JPH0386102A - Injection molding shoe provided with lining material having resin formed body layer and its manufacture - Google Patents
Injection molding shoe provided with lining material having resin formed body layer and its manufactureInfo
- Publication number
- JPH0386102A JPH0386102A JP1226905A JP22690589A JPH0386102A JP H0386102 A JPH0386102 A JP H0386102A JP 1226905 A JP1226905 A JP 1226905A JP 22690589 A JP22690589 A JP 22690589A JP H0386102 A JPH0386102 A JP H0386102A
- Authority
- JP
- Japan
- Prior art keywords
- fabric
- injection molded
- injection molding
- barrier means
- backing material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 78
- 229920005989 resin Polymers 0.000 title claims abstract description 44
- 239000011347 resin Substances 0.000 title claims abstract description 44
- 238000001746 injection moulding Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000004744 fabric Substances 0.000 claims abstract description 61
- 230000004888 barrier function Effects 0.000 claims abstract description 31
- 239000012778 molding material Substances 0.000 claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000006260 foam Substances 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 9
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 8
- 239000002759 woven fabric Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 abstract description 8
- 239000011496 polyurethane foam Substances 0.000 abstract description 8
- 238000009958 sewing Methods 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 4
- 229920005749 polyurethane resin Polymers 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 230000008034 disappearance Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 43
- 230000001070 adhesive effect Effects 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 238000003475 lamination Methods 0.000 description 5
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- 238000010030 laminating Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241000511979 Plumeria Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、樹脂発泡体層を含むシート材で構成された裏
材を有する射出成形靴とその製造法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an injection molded shoe having a backing made of a sheet material including a resin foam layer, and a method for manufacturing the same.
（従来の技術）
従来、射出成形法を用いて製造した靴、特に長靴にあっ
ては、その履いた足に面する側にメリヤス布等を裁断縫
製して靴下状に構成した裏材を用いるのが一般であった
。(Prior art) Conventionally, shoes manufactured using injection molding, especially boots, have a sock-shaped lining made of knitted cloth or the like cut and sewn on the side facing the foot worn. It was common.
しかし、冬季等のシーズン、あるいは、食堂等の調理場
等、床面に水気の多い場所でそのような靴を履いた場合
は、この程度の裏材によって履いた足を保護するだけで
は、足が冷たく感じるため、余分に靴下を重ね履きする
等して冷気から足を守らねばならない不都合°があった
。However, if you wear such shoes during the winter season or in places with a lot of moisture on the floor, such as in the kitchen of a restaurant, it is not enough to protect your feet with this level of lining material. Since the feet feel cold, there is the inconvenience of having to protect your feet from the cold air by wearing extra layers of socks.
このための改良として、裏材として、メリヤス布とポリ
ウレタンフォームからなるシートとをラミネートしてな
る基材を靴下状に裁断縫製したものを用いて射出成形し
て靴を製造する方法が考えられた。As an improvement for this purpose, a method was devised in which shoes were manufactured by injection molding using a backing material made by laminating a stockinette cloth and a sheet made of polyurethane foam, cut and sewn into a sock shape. .
（発明が解決しようとする課題）
しかしながら、前記の改良された靴の製造法によると、
裏材を構成する材料として、ポリウレタンフォームシー
トを含むから、メリヤス布１枚からなる裏材を用いたも
のより、足の保温性に富むものであったが、射出成形時
に、ポリウレタンフォームシートが溶融した射出成形材
料に直接に接触しその熱により溶融し、または変質し、
更に射出圧による力が同時に加わるので、その気泡が潰
れたり、消失したりし、あるいは、特にウレタンフオー
ムが連通気泡であるため、溶融した成形材料が、その気
泡中に深く浸透する等して、実質的に断熱性能に寄与す
る気泡が滅失するため、その靴の保温性を期待通りに得
にくいという欠点を有するものであった。(Problems to be Solved by the Invention) However, according to the improved shoe manufacturing method described above,
Since the backing material includes a polyurethane foam sheet, it has better foot insulation than a backing material made of a single piece of stockinette cloth, but the polyurethane foam sheet melts during injection molding. If the product comes into direct contact with the injection molding material, it will melt or change in quality due to the heat.
Furthermore, since the force due to the injection pressure is applied at the same time, the bubbles may collapse or disappear, or, especially since urethane foam is open-celled, the molten molding material may deeply penetrate into the bubbles. Since the air bubbles that substantially contribute to the heat insulation performance are lost, the shoe has the disadvantage that it is difficult to obtain the desired heat retention properties.
泡体層の気泡の滅失のない射出成形靴とその製造方法を
提供することにある。To provide an injection molded shoe in which bubbles in a foam layer are not lost and a method for manufacturing the same.
（課題を解決するための手段）
上記目的を達成するため、本発明による樹脂発泡体層を
有する裏材を設けた射出成形靴においては、樹脂発泡体
層を含むシート材でラストモールドの外面形状にＩ威さ
れた裏材と該裏材の外周面に一体に射出成形されて接合
した靴主体とからなり、該裏材の樹脂発泡体層における
該靴主体に臨む側の面に射出成形材料を遮断するバリヤ
ー手段が施されたものである。(Means for Solving the Problems) In order to achieve the above object, in injection molded shoes provided with a backing material having a resin foam layer according to the present invention, the outer surface shape of the last mold is made of a sheet material including a resin foam layer. The resin foam layer of the lining material is made of a lining material and a shoe main body integrally injection-molded and bonded to the outer peripheral surface of the lining material, and an injection molding material is applied to the surface of the resin foam layer of the lining material on the side facing the shoe main body. It is equipped with a barrier means to block the
更に、上記目的を達成するため、本発明による射出成形
靴の製造法においては、射出された射出成形材料を遮断
するバリヤー手段を片面に施した樹脂発泡体層を含むシ
ート材でラストモールドの外面形状に沿う形状の裏材を
構成し、この裏材における樹脂発泡体層のバリヤー手段
を施した面がそれの反対面に対し表側となるように該裏
材をラストモールドに吊り込み、このラストモールドと
その他の底形用モールドとを組み合わせて該裏材の外周
面に臨む成形空隙を構成し、該成形空隙に射出成形材料
を射出充填することにより、該裏布と一体に接合した靴
主体を射出成形するものである。Furthermore, in order to achieve the above object, in the method for manufacturing injection molded shoes according to the present invention, the outer surface of the last mold is coated with a sheet material containing a resin foam layer on one side of which is provided with a barrier means for blocking the injected injection molding material. A backing material having a shape that follows the shape is constructed, and the backing material is suspended in a last mold so that the surface of the backing material on which the barrier means of the resin foam layer is applied is the front side of the opposite surface. The mold and other sole-shaped molds are combined to form a molding gap facing the outer peripheral surface of the lining material, and the molding gap is injected and filled with an injection molding material to form a shoe body integrally joined to the lining fabric. It is injection molded.
本発明において、射出成形材料は、ポリ塩化る
ビニル樹脂、ＥＶＡ、オレフィン系ポリマーポリウレタ
ン樹脂、ポリアミド樹脂、ポリエステル樹脂、スチレン
−イソプレン−スチレンブロックコーポリマー、季チレ
ンーブタジエンースチレンブロックコーボリマー等の常
用されるエラストマー、熱可塑性ゴム等が使用できる。In the present invention, injection molding materials include commonly used polychlorinated vinyl resins, EVA, olefin polymer polyurethane resins, polyamide resins, polyester resins, styrene-isoprene-styrene block copolymers, styrene-butadiene-styrene block copolymers, etc. elastomers, thermoplastic rubbers, etc. can be used.
裏材を構成する樹脂発泡体層としては、ブロック状に発
泡させた連通気泡性の軟質ポリウレタンフォームを薄く
スライスしたシートを用いるのが好適であり、その他の
例として、ＰｖＣフオームやＥＶＡフオーム等のシート
を使用でき、ＰｖＣフオームやＥＶＡフオームは、架橋
したものであると、機械的強度や耐熱性に優れるので、
より好ましい。この樹脂発泡体層の厚みとしては、１．
０會園〜１０．０畿會、好ましくは２．０〜５．０關で
ある。As the resin foam layer constituting the backing material, it is preferable to use a sheet made by thinly slicing open-cell flexible polyurethane foam foamed into blocks.Other examples include PvC foam, EVA foam, etc. PvC foam and EVA foam have excellent mechanical strength and heat resistance when cross-linked.
More preferred. The thickness of this resin foam layer is 1.
0 to 10.0 degrees, preferably 2.0 to 5.0 degrees.
この樹脂発泡体層の片面に設けられるバリャ−手段は、
次のような種々のしかたで施される。The barrier means provided on one side of this resin foam layer is
This can be done in a variety of ways, including:
例えば、樹脂発泡体層を構成する発泡体シート上に、ポ
リウレタン系、ＥＶＡ系、オレフィン系、ポリエステル
系、ポリアミド系等の合成樹脂層を積層する方法である
。この積層は、それらの合成樹脂をあらかじめカレンダ
ー法、押し出・′し法、キャスティング法等でフィルム
として成゛＼５形したものを、接着剤を用いて発泡体シ
ートとラミネートしてもよい、また、あるいは、それら
の合成樹脂をスプレー法、グラビア法、コーティング法
等により、発泡体シート上に層状に直接積層するか、キ
ャスティングフィルムおよびシートを用いて転写法、（
ドライラミネート法、ウェットラミネート法）により積
層してもよい、この場合、コーティングされたそれらの
合成樹脂は、コーティング時にそれ自体接着性を有する
ので、その上に更に編布や織布、不織布、等の布地（好
ましくは伸縮性を有する布地〉をラミネートしてもよい
、勿論、前記のようにそのような合成樹脂をフィルムに
成形した上で発泡体シート上に接着剤によりラミネート
した場合にあっても、そのフィルムの上に更に上述のよ
うな編布又は織布等の布地（好ましくは伸縮性のある布
地）を接着剤に等によりラミネートしてもよい、このよ
うに、バリヤー手段の上に更に布地を積層すると、こう
してなるシート材で裏材を構成し、これを足の形をした
ラストモールドに吊り込んでも、樹脂発泡体層がその布
地により被覆されているので、樹脂発泡体層の損傷が防
止され、また、手作業による吊り込み作業もし易く、更
に、裏材としてラストモールドの外面形状に縫製等の方
法で構成する際も作業が容易となる。For example, there is a method in which a synthetic resin layer of polyurethane, EVA, olefin, polyester, polyamide, or the like is laminated on a foam sheet constituting the resin foam layer. This lamination may be performed by forming the synthetic resin into a film in advance by a calendering method, an extrusion method, a casting method, etc., and then laminating it with a foam sheet using an adhesive. Alternatively, these synthetic resins can be directly laminated in layers on a foam sheet by a spray method, a gravure method, a coating method, etc., or by a transfer method using a casting film and sheet.
In this case, the coated synthetic resin itself has adhesive properties at the time of coating, so knitted fabrics, woven fabrics, non-woven fabrics, etc. It is also possible to laminate a fabric (preferably a stretchable fabric). Of course, in the case where such a synthetic resin is formed into a film and then laminated onto a foam sheet with an adhesive as described above, A fabric (preferably a stretchable fabric) such as a knitted or woven fabric as described above may also be laminated onto the film, such as by adhesive, in this way. When fabric is further laminated, the sheet material formed in this way forms the backing material, and even if this is hung into a foot-shaped last mold, the resin foam layer is covered with the fabric, so the resin foam layer is covered with the fabric. Damage is prevented, and it is easy to carry out manual hanging work, and furthermore, work is also facilitated when forming the outer surface shape of the last mold as a backing material by sewing or other methods.
上述した合成樹脂のフィルムやコーティング層からなる
バリヤー手段としての合成樹脂層は、その厚みとしては
、バリヤーとしての射出成形材料の遮断性能があり、か
つ、これを含むシート材を裏材として縫製手段等により
構成するときの作業のし易さや、この裏材をラストモー
ルドに吊り込む作業上の扱い易さ等を考慮して、２０〜
５００ミクロンが好適であり、一般には、３０〜１５０
ミクロンがより好適である。The synthetic resin layer as a barrier means consisting of the above-mentioned synthetic resin film or coating layer has a thickness sufficient to block the injection molding material as a barrier, and the sheet material containing this can be used as a backing material for sewing means. 20~
500 microns is preferred, typically 30-150 microns.
Microns are more preferred.
更に、バリヤー手段として布地を用いることもでき、こ
の場合は、その布地としては、射出成形された射出成形
材料の透過にくい程度の気孔容積の小さいものを用いる
。Furthermore, a fabric may be used as the barrier means, in which case the fabric has a small pore volume that is difficult for the injection molding material to pass through.
ここで気孔容積とは、次式で与えられる基布Ｗ：基布の
１ ｍ”当たりの重量（ｇ／ｒｎ”）Ｔ：基布の厚さ（
關）
Ｓ：基布繊維の真比重
本発明者は、鋭意検討の結果、本発明においてバリヤー
手段として用いられる布地の気孔容積は、この布地をバ
リヤー手段として用いた裏材をラストモールドに吊り込
んだとき、７０％以下、好ましくは５０％以下である布
地が好ましい、しかしながら、この布地に射出成形材料
を接合するためには、気孔容積の下限として、２０％以
上、好ましくは３５％以上の気孔容積の布地を用いる必
要がある。Here, the pore volume is given by the following formula: Base fabric W: Weight per 1 m'' of base fabric (g/rn'') T: Thickness of base fabric (
S: true specific gravity of the base fabric fibers The present inventor has determined, as a result of intensive studies, that the pore volume of the fabric used as a barrier means in the present invention is determined by suspending the backing material using this fabric as a barrier means into a last mold. In this case, a fabric with a pore volume of 70% or less, preferably 50% or less is preferable. However, in order to bond an injection molding material to this fabric, the pore volume must be 20% or more, preferably 35% or more as a lower limit. It is necessary to use voluminous fabric.
但し、この布地面に射出成形材料との接着を助長する裏
面処理剤を処理するようにすれば、バリヤー手段として
の布地と成形材料との接合を好適とすることができる。However, if the surface of the fabric is treated with a backside treatment agent that promotes adhesion to the injection molding material, it is possible to suitably bond the fabric and the molding material as a barrier means.
このバリヤー手段としての布地は、綿、レーヨン、ポリ
エステル、ナイロン（ポリアミド〉、アクリル等の繊維
を単独又は２種類以上使用した織布、編布、あるいは不
織布等が利用できる。The fabric used as the barrier means may be a woven fabric, a knitted fabric, or a nonwoven fabric using one or more types of fibers such as cotton, rayon, polyester, nylon (polyamide), and acrylic.
この編布としては、２重編みのいわゆるダブルトリコッ
トと呼ばれる編布を用いることもできる。As this knitted fabric, a double knitted fabric called double tricot can also be used.
これらの布地を樹脂発泡体のシートに積層する方法とし
ては、フレームラミネート法や接着剤による接合等適宜
方法を選択できる。As a method for laminating these fabrics on a sheet of resin foam, an appropriate method such as a frame lamination method or bonding using an adhesive can be selected.
以上のようにバリヤー手段゛を施された樹脂発泡体層は
、その反対側の面、いいかえれば、この樹脂発泡体層を
含むシート材を裏材として楕成しこれをラストモールド
に吊り込んだときラストモールドに向う側となるべき面
に、メリヤス等の編布のような伸縮性のある布地を積層
してもよい。この場合の積層方法は、上述したフレーム
ラミネート法、接着剤による接合等適宜選択することが
できる。このように樹脂発泡体層のバリヤー手段を施さ
れた面と反対側の面に上記のような布地が積層されてい
ると、裏材として構成されたとき、その布地が足に接触
することとなるので、足が直接樹脂発泡体層に接触する
場合に比して、靴の保温性を良くし、また感触もよく、
樹脂発泡体層の保護をし、また汗等に対する衛生上も好
ましい、また、この布地は、この裏材をラストモールド
に吊り込む際、機械的強度の弱い樹脂発泡体層の損傷を
防止する保護被覆層となる。この布地が伸縮性を有すれ
ば、裏材の吊り込みを容易とする。The resin foam layer provided with the barrier means as described above was formed into an oval using the opposite side, or in other words, the sheet material containing this resin foam layer as a backing material, and this was suspended in the last mold. A stretchable fabric such as a knitted fabric such as stockinette may be laminated on the side facing the last mold. The lamination method in this case can be appropriately selected from the above-mentioned frame lamination method, bonding using an adhesive, etc. If the above-mentioned fabric is laminated on the opposite side of the resin foam layer to the side on which the barrier means is applied, the fabric may come into contact with the foot when configured as a backing material. This allows the shoes to retain heat better and feel better than when the foot comes into direct contact with the resin foam layer.
This fabric protects the resin foam layer and is also hygienic against sweat, etc. This fabric also protects the resin foam layer, which has weak mechanical strength, from being damaged when the backing material is suspended in the last mold. It becomes a covering layer. If this fabric has elasticity, it will be easier to hang the backing material.
以上のように樹脂発泡体層を含んで積層されたシート材
は、足の形状をなすラストモールドの複雑な外面形状に
沿うように、裁断後縫製され、靴下状に槽底される。あ
るいは、通常の短靴の甲皮として縫製等で槽底してもよ
い、また縫製以外に、例えば、熱融着、高周波融着等の
手段でシート材の裁断片を接合し、ラストモールドの外
面形状に構成してもよい。The sheet material laminated including the resin foam layer as described above is cut and sewn to follow the complicated outer shape of the last mold forming the shape of a foot, and is made into a sock-like bottom. Alternatively, the bottom of the bottom may be sewn as the upper of ordinary short shoes.In addition to sewing, for example, cut pieces of sheet material may be joined by means such as heat fusion or high frequency fusion, and the outer surface of the last mold It may be configured in any shape.
シート材をラストモールドの外面形状に構成する場合は
、そのシート材に含まれる樹脂発泡体層のバリヤー手段
を施した面に対し、その反対側の面が、ラストモールド
の外面に向く側、すなわち、裏材の内側へ向くように配
する。When the sheet material is configured to have the outer surface shape of the last mold, the surface opposite to the barrier means-applied surface of the resin foam layer included in the sheet material is the side facing the outer surface of the last mold, i.e. , so that it faces the inside of the backing material.
本発明においては、ラストモールドに吊り込んだ裏材の
外周面に臨む周囲に、サイドモールドやボトムモールド
等のその他の成形相モールドを組み合わせて成形空隙を
構成し、その空隙に射出成形材料を射出して該空隙を充
填し、裏材の外周面に一体に接合した靴主体を射出成形
する。このような成形相モールドは通常のものを使用で
きる。勿論、裏材に樹脂発泡層を含むので、その厚み分
だけ、成形空隙の厚みを増加しておくのが望ましい。In the present invention, a molding gap is formed by combining other molding phase molds such as side molds and bottom molds around the outer peripheral surface of the backing material suspended in the last mold, and the injection molding material is injected into the gap. Then, the void is filled, and the shoe main body integrally joined to the outer peripheral surface of the lining material is injection molded. A conventional mold can be used as such a molding phase mold. Of course, since the backing material includes a resin foam layer, it is desirable to increase the thickness of the molding gap by the thickness thereof.
（実施例〉
以下、本発明の詳細な説明する。これらの実施例は、本
発明を何ら制限するものではない。(Examples) The present invention will be described in detail below.These Examples are not intended to limit the present invention in any way.
［実施例１］
まず、第１図に示すラストモールド（１）の外面形状に
沿うことのできる裏打（２１を調製する。[Example 1] First, a backing (21) that can conform to the outer shape of the last mold (1) shown in FIG. 1 is prepared.
裏材（２は第２図に示すような断面構成でなり、この断
面に示される層状のシート材（Ｓ）を裁断し縫製して靴
下状に構成される。このシート材（Ｓ）は、ブロック状
に発泡成形された軟質ポリウレタンフォームを厚さ３．
０關にスライスして、シート材（Ｓ）の樹脂発泡体層（
３）を構成するための材料とし、このポリウレタンフォ
ームのラストモールド１１１に向くべき側の面に、スフ
メリヤス布からなる布地（４１をフレームラミネート法
により接合−本化してあり、その逆の面には、バリヤー
手段＋５１として、ポリウレタン樹脂層が厚み８０ミク
ロンでコーティングにより積層され、これに、スフメリ
ヤス布からなる布地（６）が接着−本化している。こう
してなる裏材１２１を第１図のようにラストモールド（
１）に吊り込み、これに、サイドモールド（７）、ボト
ムモールド（８）を組み合わせ、その裏材（２１の外周
面に臨む成形空隙（９）を槽底し、これに、ボトムモー
ルド（８）のランナー（１０）より射出成形材料（１１
）としてＰＶＣコンパウンドを射出充填し、靴主体（１
２〉を裏材（２１と一体に接合した状態で射出成形し、
本実雄側品を得た。The backing material (2 has a cross-sectional configuration as shown in FIG. 2, and the layered sheet material (S) shown in this cross section is cut and sewn into a sock shape. This sheet material (S) is A block of flexible polyurethane foam with a thickness of 3.
Slice into 0 pieces and remove the resin foam layer (S) of the sheet material (S).
3), on the side of this polyurethane foam that should face the last mold 111, a fabric (41) made of suffumel cloth is bonded by frame lamination method, and on the opposite side, As a barrier means +51, a polyurethane resin layer with a thickness of 80 microns is laminated by coating, and a fabric (6) made of plumeria cloth is adhered to this.The backing material 121 thus formed is shown in FIG. Last mold (
1), and combine this with a side mold (7) and a bottom mold (8). ) from the runner (10) of the injection molding material (11
) is injected and filled with PVC compound, and the main body of shoes (1
2> is injection molded with the backing material (21) integrally joined,
I got Honjio's side item.
こうして得た射出成形長靴は、射出成形材料（１１）が
バリヤー手段（四としてのポリウレタン樹脂層により組
まれて遮断されその溶融した成形材料（１１）がポリウ
レタンフォームからなる樹脂発泡体層（３）に及ぶこと
がないので、その気泡が滅失することがなかった。した
がって、その靴れが防止されるものであった。また、バ
リヤー手段＋５１の上に更に布地（６）をラミネートし
ているので、裏材（２の強度を上げるとともに、裏材（
２）をラストモールド（１）に吊り込む作業をし易くし
、能率向上を図ることができた。The injection molded boots thus obtained are constructed such that the injection molding material (11) is assembled and blocked by a polyurethane resin layer as a barrier means (4), and the molten molding material (11) forms a resin foam layer (3) made of polyurethane foam. The air bubbles did not disappear because the air bubbles did not spread to the surface of the shoes.Therefore, the blisters were prevented.Furthermore, since the fabric (6) was further laminated on the barrier means +51, the air bubbles did not disappear. , Increasing the strength of the backing material (2), as well as increasing the strength of the backing material (
2) was made easier to suspend into the last mold (1), improving efficiency.
［実施例２］
本実施例に用いる裏材（２）は、第３図に示す断面のシ
ート材（Ｓ）から、その裁断片を縫製して靴下状に構成
される。[Example 2] The backing material (2) used in this example is constructed in the shape of a sock by sewing cut pieces of a sheet material (S) with a cross section shown in FIG. 3.
このシート材（Ｓ）の樹脂発泡体層（３）と布地（４）
は実施例１と同様のものを用いる。Resin foam layer (3) and fabric (4) of this sheet material (S)
The same one as in Example 1 is used.
バリヤー手段＋５１としては、この樹脂発泡体層（３）
にポリウレタンエラストマーからなるフィルムを接着剤
により接着−本化したものである。As the barrier means +51, this resin foam layer (3)
A film made of polyurethane elastomer is bonded to the base using an adhesive.
この裏剤（２１を実施例１と同様にラストモールド＋１
１に吊り込み、該裏材（２）と接合−本化した靴主体（
１２）を射出成形し、本実雄側品を得た。This backing material (21) was molded with last mold + 1 in the same manner as in Example 1.
1 and bonded to the backing material (2) - the main body of the shoe (
12) was injection molded to obtain a genuine side product.
本実雄側品も実施例１と同様に樹脂発泡体層（３）の気
泡の滅失もなく、靴の保温性、通気性の優れるものであ
った。Similar to Example 1, the present product also had no loss of air bubbles in the resin foam layer (3), and the shoe had excellent heat retention and breathability.
［実施例３］
本実施例では、樹脂発泡体層（３）として架橋したＰｖ
Ｃフオーム（厚さ２．５ｍｍ）を用いこれにバリヤー手
段１５１として、ナイロン繊維からなる２重編みのいわ
ゆるダブルトリコット布を接着剤でラミネートしたもの
を用いた。この反対面には、スフメリヤス布の布地（４
）を接着剤でラミネートした。こうしてなるシート材（
Ｓ）を実施例１と同様に裁断縫製して裏材（２）を用意
し、同様にして、これに靴主体（１２）を射出成形し、
本実雄側品を得た。この裏材（２）に用いたシート材（
Ｓ）のバリヤー手段＋５１であるダブルトリコット布は
、この裏材（２１をラストモールド（１）に吊り込んだ
ときの気孔容積が３５〜４０％を示すものであった。[Example 3] In this example, crosslinked Pv was used as the resin foam layer (3).
A C foam (thickness: 2.5 mm) was used, and as a barrier means 151, a so-called double tricot cloth made of double knitted nylon fiber was laminated with an adhesive. On the other side of this, there is a piece of sufumellias fabric (4
) was laminated with adhesive. The resulting sheet material (
S) was cut and sewn in the same manner as in Example 1 to prepare the lining material (2), and in the same manner, the shoe main body (12) was injection molded thereon.
I got Honjio's side item. The sheet material used for this backing material (2) (
The double tricot cloth having a barrier means of S) +51 had a pore volume of 35 to 40% when the backing material (21) was suspended in the last mold (1).
本実雄側品は、前記実施例１，２の靴と同様に、成形樹
脂（１１）はバリヤー手段（四であるダブルトリコット
によって阻止され遮断され、樹脂実施体層（３）の気泡
の滅失もなく、靴は優れた保温性を有するものであった
。Similar to the shoes of Examples 1 and 2, the molded resin (11) is blocked and blocked by the double tricot barrier means (4), and the loss of air bubbles in the resin layer (3) is also prevented. However, the shoes had excellent heat retention.
尚、本実施例の場合、射出成形材料（１１）と接合すべ
き裏材（２）の最外層がラストモールド（１）に吊り込
み時気孔容積の小さな布地をバリヤー手段（句として用
いるが、その成形材料（ＩＩ）との接合をより協力にす
るために、この布地に成形材料（１１）と接着性のよい
表面処理剤をその表面にコーティングしたものを用いた
。そのため、裏材（■と成形された靴主体（１２）とは
強固に接合−体となっていた。In the case of this example, when the outermost layer of the backing material (2) to be bonded to the injection molding material (11) is suspended in the last mold (1), a fabric with a small pore volume is used as a barrier means (this is used as a phrase). In order to make the bonding with the molding material (II) more cooperative, this fabric was coated with a surface treatment agent having good adhesion to the molding material (11).Therefore, the backing material (■ and the molded shoe main body (12) were firmly joined together.
（発明の効果〉
以上述べたように、本発明においては、裏材を構成する
樹脂発泡体層の成形される靴主体に向く側の面にバリヤ
ー手段が施され、これによって、射出成形材料が阻止さ
れ、遮断されるので、その溶融した射出成形材料の熱と
射出圧の影響により樹脂発泡体層の気泡が溶融した射出
成形材料が樹脂発泡体層の気泡中に浸入してその気泡を
滅失したりしないので、その樹脂発泡体層の固有の断熱
性能は阻害されない。したがって、本発明によれば保温
性の優れた靴を提供することができる。(Effects of the Invention) As described above, in the present invention, a barrier means is provided on the side of the resin foam layer constituting the lining material facing the main body of the shoe to be molded, thereby allowing the injection molding material to As a result, the air bubbles in the resin foam layer penetrate into the air bubbles in the resin foam layer and disappear due to the heat and injection pressure of the molten injection molding material. Therefore, the inherent heat insulating performance of the resin foam layer is not impaired. Therefore, according to the present invention, shoes with excellent heat retention can be provided.
第１図は、本発明の実施例１における靴の製造状態を示
す断面説明図、第２図ないし第４図はそれぞれ実施例１
ないし実施例３における靴の要部の一部拡大断面図であ
る。
中
ラストモールド
裏材
樹脂発泡体層
布地
バリヤー手段
布地
サイドモールド
ボトムモールド
射出成形空隙
射出成形材料
靴主体
シート材FIG. 1 is a cross-sectional explanatory diagram showing the manufacturing state of shoes in Example 1 of the present invention, and FIGS. 2 to 4 are respectively Example 1.
3 is a partially enlarged cross-sectional view of a main part of a shoe in Example 3. FIG. Middle last mold backing material resin foam layer fabric barrier means fabric side mold bottom mold injection molding void injection molding material shoe main body sheet material
Claims (9)
外面形状に構成された裏材と該裏材の外周面に一体に射
出成形されて接合した靴主体とからなり、該裏材の樹脂
発泡体層における該靴主体に臨む側の面に射出成形材料
を遮断するバリヤー手段が施津されたことを特徴とする
樹脂発泡体層を有する裏材を設けた射出成形靴。(1) Consisting of a backing material made of a sheet material containing a resin foam layer and having the outer shape of a last mold, and a shoe main body integrally injection molded and bonded to the outer peripheral surface of the backing material, the backing material is made of resin. An injection molded shoe provided with a lining material having a resin foam layer, characterized in that a barrier means for blocking injection molding material is provided on the side of the foam layer facing the main body of the shoe.
を片面に施した樹脂発泡体層を含むシート材でラストモ
ールドの外面形状に沿う形状の裏材を構成し、この裏材
における樹脂発泡体層のバリヤー手段を施した面がそれ
の反対面に対し表側となるように該裏材をラストモール
ドに吊り込み、このラストモールドとその他の成形用モ
ールドとを組み合わせて該裏材の外周面に臨む成形空隙
を構成し、該成形空隙に射出成形材料を射出充填するこ
とにより、該裏布と一体に接合した靴主体を射出成形す
ることを特徴とする射出成形靴の製造法。(2) Construct a backing material shaped to follow the external shape of the last mold with a sheet material containing a resin foam layer on one side of which is provided with a barrier means for blocking the injected injection molding material, and the resin foam in this backing material The backing material is suspended in a last mold so that the side with the barrier means of the layer is the front side relative to the opposite side thereof, and this last mold and another mold are combined to form the outer peripheral surface of the backing material. A method for producing injection molded shoes, characterized in that a molding gap is formed facing the molding gap, and a shoe main body integrally joined with the lining fabric is injection molded by injecting and filling the molding gap with an injection molding material.
射出成形靴の製造法。(3) The method for manufacturing injection molded shoes according to claim 1, wherein the barrier means is a synthetic resin layer.
なる請求項３記載の射出成形靴の製造法。(4) The method for manufacturing injection molded shoes according to claim 3, wherein a fabric is layered on the side of the synthetic resin layer facing the main body of the shoe.
造法。(5) The method for manufacturing injection molded shoes according to claim 4, wherein the fabric is a knitted fabric.
造法。(6) The method for manufacturing injection molded shoes according to claim 4, wherein the fabric is a woven fabric.
製造法。(7) The method for manufacturing injection molded shoes according to claim 4, wherein the fabric is a nonwoven fabric.
しにくい程度の気孔容積の小さい布地である請求項２記
載の射出成形靴の製造法。(8) The method for manufacturing injection molded shoes according to claim 2, wherein the barrier means is a fabric with a small pore volume that makes it difficult for the injected injection molding material to pass through.
８記載の射出成形靴の製造法。(9) The method for manufacturing injection molded shoes according to claim 8, wherein the fabric with low porosity is a double knitted fabric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1226905A JP2545611B2 (en) | 1989-08-31 | 1989-08-31 | Injection-molded shoe provided with a backing having a resin foam layer and a method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1226905A JP2545611B2 (en) | 1989-08-31 | 1989-08-31 | Injection-molded shoe provided with a backing having a resin foam layer and a method for producing the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7354802A Division JP2898913B2 (en) | 1995-12-28 | 1995-12-28 | Injection-molded shoes provided with a backing having a resin foam layer and a method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386102A true JPH0386102A (en) | 1991-04-11 |
| JP2545611B2 JP2545611B2 (en) | 1996-10-23 |
Family
ID=16852437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1226905A Expired - Lifetime JP2545611B2 (en) | 1989-08-31 | 1989-08-31 | Injection-molded shoe provided with a backing having a resin foam layer and a method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545611B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH057501A (en) * | 1991-07-04 | 1993-01-19 | Honma Shoji Kk | Injection molding-made arctic boot and production thereof |
| US6986822B1 (en) * | 1999-01-11 | 2006-01-17 | Gottlieb Binder Gmbh & Co. | Method for producing a foam element, especially a foam padding element for a plane or vehicle seat |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180050106A (en) * | 2016-11-04 | 2018-05-14 | 동명대학교산학협력단 | Manufacturing method for hybrid medical shoe |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823493A (en) * | 1969-06-11 | 1974-07-16 | Freudenberg C | Foam polyurethane boot with lining |
| JPS5711602A (en) * | 1980-06-23 | 1982-01-21 | Hiroshima Kasei Ltd | Production of injection molded boots having bore lining cloth |
| JPS5922501A (en) * | 1982-07-28 | 1984-02-04 | アキレス株式会社 | Production of cold protecting injection molded boots |
| JPS61203902A (en) * | 1985-03-07 | 1986-09-09 | 株式会社アサヒコーポレーション | Injection molding of shoes |
| JPS62268502A (en) * | 1986-05-19 | 1987-11-21 | 株式会社 ミツウマ | Production of injection molding shoes |
-
1989
- 1989-08-31 JP JP1226905A patent/JP2545611B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823493A (en) * | 1969-06-11 | 1974-07-16 | Freudenberg C | Foam polyurethane boot with lining |
| JPS5711602A (en) * | 1980-06-23 | 1982-01-21 | Hiroshima Kasei Ltd | Production of injection molded boots having bore lining cloth |
| JPS5922501A (en) * | 1982-07-28 | 1984-02-04 | アキレス株式会社 | Production of cold protecting injection molded boots |
| JPS61203902A (en) * | 1985-03-07 | 1986-09-09 | 株式会社アサヒコーポレーション | Injection molding of shoes |
| JPS62268502A (en) * | 1986-05-19 | 1987-11-21 | 株式会社 ミツウマ | Production of injection molding shoes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH057501A (en) * | 1991-07-04 | 1993-01-19 | Honma Shoji Kk | Injection molding-made arctic boot and production thereof |
| US6986822B1 (en) * | 1999-01-11 | 2006-01-17 | Gottlieb Binder Gmbh & Co. | Method for producing a foam element, especially a foam padding element for a plane or vehicle seat |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2545611B2 (en) | 1996-10-23 |
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