JP2603709B2 - Roof base material and its manufacturing method - Google Patents
Roof base material and its manufacturing methodInfo
- Publication number
- JP2603709B2 JP2603709B2 JP31686288A JP31686288A JP2603709B2 JP 2603709 B2 JP2603709 B2 JP 2603709B2 JP 31686288 A JP31686288 A JP 31686288A JP 31686288 A JP31686288 A JP 31686288A JP 2603709 B2 JP2603709 B2 JP 2603709B2
- Authority
- JP
- Japan
- Prior art keywords
- coal tar
- base material
- resin
- roof base
- felt paper
- 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
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Description
本発明は耐熱性及び耐滑性に優れた屋根下地材に関す
る。TECHNICAL FIELD The present invention relates to a roof base material having excellent heat resistance and slip resistance.
従来より、フェルト紙にタールを含浸させ、表面に付
着防止用の硅砂を撒布して屋根下地材が製造されてい
る。BACKGROUND ART Conventionally, roof base materials have been manufactured by impregnating felt paper with tar and spraying silica sand for preventing adhesion on the surface.
従来の屋根下地材は防水性に優れるものの、耐熱性に
劣り、50〜60℃程度で表面がべと付き、作業性及び保管
性が悪く、又、硅砂が作業時の環境内（−５〜80℃）で
落砂し易く、滑り易くなってしまっていた。 本発明は上記問題を解決するために為されたものであ
り、その目的とするところは耐熱性及び耐滑性に優れた
屋根下地材を提供することにある。Although the conventional roofing material is excellent in waterproofness, it is inferior in heat resistance, has a sticky surface at about 50 to 60 ° C, and has poor workability and storage properties. (80 ° C), it was easy to fall and became slippery. The present invention has been made to solve the above problems, and an object of the present invention is to provide a roof base material having excellent heat resistance and slip resistance.
本発明の屋根下地材は、樹脂を配合させたコールター
ル１を含浸させたフェルト紙２に樹脂粉末３を撒布して
成るものであり、その製造方法は、フェルト紙２に樹脂
を配合させたコールタール１を含浸させ、次いでPVC粉
末3aを撒布して65℃以上に加温す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］ フェルト紙２に樹脂を配合させたコールタール１を含
浸させているので、耐熱性が向上するものであり、しか
もフェルト紙２に含浸させたコールタール１中の樹脂分
により樹脂粉末３のフェルト紙２への密着性が優れるも
のであり、下地材の作業環境でも樹脂粉末３が落砂する
ことがないものである。 以下本発明を添付の図面に示す実施例に基づいて説明
する。 フェルト紙２に樹脂を配合させたコールタール１が含
浸される。コールタール１に配合する樹脂としてはMM
A、IBMA、PVC、熱可塑性ウレタン、ABS等である。この
樹脂の配合割合はコールタール１に対して１〜10重量％
である。１重量％未満であると効果がなく、10重量％を
超えるとコールタール１中に樹脂が沈澱してしまい配合
量に対比して効果的ではない。コールタール１が含浸さ
れたフェルト紙２には樹脂粉末３が撒布される。樹脂粉
末３としてはPVC粉砕品がフェルト紙２と密着し易く、
好ましい。 コールタール１は常温で液体であるため、屋根作業の
環境内温度（−５〜80℃）では、特に高温側で樹脂粉末
３の密着力を保持しにくいので、樹脂を配合している
が、コールタール１自体の耐熱性を向上させるためにピ
ッチ（軟化点100±２℃）を65重量％以上配合するのが
好ましい。例えば、MMA（軟化点105℃）10重量％を配合
したコールタール１のピッチ含有量が65重量％の場合に
はPVC粉末が落砂する温度は75℃であり、ピッチ含有量
が70重量％の場合には落砂する温度は82℃である。 屋根下地材Ａは、第２図に示すようなラインにより製
造される。まず、フェルト紙２がヒート板などにより加
温され、この状態でコールタール１が塗布され、次いで
樹脂粉末３が撒布され（第３図（ａ））、この後乾燥ロ
ール４により乾燥される。この場合、乾燥ロール4a、4b
によりコールタール１はフェルト紙２の内部にわずかに
含浸され（第３図（ｂ））、乾燥ロール4c、4dによりコ
ールタール１はフェルト紙２の内部にまで含浸される
（第３図（ｃ））。この後、プレスロール５によりプレ
スされ、コールタール１が均一に含浸されて製品である
屋根下地材Ａ（第３図（ｄ））が製造され、巻取ロール
６により巻取られる。フェルト紙２の加熱温度は80〜13
0℃、乾燥ロール４の温度は65〜100℃で実施される。 次に、本発明の実施例を示す。以下において、％とあ
るのは重量％を示す。 （実施例１） ピッチの含有量が65％のコールタールにMMA樹脂（Mn:
40000、Tg:105℃）を３％配合した。 100g/m2のフェルト紙を105〜110℃に加熱し、105〜11
0℃に加温したコールタールにディッピングすると共に
コールタールを塗布して含浸量80g/m2の割合でフェルト
紙に含浸させた。 次いで、フェルト紙の表面にPVC粉末を20g/m2の量撒
布し、乾燥ロールにより95±５℃で乾燥した。 このようにして製造した屋根下地材のPVC粉末の固着
力を常温と75℃で測定した。結果を第１表に示す。 （実施例２〜４） MMA樹脂を１％（実施例２）、２％（実施例３）及び
４％（実施例４）配合した以外は実施例１と同様にして
屋根下地材を製造し、同様の測定を行った。結果を第１
表に示す。 尚、MMA樹脂を４％配合した場合には、未溶解分があ
った。 （比較例） MMA樹脂を配合しなかった以外は、実施例１と同様に
して屋根下地材を製造し、実施例１と同様の測定を行っ
た。結果を第１表に示す。 測定方法 PVC粉末表面にスリオンテープを貼り、一気に剥離さ
せた時のPVC粉末残存率で表した。 ◎ 80％以上 ○ 50〜80％ △ 25〜50％ × 25％以下 第１表の結果より明らかなように、実施例の場合にあ
っては屋根作業の環境内温度では実用上問題のない固着
力を有するものである。The roof base material of the present invention is formed by spraying resin powder 3 on felt paper 2 impregnated with coal tar 1 mixed with resin, and the manufacturing method is to mix resin with felt paper 2. The coal tar 1 is impregnated, then the PVC powder 3a is sprinkled and heated to 65 ° C. or higher, and the above-mentioned problem has been solved by this configuration. [Function] Since the felt paper 2 is impregnated with the coal tar 1 in which the resin is mixed, the heat resistance is improved, and the resin powder 3 is formed by the resin content in the coal tar 1 impregnated into the felt paper 2. Is excellent in the adhesiveness to the felt paper 2, and the resin powder 3 does not fall down in the working environment of the base material. The present invention will be described below based on embodiments shown in the accompanying drawings. The felt tar 2 is impregnated with coal tar 1 in which a resin is blended. MM is the resin to be used in coal tar 1.
A, IBMA, PVC, thermoplastic urethane, ABS and the like. The mixing ratio of this resin is 1 to 10% by weight with respect to coal tar 1.
It is. If the amount is less than 1% by weight, there is no effect, and if it exceeds 10% by weight, the resin precipitates in the coal tar 1 and it is not effective as compared with the compounding amount. Resin powder 3 is sprayed on felt paper 2 impregnated with coal tar 1. As the resin powder 3, a PVC pulverized product easily adheres to the felt paper 2,
preferable. Since coal tar 1 is a liquid at room temperature, it is difficult to maintain the adhesion of the resin powder 3 particularly at the high temperature side at the environmental temperature (-5 to 80 ° C.) of the roof work. In order to improve the heat resistance of the coal tar 1, the pitch (softening point: 100 ± 2 ° C.) is preferably blended by 65% by weight or more. For example, if the pitch content of coal tar 1 containing 10% by weight of MMA (softening point 105 ° C) is 65% by weight, the temperature at which the PVC powder falls is 75 ° C and the pitch content is 70% by weight. In this case, the temperature at which sand falls is 82 ° C. The roof base material A is manufactured by a line as shown in FIG. First, the felt paper 2 is heated by a heating plate or the like, and in this state, the coal tar 1 is applied, then the resin powder 3 is sprayed (FIG. 3A), and then dried by the drying roll 4. In this case, the drying rolls 4a, 4b
The coal tar 1 is slightly impregnated into the felt paper 2 by means of (FIG. 3 (b)), and the coal tar 1 is impregnated into the felt paper 2 by the drying rolls 4c and 4d (FIG. 3 (c)). )). Thereafter, the product is pressed by a press roll 5 to uniformly impregnate the coal tar 1 to produce a roof base material A (FIG. 3 (d)), which is a product, and is taken up by a take-up roll 6. Heating temperature of felt paper 2 is 80 ~ 13
The temperature of the drying roll 4 is set at 65 to 100 ° C. Next, examples of the present invention will be described. In the following, “%” indicates “% by weight”. (Example 1) MMA resin (Mn:
40000, Tg: 105 ° C) in an amount of 3%. Felt paper 100 g / m 2 was heated to devices 105 through 110 ° C., 105 to 11
Coal tar was heated at 0 ° C., dipped and coated with coal tar to impregnate felt paper at an impregnation rate of 80 g / m 2 . Next, 20 g / m 2 of PVC powder was spread on the surface of the felt paper, and dried at 95 ± 5 ° C. with a drying roll. The fixing power of the PVC powder of the roof base material thus manufactured was measured at room temperature and 75 ° C. The results are shown in Table 1. (Examples 2 to 4) Roof base materials were manufactured in the same manner as in Example 1 except that 1% (Example 2), 2% (Example 3) and 4% (Example 4) were blended with the MMA resin. The same measurement was performed. First result
It is shown in the table. In addition, when 4% of MMA resin was blended, there were undissolved components. Comparative Example A roof base material was manufactured in the same manner as in Example 1 except that the MMA resin was not blended, and the same measurement as in Example 1 was performed. The results are shown in Table 1. Measuring method Slion tape was attached to the surface of the PVC powder, and was expressed as the residual ratio of the PVC powder when the PVC powder was peeled off at a stretch. ◎ 80% or more ○ 50 to 80% △ 25 to 50% × 25% or less As is clear from the results in Table 1, in the case of the examples, the solid temperature which has no practical problem at the temperature in the environment of the roof work. It has an adhesive force.
本発明にあっては、フェルト紙に樹脂を配合させたコ
ールタールを含浸させているので、耐熱性が向上するも
のであり、しかもフェルト紙に含浸させたコールタール
中の樹脂分により樹脂粉末のフェルト紙への密着性が優
れるものであり、下地材の作業環境でも樹脂粉末が落砂
することがないものである。In the present invention, since the felt paper is impregnated with the coal tar in which the resin is blended, the heat resistance is improved, and the resin powder in the coal tar impregnated with the felt paper is used to form the resin powder. It has excellent adhesion to felt paper, and does not cause resin powder to fall down in the working environment of the base material.
第１図は本発明の屋根下地材を示す断面図、第２図は同
上の製造方法を実施するためのラインを示す概略図、第
３図（ａ）（ｂ）（ｃ）（ｄ）は同上の製造工程を示す
説明図であって、Ａは屋根下地材、１はコールタール、
２はフェルト紙、３は樹脂粉末である。FIG. 1 is a cross-sectional view showing a roof base material of the present invention, FIG. 2 is a schematic view showing a line for carrying out the same manufacturing method, and FIGS. 3 (a), (b), (c) and (d) are It is explanatory drawing which shows a manufacturing process same as the above, A is a roof base material, 1 is coal tar,
2 is felt paper and 3 is resin powder.
Claims (4)
たフェルト紙に樹脂粉末を撒布して成ることを特徴とす
る屋根下地材。1. A roof base material characterized by spraying resin powder on felt paper impregnated with coal tar mixed with resin.
％以上であることを特徴とする請求項１記載の屋根下地
材。2. The roof base material according to claim 1, wherein the pitch content in the coal tar is 65% by weight or more.
せていることを特徴とする請求項１記載の屋根下地材。3. The roof base material according to claim 1, wherein 1 to 10% by weight of a resin is mixed with the coal tar.
ルを含浸させ、次いで樹脂粉末を撒布して65℃以上に加
温することを特徴とする屋根下地材の製造方法。4. A method of manufacturing a roof base material, comprising: impregnating a felt paper with a coal tar containing a resin, spraying a resin powder, and heating to a temperature of 65 ° C. or higher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31686288A JP2603709B2 (en) | 1988-12-15 | 1988-12-15 | Roof base material and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31686288A JP2603709B2 (en) | 1988-12-15 | 1988-12-15 | Roof base material and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02164972A JPH02164972A (en) | 1990-06-25 |
| JP2603709B2 true JP2603709B2 (en) | 1997-04-23 |
Family
ID=18081744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31686288A Expired - Lifetime JP2603709B2 (en) | 1988-12-15 | 1988-12-15 | Roof base material and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2603709B2 (en) |
-
1988
- 1988-12-15 JP JP31686288A patent/JP2603709B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02164972A (en) | 1990-06-25 |
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