JP2000351128A - Manufacture of foamed molding - Google Patents
Manufacture of foamed moldingInfo
- Publication number
- JP2000351128A JP2000351128A JP11166457A JP16645799A JP2000351128A JP 2000351128 A JP2000351128 A JP 2000351128A JP 11166457 A JP11166457 A JP 11166457A JP 16645799 A JP16645799 A JP 16645799A JP 2000351128 A JP2000351128 A JP 2000351128A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- discharge holes
- holes
- molded article
- foaming machine
- 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
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
- B29L2031/504—Soles
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発泡成形体の製造
法に関する。更に詳しくは、靴底のミッドソール等とし
て好適に使用しうる発泡成形体の製造法に関する。[0001] The present invention relates to a method for producing a foam molded article. More specifically, the present invention relates to a method for producing a foamed molded article that can be suitably used as a midsole of a shoe sole.
【０００２】[0002]
【従来の技術】ミッドソールを製造する際に使用される
ウレタン靴底用低圧発泡機の吐出部には、通常、直径５
〜１０ｍｍの円形の吐出孔が１カ所又は２カ所設けられ
ている。2. Description of the Related Art The discharge section of a low-pressure foaming machine for urethane soles used in manufacturing a midsole usually has a diameter of 5 mm.
One or two circular discharge holes of 10 mm to 10 mm are provided.
【０００３】しかし、この発泡機を用いて密度０．２５
ｇ／ｃｍ3 程度の低密度のミッドソールを成形すると、
ボイド（成形体内部に生じるエア溜まり）やエア欠け
（複雑な内面形状に液状成形材料及び／又は発泡体が十
分に充填しないために生じる表面欠陥）が発生したり、
充填不足を生じやすいという欠点がある。However, using this foaming machine, a density of 0.25
When molding the midsole g / cm 3 as low density,
Voids (air accumulation inside the molded body) and air chips (surface defects caused by insufficient filling of the liquid molding material and / or foam into the complicated inner surface shape),
There is a disadvantage that underfilling is likely to occur.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、成形時にボ
イドやエア欠け等の成形体の表面性を低下させる欠陥
や、充填不足を生じがたい発泡成形体の製造法を提供す
ることを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a foamed molded article which is unlikely to cause defects such as voids or air chips at the time of molding to lower the surface properties of the molded article and to prevent insufficient filling. And
【０００５】[0005]
【課題を解決するための手段】本発明は、孔径１〜８ｍ
ｍの吐出孔を３個以上有し、その両端の吐出孔間距離
（Ｗ）が３０〜１００ｍｍであるノズル部を有する発泡
機を用いて成形する発泡成形体の製造法に関する。According to the present invention, there is provided a method for manufacturing a semiconductor device having a hole diameter of 1 to 8 m.
The present invention relates to a method for producing a foamed molded article, which is formed by using a foaming machine having a nozzle part having three or more discharge holes having a diameter of 30 m and having a distance (W) between discharge holes at both ends of 30 to 100 mm.
【０００６】[0006]
【発明の実施の形態】本発明の製造法においては、孔径
１〜８ｍｍの吐出孔を３個以上有し、その両端の吐出孔
間距離（Ｗ）が３０〜１００ｍｍであるノズル部を有す
る発泡機が用いられているので、ボイドや側面意匠の欠
陥が発生することがなく、充填不足がほとんどない発泡
成形体を得ることができる。BEST MODE FOR CARRYING OUT THE INVENTION In the production method of the present invention, a foam having a nozzle portion having three or more discharge holes having a hole diameter of 1 to 8 mm and a distance (W) between discharge holes at both ends of 30 to 100 mm is provided. Since the machine is used, it is possible to obtain a foamed molded article which is free from voids and defects in side designs, and has almost no insufficient filling.
【０００７】図１は、本発明に用いられる発泡機の吐出
部の一実施態様を示す概略説明図である。FIG. 1 is a schematic explanatory view showing one embodiment of a discharge section of a foaming machine used in the present invention.
【０００８】図１に示されるように、ノズル部１には、
複数の吐出孔２が配設されている。配設される吐出孔２
の数は、発泡成形体のエア欠け及びボイドの発生を抑制
する観点から、３個以上とされる。好ましい吐出孔２の
数は、３〜１０個、より好ましくは４〜９個、更に好ま
しくは４〜６個である。吐出孔２の配置に関しては、各
吐出孔２が一列に並ぶように、あるいは２〜３列に配列
されていてもよく、更に同心円状に１〜３個の円弧を描
くように配列されていてもよい。各吐出孔２間の間隔
は、特に限定がないが、発泡成形体の内部にボイドが発
生するのを抑制する観点から、１．５〜２０ｍｍ、好ま
しくは２〜１５ｍｍであることが望ましい。[0008] As shown in FIG.
A plurality of discharge holes 2 are provided. Discharge port 2 to be arranged
Is set to 3 or more from the viewpoint of suppressing the generation of air chips and voids in the foam molded article. The preferred number of discharge holes 2 is 3 to 10, more preferably 4 to 9, and even more preferably 4 to 6. Regarding the arrangement of the discharge holes 2, the discharge holes 2 may be arranged in a line, or may be arranged in two or three lines, and may be arranged so as to draw one to three arcs concentrically. Is also good. The interval between the discharge holes 2 is not particularly limited, but is preferably 1.5 to 20 mm, and more preferably 2 to 15 mm, from the viewpoint of suppressing the generation of voids inside the foamed molded product.
【０００９】ノズル部１の形状は、特に限定されるもの
ではないが、液状成形材料供給孔３から供給された液状
成形材料がノズル部１内に均一に充填される形状が好ま
しい。両端の吐出孔２間の距離Ｗは、成形金型内に液状
成形材料が均一に配分され、発泡成形体の側面意匠部の
エア欠けが発生するのを抑制する観点及びノズル部１の
内部に液状成形材料が十分に充填されるようにする観点
から、３０〜１００ｍｍであることが好ましく、４０〜
６０ｍｍであることがより好ましい。The shape of the nozzle portion 1 is not particularly limited, but is preferably a shape in which the liquid molding material supplied from the liquid molding material supply hole 3 is uniformly filled in the nozzle portion 1. The distance W between the discharge holes 2 at both ends is determined from the viewpoint that the liquid molding material is uniformly distributed in the molding die, and that the occurrence of air chipping in the side surface design portion of the foamed molded product is suppressed. From the viewpoint of sufficiently filling the liquid molding material, the thickness is preferably 30 to 100 mm, and 40 to 100 mm.
More preferably, it is 60 mm.
【００１０】各吐出孔２の孔径は、ノズル部１の内部の
洗浄性の観点から、１ｍｍ以上、好ましくは２ｍｍ以上
とされ、また液状成形材料の吐出性及びノズル部１の内
部における液状成形材料の充填性の観点から、８ｍｍ以
下、好ましくは６ｍｍ以下とされる。なお、各吐出孔２
の孔径は、それぞれ同一であってもよく、異なっていて
もよい。The diameter of each discharge hole 2 is set to 1 mm or more, preferably 2 mm or more from the viewpoint of cleanability of the inside of the nozzle portion 1. In view of the filling property, the thickness is 8 mm or less, preferably 6 mm or less. Each discharge hole 2
May be the same or different.
【００１１】各吐出孔２の上端と下端との間の距離（以
下、吐出孔の上下端距離Ｌという）は、特に限定がない
が、ノズル部１の内部の洗浄性の観点から、１０ｍｍ以
下であることが好ましく、５ｍｍ以下であることがより
好ましい。The distance between the upper end and the lower end of each discharge hole 2 (hereinafter referred to as the upper and lower end distance L of the discharge hole) is not particularly limited, but is not more than 10 mm from the viewpoint of cleaning the inside of the nozzle portion 1. And more preferably 5 mm or less.
【００１２】ノズル部１は、その内部の洗浄を容易にす
るために、分解可能であることが好ましい。It is preferable that the nozzle portion 1 can be disassembled in order to facilitate cleaning of the inside thereof.
【００１３】ノズル部１の材質は、所望の形状を有する
発泡成形体を製造することができればよく、その種類に
は特に限定がない。その材質の例としては、例えば、
鉄、ステンレス鋼、銅、アルミニウム、アルミニウム合
金などの金属、エポキシ樹脂、フェノール樹脂等の樹
脂、ゴム等が挙げられる。The material of the nozzle portion 1 is not particularly limited as long as a foamed molded article having a desired shape can be manufactured. As an example of the material, for example,
Examples include metals such as iron, stainless steel, copper, aluminum and aluminum alloys, resins such as epoxy resins and phenolic resins, and rubbers.
【００１４】本発明に用いられる成形型の材質には、特
に限定がない。その例としては、前記ノズル部１の材質
と同様のものが例示される。また、成形型の内面形状に
も特に限定がなく、目的とする成形体の形状に対応した
形状を有するのであればよく、任意である。なお、成形
型の内面には、離型性を向上させるために離型剤を予め
塗布、噴霧、浸漬等により、付着させておくことが好ま
しい。離型剤としては、ジメチルシリコーンオイル、鉱
物油、パラフィンワックス等が挙げられるが、本発明は
かかる例示のみに限定されるものではない。The material of the mold used in the present invention is not particularly limited. As an example, the same material as the material of the nozzle portion 1 is exemplified. Further, there is no particular limitation on the inner surface shape of the mold, and any shape may be used as long as it has a shape corresponding to the shape of the target molded body. It is preferable that a release agent is previously applied to the inner surface of the mold by applying, spraying, dipping, or the like in order to improve the releasability. Examples of the release agent include dimethyl silicone oil, mineral oil, paraffin wax and the like, but the present invention is not limited only to such examples.
【００１５】発泡成形体の液状成形材料としては、ポリ
ウレタン、エポキシ系樹脂、フェノール系樹脂、ポリエ
ステル系樹脂、尿素樹脂、ポリエチレンやポリプロピレ
ン等のオレフィン系樹脂、スチレン系樹脂等の樹脂；天
然ゴム、イソプレンゴム、クロロプレンゴム、スチレン
−ブタジエンゴム、ブタジエンゴム、アクリロニトリル
−ブタジエンゴム、エチレン−プロピレンゴム、ブチル
ゴム、アクリルゴム等のゴム等の液状成形材料が挙げら
れる。Examples of the liquid molding material for the foamed molded article include polyurethane, epoxy resin, phenolic resin, polyester resin, urea resin, olefin resin such as polyethylene and polypropylene, and resin such as styrene resin; natural rubber, isoprene. Liquid molding materials such as rubber, chloroprene rubber, styrene-butadiene rubber, butadiene rubber, acrylonitrile-butadiene rubber, ethylene-propylene rubber, butyl rubber, and acrylic rubber.
【００１６】液状成形材料は、成形の際に発泡し、発泡
成形体を与えるものであってもよい。発泡成形体を与え
る液状成形材料としては、自己発泡性を有するポリウレ
タン等をはじめ、オレフィン系樹脂、スチレン系樹脂等
が挙げられる。オレフィン系樹脂、スチレン系樹脂等を
用いる場合、これらの樹脂を予備発泡させた予備発泡粒
子を用いて発泡させる方法や、該樹脂に発泡剤を含浸さ
せた後、型内発泡成形させる方法等を採用できる。The liquid molding material may be a material which foams at the time of molding to give a foam molded article. Examples of the liquid molding material for providing the foam molded article include polyurethane having self-expanding property, olefin-based resin, styrene-based resin, and the like. When using an olefin-based resin, a styrene-based resin, or the like, a method of expanding the resin using pre-expanded particles obtained by pre-expanding the resin, a method of impregnating the resin with a foaming agent, and a method of performing in-mold foam molding, and the like. Can be adopted.
【００１７】本発明の製造法は、液状成形材料の中でも
特に成形時に表面性が悪化しやすいポリウレタンに対し
て優れた効果を発現する。ポリウレタンの代表例として
は、例えば、ポリエーテル系ポリウレタン、ポリエステ
ル系ポリウレタン等が挙げられる。The production method of the present invention exerts an excellent effect on polyurethane, whose surface properties tend to deteriorate during molding, among liquid molding materials. Representative examples of polyurethane include, for example, polyether-based polyurethane, polyester-based polyurethane, and the like.
【００１８】ポリウレタン原料としては、特に限定がな
く、公知のものを用いることができる。ポリウレタン原
料として、ポリオール溶液とイソシアネートプレポリマ
ーを用いることが好ましい。ポリオール溶液は、ポリエ
ーテルポリオール、ポリエステルポリオール等のポリオ
ール成分、鎖延長剤、水、整泡剤、及び必要に応じて触
媒等を含有する。イソシアネートプレポリマーは、ポリ
エーテルポリオール、ポリエステルポリオール等のポリ
オール成分と、メチレンジフェニルジイソシアネートや
その変性物等のポリイソシアネート成分とから得られ
る。これらポリエーテルポリオール、ポリエステルポリ
オール、鎖延長剤、整泡剤、触媒、ポリイソシアネート
成分、イソシアネートプレポリマー等は公知のものを用
いることができる。There is no particular limitation on the polyurethane raw material, and known polyurethane materials can be used. As a polyurethane raw material, it is preferable to use a polyol solution and an isocyanate prepolymer. The polyol solution contains polyol components such as polyether polyol and polyester polyol, a chain extender, water, a foam stabilizer, and, if necessary, a catalyst. The isocyanate prepolymer is obtained from a polyol component such as a polyether polyol and a polyester polyol, and a polyisocyanate component such as methylene diphenyl diisocyanate and a modified product thereof. Known polyether polyols, polyester polyols, chain extenders, foam stabilizers, catalysts, polyisocyanate components, isocyanate prepolymers and the like can be used.
【００１９】発泡成形体を製造する方法としては、発泡
機として、孔径１〜８ｍｍの吐出孔を３個以上有し、そ
の両端の吐出孔間距離Ｗが３０〜１００ｍｍであるノズ
ル部を有する発泡機を用いるほかは、従来と同様であれ
ばよい。なお、発泡機として、いわゆる注入型発泡機を
用いることができ、特に自動注入型発泡機を用いた場
合、エア欠け等の有害な欠陥等の発生の抑制に対して顕
著な効果が発現される。As a method for producing a foamed molded product, a foaming machine having a nozzle portion having three or more discharge holes with a hole diameter of 1 to 8 mm and a distance W between discharge holes at both ends of 30 to 100 mm is used as a foaming machine. Other than using a machine, it may be the same as the conventional one. In addition, what is called an injection-type foaming machine can be used as a foaming machine. In particular, when an automatic injection-type foaming machine is used, a remarkable effect is exerted on suppression of occurrence of harmful defects such as air chips. .
【００２０】かくして、成形した後、脱型することによ
り、所定形状を有する成形体が得られる。得られた成形
体は、複雑な形状を有する場合であっても、エア欠け等
の有害な欠陥等の発生が抑制されているので、表面性に
優れたものである。中でも、成形体がポリウレタンフォ
ームの成形体である場合には、前記効果がより一層優れ
る。特に、側面に複雑な形状を有する靴底用ポリウレタ
ンフォームにおいては、前記効果がより顕著に発現され
る。Thus, a molded article having a predetermined shape is obtained by removing the mold after molding. Even if the obtained molded article has a complicated shape, generation of harmful defects such as air chips is suppressed, and thus the molded article is excellent in surface properties. In particular, when the molded article is a molded article of a polyurethane foam, the above-mentioned effect is more excellent. In particular, in a polyurethane foam for shoe soles having a complicated shape on the side surface, the above effect is more remarkably exhibited.
【００２１】一般に、靴底は、サンダル、紳士靴等に使
用されるアウトソールと、スポーツシューズ等に使用さ
れるミッドソールに分類される。本発明による効果は、
特に低密度領域で用いられるミッドソールにおいて顕著
に発現される。Generally, shoe soles are classified into outsole used for sandals, men's shoes and the like, and midsole used for sports shoes and the like. The effect of the present invention is:
In particular, it is remarkably expressed in a midsole used in a low density region.
【００２２】ポリウレタンフォーム等の発泡成形体の密
度は、エア欠けを低減させる観点から０．１０ｇ／ｃｍ
3 以上、０．４５ｇ／ｃｍ3 未満が好ましく、０．１５
ｇ／ｃｍ3 以上、０．３０ｇ／ｃｍ3 未満がより好まし
く、０．２０ｇ／ｃｍ3 以上、０．３０ｇ／ｃｍ3 未満
が特に好ましい。The density of a foam molded article such as polyurethane foam is 0.10 g / cm from the viewpoint of reducing air chipping.
3 or more and less than 0.45 g / cm 3 , preferably 0.15
g / cm 3 or more and less than 0.30 g / cm 3 are more preferable, and 0.20 g / cm 3 or more and less than 0.30 g / cm 3 are particularly preferable.
【００２３】[0023]
【実施例】実施例１〜２４及び比較例１〜２ 試験用成形型〔側面意匠として深さ約３ｍｍの波状の意
匠を有し、長さ３０ｃｍ、最大幅１０ｃｍ、最小幅６ｃ
ｍ、踵部の高さ４ｃｍのミッドソールに対応した内面形
状を有する成形用金型、材質：鉄〕の温度を６０±２℃
に調節し、その内面に離型剤〔花王（株）製、商品名：
プラパワー２０６０〕を噴霧し、ウエスで拭き取った。Examples 1 to 24 and Comparative Examples 1 and 2 Molds for testing [having a wavy design with a depth of about 3 mm as a side design, length 30 cm, maximum width 10 cm, minimum width 6 c
m, molding die having an inner surface shape corresponding to a midsole with a heel height of 4 cm, material: iron] at a temperature of 60 ± 2 ° C.
And a release agent [Kao Co., Ltd., trade name:
Plastic power 2060] was sprayed and wiped off with a rag.
【００２４】吐出部の形状は、各実施例においては、図
１に示されるようなＴ字型のものを使用した。実施例１
〜２２においては、各吐出孔（孔径及び両端の吐出孔間
距離Ｗは表１に掲載）が直線状に等間隔で配設されたも
のを使用した。また、実施例２３〜２４においては、孔
径３ｍｍ（実施例２３）又は孔径４ｍｍ（実施例２４）
の吐出孔を中心とし、その中心から半径２０ｍｍの位置
に円弧を描くように等間隔で前記吐出孔と同じ形状の吐
出孔６個が配設されているものを使用した。In each of the embodiments, a T-shaped discharge portion as shown in FIG. 1 was used. Example 1
In Nos. To 22, the discharge holes (the hole diameter and the distance W between the discharge holes at both ends are listed in Table 1) are arranged linearly at equal intervals. In Examples 23 and 24, the hole diameter was 3 mm (Example 23) or the hole diameter was 4 mm (Example 24).
In this example, six discharge holes having the same shape as the above-mentioned discharge holes were arranged at equal intervals so as to draw an arc at a position having a radius of 20 mm from the center.
【００２５】次に、イソシアネートプレポリマー〔花王
（株）製、商品名：エディフォームＢ−３３２１〕を注
入型低圧発泡機の一方のタンクに入れ、その液温を３５
℃に調整し、ポリオール配合液〔花王（株）製、商品
名：エディフォームＡＳ−６−５２Ｕ〕１００重量部、
触媒〔花王（株）製、商品名：エディフォームＡＳ−６
５１−６０Ｃ〕１．３重量部、架橋剤〔花王（株）製、
商品名：エディフォームＡＳ−６０Ｅ〕２重量部及び整
泡剤〔花王（株）製、商品名：エディフォームＡＳ−１
１Ｓ〕０．５重量部を混合した混合液を他方のタンクに
入れ、その液温を４０℃に調整した。Next, an isocyanate prepolymer (manufactured by Kao Corporation, trade name: Ediform B-3321) was placed in one tank of an injection-type low-pressure foaming machine, and the liquid temperature was reduced to 35%.
° C, and 100 parts by weight of a polyol compounding liquid [manufactured by Kao Corporation, trade name: Ediform AS-6-52U],
Catalyst [Kao Co., Ltd., trade name: Eddy Form AS-6]
51-60C] 1.3 parts by weight, a crosslinking agent [manufactured by Kao Corporation,
Trade name: Ediform AS-60E] 2 parts by weight and foam stabilizer [manufactured by Kao Corporation, trade name: Ediform AS-1]
1S] A mixed solution obtained by mixing 0.5 parts by weight was placed in the other tank, and the temperature of the solution was adjusted to 40 ° C.
【００２６】この低圧発泡機を用いてイソシアネートプ
レポリマーと混合液とをイソシアネートインデックスが
１００となるように混合攪拌し、前記成形型内に踵から
爪先に向かって直線的に注入し、発泡させ、注入から５
分間経過後に脱型し、ポリウレタンフォーム成形体１０
個を得た。得られた成形体は、いずれも、密度約０．２
８ｇ／ｃｍ3 、Ｃ硬度６０±２を有していた。Using this low-pressure foaming machine, the isocyanate prepolymer and the mixed solution are mixed and stirred so that the isocyanate index becomes 100, and are linearly poured into the mold from the heel to the toe to foam. 5 from injection
After a lapse of minutes, the polyurethane foam molded article 10 is released.
Got a piece. Each of the obtained molded articles had a density of about 0.2.
8 g / cm 3 and C hardness 60 ± 2.
【００２７】実施例２５ 実施例１〜２４で使用したのと同じ試験用成形型を使用
し、その金型の温度を６０±２℃に調節し、その内面に
離型剤〔花王（株）製、商品名：プラパワー２０６０〕
を噴霧し、ウエスで拭き取った。Example 25 The same test mold as that used in Examples 1 to 24 was used, the temperature of the mold was adjusted to 60 ± 2 ° C., and a release agent [Kao Corp. Manufacture, trade name: Plapower 2060]
Was sprayed and wiped off with a rag.
【００２８】実施例２５においては、吐出部として、図
１に示されるようなＴ字型のものを使用し、各吐出孔
（孔径及び両端の吐出孔間距離Ｗは表１に掲載）が直線
状に等間隔で配設されたものを使用した。In Example 25, a T-shaped discharge portion as shown in FIG. 1 was used as the discharge portion, and each discharge hole (the hole diameter and the distance W between the discharge holes at both ends are listed in Table 1) is a straight line. The ones arranged at equal intervals in a shape were used.
【００２９】次に、イソシアネートプレポリマー〔花王
（株）製、商品名：エディフォームＢ−３０２１〕を注
入型低圧発泡機の一方のタンクに入れ、その液温を３５
℃に調整し、ポリオール配合液〔花王（株）製、商品
名：エディフォームＡＳ−６−３５Ｆ〕１００重量部、
触媒〔花王（株）製、商品名：エディフォームＡＳ−６
５１−６０Ｃ〕０．９重量部及び架橋剤〔花王（株）
製、商品名：エディフォームＡＳ−６０Ｅ〕２重量部を
混合した混合液を他方のタンクに入れ、その液温を４０
℃に調整した。Next, an isocyanate prepolymer (manufactured by Kao Corporation, trade name: Eddy Form B-3021) was placed in one tank of an injection-type low-pressure foaming machine, and the liquid temperature was reduced to 35.
° C, and 100 parts by weight of a polyol compounding liquid [manufactured by Kao Corporation, trade name: Ediform AS-6-35F],
Catalyst [Kao Co., Ltd., trade name: Eddy Form AS-6]
51-60C] 0.9 parts by weight and a crosslinking agent [Kao Corporation]
And trade name: Eddy Form AS-60E], and put a mixed solution obtained by mixing 2 parts by weight into the other tank, and adjust the liquid temperature to 40.
Adjusted to ° C.
【００３０】この低圧発泡機を用いてイソシアネートプ
レポリマーと混合液とをイソシアネートインデックスが
１００となるように混合攪拌し、前記成形型内に踵から
爪先に向かって直線的に注入し、発泡させ、注入から５
分間経過後に脱型し、ポリウレタンフォーム成形体１０
個を得た。得られた成形体は、いずれも、密度約０．３
５ｇ／ｃｍ3 、Ｃ硬度６０±２を有していた。Using this low-pressure foaming machine, the isocyanate prepolymer and the mixed solution are mixed and stirred so that the isocyanate index becomes 100, and are linearly poured into the mold from the heel to the toe to foam. 5 from injection
After a lapse of minutes, the polyurethane foam molded article 10 is released.
Got a piece. Each of the obtained molded articles had a density of about 0.3.
It had a hardness of 5 g / cm 3 and a C hardness of 60 ± 2.
【００３１】次に、各実施例又は各比較例で得られたポ
リウレタンフォーム成形体１０個の物性を以下の方法に
従って調べた。その結果を表１に示す。Next, the physical properties of the ten polyurethane foam molded articles obtained in each of the examples and comparative examples were examined according to the following methods. Table 1 shows the results.
【００３２】〔エア欠け及びボイド〕成形体の側面意匠
の成形時の突起部分にエア欠け又は成形体内部にボイド
があるかどうかを観察し、以下の判定基準に基づいて判
断した。[Air Chipping and Voids] It was observed whether there was air chipping or a void inside the molded body at the time of molding the side surface design of the molded body, and judgment was made based on the following criteria.
【００３３】〔判断基準〕 ○：エア欠け又はボイドの発生が２個以下 △：エア欠け又はボイドの発生が３〜５個 ×：エア欠け又はボイドの発生が６〜１０個[Judgment Criteria] ：: Two or less air chips or voids are generated Δ: 3 to 5 air chips or voids are generated ×: 6 to 10 air chips or voids are generated
【００３４】[0034]
【表１】 [Table 1]
【００３５】表１に示された結果から、実施例１〜２５
で得られたポリウレタンフォーム成形体は、いずれも、
エア欠け又はボイドの発生がほとんどないものであるこ
とがわかる。From the results shown in Table 1, Examples 1 to 25 were obtained.
Any of the polyurethane foam molded bodies obtained in
It can be seen that there is almost no air chipping or void generation.
【００３６】[0036]
【発明の効果】本発明の製造法によれば、成形時にボイ
ドやエア欠け等の成形体の表面性を低下させる欠陥や、
充填不足を生じがたい発泡成形体を製造しうるという効
果が奏される。According to the production method of the present invention, defects such as voids and air chips at the time of molding, which lower the surface properties of the molded article,
The effect is obtained that a foam molded article that is unlikely to be insufficiently filled can be manufactured.
【図１】図１は、本発明に用いられる発泡機の吐出部の
概略説明図である。FIG. 1 is a schematic explanatory view of a discharge section of a foaming machine used in the present invention.
１ ノズル部 ２ 吐出孔 ３ 液状成形材料供給孔 Ｗ 両端の吐出孔間距離Ｗ Ｌ 吐出孔の上下端距離 DESCRIPTION OF SYMBOLS 1 Nozzle part 2 Discharge hole 3 Liquid forming material supply hole W Distance between discharge holes at both ends W L Distance between upper and lower ends of discharge hole
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０８Ｇ 101:00） Ｂ２９Ｋ 75:00 Ｂ２９Ｌ 31:50 (72)発明者 竹村 一成 和歌山市湊1334番地 花王株式会社研究所 内 (72)発明者 澤井 実 和歌山市湊1334番地 花王株式会社研究所 内 (72)発明者 木内 一彦 和歌山市湊1334番地 花王株式会社研究所 内 Ｆターム(参考） 4F050 AA01 AA06 BA03 BA43 HA56 HA73 HA82 KA11 KA18 LA01 LA02 NA52 NA57 4F204 AA42 AG20 AH67 AM32 EA01 EB01 EF27 EK23 EL04 4J034 BA03 CE01 DA01 DB03 DC50 DF01 DG00 HA01 HA07 HA11 HC12 HC67 HC71 JA42 KA01 KB02 NA03 NA05 PA05 QB19 RA03 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification FI FI Theme Court ゛ (Reference) C08G 101: 00) B29K 75:00 B29L 31:50 (72) Inventor Kazunari Takemura 1334 Minato, Wakayama Kao Inside the Research Laboratory Co., Ltd. (72) Minoru Sawai, 1334 Minato, Wakayama City Inside the Kao Research Laboratories (72) Inventor Kazuhiko Kiuchi, 1334 Minato, Wakayama City, Kao Corporation F-term (reference) 4F050 AA01 AA06 BA03 BA43 HA56 HA73 HA82 KA11 KA18 LA01 LA02 NA52 NA57 4F204 AA42 AG20 AH67 AM32 EA01 EB01 EF27 EK23 EL04 4J034 BA03 CE01 DA01 DB03 DC50 DF01 DG00 HA01 HA07 HA11 HC12 HC67 HC71 JA42 KA01 KB02 NA03 NA05 PA05 QB19
Claims (3)
し、その両端の吐出孔間距離Ｗが３０〜１００ｍｍであ
るノズル部を有する発泡機を用いて成形する発泡成形体
の製造法。1. A method for producing a foamed molded article which is formed using a foaming machine having three or more discharge holes having a hole diameter of 1 to 8 mm and a distance W between discharge holes at both ends of 30 to 100 mm. .
る請求項１記載の製造法。2. The method according to claim 1, wherein the foamed molded article is a polyurethane foam.
１５ｇ／ｃｍ3 以上、０．４５ｇ／ｃｍ3 未満である請
求項２記載の製造法。3. The polyurethane foam having a molding density of 0.
15 g / cm 3 or more, process according to claim 2, wherein less than 0.45 g / cm 3.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16645799A JP3467211B2 (en) | 1999-06-14 | 1999-06-14 | Manufacturing method of midsole of sole |
| IDP20000473D ID26192A (en) | 1999-06-14 | 2000-06-06 | PROCESSES FOR MAKING IT UP |
| KR1020000032408A KR100638538B1 (en) | 1999-06-14 | 2000-06-13 | Process for producing foamed article |
| CNB001186310A CN1199774C (en) | 1999-06-14 | 2000-06-14 | Method for producing foam products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16645799A JP3467211B2 (en) | 1999-06-14 | 1999-06-14 | Manufacturing method of midsole of sole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000351128A true JP2000351128A (en) | 2000-12-19 |
| JP3467211B2 JP3467211B2 (en) | 2003-11-17 |
Family
ID=15831766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16645799A Expired - Fee Related JP3467211B2 (en) | 1999-06-14 | 1999-06-14 | Manufacturing method of midsole of sole |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3467211B2 (en) |
| KR (1) | KR100638538B1 (en) |
| CN (1) | CN1199774C (en) |
| ID (1) | ID26192A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010519396A (en) * | 2007-02-28 | 2010-06-03 | ビーエーエスエフ ソシエタス・ヨーロピア | Process for producing composites based on isocyanate-based foams |
| WO2020202404A1 (en) * | 2019-03-29 | 2020-10-08 | 株式会社アシックス | Sole, shoes, sole manufacturing method, and sole twist control system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101578059B1 (en) * | 2014-01-03 | 2015-12-17 | 경기대학교 산학협력단 | Foamed hard polyurethane foam based on phenolic resin without using acid hardener and method for producing it |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5399371A (en) * | 1977-02-10 | 1978-08-30 | Shinpei Miyaji | Production of chlorella granule containing lactic acid |
| JPS5830370B2 (en) * | 1978-10-20 | 1983-06-29 | ワイケイケイ株式会社 | Billet conveying device at the entrance and exit of a heat treatment furnace |
| JPS56163513U (en) * | 1980-05-08 | 1981-12-04 | ||
| JPS56163513A (en) * | 1980-05-23 | 1981-12-16 | Pioneer Electronic Corp | Magnetic head |
| JPH06328471A (en) * | 1993-05-18 | 1994-11-29 | Inoac Corp | Manufacture of foamed molded piece |
| JPH07195405A (en) * | 1993-12-28 | 1995-08-01 | Chemitec Kk | Nozzle for foam having excellent foaming capacity |
-
1999
- 1999-06-14 JP JP16645799A patent/JP3467211B2/en not_active Expired - Fee Related
-
2000
- 2000-06-06 ID IDP20000473D patent/ID26192A/en unknown
- 2000-06-13 KR KR1020000032408A patent/KR100638538B1/en not_active IP Right Cessation
- 2000-06-14 CN CNB001186310A patent/CN1199774C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010519396A (en) * | 2007-02-28 | 2010-06-03 | ビーエーエスエフ ソシエタス・ヨーロピア | Process for producing composites based on isocyanate-based foams |
| WO2020202404A1 (en) * | 2019-03-29 | 2020-10-08 | 株式会社アシックス | Sole, shoes, sole manufacturing method, and sole twist control system |
| JP7397855B2 (en) | 2019-03-29 | 2023-12-13 | 株式会社アシックス | Sole torsion control system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100638538B1 (en) | 2006-10-25 |
| ID26192A (en) | 2000-12-07 |
| JP3467211B2 (en) | 2003-11-17 |
| KR20010049539A (en) | 2001-06-15 |
| CN1199774C (en) | 2005-05-04 |
| CN1277098A (en) | 2000-12-20 |
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