JPH0550975B2 - - Google Patents
Info
- Publication number
- JPH0550975B2 JPH0550975B2 JP62039040A JP3904087A JPH0550975B2 JP H0550975 B2 JPH0550975 B2 JP H0550975B2 JP 62039040 A JP62039040 A JP 62039040A JP 3904087 A JP3904087 A JP 3904087A JP H0550975 B2 JPH0550975 B2 JP H0550975B2
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- raw material
- continuous
- stirring tank
- foamed
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 18
- 239000006260 foam Substances 0.000 claims description 16
- 239000002994 raw material Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 13
- 239000000057 synthetic resin Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001879 gelation Methods 0.000 claims description 2
- 239000004088 foaming agent Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 238000005187 foaming Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/29—Feeding the extrusion material to the extruder in liquid form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、発泡層を含む合成樹脂積層品、例え
ば表皮層が非発泡層、下地層が発泡層からなる巾
木や床材を連続押出機によつて製造する方法に関
するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the continuous extrusion of synthetic resin laminates containing a foam layer, such as baseboards and flooring materials, in which the skin layer is a non-foam layer and the base layer is a foam layer. It relates to a method of manufacturing by machine.
本発明者は先に連続押出機による合成樹脂製積
層巾木の製造の実用化に我が国で始めて成功した
（特開昭53−52571号公報参照）。
The present inventor was the first in Japan to successfully commercialize the production of laminated baseboard made of synthetic resin using a continuous extruder (see Japanese Patent Laid-Open No. 53-52571).
その後、同装置を用いて下地層を発泡材とした
クツシヨン性と柔軟性に富む積層巾木を連続押出
機を使つて製造することについて鋭意研究を進め
て来た。 Since then, we have been conducting intensive research on using the same equipment to manufacture laminated baseboards with a foam base layer that is rich in cushioning and flexibility using a continuous extruder.
最初、前記特開昭53−52571号公報に示される
ものと同様の２台の連続押出機を使い、一方には
非発泡性ペレツトを供給し、他方には発泡材を含
有するペレツトを供給し、両連続押出機から押し
出される材料を同一のダイスの上下に供給して製
造する方法を採つた。 Initially, two continuous extruders similar to those shown in JP-A-53-52571 were used, one of which was supplied with non-expandable pellets, and the other with pellets containing a foamed material. , a manufacturing method was adopted in which the materials extruded from both continuous extruders were fed to the top and bottom of the same die.
ところが、ダイスより押し出される製品は、発
泡材によつてダイスより押し出されると同時に気
泡が膨張するため、不整形となり、そのまゝでは
製品とならず、サイジング機（整形機）を通さな
ければ商品とはならず、しかもその製品は表皮層
及び下地層は何れも均一な厚さとはならず、商品
価値の低い製品しか製造出来なかつた。 However, the product extruded from the die becomes irregularly shaped because the foam expands at the same time as it is extruded from the die. Moreover, both the skin layer and the base layer of the product did not have a uniform thickness, and only products with low commercial value could be manufactured.
その後、材料及び温度条件等を種々変えて実験
研究したが何れも成功しなかつた。 Subsequently, various experimental studies were conducted using different materials, temperature conditions, etc., but none were successful.
本発明は上記の問題点を解決するためになされ
たもので、従来とは異なる発想に基づくものであ
る。
The present invention was made to solve the above problems, and is based on an idea different from the conventional one.
試験した上記の製造法では商品価値の高い製品
が得られない点について種々研究した結果、その
原因は連続押出機内で発泡材を加熱してダイスか
ら噴出時に一挙に発泡させてしまうことに原因が
あることがわかつた。 As a result of various research on the fact that products with high commercial value could not be obtained using the above-mentioned manufacturing method that we tested, we found that the cause was that the foaming material was heated in the continuous extruder and foamed all at once when it was ejected from the die. I found out something.
そこで、更に種々研究の結果、発泡材を含有す
る原料の供給方法と配合方法に新しい手法を採る
ことにより、サイジング機を使用しないで発泡層
を含む合成樹脂積層品を製造することに成功した
のでこゝにその製造方法を開示するものである。 As a result of further research, we succeeded in manufacturing synthetic resin laminates containing foam layers without using a sizing machine by adopting a new method for supplying and blending raw materials containing foam materials. Herein, a method for manufacturing the same is disclosed.
即ち、本発明は、前述の複数の連続押出機から
供給される原料を同一のダイスに供給して合成樹
脂積層品の製造を行う装置を用いて発泡層を含む
合成樹脂積層品を製造する場合、発泡層成形用の
連続押出機に供給する原料として、先ず発泡材を
添加しない合成樹脂原料を加熱撹拌槽に入れて加
熱撹拌し、それがゲル化する直前に発泡材を添加
混合し、次いで冷却撹拌槽に投入してゲル化を停
止させたものを供給するようにすることにより発
泡層を含む合成樹脂積層品の連続製造に成功した
ものである。 That is, the present invention is applicable to the case where a synthetic resin laminate including a foam layer is manufactured using an apparatus for manufacturing a synthetic resin laminate by feeding raw materials supplied from the plurality of continuous extruders described above to the same die. As a raw material to be supplied to a continuous extruder for forming a foam layer, first, a synthetic resin raw material without any foaming material added is placed in a heated stirring tank, heated and stirred, and just before it becomes a gel, a foamed material is added and mixed, and then The continuous production of synthetic resin laminates including a foam layer was successfully achieved by supplying the product after it was put into a cooling stirring tank to stop gelation.
以下その実施例について図面に基づき説明す
る。 Examples thereof will be described below based on the drawings.
第１図は本発明実施に使用した製造装置を示す
もので、１は加熱撹拌槽、２は開閉弁、３は冷却
撹拌槽、４は開閉弁、５はフイーダー、６，７は
連続押出機、８はダイス、９は散水冷却器、１０
は水槽、１１は引取機、１２は切断機、１３取出
機である。
Fig. 1 shows the manufacturing equipment used in carrying out the present invention. 1 is a heating stirring tank, 2 is an on-off valve, 3 is a cooling stirring tank, 4 is an on-off valve, 5 is a feeder, and 6 and 7 are continuous extruders. , 8 is a die, 9 is a sprinkler cooler, 10
1 is a water tank, 11 is a take-out machine, 12 is a cutting machine, and 13 is a take-out machine.
この装置で製造しようとする製品は、第２図に
示すような表皮層Ａが非発泡材層、下地層Ｂが発
泡材層から成る積層巾木である。 The product to be manufactured using this apparatus is a laminated baseboard, as shown in FIG. 2, in which the skin layer A is a non-foamed material layer and the base layer B is a foamed material layer.
本発明以前に試験した前述の方法では下地層
Ｂ、即ち発泡材層形成用の連続押出機６のホツパ
ー６ａに発泡材含有のペレツトを供給し、表皮層
Ａ、即ち非発泡材層形成用の連続押出機７のホツ
パー７ａには発泡材を含有しない通常のペレツト
を供給し、ダイス８と散水冷却器９との間にサイ
ジング機を設けて製造するやり方であつたが、本
発明ではサイジング機は用いない。 In the above-mentioned method tested before the present invention, foam-containing pellets are fed to the hopper 6a of the continuous extruder 6 for forming the base layer B, that is, the foam layer, and the pellets containing the foam are fed to the hopper 6a of the continuous extruder 6 for forming the base layer B, that is, the foam layer, and Conventionally, ordinary pellets containing no foaming material were supplied to the hopper 7a of the continuous extruder 7, and a sizing machine was installed between the die 8 and the water sprinkler cooler 9, but in the present invention, the sizing machine is not used. is not used.
本発明は、前記の表皮層Ａを形成する原料を押
し出す連続押出機７に供給する原料は、先に開発
した積層巾木製造の場合と同様であるが、下地層
Ｂを形成する原料を押し出す連続押出機６に供給
する発泡材を含有する原料の内容及び配合方法が
次のように異なる。 In the present invention, the raw material supplied to the continuous extruder 7 for extruding the raw material forming the skin layer A is the same as in the case of manufacturing the laminated baseboard developed previously, but the raw material forming the base layer B is extruded. The content and blending method of the raw material containing the foaming material supplied to the continuous extruder 6 differs as follows.
実施例は塩化ビニール製積層巾木を製造する場
合で、先ずレジン，炭酸カルシウム，安定材，可
塑材，顔料から成る通常の処方の塩化ビニール原
料を加熱撹拌槽１に投入して加熱撹拌する。 In this example, a laminated baseboard made of vinyl chloride is manufactured. First, vinyl chloride raw materials having a usual formulation consisting of resin, calcium carbonate, stabilizer, plasticizer, and pigment are put into a heating stirring tank 1 and heated and stirred.
そしてそれが半ゲル化状態になつた時、即ち配
合等によつて異なるがゲル化する約１分位前に指
定量の発泡材を添加混合し、半ゲル化の状態の
まゝ開閉弁２を開いて冷却撹拌槽３に移して冷却
させる。そして40℃位になつたならば、開閉弁４
を開いてフイーダ５を介してホツパー６ａに供給
する。 Then, when it becomes a semi-gelled state, that is, about 1 minute before it becomes a gelled state depending on the formulation etc., add and mix the specified amount of foaming material, and while it is in a half-gelled state, open/close valve 2 Open it and transfer it to the cooling stirring tank 3 to cool it. Then, when the temperature reaches around 40℃, open/close valve 4
is opened and fed to the hopper 6a via the feeder 5.
この配合、供給方法によると、加熱撹拌槽１と
冷却槽３（冷却槽３に投下後反応熱によつて温度
が一旦上昇する）において、大部分の発泡が進
み、開閉弁４から排出されるペレツト状原料は所
謂ガス抜きのものと、発泡したものと、未発泡の
ものとが混在したものとなり、連続押出機６に供
給される原料としては、従来より発泡力の弱まつ
たものとなる。 According to this formulation and supply method, most of the foaming proceeds in the heating stirring tank 1 and the cooling tank 3 (the temperature rises once due to the heat of reaction after being poured into the cooling tank 3), and is discharged from the on-off valve 4. The pellet-like raw material is a mixture of so-called degassed material, foamed material, and unfoamed material, and the raw material supplied to the continuous extruder 6 is one whose foaming power is weaker than before. .
従つて、この発明によると、従来のようにサイ
ジング機を使用しないでも第２図に示すような形
の整つた製品を連続的に製造することができる。 Therefore, according to the present invention, a well-shaped product as shown in FIG. 2 can be continuously manufactured without using a conventional sizing machine.
第３図は、製品の断面の顕微鏡写真（倍率25
倍）を図示したもので、下地槽Ｂは理想的発泡を
なしている。 Figure 3 is a micrograph of the cross section of the product (magnification: 25
In this figure, base tank B is ideally foamed.
なお、下部の気泡が小さいのはダイスと接した
部分で、熱と押し出し圧力でガスが抜け気泡が圧
扁されたためである。 The reason why the bubbles at the bottom are small is because the bubbles were compressed by the heat and extrusion pressure that caused the gas to escape from the part that was in contact with the die.
本発明によればサイジング機を使用しないで
も、連続押出機によつて発泡層を含む合成樹脂積
層品を連続生産することができる。
According to the present invention, a synthetic resin laminate including a foam layer can be continuously produced using a continuous extruder without using a sizing machine.
また、本発明によつて生産された巾木，床材は
柔軟性があり、コーナーに張る場合、非発泡層の
みからなる製品のようにＶカツトをすることな
く、密着させることができる。 Furthermore, the baseboards and flooring materials produced according to the present invention are flexible, and when placed in corners, they can be stuck tightly together without having to make V-cuts unlike products made of only non-foamed layers.
また、冬季でも柔らかく、接着面に凹凸がある
ため接着材の密着性がよいので、施工に優れた製
品を提供することができる。 In addition, it is soft even in winter, and the adhesive surface has unevenness, so the adhesion of the adhesive is good, making it possible to provide a product that is excellent in construction.
第１図は本発明実施に使用した連続製造装置の
側面図、第２図は第１図の製造装置で製造した巾
木の断面図、第３図はその断面の拡大図である。
１……加熱撹拌槽、２，４……開閉弁、３……
冷却撹拌槽、５……フイーダー、６，７……連続
押出機、８……ダイス、１０……水槽、１１……
引取機、１２……切断機、１３……取出機。
FIG. 1 is a side view of the continuous manufacturing apparatus used in carrying out the present invention, FIG. 2 is a cross-sectional view of the baseboard manufactured by the manufacturing apparatus of FIG. 1, and FIG. 3 is an enlarged view of the cross-section. 1...Heating stirring tank, 2, 4...Opening/closing valve, 3...
Cooling stirring tank, 5... Feeder, 6, 7... Continuous extruder, 8... Dice, 10... Water tank, 11...
Taking-out machine, 12... cutting machine, 13... taking-out machine.
Claims (1)
のダイスに供給して合成樹脂積層品の製造を行う
装置を用いて発泡層を含む合成樹脂積層品を製造
する場合、発泡層成形用の連続押出機に供給する
原料として、先ず発泡材を添加しない合成樹脂原
料を加熱撹拌槽に入れて加熱撹拌し、それがゲル
化する直前に発泡材を添加混合し、次いで冷却撹
拌槽に投入してゲル化を停止させたものを供給す
ることを特徴とする連続押出機による発泡層を含
む合成樹脂積層品の製造方法。1. When manufacturing synthetic resin laminates including a foam layer using a device that manufactures synthetic resin laminates by feeding raw materials supplied from multiple continuous extruders to the same die, continuous extruders for foam layer molding As a raw material to be fed to the extruder, first, a synthetic resin raw material without any foaming agent added is placed in a heated stirring tank, heated and stirred, and just before it becomes a gel, a foamed material is added and mixed, and then the synthetic resin raw material is put into a cooling stirring tank. A method for producing a synthetic resin laminate including a foamed layer using a continuous extruder, characterized in that a material whose gelation has been stopped is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62039040A JPS63207626A (en) | 1987-02-24 | 1987-02-24 | Manufacture of synthetic resin laminated product containing foamed layer through continuous extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62039040A JPS63207626A (en) | 1987-02-24 | 1987-02-24 | Manufacture of synthetic resin laminated product containing foamed layer through continuous extrusion machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63207626A JPS63207626A (en) | 1988-08-29 |
| JPH0550975B2 true JPH0550975B2 (en) | 1993-07-30 |
Family
ID=12542011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62039040A Granted JPS63207626A (en) | 1987-02-24 | 1987-02-24 | Manufacture of synthetic resin laminated product containing foamed layer through continuous extrusion machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63207626A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569088A (en) * | 1991-04-18 | 1993-03-23 | Nippon Steel Corp | Method for continuously casting complex metal material |
| JPH05239907A (en) * | 1992-02-28 | 1993-09-17 | Tajima Inc | Long sheet for finishing rising part of wall rising from floor and finishing method |
| JP7420434B2 (en) * | 2018-12-12 | 2024-01-23 | 東都積水株式会社 | Baseboard and baseboard winding body |
| CN110240772A (en) * | 2019-07-24 | 2019-09-17 | 南通中联工业发展有限公司 | A kind of flexible PVC pellet production equipment and its production method |
| JP2021161687A (en) * | 2020-03-31 | 2021-10-11 | 東都積水株式会社 | Baseboard, and wound baseboard body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3394210A (en) * | 1965-07-02 | 1968-07-23 | Armstrong Cork Co | Method of making a cellular thermoplastic vinyl resin sheet material |
| GB1345540A (en) * | 1970-04-28 | 1974-01-30 | Dynamit Nobel Ag | Thermoplastic extrudates of mottled appearance |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911541Y2 (en) * | 1980-03-05 | 1984-04-09 | 浩康 市村 | Synthetic resin baseboard |
| JPS6180933U (en) * | 1984-11-01 | 1986-05-29 |
-
1987
- 1987-02-24 JP JP62039040A patent/JPS63207626A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3394210A (en) * | 1965-07-02 | 1968-07-23 | Armstrong Cork Co | Method of making a cellular thermoplastic vinyl resin sheet material |
| GB1345540A (en) * | 1970-04-28 | 1974-01-30 | Dynamit Nobel Ag | Thermoplastic extrudates of mottled appearance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63207626A (en) | 1988-08-29 |
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