JP2006272945A - Manufacturing process of non-woven fabric sheet and board lamination made of polyethylene terephthalate type polyester - Google Patents

Manufacturing process of non-woven fabric sheet and board lamination made of polyethylene terephthalate type polyester Download PDF

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JP2006272945A
JP2006272945A JP2005122885A JP2005122885A JP2006272945A JP 2006272945 A JP2006272945 A JP 2006272945A JP 2005122885 A JP2005122885 A JP 2005122885A JP 2005122885 A JP2005122885 A JP 2005122885A JP 2006272945 A JP2006272945 A JP 2006272945A
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polyethylene terephthalate
nonwoven fabric
board
pet
sheet
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Seiji Nakamura
誠司 中村
Masamichi Honda
正道 本多
Takashi Yamauchi
隆 山内
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OYAMA KAGAKU KK
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OYAMA KAGAKU KK
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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that transparent sheets and boards of amorphous PET (A-PET) have a blemish of low added value as they are vulnerable to fine scratch (low scratch resistance) and easy to get dusty due to surface softness, and require market cultivation especially in high added value applications like interior goods, illumination tools and building materials. <P>SOLUTION: The invention is a manufacturing process of non-woven fabric sheets and board lamination, and heat process shaped goods by melting a polyethylene terephthalate type polyester (a) at a temperature above its fusing point in an extruder, and melt bonding it to a non-woven fabric (c) having 50-250 g/m<SP>2</SP>basis weight ratio of the same material, while fabricating into amorphous sheets and boards (b) by casting method. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ポリエチレンテレフタレート系ポリエステル製不織布と同材料のシートおよびボードから成る積層体の製造方法に関する。  The present invention relates to a method for producing a laminate comprising sheets and boards of the same material as a polyethylene terephthalate polyester nonwoven fabric.

近年、自動車の環境適合性と軽量化等の課題から、その内装材がポリ塩化ビニール(PVCと略称す。以下同じ。)からポリプロピレン(PP)およびABS樹脂(ABS)等へ転換されて来た。その理由は、PVCが重く(比重1.35)、可塑剤が環境ホルモンの疑いがあり、焼却処分で発癌性ダイオキシンの発生を免れないが、一方PPおよびABS樹脂は軽く(比重約0.9)、可塑剤を含まず、焼却処分で有毒ガスを発生せず、回収と再利用も出来るからである。他方、ポリエチレンテレフタレート(以下にPET、またはペットと略称する)は、PPやABSの様な油系疎水性樹脂とは異なって、保水性および環境適合性の親水性樹脂であるので、自動車の内装材に、特に不織布として使用されて来た。  In recent years, interior materials have been changed from polyvinyl chloride (abbreviated as PVC, the same shall apply hereinafter) to polypropylene (PP) and ABS resin (ABS) due to issues such as environmental compatibility and weight reduction of automobiles. . The reason is that PVC is heavy (specific gravity 1.35), plasticizer is suspected of environmental hormones, and carcinogenic dioxins are inevitable by incineration, while PP and ABS resin are light (specific gravity about 0.9). ) Because it does not contain plasticizers, does not generate toxic gases during incineration, and can be recovered and reused. On the other hand, polyethylene terephthalate (hereinafter abbreviated as PET or PET) is a hydrophilic resin that is water-retaining and environmentally compatible, unlike oil-based hydrophobic resins such as PP and ABS. It has been used as a material, especially as a non-woven fabric.

最近、省資源および環境保全の観点から、工場生産工程や一般消費市場から回収された使用済みプラスチック製品の再利用の必要性が世界的に認識され、特に、使用済みのPETボトル、フィルム、シート等は、大量の回収再利用が積極的に進められつつあり、汎用樹脂の一般的な価格の半値という安価にて入手が可能となった。従って、本発明者および出願人は、既に回収PETボトル・フレークからマルチフィラメント法によりPET繊維とPET綿を開発・製造し、PET不織布の素材として供給して来た。更に、本発明者および出願人は、最近回収PETボトル・フレークから無延伸PET(Amorphous−PET、A−PET)の透明性シートおよびボードを開発および製造している。  Recently, from the viewpoint of resource conservation and environmental conservation, the necessity of reusing used plastic products collected from factory production process and general consumer market has been recognized worldwide, especially used PET bottles, films and sheets. Are being actively collected and reused, and can be obtained at a low price of half the general price of general-purpose resins. Therefore, the present inventor and the applicant have already developed and manufactured PET fibers and PET cotton from collected PET bottles and flakes by the multifilament method, and supplied them as materials for PET nonwoven fabrics. In addition, the present inventor and applicant have recently developed and manufactured transparent sheets and boards of unstretched PET (Amorphous-PET, A-PET) from recovered PET bottle flakes.

自動車の内装材、特に天井材の表皮、フロア−材の表皮、トランクルーム内張り材などにPET不織布、織編物などが使用されている。例えば、トランクルーム内張り材では、従来異質素材のPPシートが使用されて来たが、更なる回収利用のためには同一素材のPET不織布・PETシートがより一層好ましい。一方、PETーPPの異質素材を積層するために接着剤が必要であるが、安価な接着剤の実用化は困難である。他方、無延伸A−PETの透明性シートおよびボードは、マネキン・ボデー、小売店間仕切板、ネームプレート、看板材、建築資材、建屋インテリヤ材、高速道路の透明性仕切板などに市場が拡大して来た。ポリカーボネートの透明性ボードに比べると耐衝撃性に劣るが、極めて安価であるので一層の拡大が期待されている。  PET nonwoven fabrics, woven and knitted fabrics and the like are used for automobile interior materials, particularly ceiling material skins, floor material skins, trunk room lining materials, and the like. For example, in the trunk room lining material, a PP sheet of a different material has been conventionally used, but the PET nonwoven fabric / PET sheet of the same material is more preferable for further recovery. On the other hand, an adhesive is necessary for laminating heterogeneous materials of PET-PP, but it is difficult to put an inexpensive adhesive into practical use. On the other hand, the market for unstretched A-PET transparency sheets and boards has expanded to mannequin bodies, retail partition plates, nameplates, signage materials, building materials, building interior materials, highway transparent partition plates, etc. I came. Although it is inferior in impact resistance as compared with a polycarbonate transparent board, it is extremely inexpensive and expected to expand further.

本発明が解決しようとする課題Problems to be solved by the present invention

無延伸PET(A−PET)の透明性シートおよびボード(以下に総称して、板と言う)は、安価で成形加工が容易であるという利点をもつが、一方、表面が柔らかいので細かい傷が付き易く(耐スクラッチ性が低い)、埃で汚れ易いという欠点を持つ。透明性シートおよびボードのみでは、誰でも容易に製造できるので、付加価値の高い特徴のある新製品の市場開拓に限界がある。特に、付加価値の高いインテリヤ資材、照明用具および建築資材などの市場開拓が、必要である。  Non-stretched PET (A-PET) transparent sheets and boards (hereinafter collectively referred to as “plates”) have the advantage of being inexpensive and easy to mold, but on the other hand, because the surface is soft, fine scratches are present. It has the disadvantages that it is easy to stick (low scratch resistance) and is easily soiled with dust. Since anyone can easily manufacture with transparent sheets and boards alone, there is a limit to the market development of new products with high added-value characteristics. In particular, it is necessary to develop a market for high value-added interior materials, lighting equipment, and building materials.

課題を解決するための手段Means for solving the problem

本発明は、ポリエチレンテレフタレート系ポリエステル製不織布と同材料のシートおよびボード(板)とから成る積層体の製造方法を提供することを目的とする。本発明者らは、上記の課題を解決すべく鋭意研究を重ねた結果、それらの課題を劇的に改善することに成功し、本発明を完成するに至った。すなわち、本発明は下記の発明事項を提供するものである。  An object of this invention is to provide the manufacturing method of the laminated body which consists of a nonwoven fabric made from a polyethylene terephthalate type polyester, and the sheet | seat and board (plate) of the same material. As a result of intensive studies to solve the above-mentioned problems, the present inventors have succeeded in dramatically improving those problems and completed the present invention. That is, the present invention provides the following invention items.

本発明は、第1に、ポリエチレンテレフタレート系ポリエステル(a)の乾燥樹脂を、押出機中でその融点以上の温度で溶融させるとともに、キャスト法にて無定形シートおよびボード(b)に成形しつつ、ポリエチレンテレフタレート系ポリエステル(a)の不織布(c)に熔融接着することを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法を提供するものである。    In the present invention, firstly, a dry resin of polyethylene terephthalate-based polyester (a) is melted in an extruder at a temperature equal to or higher than its melting point, and formed into an amorphous sheet and a board (b) by a casting method. The present invention provides a method for producing a polyethylene terephthalate-based polyester nonwoven fabric-sheet and board laminate, which is melt-bonded to a nonwoven fabric (c) of polyethylene terephthalate-based polyester (a).

本発明は、第2に、ポリエチレンテレフタレート系ポリエステル(a)の未乾燥樹脂を、押出機中でその融点以上の温度で溶融させるとともに、13.3×103Pa以下の減圧下にて脱気脱水しながら、キャスト法にて無定形シートおよびボード(b)に成形しつつ、ポリエチレンテレフタレート系ポリエステル(a)の不織布(c)に熔融接着することを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法を提供するものである。  In the present invention, secondly, an undried resin of polyethylene terephthalate-based polyester (a) is melted at a temperature equal to or higher than its melting point in an extruder and degassed and dehydrated under reduced pressure of 13.3 × 103 Pa or less. However, a polyethylene terephthalate polyester non-woven fabric sheet and board characterized by being melt-bonded to a polyethylene terephthalate polyester (a) non-woven fabric (c) while being formed into an amorphous sheet and board (b) by a casting method. The manufacturing method of a laminated body is provided.

本発明は、第3に、ポリエチレンテレフタレート系ポリエステル(a)が、固有粘度0.55〜0.80dl/gのPET系芳香族ポリエステル、ポリエチレンテレフタレート系ポリエステル成形品再循環物からなる群から選ばれる少なくとも1種類以上を含有することを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法を提供するものである。  In the present invention, thirdly, the polyethylene terephthalate-based polyester (a) is selected from the group consisting of a PET aromatic polyester having an intrinsic viscosity of 0.55 to 0.80 dl / g, and a recycled product of polyethylene terephthalate-based polyester. The present invention provides a method for producing a polyethylene terephthalate-based polyester nonwoven fabric-sheet and board laminate, comprising at least one kind.

本発明は、第4に、不織布(c)が目付け量50〜250g/mであることを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法を提供するものである。Fourthly, the present invention provides a method for producing a polyethylene terephthalate polyester nonwoven fabric-sheet and board laminate, wherein the nonwoven fabric (c) has a basis weight of 50 to 250 g / m 2 .

本発明は、第5に、ポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体を真空成形法、圧空成形法または真空圧空成形法によって加熱加工して成るマネキン成形体、照明用成形体、成形加工体の製造方法を提供するものである。    Fifth, the present invention relates to a mannequin molded article, a molded article for lighting, and a molded article obtained by heating a polyethylene terephthalate-based polyester nonwoven fabric-sheet and board laminate by vacuum forming, pressure forming, or vacuum / pressure forming. A method for producing a body is provided.

なお、本発明において、フィルム、シートおよびボードの用語は、便宜的にそれらの厚みをそれぞれ0.254m以下、0.254〜1mmおよび1mm以上によって区別される。また、シートおよびボードを、板と総称する。  In the present invention, the terms “film”, “sheet” and “board” are distinguished for convenience by their thicknesses of 0.254 m or less, 0.254 to 1 mm and 1 mm or more, respectively. Moreover, a sheet | seat and a board are named generically.

発明の効果The invention's effect

不織布の積層によって、無延伸PETの透明性シートおよびボードの耐スクラッチ性が低くて傷が付き易い欠点が無くなる。また、インテリヤ資材および建築資材、特に照明器具では、不織布によるソフト化が可能となる。他方、マネキン用途では、不織布の染色が自由なので、肌色、白色、黒色などが実現し、また、衣類の仮止めが可能となる。    The lamination of the nonwoven fabric eliminates the disadvantage that the unstretched PET transparent sheet and board have low scratch resistance and are easily scratched. Further, in the case of interior materials and building materials, particularly lighting fixtures, softening with non-woven fabric is possible. On the other hand, in mannequin applications, since the nonwoven fabric can be dyed freely, skin color, white, black, etc. are realized, and clothing can be temporarily fixed.

本発明において、無延伸PETの透明性シートおよびボードまたは不織布の原料樹脂として使用するポリエチレンテレフタレート(PET)系ポリエステル(a)は、PET系ポリエステルとして世界的に大量生産されているPETおよびその共重合体が挙げられ、特に大量生産樹脂で安価なPETが好ましい。該PET系ポリエステル(a)は、1,1,2,2−テトラクロロエタン/フェノール(1:1)混合溶媒に溶解して25℃にて測定した固有粘度(IV値)が、0.50dl/g以上(これは、JIS法:温度280℃、荷重2.16KgによるMFR約210g/10分以下に相当する。以下同じ。)であれば使用できる。
固有粘度が0.50dl/g未満であると、得られるPET系ポリエステル重合体が、必ずしも優れた成形加工性および物性を与えることができない恐れがある。従って、固有粘度が、0.55dl/g以上(MFRが約160g/10分以下)が、使用できるが、これら低分子量のPET系ポリエステルは不織布に適する。重縮合法で得られる繊維グレードおよび二軸延伸フィルムグレードのPETは、固有粘度が0.60〜0.65dl/g(MFRが約130〜100g/10分)であり、比較的に安価で大量に入手が可能なので、実用上好ましい。
固有粘度の上限は、特に制限されないが、通常0.90dl/g(MFRが約25g/10分)の高分子量の特殊グレード、好ましくは0.80dl/g(MFRが約45g/10分)のボトルグレードおよびシートグレードである。これらは、いずれのグレードも重縮合法の繊維グレードPETを固相重合法により数時間ないし十数時間かけて高分子量化するので、固有粘度の値の増加とともに高価格となる。
In the present invention, polyethylene terephthalate (PET) -based polyester (a) used as a raw material resin for unstretched PET transparent sheet and board or nonwoven fabric is PET and its co-polymer which are mass-produced worldwide as PET-based polyester. In particular, PET, which is a mass-produced resin and inexpensive, is preferable. The PET-based polyester (a) has an intrinsic viscosity (IV value) measured at 25 ° C. dissolved in a 1,1,2,2-tetrachloroethane / phenol (1: 1) mixed solvent of 0.50 dl / (This corresponds to an JIS method: MFR of about 210 g / 10 min or less with a temperature of 280 ° C. and a load of 2.16 kg. The same shall apply hereinafter).
If the intrinsic viscosity is less than 0.50 dl / g, the obtained PET-based polyester polymer may not necessarily give excellent moldability and physical properties. Accordingly, an intrinsic viscosity of 0.55 dl / g or more (MFR of about 160 g / 10 min or less) can be used, but these low molecular weight PET polyesters are suitable for nonwoven fabrics. Fiber grade and biaxially stretched film grade PET obtained by the polycondensation method has an intrinsic viscosity of 0.60 to 0.65 dl / g (MFR of about 130 to 100 g / 10 min), and is relatively inexpensive and in large quantities. Therefore, it is practically preferable.
The upper limit of the intrinsic viscosity is not particularly limited, but is usually a special grade having a high molecular weight of 0.90 dl / g (MFR of about 25 g / 10 min), preferably 0.80 dl / g (MFR of about 45 g / 10 min). Bottle grade and sheet grade. In any of these grades, the fiber grade PET of the polycondensation method is made to have a high molecular weight over several hours to several tens of hours by the solid phase polymerization method, so that the price increases as the value of the intrinsic viscosity increases.

現実的には、大量に収集・回収されるPET系ポリエステルである回収PETボトルのフレークまたはペレットをベース樹脂(a)として使用することが好ましい。通常は、PETボトルが有している固有粘度が比較的高いので回収PETボトルの固有粘度も高く、一般には0.60〜0.80dl/g(MFRが130〜45g/10分)、特に0.65〜0.75dl/g(MFRが100〜55g/10分)である。一般に、回収PETボトルのフレークは、20kg入り紙袋品または600kg入りフレコン(flexible container)品で供給されるが、通常、含有水分率は3,000〜6,000ppm(0.3〜0.6重量%)程度ある。勿論、真空圧空成形工場から大量に回収されるA−PETシートのスケルトン・フレーク(成形工程での使用部分の残りマージン部分のフレーク)も、本発明のシートおよびボード用原料として好適である。
また、食品用途としては、重縮合法による繊維グレードおよび二軸延伸フィルム用のPET(固有粘度:一般に0.60〜0.65dl/g)が安価で安定供給なので、特に好ましい。但し、これらの回収品の固有粘度は、約0.55dl/gとなるが、不織布の原料として充分使用できる。
Practically, it is preferable to use flakes or pellets of recovered PET bottles, which are PET-based polyesters collected and recovered in large quantities, as the base resin (a). Usually, since the intrinsic viscosity of the PET bottle is relatively high, the intrinsic viscosity of the recovered PET bottle is also high, generally 0.60 to 0.80 dl / g (MFR 130 to 45 g / 10 min), particularly 0. .65 to 0.75 dl / g (MFR 100 to 55 g / 10 min). Generally, the flakes of recovered PET bottles are supplied in a 20 kg paper bag product or a 600 kg flexible container product. Usually, the moisture content is 3,000 to 6,000 ppm (0.3 to 0.6 weight). %) There is a degree. Of course, skeleton flakes of A-PET sheets recovered in large quantities from a vacuum / pressure forming factory (flakes in the remaining margin of the used portion in the molding process) are also suitable as the raw material for the sheet and board of the present invention.
For food applications, fiber grades by polycondensation and PET (intrinsic viscosity: generally 0.60 to 0.65 dl / g) for biaxially stretched film are particularly preferable because they are inexpensive and stable supply. However, the intrinsic viscosity of these recovered products is about 0.55 dl / g, but it can be used sufficiently as a raw material for the nonwoven fabric.

本発明の不織布は、PET系ポリエステルで製造が可能な不織布、例えば湿式不織布のサーマルボンド、スパンレース(高圧水流絡合体)、乾式不織布のサーマルボンド、スパンレース(高圧水流絡合体)、ニードルパンチ、メルトブロー不織布などを使用することができる。ニードルパンチは、安価であるが、目が粗いので、高級感のあるスパンレース(高圧水流絡合体)が好ましい。
本発明の不織布/透明板を平面体として使用する場合には、不織布の目付け量として25〜250g/mを使用することが出来る。一方、真空圧空成形法により深絞り成形体に加工する場合には、不織布の目付け量として50〜150g/mを使用することが好ましい。更に、スパンボンドの様に、伸縮性の大きい不織布を使用することがより一層好ましい。
The nonwoven fabric of the present invention is a nonwoven fabric that can be produced with a PET-based polyester, for example, a wet nonwoven fabric thermal bond, a spunlace (high pressure hydroentangled body), a dry nonwoven fabric thermal bond, a spunlace (high pressure hydroentangled body), a needle punch, A melt blown nonwoven fabric or the like can be used. Needle punches are inexpensive, but have a coarse eye, so high-grade spunlaces (high pressure hydroentangled bodies) are preferred.
When using the nonwoven fabric / transparent plate of the present invention as a flat body, 25 to 250 g / m 2 can be used as the basis weight of the nonwoven fabric. On the other hand, when processing into a deep drawing molded object by a vacuum pressure forming method, it is preferable to use 50-150 g / m < 2 > as a fabric weight of a nonwoven fabric. Furthermore, it is even more preferable to use a nonwoven fabric having high elasticity such as spunbond.

本発明におけるPET系ポリエステルの無延伸PETの透明性シートおよびボードを製造する装置としては、PET樹脂のシートおよびボード成形装置を使用することが出来る。単軸押出機には原料の乾燥機および脱気と脱水用の真空ライン、二軸押出機には脱気と脱水用の真空ラインが必要である。生産ラインとしては、その他にギャーポンプ、T型ダイス、シートおよびボードの冷却ロール、引取り機、スリッター、切断機等から構成される。更に、積層体の製造のために、不織布の繰出し装置が必要である。
PETは、再結晶化し易い樹脂であるので、厚み3mm以上のボードを製造する場合にボードの中心部分が再結晶化により白色不透明化し易い。従って、透明厚手ボードを製造するには、結晶化しないPETG樹脂(イーストマン社製、エスケーケミカル社製など)を併用することが出来る。PETに対するPETGの割合は、例えば、厚み3mmボードで0〜20%、4mmボードで20〜30%、5mmボードで30〜40%、5mmボードで40〜60%とすることが出来る。
As a device for producing a transparent sheet and board of PET polyester unstretched PET in the present invention, a PET resin sheet and board molding apparatus can be used. A single screw extruder requires a raw material dryer and a vacuum line for degassing and dehydration, and a twin screw extruder requires a vacuum line for degassing and dewatering. Other production lines include gear pumps, T-shaped dies, sheet and board cooling rolls, take-up machines, slitters, and cutting machines. Furthermore, a non-woven fabric feeding device is required for the production of the laminate.
Since PET is a resin that is easily recrystallized, when a board having a thickness of 3 mm or more is manufactured, the central portion of the board is likely to become white opaque due to recrystallization. Therefore, in order to produce a transparent thick board, a PETG resin (manufactured by Eastman Co., Ltd., SK Chemical Co., etc.) that does not crystallize can be used in combination. The ratio of PETG to PET can be, for example, 0 to 20% for a 3 mm board, 20 to 30% for a 4 mm board, 30 to 40% for a 5 mm board, and 40 to 60% for a 5 mm board.

一般に、回収PETボトルフレークまたは新品のPET樹脂は、約3,000〜6,000ppm(0.3〜0.6重量%)の水分を含んでいる。従って、予め110〜140℃で熱風乾燥して水分量を100〜200ppmに下げたものが好ましいが、また除湿空気で乾燥して水分量を50ppm以下に下げたものを使用することが更に好ましい。
一方、未乾燥のままで原料として使用する場合には、二軸押出機の真空ラインを油封式、好ましくは乾式とし、第1ベント〜第2ベントの真空度を13.3×103Pa(100mmHg)以下、好ましくは2.6×103Pa(20mmHg)以下、更に好ましくは0.66×103Pa(5mmHg)以下に下げて、ポリエステル樹脂が溶融した直後および溶融混合中に水分を真空脱気して除去することによって、本発明を好適に達成することができる。
Generally, recovered PET bottle flakes or fresh PET resin contain about 3,000 to 6,000 ppm (0.3 to 0.6 weight percent) of moisture. Accordingly, it is preferable to dry in hot air at 110 to 140 ° C. and reduce the water content to 100 to 200 ppm in advance, but it is more preferable to use one that has been dried with dehumidified air and reduced to a water content of 50 ppm or less.
On the other hand, when it is used as a raw material without being dried, the vacuum line of the twin-screw extruder is oil-sealed, preferably dry, and the vacuum degree of the first vent to the second vent is 13.3 × 103 Pa (100 mmHg) In the following, the pressure is preferably reduced to 2.6 × 103 Pa (20 mmHg) or less, more preferably 0.66 × 103 Pa (5 mmHg) or less, and the moisture is removed by vacuum degassing immediately after the polyester resin is melted and during melt mixing. By this, this invention can be achieved suitably.

本発明のPET系ポリエステルを使用したA−PET透明シートおよびボードと不織布との積層体の製造方法は、例えばT型ダイスからPET系ポリエステルの融体を約260〜270℃で押出し、約30〜60℃のタッチロールおよびチルロールの間で冷却することにより透明性シートおよびボードに成形するが、その際に不織布を透明性シートおよびボードとタッチロールとの間に挿入することによって、実施することができる。  The method for producing an A-PET transparent sheet and a laminate of a board and a nonwoven fabric using the PET-based polyester of the present invention includes, for example, extruding a PET-based polyester melt at about 260 to 270 ° C. from a T-die, and about 30 to It is formed into a transparent sheet and board by cooling between a 60 ° C. touch roll and a chill roll, and in this case, the nonwoven fabric is inserted between the transparent sheet and board and the touch roll. it can.

次に本発明を実施例に基づいて詳細に説明する。  Next, the present invention will be described in detail based on examples.

PET系ポリエステルについて、固有粘度(IV値)、MFR、機械的物性などを評価した。これらの評価方法は以下の通りである。
(1)固有粘度(IV値):PET系ポリエステルについて、1,1,2,2−テトラクロロエタンとフェノールとの等重量の混合溶媒を使用し、キャノンフェンスケ粘度計で25℃にて測定した。
(2)MFR:JIS K7210の条件20に従い、温度280℃、荷重2.16kgの条件で測定した6分後の数値である。
(3)機械的物性の測定:引張試験はJIS K7161に従い、厚さ約0.2〜3mmのシートおよびボード(板)を1B型ダンベルで打ち抜き、島津製作所のオートグラフDSS2000を使用し、引張速度50mm/分で行った(弾性率 1mm/分)。曲げ試験は、JIS K7171に従い、速度1mm/分、支点間距離40mmで行った。アイゾット衝撃試験はJIS K7110に従い、試験片2Aについて行なった。デュロメーター硬さは、JIS K7215に従い、タイプDについて行なった。
The PET-based polyester was evaluated for intrinsic viscosity (IV value), MFR, mechanical properties, and the like. These evaluation methods are as follows.
(1) Intrinsic viscosity (IV value): For PET polyester, a mixed solvent of equal weight of 1,1,2,2-tetrachloroethane and phenol was used and measured at 25 ° C. with a Canon Fenceke viscometer. .
(2) MFR: A numerical value after 6 minutes measured under conditions of a temperature of 280 ° C. and a load of 2.16 kg according to the condition 20 of JIS K7210.
(3) Measurement of mechanical properties: The tensile test was performed in accordance with JIS K7161 by punching a sheet and board (plate) having a thickness of about 0.2 to 3 mm with a 1B type dumbbell, and using an autograph DSS2000 manufactured by Shimadzu Corporation. The measurement was performed at 50 mm / min (elastic modulus: 1 mm / min). The bending test was performed according to JIS K7171 at a speed of 1 mm / min and a fulcrum distance of 40 mm. The Izod impact test was performed on the test piece 2A according to JIS K7110. The durometer hardness was measured for type D according to JIS K7215.

実施例1〜2Examples 1-2

[実施例1:透明ボードB1/白色水流絡合法不織布W1の積層体P1の製造例]
東京ペットボトルリサイクル(株)のPETクリアフレークの除湿空気式乾燥機による乾燥品(水分30ppm以下、PETボトルの回収品、固有粘度0.73dl/g、MFR48g/10分、PET99.9%)を、ドイツ・ライフェンファウザー製の単軸型押出機(スクリュー径120mmΦ、L/D=32、1ベント式)を使用し、シリンダーおよびダイスの設定温度を270〜280℃、フレーク混合物の供給速度250Kg/h、スクリュー回転数45rpm、真空度0.095MPa以下、巾1,400mmで280〜290℃のTダイから斜め45度下向きにボードを押出し、30〜60℃の冷却ロールおよびタッチロールでA−PET透明ボード(板厚約2.3mm)に成形すると同時に、目付け量100g/mの水流絡合法白色PET不織布W1(日本バイリーン製、厚み約0.2mm)を冷却ロールとタッチロール間に挿入し、総厚み約2.5mm、スリット巾910mmの透明ボードB1/水流絡合法白色不織布W1の積層体P1を約100m製造し、長さ1.8mに切断して収納した(3×6定尺板)。
なお、透明ボードB1(板厚約2.3mm)の物性値は、下記の通りであった。
引張強度:60.7MPa(縦)、60.5(横)、引張伸び:43%(縦)、43%(横)、引張弾性率:2,030MPa(縦)、2,040(横)、曲げ強さ:88.4MPa(縦)、86.8(横)、曲げ弾性率:2,450MPa(縦)、2,470(横)、アイゾット衝撃値:2.7kJ/m(縦)、1.2kJ/m(横)、デュロメーター硬さ:76HDD。
[Example 1: Production example of laminate P1 of transparent board B1 / white water entangled nonwoven fabric W1]
Tokyo PET Bottle Recycle Co., Ltd. PET clear flakes with a dehumidified air dryer (water content 30ppm or less, PET bottle recovered product, intrinsic viscosity 0.73dl / g, MFR 48g / 10min, PET 99.9%) , Using a single screw type extruder (screw diameter 120mmΦ, L / D = 32, 1 vent type) manufactured by Reifenfuser, Germany, set temperature of cylinder and die is 270-280 ° C, feeding rate of flake mixture The board is extruded 45 degrees downward from a T die of 280 to 290 ° C. with a width of 1,400 mm at a speed of 250 Kg / h, screw rotation speed 45 rpm, a vacuum degree of 0.095 MPa or less, and A with a cooling roll and a touch roll of 30 to 60 ° C. and simultaneously shaped into -PET transparent board (thickness about 2.3 mm), flow of basis weight 100 g / m 2 Legal white PET non-woven fabric W1 (Nippon Vilene, thickness: about 0.2 mm) is inserted between the cooling roll and touch roll, and laminated with transparent board B1 / water entangled white non-woven fabric W1 having a total thickness of about 2.5 mm and a slit width of 910 mm. The body P1 was manufactured about 100 m, cut into a length of 1.8 m and stored (3 × 6 standard plate).
In addition, the physical property value of transparent board B1 (plate thickness about 2.3 mm) was as follows.
Tensile strength: 60.7 MPa (length), 60.5 (width), tensile elongation: 43% (length), 43% (width), tensile modulus: 2,030 MPa (length), 2,040 (width), Bending strength: 88.4 MPa (length), 86.8 (width), flexural modulus: 2,450 MPa (length), 2,470 (width), Izod impact value: 2.7 kJ / m 2 (length), 1.2 kJ / m 2 (horizontal), durometer hardness: 76 HDD.

[実施例2:透明ボードB1/白色ニードルパンチ法不織布W2の積層体P2の製造例]
実施例1と同様にして、A−PET透明ボード(板厚約2.3mm)に成形すると同時に、目付け量100g/mの白色PET不織布W2(日本バイリーン製、厚み約0.2mm)を冷却ロールとタッチロール間に挿入し、総厚み約2.5mm、スリット巾910mmの透明ボードB1/白色不織布W2の積層体P2を約100m製造し、長さ1.8mに切断して収納した(3×6定尺板)。
[Example 2: Production example of laminate P2 of transparent board B1 / white needle punch method nonwoven fabric W2]
In the same manner as in Example 1, it was molded into an A-PET transparent board (plate thickness of about 2.3 mm), and at the same time, a white PET nonwoven fabric W2 (made by Nippon Vilene, thickness of about 0.2 mm) with a basis weight of 100 g / m 2 was cooled. Inserted between a roll and a touch roll, produced a laminate P2 of transparent board B1 / white nonwoven fabric W2 having a total thickness of about 2.5 mm and a slit width of 910 mm, cut into a length of 1.8 m and stored (3 × 6 standard plate).

[白色ボードB2/黒色ニードルパンチ法不織布W3の積層体P3の製造例]
実施例1と同様にして、チタン白を加えた白色ボード(板厚約1.5mm)に、目付け量200g/mのニードルパンチ法黒色PET不織布W3(日本バイリーン製、厚み約0.5mm)を冷却ロールとタッチロール間に挿入し、総厚み2.0mm、スリット巾910mmの白色ボードB2/黒色不織布W3の積層体P3を約100m製造し、長さ1.8mに切断して収納した(3×6定尺板)。
[Example of production of laminate P3 of white board B2 / black needle punch method nonwoven fabric W3]
In the same manner as in Example 1, a white board (plate thickness of about 1.5 mm) with titanium white added to a needle punch method black PET nonwoven fabric W3 (made by Nippon Vilene, thickness of about 0.5 mm) with a basis weight of 200 g / m 2 Was inserted between the cooling roll and the touch roll to produce a laminate P3 of white board B2 / black nonwoven fabric W3 having a total thickness of 2.0 mm and a slit width of 910 mm, cut into a length of 1.8 m and stored ( 3 × 6 standard plate).

[透明ボードB3/白色スパンボンド法不織布W4の積層体P4の製造例]
実施例1と同様にして、透明PETボードB3(板厚約2.1mm)に、目付け量200g/mの白色スパンボンド法PET不織布W4(旭化成製の商品名スマッシュ:、厚み約0.4mm)を冷却ロールとタッチロール間に挿入し、総厚み約2.5mm、スリット巾910mmの白色ボードB3/黒色不織布W4の積層体P4を約100m製造し、長さ1.8mに切断して収納した(3×6定尺板)。
[Production Example of Laminated P4 of Transparent Board B3 / White Spunbond Nonwoven Fabric W4]
In the same manner as in Example 1, on a transparent PET board B3 (plate thickness of about 2.1 mm), a white spunbond PET non-woven fabric W4 having a basis weight of 200 g / m 2 (trade name smash made by Asahi Kasei: thickness of about 0.4 mm) ) Is inserted between the cooling roll and the touch roll to produce about 100 m of a white board B3 / black nonwoven fabric W4 laminate P4 having a total thickness of about 2.5 mm and a slit width of 910 mm, cut into a length of 1.8 m and stored. (3 × 6 standard plate).

[透明ボードB3/茶色ニードルパンチ法不織布W5の積層体P5の製造例]
実施例1と同様にして、透明PETボードB3(板厚約2.1mm)に、目付け量200〜250g/mのニードルパンチ法茶色PET不織布W5(ダイニック製、厚み約0.4mm、)を冷却ロールとタッチロール間に挿入し、総厚み約2.5mm、スリット巾910mmの透明ボードB3/茶色不織布W5の積層体P5を約100m製造し、長さ1.8mに切断して収納した(3×6定尺板)。
[Production Example of Transparent Board B3 / Brown Needle Punch Method Nonwoven Fabric W5 Laminate P5]
In the same manner as in Example 1, a needle punch method brown PET nonwoven fabric W5 (made by Dynic, thickness of about 0.4 mm) having a basis weight of 200 to 250 g / m 2 was applied to a transparent PET board B3 (plate thickness of about 2.1 mm). Inserted between a cooling roll and a touch roll, a laminate P5 of transparent board B3 / brown nonwoven fabric W5 having a total thickness of about 2.5 mm and a slit width of 910 mm was produced about 100 m, and cut into a length of 1.8 m and stored ( 3 × 6 standard plate).

[透明シートS1/白色スパンボンド法不織布W4の積層体P6の製造例]
ユニチカ製PET樹脂ベレットの未乾燥品(新品、水分6,500ppm、固有粘度0.80dl/g、MFR45g/10分)を、(株)池貝製の同方向二軸型押出機(スクリュー径80mmΦ、L/D=36、2ベント式)を使用し、シリンダーおよびダイスの設定温度を265〜270℃、PET樹脂の供給速度250Kg/h、スクリュー回転数150rpm、真空度0.095MPa以下にて、巾1,400mmで270〜280℃のTダイから垂直下向きにシートを押出した。次いで、30〜60℃の冷却ロールおよびタッチロールでA−PETシートS1(厚み約0.50mm)に成形すると同時に、目付け量100g/mの白色水流絡合法PET不織布W1(日本バイリーン製、厚み約0.2mm)を冷却ロールとタッチロール間に挿入し、総厚み0.70mm、スリット巾910mmの透明シートS1/白色水流絡合不織布W1の積層体P6を約100m製造した。
[Production Example of Transparent Sheet S1 / Laminate P6 of White Spunbond Nonwoven Fabric W4]
Unitika's undried PET resin beret (new, moisture 6,500 ppm, intrinsic viscosity 0.80 dl / g, MFR 45 g / 10 min) was converted into a unidirectional twin screw extruder (screw diameter 80 mmΦ, L / D = 36, 2 vent type), set the temperature of the cylinder and the die to 265 to 270 ° C., supply rate of PET resin 250 kg / h, screw rotation speed 150 rpm, vacuum degree 0.095 MPa or less, width The sheet was extruded vertically downward from a T die at 270-280 ° C. at 1,400 mm. Next, at the same time as being formed into an A-PET sheet S1 (thickness of about 0.50 mm) with a cooling roll and a touch roll of 30 to 60 ° C., a white water entangled PET nonwoven fabric W1 with a basis weight of 100 g / m 2 (manufactured by Japan Vilene, thickness) About 0.2 mm) was inserted between the cooling roll and the touch roll to produce about 100 m of a laminate P6 of transparent sheet S1 / white water entangled nonwoven fabric W1 having a total thickness of 0.70 mm and a slit width of 910 mm.

実施例7〜9Examples 7-9

[ボードB1〜B2/不織布W1〜W3の積層体P1〜P3の真空圧空成形例]
本発明の実施例1〜3による厚み1.7〜2.5mmの積層体P1〜P3を、40cm角に切断し、(株)浅野研究所製のFKC式真空圧空成形機にて、ヘルメット型照明容器(概略寸法:巾150×長さ240×高さ70mm)に、真空圧空成形をした。
実施例7:実施例1の透明ボードB1/白色水流絡合法不織布W1の積層体P1(厚み2.5mm)を、上側ヒーター温度400℃、下側ヒーター450℃に設定し、高速加熱方式にてシート表面温度を40秒で145℃にした。ボード面の真空引き雌型金型の温度を約75℃、不織布面の圧空圧力を3気圧および型締め10秒/ショットとして、順調に成形できた。本照明容器は、内部に電球を配して点灯すると、不織布の効果により和風の穏やかな光源となり、インテリヤ性が効果的であった。
実施例8:実施例7と同様にして、実施例2の透明ボードB1/白色ニードルパンチ法不織布W2の積層体P2(厚み2.5mm)を、上側ヒーター温度400℃、下側ヒーター450℃に設定し、高速加熱方式にてシート表面温度を37秒で140℃にした。ボード面の真空引き雌型金型の温度を約75℃、不織布面の圧空圧力を3気圧および型締め10秒/ショットとして、順調に成形できた。
実施例9:実施例7と同様にして、実施例3の白色ボードB2/黒色ニードルパンチ法不織布W3の積層体P3(厚み2.0mm)を、上側ヒーター温度400℃、下側ヒーター450℃に設定し、高速加熱方式にてシート表面温度を62秒で140℃にした。ボード面の真空引き雌型金型の温度を約75℃、不織布面の圧空圧力を3気圧および型締め10秒/ショットとして、順調に成形できた。
これらの真空圧空成形体は、例えば、内部に光源をいれた照明器具として和風で高級感を持つ用途が一例であった。
[Vacuum / Pneumatic Forming Examples of Laminates P1 to P3 of Boards B1 to B2 / Nonwoven Fabrics W1 to W3]
Laminated bodies P1 to P3 having a thickness of 1.7 to 2.5 mm according to Examples 1 to 3 of the present invention were cut into 40 cm squares, and then helmet-shaped using an FKC type vacuum / pressure forming machine manufactured by Asano Laboratory. Vacuum / pressure forming was performed on an illumination container (general dimensions: width 150 × length 240 × height 70 mm).
Example 7: Transparent board B1 / white water entangled nonwoven fabric W1 laminate P1 (thickness 2.5 mm) of Example 1 is set at an upper heater temperature of 400 ° C. and a lower heater of 450 ° C. The sheet surface temperature was 145 ° C. in 40 seconds. The board surface was vacuum-drawn and the mold was smoothly formed at a temperature of about 75 ° C., the pressure of the nonwoven fabric was 3 atm, and the mold clamping was 10 seconds / shot. When the lighting container was lit with a light bulb inside, it became a gentle Japanese-style light source due to the effect of the non-woven fabric, and the interior was effective.
Example 8: In the same manner as in Example 7, the laminate P2 (thickness 2.5 mm) of the transparent board B1 / white needle punch method nonwoven fabric W2 of Example 2 was set to an upper heater temperature of 400 ° C. and a lower heater of 450 ° C. The sheet surface temperature was set to 140 ° C. in 37 seconds by a high-speed heating method. The board surface was vacuum-drawn and the mold was smoothly formed at a temperature of about 75 ° C., the pressure of the nonwoven fabric was 3 atm, and the mold clamping was 10 seconds / shot.
Example 9: In the same manner as in Example 7, the laminate P3 (thickness 2.0 mm) of the white board B2 / black needle punch method nonwoven fabric W3 of Example 3 was set to an upper heater temperature of 400 ° C. and a lower heater of 450 ° C. The sheet surface temperature was set to 140 ° C. in 62 seconds by the high-speed heating method. The board surface was vacuum-drawn and the mold was smoothly formed at a temperature of about 75 ° C., the pressure of the nonwoven fabric was 3 atm, and the mold clamping was 10 seconds / shot.
For example, these vacuum-compressed air-molded bodies have a Japanese-style and high-class feeling as a lighting fixture having a light source inside.

子供用マネキンの真空圧空成形製造装置を使用し、実施例2の透明ボードB1/白色ニードルパンチ法不織布W2の積層体P2(厚み2.5mm)について、上側ヒーター温度450℃、下側ヒーター500℃に設定し、シート上側18〜23秒、シート下側18〜26秒で高速加熱し、ボード面の真空引き雄型金型の温度を約113℃にして、順調に成形することが出来た。  Using a vacuum manufacture device for mannequins for children, an upper heater temperature of 450 ° C. and a lower heater of 500 ° C. for the laminate P2 (thickness 2.5 mm) of the transparent board B1 / white needle punch method nonwoven fabric W2 of Example 2 The sheet was heated at a high speed for 18 to 23 seconds on the upper side of the sheet and 18 to 26 seconds on the lower side of the sheet, and the temperature of the vacuum-drawing male mold on the board surface was set to about 113 ° C., and the molding could be performed smoothly.

子供用マネキンの真空圧空成形製造装置を使用し、実施例4の透明ボードB3/白色スパンボンド法不織布W4の積層体P4の製造例(厚み2.5mm)について、上側ヒーター温度450℃、下側ヒーター500℃に設定し、シート上側18秒、シート下側24〜26秒で高速加熱し、ボード面の真空引き雄型金型の温度を約113℃にして、順調に成形することが出来た。  Using an apparatus for manufacturing vacuum pressure and air of a mannequin for children, an example of manufacturing a laminate P4 of transparent board B3 / white spunbond nonwoven fabric W4 of Example 4 (thickness 2.5 mm), upper heater temperature 450 ° C., lower side The heater was set to 500 ° C., heated at a high speed for 18 seconds on the upper side of the sheet and 24-26 seconds on the lower side of the sheet, and the temperature of the vacuum mold for the vacuum drawing of the board surface was set to about 113 ° C., and the molding was successfully performed .

大量に発生する回収PETボトルを再生原料として、透明性PETシートおよびボード並びにPET不織布に有効に利用でき、更に付加価値の高いマネキン体や照明容器などの新規商品の市場開拓ができるので、社会的に有益である。また、これらを使用後に焼却処理したとしてもポリエチレンやポリプロピレンと比較して燃焼発熱量が低いので焼却炉を損傷することが少なく、また有毒ガスを発生しない。  Recycled PET bottles generated in large quantities can be used effectively as transparent raw materials for transparent PET sheets and boards and PET non-woven fabrics, and new products such as high-value-added mannequin bodies and lighting containers can be cultivated. It is beneficial to. Even if these are incinerated after use, the calorific value of combustion is lower than that of polyethylene or polypropylene, so that the incinerator is less likely to be damaged and no toxic gas is generated.

Claims (5)

ポリエチレンテレフタレート系ポリエステル(a)の乾燥樹脂を押出機中でその融点以上の温度で溶融させてキャスト法にて無定形シートおよびボード(b)に成形しつつ、ポリエチレンテレフタレート系ポリエステル系ポリエステル(a)の不織布(c)に熔融密着することを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法。  Polyethylene terephthalate-based polyester (a) while a dry resin of polyethylene terephthalate-based polyester (a) is melted in an extruder at a temperature equal to or higher than its melting point and formed into an amorphous sheet and board (b) by a casting method. A method for producing a polyethylene terephthalate-based polyester nonwoven fabric sheet and board laminate, wherein the nonwoven fabric (c) is fused and adhered. ポリエチレンテレフタレート系ポリエステル(a)の未乾燥樹脂を押出機中でその融点以上の温度で溶融させて13.3×103Pa以下の減圧下にて脱気脱水しながら、キャスト法にて無定形シートおよびボード(b)に成形しつつ、ポリエチレンテレフタレート系ポリエステル(a)の不織布(c)に熔融接着することを特徴とするポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法。  The amorphous sheet of polyethylene terephthalate-based polyester (a) was melted at a temperature equal to or higher than its melting point in an extruder and degassed and dehydrated under a reduced pressure of 13.3 × 10 3 Pa or less by a casting method. A method for producing a polyethylene terephthalate polyester nonwoven fabric-sheet and board laminate, wherein the nonwoven fabric (c) is melt-bonded to the polyethylene terephthalate polyester (a) nonwoven fabric (c) while being molded into a board (b). ポリエチレンテレフタレート系ポリエステル(a)が、固有粘度0.55〜0.80dl/gのポリエチレンテレフタレート系ポリエステル、ポリエチレンテレフタレート系ポリエステル成形品の再循環物からなる群から選ばれる少なくとも1種類以上を含有することを特徴とする請求項1または2のいずれか1項に記載のポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法。  The polyethylene terephthalate-based polyester (a) contains at least one selected from the group consisting of a polyethylene terephthalate-based polyester having an intrinsic viscosity of 0.55 to 0.80 dl / g and a recycled product of a polyethylene terephthalate-based polyester molded product. The method for producing a polyethylene terephthalate-based polyester nonwoven fabric-sheet and board laminate according to any one of claims 1 and 2. 不織布(c)が、目付け量50〜250g/mであることを特徴とする請求項1または2のいずれか1項に記載のポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体の製造方法。Nonwoven (c) is, according to claim 1 or polyethyleneterephthalate according to any one of 2 phthalate polyester nonwoven fabric characterized in that it is a basis weight of 50 to 250 g / m 2 - method of manufacturing a sheet and board laminates. 請求項1および4項に記載のポリエチレンテレフタレート系ポリエステル製不織布−シートおよびボード積層体を真空成形法、圧空成形法または真空圧空成形法によって加熱加工して成るマネキン成形体、照明用成形体、成形加工体の製造方法。  A mannequin molded article, a molded article for lighting, and a molded article obtained by heat-processing the polyethylene terephthalate-based polyester nonwoven fabric-sheet and board laminate according to claim 1 and 4 by a vacuum molding method, a pressure molding method or a vacuum / pressure molding method. Manufacturing method of processed body.
JP2005122885A 2005-03-25 2005-03-25 Manufacturing process of non-woven fabric sheet and board lamination made of polyethylene terephthalate type polyester Pending JP2006272945A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018089857A (en) * 2016-12-02 2018-06-14 住友ベークライト株式会社 Multilayer film and package

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018089857A (en) * 2016-12-02 2018-06-14 住友ベークライト株式会社 Multilayer film and package

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