JP2603728B2 - Manufacturing method of soundproof flooring - Google Patents
Manufacturing method of soundproof flooringInfo
- Publication number
- JP2603728B2 JP2603728B2 JP1233874A JP23387489A JP2603728B2 JP 2603728 B2 JP2603728 B2 JP 2603728B2 JP 1233874 A JP1233874 A JP 1233874A JP 23387489 A JP23387489 A JP 23387489A JP 2603728 B2 JP2603728 B2 JP 2603728B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber sheet
- nonwoven fabric
- cushion material
- foamed rubber
- 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 - Fee Related
Links
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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Description
本発明は防音性を向上させたスラブに直貼りが可能な
防音床材に関する。TECHNICAL FIELD The present invention relates to a soundproof flooring material that can be directly attached to a slab with improved soundproofness.
防音床材としては、本発明者等は第４図に示すように
基板１の裏面側から表面側に向けて複数の切溝２を切り
込み、基板１の裏面に順次不織布クッション材３と発泡
ゴムシート４を積層させて構成したものを開発してい
る。 この場合、不織布クッション材３と発泡ゴムシート４
は、第４図に示すようにゴムシート８をベルトコンベア
10により熱風炉11内に搬入して発泡させる際にゴムシー
ト８上に不織布クッション材３を供給し、ウエイトロー
ラ12により発泡ゴムシート４と不織布クッション材３を
圧着させることにより積層一体化させている。As shown in FIG. 4, the present inventors cut a plurality of cut grooves 2 from the back side of the substrate 1 toward the front side as shown in FIG. We are developing a product that is formed by laminating the sheets 4. In this case, the nonwoven fabric cushion material 3 and the foamed rubber sheet 4
Is a belt conveyor as shown in FIG.
The nonwoven fabric cushion material 3 is supplied onto the rubber sheet 8 when it is carried into the hot blast furnace 11 and foamed by 10, and the foamed rubber sheet 4 and the nonwoven fabric cushion material 3 are laminated and integrated by pressing with the weight roller 12. I have.
従来にあっては熱風炉内の温度は180〜200℃と高温に
しなければならないため、熱風により不織布クッション
材３が収縮してしまったり、又、ゴムシート８上に不織
布クッション材９を供給するためにゴムシート８への熱
伝達が悪くなり、熱風炉11内でのベルトコンベア10のス
ピードを低下させなくてはならなく、生産性が低くなっ
てしまっており、更に発泡ゴムシート４と不織布クッシ
ョン材３の収縮量の差により圧着時にしわが発生してし
まっていた。 本発明は上記事情に鑑みて為されたものであり、その
目的とするところは、不織布クッション材の熱収縮が小
さくなり、又、発泡ゴムシートの発泡スピードが上昇
し、生産性が低下することがなく、しかも発泡ゴムシー
トと不織布クッション材との貼り合わせ時にしわが発生
することがない防音床材の製造方法を提供することにあ
る。Conventionally, the temperature in the hot blast stove must be as high as 180 to 200 ° C., so that the non-woven fabric cushion material 3 shrinks due to the hot air, or the non-woven fabric cushion material 9 is supplied on the rubber sheet 8. Therefore, heat transfer to the rubber sheet 8 is deteriorated, and the speed of the belt conveyor 10 in the hot blast stove 11 has to be reduced. As a result, the productivity has been reduced. Due to the difference in the amount of shrinkage of the cushion material 3, wrinkles were generated during pressure bonding. The present invention has been made in view of the above circumstances, and aims to reduce the heat shrinkage of the nonwoven fabric cushioning material, increase the foaming speed of the foamed rubber sheet, and reduce the productivity. It is another object of the present invention to provide a method of manufacturing a soundproof flooring material which does not have wrinkles and does not generate wrinkles when bonding a foamed rubber sheet and a nonwoven fabric cushioning material.
本発明は、基板１の裏面側から表面側に向けて複数の
切溝２を切り込み、基板１の裏面にに順次不織布クッシ
ョン材３と発泡ゴムシート４を積層させた防音床材の製
造方法において、ゴムシート８を加熱発泡させて発泡ゴ
ムシート４を形成し、この発泡ゴムシート４の保有熱量
によりホットメルト不織布９を溶融させて不織布クッシ
ョン材３を積層一体化させることを特徴とするものであ
り、この構成により上記課題が解決されたものである。 ［作用］ 発泡ゴムシート４の保有熱量によりホットメルト不織
布９を溶融させて不織布クッション材３を積層一体化さ
せるので、不織布クッション材３が熱収縮することがな
く、又、発泡ゴムシート４の発泡に際して不織布クッシ
ョン材３により熱伝達が悪くなることもなく、しかも不
織布クッション材３と発泡ゴムシート４の圧着に際して
しわが発生することもない。 ［実施例］ 基板１は、例えば2.5〜4mm厚の合板５の表面に0.3mm
厚程度のなら材のような突板６が貼着されたものであ
り、この基板１の合板５には裏面側から表面側に向けて
複数の切溝２が設けられている。この切溝２は格子状に
設けられている。切溝２は例えば幅が3mmでピッチが60m
mで切り込まれる。この切溝２は合板１の表面にまでは
至っていない。 この基板１の合板５と突板６の間には防振シート７が
介装されている。防振シート７としては、不織布とか天
然ゴム、合成ゴム、ウレタン樹脂、シリコン樹脂等の軟
質材で、通常1mm以下の厚みの軟質材である。この場
合、NRシート、SBRシートのような合成ゴムシートのゴ
ム分率を上げることにより、衝撃をさらに反発させて防
振性を向上させるようにすればよい。 この基板１の合板５の裏面には順次２〜2.5mm厚の不
織布クッション材３と2.5〜4mm厚の発泡ゴムシート４が
積層されている。不織布クッション材３としては例えば
ポリエステル系であり、発泡ゴムシート４としては天然
ゴムにSBR合成ゴムが60〜80重量％、その他加硫剤（発
泡剤を含む）、軟化剤から形成されたゴムシート８を発
泡させたものである。 不織布クッション材３と発泡ゴムシート４の積層一体
化は次のようにしてなされる。 第１図に示すようにゴムシート８がベルトコンベア10
により熱風炉11内に搬入され発泡されて発泡ゴムシート
４が形成される。この発泡ゴムシート４はベルトコンベ
ア10の金網のベルトにより裏面が第３図に示すように格
子状に突出している。熱風炉11内は190℃前後に調整さ
れている。発泡ゴムシート４が熱風炉11から搬出された
直後に発泡ゴムシート４の上に、第２図に示す裏面にポ
リアミド系のホットメルト不織布９が貼着された不織布
クッション材３を供給して保温カバー13内で発泡ゴムシ
ート４の保有熱量によりホットメルト不織布９を溶融
（溶融温度70〜90℃）させてウエイトローラー12により
発泡ゴムシート４と不織布クッション材３を圧着一体化
させる。 このようにして製造された防音床材Ａは防音性がＬ−
45レベルに確保され、例えば建物のコンクリートスラブ
のようなコンクリート面上に接着剤を介して直接貼着し
て敷設される。The present invention relates to a method for manufacturing a soundproof flooring material in which a plurality of cut grooves 2 are cut from the back side of the substrate 1 toward the front side, and a nonwoven fabric cushion material 3 and a foam rubber sheet 4 are sequentially laminated on the back surface of the substrate 1. The foamed rubber sheet 4 is formed by heating and foaming the rubber sheet 8, and the hot melt nonwoven fabric 9 is melted by the amount of heat of the foamed rubber sheet 4 to laminate and integrate the nonwoven fabric cushioning material 3. This configuration solves the above-mentioned problem. [Function] Since the hot melt nonwoven fabric 9 is melted by the amount of heat held by the foamed rubber sheet 4 and the nonwoven fabric cushioning material 3 is laminated and integrated, the nonwoven fabric cushioning material 3 does not thermally shrink and the foamed rubber sheet 4 is foamed. In this case, heat transfer is not deteriorated by the nonwoven fabric cushion material 3 and wrinkles do not occur when the nonwoven fabric cushion material 3 and the foamed rubber sheet 4 are pressed. [Example] The substrate 1 is, for example, 0.3 mm
If the thickness is about the thickness, a protruding plate 6 such as a material is stuck, and a plurality of cut grooves 2 are provided on the plywood 5 of the substrate 1 from the back side to the front side. The cut grooves 2 are provided in a lattice shape. The kerf 2 has a width of 3 mm and a pitch of 60 m, for example.
Cut at m. This cut groove 2 does not reach the surface of the plywood 1. An anti-vibration sheet 7 is interposed between the plywood 5 and the veneer 6 of the substrate 1. The vibration isolating sheet 7 is a soft material such as nonwoven fabric, natural rubber, synthetic rubber, urethane resin, silicon resin, etc., and is usually a soft material having a thickness of 1 mm or less. In this case, by increasing the rubber fraction of a synthetic rubber sheet such as an NR sheet or an SBR sheet, the impact may be further repelled to improve the vibration isolation. A nonwoven fabric cushion material 3 having a thickness of 2 to 2.5 mm and a foam rubber sheet 4 having a thickness of 2.5 to 4 mm are sequentially laminated on the back surface of the plywood 5 of the substrate 1. The non-woven fabric cushion material 3 is, for example, a polyester-based material, and the foamed rubber sheet 4 is a rubber sheet formed of natural rubber containing 60 to 80% by weight of SBR synthetic rubber, and other vulcanizing agents (including a foaming agent) and a softening agent. 8 is foamed. The lamination and integration of the nonwoven fabric cushion material 3 and the foamed rubber sheet 4 are performed as follows. As shown in FIG. 1, the rubber sheet 8 is
Thus, the foamed rubber sheet 4 is formed by being carried into the hot blast stove 11 and foamed. This foamed rubber sheet 4 has a back surface protruding in a lattice shape as shown in FIG. 3 by a wire mesh belt of the belt conveyor 10. The temperature inside the hot blast stove 11 is adjusted to around 190 ° C. Immediately after the foamed rubber sheet 4 is carried out of the hot blast stove 11, the nonwoven fabric cushion material 3 having the polyamide-based hot melt nonwoven fabric 9 adhered to the back surface shown in FIG. The hot-melt nonwoven fabric 9 is melted (melting temperature 70 to 90 ° C.) in the cover 13 by the retained heat of the foamed rubber sheet 4, and the foamed rubber sheet 4 and the nonwoven fabric cushion material 3 are pressure-bonded and integrated by the weight roller 12. The soundproofing flooring material A manufactured in this manner has a soundproofing property of L-.
It is secured at 45 levels and is laid directly on a concrete surface such as a concrete slab of a building via an adhesive.
本発明は、基板の裏面側から表面側に向けて複数の切
溝を切り込み、基板の裏面に順次不織布クッション材と
発泡ゴムシートを積層させた防音床材の製造方法におい
て、ゴムシートを加熱発泡させた発泡ゴムシートを形成
し、この発泡ゴムシートの保有熱量によりホットメルト
不織布を溶融させて不織布クッション材を積層一体化さ
せるので、不織布クッション材が熱収縮することがな
く、又、発泡ゴムシートの発泡に際して不織布クッショ
ン材により熱伝達が悪くなり、生産性を低下させること
もなく、しかも不織布クッション材と発泡ゴムシートの
圧着に際してしわが発生することもない。The present invention relates to a method for manufacturing a soundproof flooring material in which a plurality of cut grooves are cut from the back surface side of the substrate toward the front surface side, and a nonwoven fabric cushion material and a foam rubber sheet are sequentially laminated on the back surface of the substrate. The foamed rubber sheet is formed, and the hot-melt nonwoven fabric is melted by the amount of heat held by the foamed rubber sheet so that the nonwoven fabric cushion material is laminated and integrated, so that the nonwoven fabric cushion material does not thermally shrink and the foamed rubber sheet The heat transfer is not deteriorated by the nonwoven fabric cushion material during foaming, and the productivity is not reduced, and wrinkles do not occur when the nonwoven fabric cushion material and the foamed rubber sheet are pressed.
第１図は本発明の一実施例を説明する概略図、第２図及
び第３図は同上における不織布クッション材と発泡ゴム
シートとの積層一体化を示す断面図、第４図は同上によ
り製造された防音床材を示す断面図、第５図は従来例を
説明する概略図であって、Ａは防音床材、１は基板、２
は切溝、３は不織布クッション材、４は発泡ゴムシー
ト、８はゴムシート、９はホットメルト不織布である。FIG. 1 is a schematic view for explaining one embodiment of the present invention, FIGS. 2 and 3 are cross-sectional views showing the lamination and integration of a nonwoven fabric cushion material and a foamed rubber sheet in the above, and FIG. FIG. 5 is a schematic view illustrating a conventional example of a soundproof floor material, wherein A is a soundproof floor material, 1 is a substrate, 2
Is a cut groove, 3 is a nonwoven fabric cushion material, 4 is a foamed rubber sheet, 8 is a rubber sheet, and 9 is a hot melt nonwoven fabric.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 21:00 105:04 Ｂ２９Ｌ 9:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code Agency reference number FI Technical display location B29K 21:00 105: 04 B29L 9:00
Claims (1)
溝を切り込み、基板の裏面に順次不織布クッション材と
発泡ゴムシートを積層させた防音床材の製造方法におい
て、ゴムシートを加熱発泡させて発泡ゴムシートを形成
し、この発泡ゴムシートの保有熱量によりホットメルト
不織布を溶融させて不織布クッション材を積層一体化さ
せることを特徴とする防音床材の製造方法。In a method of manufacturing a soundproof flooring material, a plurality of cut grooves are cut from the back surface side of the substrate to the front surface side, and a nonwoven fabric cushion material and a foam rubber sheet are sequentially laminated on the back surface of the substrate. A method for producing a soundproof flooring material, comprising forming a foamed rubber sheet by foaming, melting a hot-melt nonwoven fabric by the retained heat of the foamed rubber sheet, and laminating and integrating a nonwoven fabric cushion material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1233874A JP2603728B2 (en) | 1989-09-09 | 1989-09-09 | Manufacturing method of soundproof flooring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1233874A JP2603728B2 (en) | 1989-09-09 | 1989-09-09 | Manufacturing method of soundproof flooring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0396323A JPH0396323A (en) | 1991-04-22 |
| JP2603728B2 true JP2603728B2 (en) | 1997-04-23 |
Family
ID=16961923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1233874A Expired - Fee Related JP2603728B2 (en) | 1989-09-09 | 1989-09-09 | Manufacturing method of soundproof flooring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2603728B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003091784A (en) * | 2001-09-19 | 2003-03-28 | Optex Co Ltd | Multistage type active infrared sensor |
-
1989
- 1989-09-09 JP JP1233874A patent/JP2603728B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0396323A (en) | 1991-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |