバックロールの間に挟み、バッ
クロールを冷却金属ロールに接触させるシボ模様塩化ビ
ニールシートの製造方法、およびバックロールの回転軸
を動かしロールクロシングを行なうシボ模様塩化ビニー
ルシートの製造方法、およびエンボス加工し、その後タ
ッチロールで加圧するシボ模様塩化ビニールシートの製
造方法である。
図面を参照し、より詳細に説明するがこれに限定される
ものではない。
本発明のバックロール（４）は、Ｔダイから出た塩化ビ
ニールシート原反を彫刻ロール（３）に加圧するもので
あり、表面がゴム張りである。ゴム材料としては、クロ
ロプレンゴム、ＥＰＲ，シリコンゴム等が例示できる。
バックロールの心材は金属ロールで、水または熱媒油な
どの媒体を通して熱を除去できる構造が好ましい。
本発明のロールクロシングとは、彫刻ロール（３）の回
転軸に対して、バックロール（４）の回転軸を動かし回
転軸を平行にせず若干交差状にすることであり、両端で
の間隔が広がる。移動量は原反シートの厚さ、幅により
選ばれ、ロール長さ１ｍあたり両端で０． ２〜５１Ｉ
ｌｌ１１が好ましい。
本発明の冷却金属ロール（５）は、水または熱媒油など
の媒体を通した金属ロールで、ゴム張りのバックロール
（４）と接触させ熱を除去するためであり、シー１−（
７）と接しない位置であればよく、複数でもよい。
本発明のクツチロール（６）は、金属製の彫刻ロール（
３）とゴム張りのバックロール（４）の間に挟みエンボ
ス加工したシートを、その後加圧するロールである。タ
ッチロール（６）は、ゴムロール、金属ロールが使用で
きるがロール面の温度が一定に保ちやすい点で水または
熱媒油などの媒体を通した金属ロールか好ましい。
本発明は、Ｔダイ出口と彫刻ロールの間にヒーター（２
）で加熱してもよく、加熱しなくてもよい。Ｔダイと彫
刻ロールとの間の加熱方法は、電熱ヒーター 赤外線ラ
ンプタイプ、ガスバーナーなどいずれの方法でもよいが
、温度調節の関係から電熱ヒーターが好ましい。またヒ
ーターを複数個設置して加熱量をブロック別に調節して
もよく、これにより広幅製品の場合に起こりやすいエン
ボス前のシートの温度のバラツキを解消し均一な賦形を
行なう事ができので、設置の方が好ましい。
本発明のＴダイは、ストレート型、コートハンガー型な
といずれでもよく、Ｔダイ出口は、垂直出し、水平出し
があり、垂直出しでは、シートが自重て垂れてしまいシ
ートの厚みや表面の仕上がりが不安定となり、良好な製
品を安定して製造しにくいので、水平出しの方が好まし
い。
本発明の塩化ビニールシートの厚さは、厚物であり、彫
刻ロール前のシート厚さ０． ８＋ｎｍ以上であり、得
られた塩化ビニールシートは、そのシート模様で異なり
、肉厚部、肉薄部がある。
本発明において使用する塩化ビニール樹脂は、塩化ビニ
ール単独重合体のほか、塩化ビニールを主体とし、これ
と共重合可能な単量体との共重合体およびこれらのブレ
ンド物並びにこれらと他の重合体、共重合体とのブレン
ド物を含む。本発明の塩化ビニール樹脂には、可塑剤、
滑剤、熱安定剤、スリップ剤、紫外線吸収剤、顔料等を
本発明の目的を阻害しない範囲で含むことができる。な
かでも可塑剤の使用量は、塩化ビニール重合体ｔ００重
量部に対し、可塑剤２５〜２００重量部が柔軟性を増す
ために好ましく配合される。The present invention uses the 7T method for producing vinyl chloride sheets using the T-die method, in which an original sheet with a thickness of 0.8 mm or more is sandwiched between a metal engraving roll and a rubber-covered back roll, and the back roll is replaced by a cooling metal roll. A method for manufacturing a grained vinyl chloride sheet in which the sheet is brought into contact with a grained vinyl chloride sheet, a method for manufacturing a grained vinyl chloride sheet in which roll crossing is performed by moving the rotating shaft of a back roll, and a grained vinyl chloride sheet in which the sheet is embossed and then pressurized with a touch roll. This is a manufacturing method. A more detailed explanation will be given with reference to the drawings, but the invention is not limited thereto. The back roll (4) of the present invention presses the original vinyl chloride sheet produced from the T-die against the engraving roll (3), and has a rubberized surface. Examples of the rubber material include chloroprene rubber, EPR, and silicone rubber. The core material of the back roll is preferably a metal roll, with a structure that allows heat to be removed through a medium such as water or heat transfer oil. Roll crossing of the present invention means moving the rotation axis of the back roll (4) with respect to the rotation axis of the engraving roll (3) so that the rotation axis is not parallel but slightly intersecting, and the interval at both ends is spreads. The amount of movement is selected depending on the thickness and width of the raw sheet, and is 0.00 mm at both ends per 1 m of roll length. 2-51I
ll11 is preferred. The cooling metal roll (5) of the present invention is a metal roll through which a medium such as water or heat transfer oil is passed, and is brought into contact with the rubber-covered back roll (4) to remove heat.
7), as long as it is not in contact with 7), and there may be a plurality of positions. The cutlet roll (6) of the present invention is a metal engraving roll (
3) and a rubber-covered back roll (4) to press the embossed sheet. As the touch roll (6), a rubber roll or a metal roll can be used, but a metal roll through which a medium such as water or thermal oil is passed is preferable since the temperature of the roll surface can be easily kept constant. The present invention provides a heater (2) between the T-die outlet and the engraving roll.
) may or may not be heated. The heating method between the T-die and the engraving roll may be any method such as an electric heater, an infrared lamp type, or a gas burner, but an electric heater is preferable in terms of temperature control. In addition, multiple heaters may be installed to adjust the amount of heating for each block, which eliminates variations in the temperature of the sheet before embossing that often occur with wide products, and enables uniform shaping. Installation is preferable. The T-die of the present invention may be either a straight type or a coat hanger type, and the T-die exit can be vertical or horizontal.If the T-die is output vertically, the sheet will sag due to its own weight, resulting in poor sheet thickness and surface finish. Leveling is preferable because it becomes unstable and it is difficult to stably manufacture good products. The thickness of the vinyl chloride sheet of the present invention is thick, and the sheet thickness before the engraving roll is 0. 8+nm or more, and the resulting vinyl chloride sheet has different sheet patterns, including thick and thin parts. In addition to vinyl chloride homopolymers, the vinyl chloride resin used in the present invention includes copolymers mainly composed of vinyl chloride with monomers that can be copolymerized with it, blends thereof, and other polymers with these. , including blends with copolymers. The vinyl chloride resin of the present invention includes a plasticizer,
A lubricant, a heat stabilizer, a slip agent, an ultraviolet absorber, a pigment, etc. may be contained within the range that does not impede the object of the present invention. Among these, the amount of plasticizer used is preferably 25 to 200 parts by weight per t00 parts by weight of the vinyl chloride polymer in order to increase flexibility.
本発明は、Ｔダイから押出された原反シートにエンボス
加工を行なうにあたってゴム張りのバックロールを使用
するのて、押出量の変動等に伴う厚みの変動を吸収させ
る事ができた。
本発明は、原反シートにエンボス加工を行なうにあたっ
てゴム張りのバックロールを使用し押出量の変動等に伴
う厚みの変動を吸収させる事により、 １．３ｍｍの肉
厚のシートから１ｍｍの深シボ模様の塩化ビニールシー
トを形状よく、生産効率よく安定して製造できた。特に
シートの幅が１０００ｍｍ以」二の場合に効果があった
。
本発明は、ロールクロシングを行なうことによい、ロー
ルの挟みによるシボ形状の悪化等の外観不良の発生をよ
り防止できることができた。これによって、シート幅方
向での厚さを均一にでき、外観不良を生しることなく、
幅方向の中央、両端共に彫刻ロール通り形状よく、生産
効率よく安定して製造できた。
本発明は、バックロールを冷却金属ロールに接触させる
ことにより、バックロールのゴムの表面温度の上昇を抑
えてエンボス加工されたシートの冷却効果を高めること
ができた。
本発明は、エンボス加工の後に更にタッチロールで加圧
し冷却することにより、賦形をより完全にすることがで
きた。特にシートのライン速度が大きくなると効果があ
った。
本発明により得られたシボ模様シートは、気泡がなく、
焼け、樹脂劣化がなく、保冷カーテン、土木シートなど
の厚もの塩化ビニールシートとして好適に使用できる。In the present invention, by using a rubber-covered back roll when embossing a raw sheet extruded from a T-die, it was possible to absorb variations in thickness due to variations in extrusion amount, etc. The present invention uses a rubber-covered back roll when embossing a raw sheet to absorb changes in thickness caused by changes in the extrusion amount, thereby making it possible to create deep wrinkles of 1 mm from a sheet with a thickness of 1.3 mm. We were able to stably produce patterned vinyl chloride sheets with good shape and production efficiency. It was particularly effective when the width of the sheet was 1000 mm or more. The present invention is good for performing roll crossing, and can further prevent appearance defects such as deterioration of grain shape due to roll pinching. This makes it possible to make the thickness of the sheet uniform in the width direction, without causing any appearance defects.
Both the center and both ends in the width direction had the same shape as the engraving roll, and could be manufactured stably with high production efficiency. In the present invention, by bringing the back roll into contact with a cooling metal roll, it was possible to suppress an increase in the surface temperature of the rubber of the back roll and enhance the cooling effect of the embossed sheet. In the present invention, by further applying pressure with a touch roll and cooling after embossing, it was possible to achieve more perfect shaping. Particularly effective was the increase in sheet line speed. The textured sheet obtained by the present invention is free of air bubbles and
There is no burning or resin deterioration, and it can be suitably used as thick vinyl chloride sheets such as cold curtains and civil engineering sheets.
【実施例１】
日立造船産業■製２軸押出機（ＤＨＴ−１００））了幅
８００ｍｍのコートハンガー型Ｔダイ（１）、第２図の
格子模様シストにするためのエンボス用２５０ｍｍφＸ
１２５０ｍｍの鉄製彫刻ロール（３）、２５０ｍｍφＸ
１２５０ｍｍのシリコンゴム張すバソクロール（４）、
２５０ｍｍφＸ１２５０ｍｍの鉄製冷却ロール（５）、
スライダックに接続した上下可動な電熱ヒーター（２）
を配置した。ヒーターは棒状の石英管ヒーターで、Ｔダ
イ（１）の全幅にわたる５Ｋｗの主ヒータ−（２）１本
と両端部に主ヒーターに平行設置した０、 ５Ｋｗの
補助ヒーター（２）２木からなりそれぞれスライダック
で独立に調節可能とした。これを垂直のガイド支柱に取
り付は上下させてシートしの距離を調節した。
この装置により、共同塩ビ販売−のポリ塩化ビ＝ ７１
／ Ｓ Ｍ （平均分子量：１３（ＩＱ）ニ可塑剤Ｄ
ＯＰ ５０ｐｈｒ、Ｂａ−Ｚｎ系複合安定剤３ｐｈｒを
配合した塩化ビニール樹脂組成物を押出して得たシート
厚さ１．３１温度１８０ ’Ｃ（赤外線非接触タイプ温
度計測定）の原反シートを彫刻ロール（３）とバックロ
ール（４）で挟みエンボス加工を行なった。彫刻ロール
の両端には加圧シリンダーを設置して４に’ｇ／ｃｍ２
の圧力を加え、彫刻ロール（３）は熱媒油により１２０
’Ｃとし、バックロール（４）は鉄心に冷却水を通し
、更に冷却水を通した冷却ロールをゴム面に接触させて
表面温度を８０℃に保持した。Ｔダイ（１）と彫刻ロー
ル・バックロールの間の彫刻ロール側に設置したヒータ
ー（２）の電力と位置を調節して原反シートのシボ付与
面の温度を１９５°Ｃ（赤外線非接触タイプ温度計測定
）とした。シートのライン速度は０． ８ ｍ／ｍｉｎ
であった。エンボス加工されたシートの中央部両端部共
にシボの断面形状は図４（ａ）の様になり、寸−１１＝
法は彫刻ロール通り肉厚部２＋ｎｍ薄肉部１＋＋＋＋＋
＋で突起部は３ｍｍと４ｍｍの台形であった。[Example 1] Twin-screw extruder (DHT-100) manufactured by Hitachi Zosen Sangyo ■ Coat hanger type T-die (1) with a finishing width of 800 mm, 250 mmφX for embossing to create the checkered pattern cyst shown in Figure 2
1250mm iron engraving roll (3), 250mmφX
1250mm silicone rubber basochlor (4),
250mmφX1250mm iron cooling roll (5),
Electric heater that can be moved up and down (2) connected to slideac
was placed. The heater is a rod-shaped quartz tube heater, consisting of one 5Kw main heater (2) that spans the entire width of the T-die (1) and two 0.5Kw auxiliary heaters (2) installed parallel to the main heater at both ends. Each can be adjusted independently using a slider. I attached this to a vertical guide post and moved it up and down to adjust the seat distance. With this equipment, joint PVC sales - PVC = 71
/ S M (average molecular weight: 13 (IQ) 2 plasticizer D
A raw sheet with a thickness of 1.31 and a temperature of 180'C (measured with an infrared non-contact type thermometer) obtained by extruding a vinyl chloride resin composition containing 50 phr of OP and 3 phr of a Ba-Zn composite stabilizer was rolled into an engraving roll. (3) and back roll (4) to perform embossing. Pressure cylinders are installed at both ends of the engraving roll to reduce the pressure to 4'g/cm2.
The engraving roll (3) is heated to 120 degrees by heating oil.
'C, the back roll (4) passed cooling water through the iron core, and the cooling roll through which the cooling water was passed was brought into contact with the rubber surface to maintain the surface temperature at 80°C. By adjusting the power and position of the heater (2) installed on the engraving roll side between the T-die (1) and the engraving roll/back roll, the temperature of the textured surface of the raw sheet is 195°C (infrared non-contact type). (measured with a thermometer). The sheet line speed is 0. 8m/min
Met. The cross-sectional shape of the grain on both ends of the center part of the embossed sheet is as shown in Fig. 4(a), and the dimension is -11 = thick part 2 + nm as per the engraving roll, thin part 1++++++
+, the protrusions were trapezoids of 3 mm and 4 mm.
【実施例２】
Ｔダイの幅を１１００ｍｍに変更した以外は実施例１に
準じてエンボス加工を行なった。シートの中央部ではシ
ボの断面形状は第４図（ａ）の様に彫刻ロール通りの台
形であった。シートの両端部にバンクが発生しその部分
若干スジ等の外観不良が発生したが、実用に耐える程度
であった。Example 2 Embossing was carried out in the same manner as in Example 1, except that the width of the T-die was changed to 1100 mm. In the center of the sheet, the cross-sectional shape of the grain was trapezoidal as shown in the engraving roll, as shown in FIG. 4(a). Banks were formed at both ends of the sheet, and some appearance defects such as streaks occurred in these areas, but it was tolerable for practical use.
【比較例１】
冷却金属ロール（５）をバックロールから離し、ゴム表
面の冷却を停止する以外は実施例２に準じエンボス加工
を行なった。バックロールの表面温度は次第に上昇し９
０″Ｃではシボ模様が製品の巻取り張力により第４図（
ｂ）のように変形し、彫刻ロールとバックロールの間で
シートの両端部にバンクが発生しその部分にスジやシー
）・の破れ等の外観不良が発生した。Comparative Example 1 Embossing was carried out in the same manner as in Example 2, except that the cooling metal roll (5) was separated from the back roll and cooling of the rubber surface was stopped. The surface temperature of the back roll gradually increases9
At 0″C, the grain pattern changes as shown in Figure 4 (
The sheet was deformed as shown in b), and banks were generated at both ends of the sheet between the engraving roll and the back roll, and appearance defects such as streaks and tears occurred in these areas.
【実施例３】
Ｔダイの幅を１１００ｍｍどし、バックロール１２
（４）の回転軸を動かし彫刻ロール（３）に対しロール
面の両端で各１ｍｍのロールクロシングを行なった以外
は実施例１に準じた。エンボス加工されたシートの中央
部両端部共にシボの断面形状は図４（ａ）の様になり、
寸法は彫刻ロール通り肉厚部２Ｉ薄肉部１ｍｍで突起部
は３ｍｍと４１の台形であった。
〔比較例２］
冷却金属ロール（５）をバックロールから離し、ゴム表
面の冷却を停止する以外は実施例３に準じエンボス加工
を行なった。バックロールの表面温度ｉｔ次第に上昇し
９０ ’Ｃではシボ模様が製品の巻取り張力により第４
図（ｂ）のように変形した。[Example 3] Example except that the width of the T-die was set to 1100 mm, and the rotation axis of the back roll 12 (4) was moved to perform roll crossing of 1 mm each at both ends of the roll surface with respect to the engraving roll (3). According to 1. The cross-sectional shape of the grain on both ends of the embossed sheet is as shown in Figure 4(a).
The dimensions were as per the engraving roll: the thick part was 2 mm, the thin part was 1 mm, and the protrusions were 3 mm and 41 trapezoidal. [Comparative Example 2] Embossing was carried out in the same manner as in Example 3, except that the cooling metal roll (5) was separated from the back roll and cooling of the rubber surface was stopped. The surface temperature of the back roll gradually rises to 90'C, and the grain pattern becomes 4th due to the winding tension of the product.
It was deformed as shown in Figure (b).
【実施例４】
Ｔダイの幅を１１００ｍｍとし、シートのライン速度を
１． ６ ｍ／ｍｉｎとし、２５０ｍＩＩｌφＸ１２５
０ｍｍの鉄製タッチロール（６）を加圧させ温水を通し
てタッチロールの表面温度を８０ ’Ｃとする以外は実
施例１に準じエンボス加工をおこなった。シート中央部
のシボの断面形状は図４（ａ）の様になり、寸法は彫刻
ロール通り肉厚部２ｍｍ薄肉部１１で突起部は３１と４
ｍｍの台形であった。シートの両端部にバンクが発生し
その部分若干スジが発生したが、実用に耐える程度であ
った。[Example 4] The width of the T-die was 1100 mm, and the line speed of the sheet was 1. 6 m/min, 250mIIlφX125
Embossing was carried out in the same manner as in Example 1, except that a 0 mm iron touch roll (6) was pressurized and hot water was passed through it to bring the surface temperature of the touch roll to 80'C. The cross-sectional shape of the grain at the center of the sheet is as shown in Fig. 4(a), and the dimensions are as per the engraving roll: the thick part is 2 mm, the thin part 11, and the protrusions are 31 and 4.
It was a trapezoid of mm. Banks were generated at both ends of the sheet, and some streaks were generated in those areas, but it was tolerable for practical use.
第１図は、本発明を説明するための概念側面図。
第２図は、本発明により得られるシート上面図。
第３図は、彫刻ロール断面部分図。
第４図（ａ）は、本発明により得られるシート断面部分
図。
第４図（ｂ）は、比較例により得られるシート断面部分
図。
第５図は、ロールクロシングの概念平面図。
以上FIG. 1 is a conceptual side view for explaining the present invention. FIG. 2 is a top view of a sheet obtained by the present invention. FIG. 3 is a partial cross-sectional view of the engraving roll. FIG. 4(a) is a partial cross-sectional view of a sheet obtained by the present invention. FIG. 4(b) is a partial cross-sectional view of a sheet obtained in a comparative example. FIG. 5 is a conceptual plan view of roll crossing. that's all
Claims (1)
厚さ０．８ｍｍ以上の原反シートを、金属製の彫刻ロー
ルとゴム張りのバックロールの間に挟み、このバックロ
ールを冷却金属ロールに接触させるシボ模様塩化ビニー
ルシートの製造方法。 ２）第１請求項記載のバックロールの回転軸を動かし、
ロールクロシングを行なうシボ模様塩化ビニールシート
の製造方法。 ３）第１請求項記載の彫刻ロールとバックロールの間に
挟んだ後のシートを、タッチロールで加圧するシボ模様
塩化ビニールシートの製造方法。[Claims] 1) In a method for producing a T-die vinyl chloride sheet,
A method for producing a grained vinyl chloride sheet, in which a raw sheet with a thickness of 0.8 mm or more is sandwiched between a metal engraved roll and a rubberized back roll, and the back roll is brought into contact with a cooling metal roll. 2) moving the rotation axis of the back roll according to the first claim;
A method for producing a grained vinyl chloride sheet by roll crossing. 3) A method for producing a grained vinyl chloride sheet, in which the sheet sandwiched between the engraved roll and back roll according to claim 1 is pressed by a touch roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3768690A JP2811344B2 (en) | 1990-02-19 | 1990-02-19 | Manufacturing method of vinyl chloride sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3768690A JP2811344B2 (en) | 1990-02-19 | 1990-02-19 | Manufacturing method of vinyl chloride sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03240518A true JPH03240518A (en) | 1991-10-25 |
| JP2811344B2 JP2811344B2 (en) | 1998-10-15 |
Family
ID=12504466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3768690A Expired - Fee Related JP2811344B2 (en) | 1990-02-19 | 1990-02-19 | Manufacturing method of vinyl chloride sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2811344B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001328164A (en) * | 2000-05-19 | 2001-11-27 | Nippon Synthetic Chem Ind Co Ltd:The | Method for embossing water-soluble film |
| JP2006272918A (en) * | 2005-03-30 | 2006-10-12 | Dainippon Printing Co Ltd | Manufacturing method of embossed sheet, and manufacturing apparatus of embossed sheet |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432116B (en) * | 2006-04-27 | 2012-10-10 | 3M创新有限公司 | Methods of making structured films |
| BRPI0710925A2 (en) | 2006-04-27 | 2011-05-31 | 3M Innovative Properties Co | structured films that have acoustic absorption properties |
-
1990
- 1990-02-19 JP JP3768690A patent/JP2811344B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001328164A (en) * | 2000-05-19 | 2001-11-27 | Nippon Synthetic Chem Ind Co Ltd:The | Method for embossing water-soluble film |
| JP4592150B2 (en) * | 2000-05-19 | 2010-12-01 | 日本合成化学工業株式会社 | Embossing method of water-soluble film |
| JP2006272918A (en) * | 2005-03-30 | 2006-10-12 | Dainippon Printing Co Ltd | Manufacturing method of embossed sheet, and manufacturing apparatus of embossed sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2811344B2 (en) | 1998-10-15 |
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