JPS6195040A - Foaming of synthetic resin - Google Patents
Foaming of synthetic resinInfo
- Publication number
- JPS6195040A JPS6195040A JP21465984A JP21465984A JPS6195040A JP S6195040 A JPS6195040 A JP S6195040A JP 21465984 A JP21465984 A JP 21465984A JP 21465984 A JP21465984 A JP 21465984A JP S6195040 A JPS6195040 A JP S6195040A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- foaming
- filler
- water
- extender
- 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
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 30
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 30
- 238000005187 foaming Methods 0.000 title claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 claims 1
- 239000004606 Fillers/Extenders Substances 0.000 abstract description 11
- 239000004088 foaming agent Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 239000006260 foam Substances 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
- 239000000654 additive Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Carpets (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、合成樹脂の発泡方法、更に詳しくは、合成
樹脂材料番こ混入する増量材を利用して層内に気泡を生
じさせる発泡方法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for foaming synthetic resin, more specifically, a foaming method for producing air bubbles in a layer using an extender mixed with a synthetic resin material. It is related to.
合成樹脂のシート状物を発泡させる一般的な方法は、合
成樹脂材料に発泡剤を混合し、この発泡剤によりシート
状合成樹脂層を科学的に発泡させろものである。A common method for foaming a synthetic resin sheet is to mix a foaming agent into a synthetic resin material and chemically foam the sheet synthetic resin layer with the foaming agent.
ところで、上記のような発泡剤の単独使用は、その分だ
け材料コストが高くつくと共（こ、所望する発泡条件を
得るには特別の技術が必要となる。By the way, the sole use of a foaming agent as described above not only increases the material cost accordingly, but also requires a special technique to obtain the desired foaming conditions.
また、発泡剤による発泡は、合成樹脂層の表裏面にまで
発生するため、例えばカーペットの裏打層の如き強度を
有する合成樹脂層の形成には向かないものである。Furthermore, since foaming caused by a foaming agent occurs on both the front and back surfaces of the synthetic resin layer, it is not suitable for forming a strong synthetic resin layer such as a carpet backing layer.
この発明は上記のような点にかんがみてなされたもので
あり、増量充填材を利用して気泡を形成することができ
、合成樹脂層の強度を低下させることなく簡単に所望す
る発泡条件を得ることができる発泡方法を提供するのが
目的である。This invention was made in view of the above-mentioned points, and it is possible to form bubbles by using an expanding filler, and to easily obtain desired foaming conditions without reducing the strength of the synthetic resin layer. The purpose of this invention is to provide a foaming method that allows for foaming.
上記のような問題点を解決するため、この発明は、°合
成樹脂材料に含水性の粉粒状増量材を混入し、この増量
材に含まれた水分を加熱により蒸発させて増量材の周辺
に気泡を生じさせるようにしたものである。In order to solve the above-mentioned problems, this invention mixes a water-containing powdery filler into a synthetic resin material, evaporates the water contained in the filler by heating, and spreads it around the filler. It is designed to generate bubbles.
合成樹脂材料に含水性、のある粉粒状の増量材を含水状
のままで混入し、溶融させた合成樹脂をシートに成形す
る。A water-containing particulate filler is mixed into a synthetic resin material in its water-containing state, and the molten synthetic resin is formed into a sheet.
シート成形後の加熱乾燥工程において、加熱によって増
量材に含まれている水分を蒸発気化させ、増量材の周辺
に気泡を生じさせることにより、合成樹脂層を発泡化す
るものである。In the heating and drying step after sheet forming, the synthetic resin layer is foamed by heating to evaporate the water contained in the filler and generate air bubbles around the filler.
以下、この発明の実施例を添付図面に基づいて説明する
。Embodiments of the present invention will be described below with reference to the accompanying drawings.
第１図は合成樹脂を使用した例としてタイルカーペット
を示しており、基布１上にループ２を設けたパイル層θ
の裏面に裏打層４を設けて形成され、例えば５０ｃｎｔ
角や３０ｃｒＩｔ角に切断加工され、裏打層４には合成
樹脂が主材料に用いられている。Figure 1 shows a tile carpet as an example of using synthetic resin, with a pile layer θ having loops 2 on the base fabric 1.
It is formed by providing a backing layer 4 on the back surface of, for example, 50 cnt.
It is cut into squares and 30 crIt squares, and the backing layer 4 is mainly made of synthetic resin.
上記裏打層４は、合成樹脂として例えば塩化ビニル樹脂
を使用し、これに可塑剤や安定剤、添加剤、増量剤５を
充填し、これらを加熱溶融させノズルから押出すことに
よって所定厚みのシート状に成形されている。The backing layer 4 is formed by using vinyl chloride resin as a synthetic resin, filling it with plasticizers, stabilizers, additives, and extenders 5, heating and melting these, and extruding them from a nozzle to form a sheet with a predetermined thickness. It is formed into a shape.
上記裏打層４を形成するための各種配合例は、塩化ビニ
ル２００ｆに対し、可塑剤２００〜３００ｆ１添加剤と
して炭酸カルシウム４００ｇ、安定剤を５ｆＩ、含水性
の粉粒状増量材５を１ａｙ程度各々混合する。Various formulation examples for forming the above-mentioned backing layer 4 include 200 f of vinyl chloride, 200 to 300 f of plasticizer, 400 g of calcium carbonate as an additive, 5 fI of stabilizer, and about 1 ay of water-containing powdery filler 5. do.
上記増量材５としては、木粉等の木質、紙質、耐熱石膏
ボードのような硬質発泡体等を例示する゛ことができ、
組成中に水分を含むものはそのまま使用し、無機質のよ
うな水分の少ないものは水分を付加する等して使用する
。Examples of the bulking material 5 include wood such as wood flour, paper, and hard foam such as heat-resistant gypsum board.
Those containing water in their composition can be used as they are, while those containing less water such as inorganic materials can be used by adding moisture.
また、各増量材５は水分を均一化する必要があり、この
ため、合成樹脂への混入前に全体を攪拌し、水分の調整
と均一化を図るようにする。Further, it is necessary to equalize the water content of each filler 5, and for this reason, the whole is stirred before being mixed into the synthetic resin to adjust and make the water content uniform.
次に、裏打層４の成形を行なうには、合成樹脂材料に他
の充填物と共に増量材５を充填し、加熱により樹脂材料
を溶融させてこれらを混合し、ノズルから押出すことに
よって所定幅と厚みを有するシートに成形する。
３、。Next, in order to form the backing layer 4, the synthetic resin material is filled with the filler 5 along with other fillers, the resin material is melted by heating, the mixture is mixed, and the mixture is extruded to a predetermined width through a nozzle. Form into a sheet with a thickness of .
3.
押出し成形されたシートを次にヒータ等で加熱し、乾燥
工程を行なう。The extruded sheet is then heated with a heater or the like to perform a drying process.
このとき・の加熱温度により、含水状態にある増量材５
の水分が蒸発し、気化した水分は体積が増大するため、
その圧力で増量材５の周囲に位置する合成樹脂を押広げ
ることになり、従って第２図に示すように各増量材５の
周辺に気泡６が発生し、合成樹脂シートを発泡化するも
のである。At this time, due to the heating temperature, the filler 5 is in a water-containing state.
evaporates, and the volume of the evaporated water increases, so
The pressure causes the synthetic resin located around the extender 5 to be expanded, and therefore air bubbles 6 are generated around each extender 5 as shown in FIG. 2, causing the synthetic resin sheet to foam. be.
上記気泡６の大きさは、増量材５の含水量や加熱温度を
調整することによって自由に選ぶことができ、加熱工程
は加熱を数回総返し行なって所望の発泡状態を得るよう
にしてもよい。The size of the bubbles 6 can be freely selected by adjusting the water content and heating temperature of the filler 5, and the heating process may be repeated several times to obtain the desired foamed state. good.
上記のように、各増量材５の周辺に気泡６が生じること
により、シートの嵩が高くなると共に、気泡６による発
泡化によって全体の弾力性を良くするものである。As mentioned above, the formation of the air bubbles 6 around each filler 5 increases the bulk of the sheet, and the foaming caused by the air bubbles 6 improves the elasticity of the entire sheet.
なお、増量材５の充填量を選ぶことにより、独立気泡、
連続気泡の何れの発泡状態を得ることができる。In addition, by selecting the filling amount of the filler 5, closed cell,
Any foaming state of open cells can be obtained.
また、タイルカーペットの裏打、Ｖ ４として使用する
場合、床面との接触下面に粘着性があり、人体の荷重が
加わった場合、自由に移動することのないように合成樹
脂材料の粘度を設定すると共に、敷設作業時には移動性
があって位置調整が容易になるよう、下面を凹凸面に形
成するのが好ましい。In addition, when used as a backing for tile carpets or as V4, the viscosity of the synthetic resin material is set so that the bottom surface that contacts the floor is sticky and does not move freely when subjected to the weight of the human body. At the same time, it is preferable to form the lower surface into an uneven surface so that it is movable and the position can be easily adjusted during the installation work.
この凹凸面の形成は、金型による成形のほか、増量材５
の一部を下面側へ突出させることによっても形成できろ
。This uneven surface can be formed by molding with a mold or by using an extender material 5.
It can also be formed by protruding a part of it to the lower surface side.
以上のように、この発明によると、合成樹脂材料に含水
性の粉粒状充填増量材を混合し、増量材に含まれた水分
を加熱により蒸発させ、気化した水分で増量材の周辺に
気泡を生じさせるようにしたので、合成樹脂層の発泡が
増量材を使用するのみで行なえ、発泡用薬剤の使用が省
けるので、合成樹脂発泡化のコストダウンを図ることが
でき、しかも含水量や加熱温度を調整するだけで、所望
する発泡状態を簡単に得ることができる。As described above, according to the present invention, a hydrous powder filler is mixed with a synthetic resin material, the moisture contained in the filler is evaporated by heating, and the vaporized water forms air bubbles around the filler. As a result, the synthetic resin layer can be foamed only by using an extender, and the use of foaming agents can be omitted, reducing the cost of foaming the synthetic resin. The desired foaming state can be easily obtained by simply adjusting the .
また、増量材と気泡により合成樹脂層の嵩上げを有効に
行なえると共に、弾力性の改善や硬度の調整が手軽に行
なえる。Furthermore, the synthetic resin layer can be effectively bulked up using the filler and air bubbles, and elasticity can be improved and hardness can be easily adjusted.
第１図はこの発明の発泡方法を使用したタイルカーペッ
トの縦断面図、第２図は同上の発泡部分を示す拡大断面
図である。
３・・パイル層、４・・・裏打層、５・・・増量材、６
・・気泡FIG. 1 is a longitudinal sectional view of a tile carpet using the foaming method of the present invention, and FIG. 2 is an enlarged sectional view showing the foamed portion of the same. 3...Pile layer, 4...Backing layer, 5...Extending material, 6
・Bubble
Claims (1)
の増量材に含まれた水分を加熱により蒸発させて増量材
の周辺に気泡を生じさせることを特徴とする合成樹脂の
発泡方法。A synthetic resin foaming method characterized by mixing a water-containing powder filler filler into a synthetic resin material and evaporating the water contained in the filler by heating to generate air bubbles around the filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21465984A JPS6195040A (en) | 1984-10-13 | 1984-10-13 | Foaming of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21465984A JPS6195040A (en) | 1984-10-13 | 1984-10-13 | Foaming of synthetic resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6195040A true JPS6195040A (en) | 1986-05-13 |
| JPS6332815B2 JPS6332815B2 (en) | 1988-07-01 |
Family
ID=16659429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21465984A Granted JPS6195040A (en) | 1984-10-13 | 1984-10-13 | Foaming of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6195040A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321704A (en) * | 1976-08-11 | 1978-02-28 | Kraftwerk Union Ag | Device for centering coil support cylinder in hollow cylindrical rotor itself |
-
1984
- 1984-10-13 JP JP21465984A patent/JPS6195040A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321704A (en) * | 1976-08-11 | 1978-02-28 | Kraftwerk Union Ag | Device for centering coil support cylinder in hollow cylindrical rotor itself |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6332815B2 (en) | 1988-07-01 |
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