WO2017219161A1 - 复合式鞋垫及其制造方法 - Google Patents

复合式鞋垫及其制造方法 Download PDF

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Publication number
WO2017219161A1
WO2017219161A1 PCT/CN2016/000323 CN2016000323W WO2017219161A1 WO 2017219161 A1 WO2017219161 A1 WO 2017219161A1 CN 2016000323 W CN2016000323 W CN 2016000323W WO 2017219161 A1 WO2017219161 A1 WO 2017219161A1
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Prior art keywords
weight
hydrophilic
insole
parts
foaming
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PCT/CN2016/000323
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English (en)
French (fr)
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李宇轩
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李宇轩
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Application filed by 李宇轩 filed Critical 李宇轩
Priority to PCT/CN2016/000323 priority Critical patent/WO2017219161A1/zh
Publication of WO2017219161A1 publication Critical patent/WO2017219161A1/zh

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
    • C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
    • C08L31/04—Homopolymers or copolymers of vinyl acetate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/08—Polyurethanes from polyethers

Definitions

  • the invention relates to an insole and a manufacturing method thereof, in particular to a composite insole capable of simultaneously having shock absorption, average pressure release property, moisture absorbing and thermo absorbing, so as to A dry (hygroscopic) and cool (endothermic) effect can be achieved when the soles of the feet of the human body are in contact.
  • the insole is placed on the inner bottom surface of the shoe for forming a contact layer between the inner bottom surface of the shoe and the skin of the foot of the human body (the sole of the foot), so that the insole can satisfy the consumption through the use effect provided or provided.
  • the present invention has been made to solve the above problems in the prior art, and an object thereof is to provide a shock absorbing property, an average pressure release property, a moisture absorbing property, and a thermo absorbing property at the same time.
  • the composite insole and the method of manufacturing the same can achieve a dry (hygroscopic) and cool (endothermic) effect when brought into contact with the foot or sole of the human body.
  • the present invention adopts the following technical means:
  • a composite insole of the present invention comprising:
  • hydrophilic surface cushion layer made of a hydrophilic foam body formed of PU (polyurethane);
  • a bottom layer made of a foam formed of PU (polyurethane) or EVA (Ethylene Vinyl Acetate), the upper surface of which is attached to the lower surface of the hydrophilic surface layer to be joined One.
  • PU polyurethane
  • EVA Ethylene Vinyl Acetate
  • the foam body for forming the hydrophilic surface pad layer is 40 to 60 parts by weight of the PU prepolymer and 9 to 20 of Acrylic Emulsion Polymer (Acrylic Emulsion Polymer).
  • the weight component is a main constituent component of the foaming material; wherein the component constituting the foaming material further comprises 0 to 25 parts by weight of the polyether polyol, 0 to 30 parts by weight of water, 0 to 25 parts by weight of the surfactant, and 0 to 1 part by weight of the ammonia catalyst, wherein the PU prepolymer contains 40 to 70% by weight of the polyether polyol and 30 to 60% by weight of the isocyanate, and the molecular weight of the polyether polyol contained in the PU prepolymer is between Between 50 and 2000, and containing at least 40 mole% of diethyl ether (-EO-), and ether (-EO-) content of 20 to 99.9% by weight; and the whole can be produced by the action of the isocyan
  • the isocyanate is selected from one or a mixture of two or more of TDI (Toluene Diissocyanate), MDI (Methylene Diphenyl Diisocyanate), IPDI (Isophorone Diisocyanate) selected from Pluronic 61, 62, 64 or 101, LK443.
  • TDI Toluene Diissocyanate
  • MDI Methylene Diphenyl Diisocyanate
  • IPDI Isophorone Diisocyanate
  • the foaming raw material further comprises 0 to 20 parts by weight of the cooling powder, wherein the cooling powder is a melamine resin-coated powdery material having a melting point of 28.3 °C.
  • the jelly powder (or heat absorbing powder) is a micro encapsulation particle.
  • the Frisby Company of the United States used jelly powder as an additive for about 7 years ago to make a woven fabric and a hydrophilic having an insulating and cooling effect.
  • Sexual (open cell) foam, and the foam is used in a variety of products such as home furnishing or medical bed.
  • the bottom cushion layer is further provided with a plurality of holes.
  • the plurality of holes are uniformly distributed or non-uniformly distributed on the underlayer.
  • a gas permeable surface cloth is further attached to the upper surface of the hydrophilic surface layer and pressed to form a surface layer semi-finished product.
  • the hydrophilic underlayer has a thickness of 2 to 4 mm, and the underlayer has a thickness of 2 to 4 mm.
  • hydrophilic PU foam of the present invention can be completed according to the following steps:
  • Step ⁇ 1> provides a hydrophilic PU prepolymer;
  • the PU prepolymer contains a polyether polyol (Polyether polyol) 40 to 70% by weight and an isocyanate 30 to 60% by weight; and
  • the polyether polyol contained in the prepolymer has a molecular weight of 50 to 2000, and contains at least 40 mole% of an ether group (-EO-), and an ether group (-EO-) content of 20 to 99.9%;
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 3> 40 to 60 parts by weight of the PU prepolymer prepared above and 9 to 20 parts by weight of an acrylic polymer compound (Acrylic Emulsion Polymer) are used as main constituent components of the foaming raw material;
  • the component of the foaming material further comprises 0 to 25 parts by weight of the polyether polyol, 0 to 30 parts by weight of water, 0 to 25 parts by weight of the surfactant, 0 to 1 part by weight of the ammonia catalyst, and 0 to 20 parts by weight of the cooling powder;
  • the raw materials are mixed according to the set weight ratio, and injected into the molding die, the mold temperature is controlled between 30 and 50 ° C, and the foaming molding process is performed, and the foaming time is about 5 to 10 minutes; among them, the jelly powder (particle wrapping material) It may be a powdered material coated with a melamine resin having a melting point of 28.3 ° C;
  • Step ⁇ 6> The foam molding body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the length is several tens of minutes, and the length is several In an hour, to achieve the dehydration effect, the process of the hydrophilic foam body is completed.
  • the PU prepolymer is composed of a polyether polyol and an isocyanate in an appropriate ratio, but the PU prepolymer can be prepared by a preparation procedure such as the step ⁇ 1>.
  • the first steps ⁇ 1> and ⁇ 3> can also be simplified into a "one shot technique", in which the above raw materials are directly mixed into a mold in a suitable proportion for foam molding without preparation. Preparation procedure or procedure for PU prepolymer.
  • the added jelly is a micro encapsulation particle, and the jelly may or may not be added (0 to 20%) because the jelly is added to the foam.
  • the jelly powder There is only a physical reaction between the jelly powder and the foam raw material without chemical changes. (chemical reaction), no new chemical structure or new chemical bond is generated between the cooling powder and the foam raw material, so the addition or non-addition of the cooling powder does not substantially affect the hydrophilic PU foam of the present invention.
  • the moisture absorbing and thermo absorbing properties, that is, the hydrophilic PU foam of the present invention can still achieve a dry (hygroscopic) and cool (heat absorbing) contact use effect.
  • the present invention also provides a method for manufacturing a composite insole, which is used for manufacturing the composite insole according to any of the above, comprising the following steps:
  • a hydrophilic foam body formed by foaming PU (Polyurethane) is cut into a plurality of sheets having a thickness to serve as the hydrophilic surface layer to form a hydrophilic sheet. Sessile semi-finished product;
  • hydrophilic underlayer semi-finished product and the underlayer semi-finished product are pressed and pressed to each other to be joined into a single body;
  • a gas permeable surface cloth is further attached to the upper surface of the sheet which is the hydrophilic surface layer, and then pressed to form the hydrophilic surface layer.
  • Semi finished product preferably, a gas permeable surface cloth is further attached to the upper surface of the sheet which is the hydrophilic surface layer, and then pressed to form the hydrophilic surface layer.
  • a plurality of holes are further provided on the sheet serving as the underlayer.
  • the composite insole thus manufactured can simultaneously have shock absorption, average pressure release, moisture absorbing and thermo absorbing, so that it can be dry when it comes into contact with the sole of the foot of the human body ( Moisture absorption and cool (endothermic) effects, which in turn enhance comfort and efficiency, and meet the needs of mass production.
  • FIG. 1 is a perspective view showing the appearance of an embodiment of a composite insole according to the present invention.
  • FIG. 2 is a schematic exploded view of the insole shown in FIG. 1.
  • Figure 3 is a top plan view of the insole shown in Figure 1.
  • Figure 4 is a cross-sectional view taken along line 4-4 of Figure 3.
  • Figure 5 is a cross-sectional view taken along line 5-5 of Figure 3.
  • FIG. 6 is a semi-finished product of a hydrophilic watch pad layer and a bottom pad layer in the manufacturing process of the composite insole of the present invention; Schematic diagram of the front of the press and set.
  • the surfactant B may be Pluronic 61, 62, 64 or 101 (product of BASF, Germany); or LK443, DC-198, DC504 (product of AIRPRODUCTS, USA); or LH525, LK260 (product of TH. Goldschmidt, Germany) Wait.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer; the PU prepolymer comprises 40% by weight of PEG 600 and 60% by weight of Toluene Diisocyanate (TDI);
  • TDI Toluene Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the foam has strong tensile strength and tear resistance, and the rebound time is 1 to 5 seconds. It has hygroscopicity and heat absorption.
  • Suitable products pillow, medical mattress, office chair cushion, bedding mattress or shoe material, etc. Products; but the main application of shoes, cushions, mattresses.
  • the physical property data of a foam body is as follows:
  • Density Density (g/cm 3 ) 0.148 0.189 texture Very delicate and soft Very delicate and soft Rebound time Recovery Time (sec) 3 2 Breathable Breath Ability good good good Tensile Strengh (kg/cm 2 ) 1.44 1.47 Elongation (%) 323 390 Tear resistance (kg/cm) 0.79 1.52 Water absorption multiple *Water Absorbency(wet/dry) 12 7.7 Permanent deformation rate** (22hrs/50°C) 19.01 8.58
  • Acrylic emulsified polymer compound 10 16.67 Surfactant A (surfactant A) 5 8.33 Surfactant B (surfactant B) 0.4 0.67 PU prepolymer 30 50 Total 60 100
  • the surfactant A may be Brig 93 (ICI America) or Emulgale 1000NI (Henktel) or the like.
  • Surfactant B was the same as in Example 1.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer; the PU prepolymer contains 50% by weight of PEG 400 and Methylene Diphenyl Diisocyanate (MDI) ) 50% by weight;
  • MDI Methylene Diphenyl Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the foam is softer than the first embodiment, and has a rebound time of 1 to 5 seconds, which is hygroscopic and endothermic; suitable products: pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials; Seat cushions and mattresses are the main objects of application.
  • the physical property data of a foam body (surfactant A can be Brig 93, surfactant B is Pluronic 61) is as follows:
  • surfactant A and surfactant B are the same as in the second embodiment, and the molecular weight of the polyether polyol A is between 50 and 1000, preferably 50 to 400, and the ether (-EO-) content is 20 to 20. 99.9 ⁇ , but preferably 50 to 85%, which may be: PEG (Polyoxyethylene glycol) 200, PEG 600 or mixed Ethylene glycol, Diethylene glycol, Propylene glycol or Glycerol.
  • the ammonia catalyst I can be Dabco 33LV, Dabco DMEA (product of AIR PRODUCTS, USA), and the ammonia catalyst II can be: Dabco BL-11, Dabco BL-19, Dabco BL-22 (USA) AIR PRODUCTS products); ZF-20, ZR-70, DMP (products of HUNTSMAN, USA)
  • Step ⁇ 1> provides a hydrophilic PU prepolymer; the PU prepolymer contains 40% by weight of polypropylene glycol 400 and Toluene Diisocyanate (TDI) 60% by weight;
  • TDI Toluene Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the oven temperature is about 50 ⁇ Between 100 ° C, the baking time depends on the size and weight of the object, the short is several tens of minutes, and the length is several hours to achieve the dehydration effect, and the process of the foam product is completed.
  • the foam is softer than the second embodiment , but has a small disadvantage of a small size shrinkage.
  • the rebound time can be adjusted between 1 and 10 seconds.
  • Applicable products pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials, but pillows, cushions and mattresses are the main objects.
  • surfactant A and surfactant B are the same as in the second embodiment, and the polyether polyol B has a molecular weight of 50 to 1000, preferably 50 to 400, and an ether (-EO-) content of 20 to 20. 99.9%, but preferably 50-85%, which may be: PEG 300 or mixed Ethylene glycol, Diethylene glyco, Propylene glycol or Glycerol.
  • Ammonia catalyst I and ammonia catalyst II are the same as those in the third embodiment.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer; the PU prepolymer contains 70% by weight of polyethylene glycol 200 and 30% by weight of Isophorone Diisocyanate (IPDI). ratio;
  • IPDI Isophorone Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the softness of the foam is the same as that of the third embodiment , and there is no dimensional shrinkage, the deformation rate is low, and the rebound time can be adjusted between 1 and 10 seconds.
  • Applicable products pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials, but pillows, cushions and mattresses are the main objects. Its physical properties are as follows:
  • surfactant A and surfactant B are the same as in the second embodiment, and the molecular weight of the polyether polyol C is between 50 and 1000, preferably 50 to 400, and the ether (-EO-) content is 20 to 20. 99.9%, but preferably 50-85%, which can be: PEG 400 or mixed Ethylene glycol, Diethylene glycol, Propylene glycol Or Glycerol et al.
  • Ammonia catalyst I and ammonia catalyst II are the same as those in the third embodiment.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer;
  • the PU prepolymer contains polypropylene glycol 600 50% by weight and toluene diisocyanate (TDI) 50% by weight;
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the foam has the same softness as that of the third embodiment , and has no dimensional shrinkage, low deformation rate, and a long rebound time of about 1 to 20 seconds.
  • Applicable products pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials, but pillows are the main application.
  • the raw materials are selected in the same manner as in the above Examples 1 to 5.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer;
  • the PU prepolymer comprises a polypropylene glycol 400 60% by weight and an Isophorone Diisocyanate (IPDI) 40% by weight;
  • IPDI Isophorone Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the softness of the foam is the same as that of the third embodiment , and there is no dimensional shrinkage, the deformation rate is low, and the rebound time is 1 to 10 seconds.
  • Applicable products pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials, but pillows are the main application.
  • the raw materials are selected in the same manner as in the above Examples 1 to 5.
  • Step ⁇ 1> provides a hydrophilic PU prepolymer; the PU prepolymer contains 40% by weight of polypropylene glycol 300 and Toluene Diisocyanate (TDI) 60% by weight;
  • TDI Toluene Diisocyanate
  • Step ⁇ 2> providing a molding die
  • Step ⁇ 4> After the foaming is completed, the foamed molded foam molded body is taken out from the mold;
  • Step ⁇ 5> The foam molded body is placed in an oven for high-temperature baking operation, and the temperature of the oven is between 50 and 100 ° C.
  • the baking time depends on the size and weight of the object, and the short is several tens of minutes, and the length is several Hours, in order to achieve the dehydration effect, and complete the process of foam products.
  • the softness of the foam is the same as that of the third embodiment , and there is no dimensional shrinkage, low resistance under pressure, and the rebound time is 1 to 10 seconds.
  • Applicable products pillows, medical mattresses, office chair cushions, bedding mattresses or shoe materials.
  • the present invention provides a composite insole 1 which mainly comprises: a hydrophilic cushion layer 10 and a bottom cushion layer 20, wherein the hydrophilicity table shown in the drawings
  • the underlayer 10, the underlayer 20 and the hydrophilic underlayer 40 and the underlayer semi-finished product 50 shown in FIG. 6, the thicknesses of the layers are only used to illustrate the structure of the composite insole 1. Therefore, the thickness and proportional relationship of each layer are not shown in actual size.
  • the hydrophilic surface layer 10 is made of a hydrophilic foam body formed of PU (polyurethane) (prepared according to any one of the first to seventh embodiments), and the thickness of the hydrophilic surface layer 10 can be set. It is about 2 to 4 mm, but is not limited. In the present embodiment, the thickness of the hydrophilic surface layer 10 is 3 mm. Since the hydrophilic surface layer 10 is disposed on the upper surface of the composite insole 1, it can be directly in contact with the sole of the human body when in use, and the hydrophilic surface layer 10 has a suitable thickness such as 2 to 4 mm. Therefore, when the composite insole 1 is in use, the hydrophilic surface layer 10 can simultaneously have various functions such as shock absorption, average pressure release, moisture absorbing and thermo absorbing. The effect is enough to achieve a dry (hygroscopic) and cool (endothermic) effect on the soles of the human body.
  • PU polyurethane
  • a side cloth 30 may be disposed on the upper surface 11 of the hydrophilic surface layer 10, and the surface cloth 30 is a gas permeable cloth surface which is attached and pressed onto the hydrophilic surface layer 10.
  • the surface 11 is provided as a contact surface in contact with the sole of the human body, thereby further enhancing the tactile sensation of the human sole when contacting the composite insole 1 and/or the aesthetic appearance of the composite insole 1. Since the face cloth 30 is a gas permeable cloth surface, it does not affect the shock absorption, the average pressure release property, the moisture absorbing property and the heat absorption property of the hydrophilic surface cushion layer 10 (thermo). Absorbing) and other effects.
  • the underlayer 20 is a foam layer formed by using PU (polyurethane) or EVA (Ethylene Vinyl Acetate).
  • the thickness of the underlayer 20 can be set to about 2 to 4 mm, but is not limited. In this embodiment, the underlayer is used. Layer 20 has a thickness of 3 mm.
  • the upper surface 21 of the underlayer 20 is pressed and pressed on the lower surface 12 of the hydrophilic surface layer 10 to form a non-separable mat; in addition, the underlayer 20 can be used as needed or The design needs to provide a plurality of holes 23, such as forming the bottom layer 20 into a mesh structure (as shown in FIG.
  • the holes 23 can be formed by punching operations, that is, the bottom pad Layer 20 may or may not be punched as needed. Further, the arrangement or distribution pattern of the holes 23 on the underlayer 20 is not limited, and may be uniformly distributed or non-uniformly distributed on the underlayer 20, as in the embodiment, the holes 23 are It is evenly distributed on the underlayer 20 such that the underlayer 20 is shaped like a mesh structure.
  • the composite insole 1 of the present embodiment is placed on the inner bottom surface of the shoe (not shown), the lower surface 22 of the underlayer 20 is attached to the inner bottom surface of the shoe, and the holes 23 are Each of the formed spaces can further provide a cushioning effect or a heat dissipation effect such as an airbag.
  • the manufacturing method of the composite insole 1 of the present invention comprises the following steps:
  • Step 1 cutting a hydrophilic foam body formed by foaming PU (polyurethane) into a plurality of sheets having a thickness for use as the hydrophilic surface layer 10 (also regarded as a table mat) a layer of semi-finished product 40, as shown in Fig. 6; in addition, a gas permeable surface cloth 30 may be attached to the surface 11 of the hydrophilic surface layer 10 to make the surface cloth 30 and the hydrophilicity
  • the watch pad 10 is attached and pressed to form a hydrophilic underlayer semi-finished product 40.
  • Step 2 foaming a foam body with PU (polyurethane) or EVA (Ethylene Vinyl Acetate), and then cutting the foam body into a plurality of sheets having a thickness as the bottom cushion layer 20 (also visible As a bottom layer semi-finished product 50, as shown in FIG. 6; at this time, the bottom cushion layer 20 can be provided with a plurality of holes 23 according to the needs of use or design requirements, but is not limited to form a bottom layer semi-finished product 50.
  • the holes 23 are formed by a punching operation but are not intended to limit the present invention.
  • Step 3 The hydrophilic underlayer semi-finished product 40 and the underlayer semi-finished product 50 are bonded to each other to form a piece 60.
  • Step 4 Performing an insole setting operation on the sheet body 60 by a molding die (not shown) to complete an insole semi-finished product.
  • Step 5 Complete a trimming insole 1 by cutting or finishing the trimming operation.
  • the step 1 for forming a hydrophilic underlayer semi-finished product 40 and the step 2 for forming a underlayer semi-finished product 50 can be carried out separately in an actual process. That is, the hydrophilic underlayer semi-finished product 40 and the underlayer semi-finished product 50 can be separately manufactured at different places, and the order relationship is not limited therebetween.
  • the composite insole 1 of the present invention has the following advantages as compared with the prior art:
  • the composite insole 1 of the present invention has a hydrophilic cushion layer 10 of a suitable thickness, it can directly absorb shock absorption, average pressure release property, moisture absorbing and heat absorption on the contact surface of the human sole.
  • the effect of thermo absorbing, etc. can achieve a more dry (hygroscopic) and cooler (endothermic) effect on the sole of the human body than the existing insole.
  • the thickness of the hydrophilic surface layer 10 of the present invention is a part of the overall thickness of the composite insole 1, so that the composite insole 1 can relatively reduce the pro-function with the same degree of function.
  • the steps 1 to 5 included therein can be produced by using the related jig and mold, which is advantageous for the amount of the composite insole 1 Production can relatively enhance the market competitiveness of products.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

一种复合式鞋垫及其制造方法，其包含一亲水性表垫层及一底垫层，其中该亲水性表垫层是利用PU发泡成一亲水性泡绵体，再裁切成多片薄片，各薄片的表面可另与一可透气的面布贴合压制以形成亲水性表垫层半成品；其中该底垫层是利用PU或EVA发泡成一泡绵体，再裁切成多片薄片，且各薄片可依所需孔洞设计进行冲孔或不冲孔以形成底垫层半成品；再将该亲水性表垫层半成品与底垫层半成品相互贴合压制成一片体，再通过成型模具进行鞋垫定形作业，再经裁断或整理修边作业得到一复合式鞋垫；该复合式鞋垫兼具吸震性、平均释压性、吸湿性及吸热性，当其与人体的足部脚底接触时能达成干爽(吸湿)及凉爽(吸热)效应，进而增进舒适度及使用效率。

Description

复合式鞋垫及其制造方法 技术领域
本发明涉及一种鞋垫及其制造方法，特别涉及一种能同时兼具吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo absorbing)的复合式鞋垫，以使其与人体的足部脚底接触时能达成干爽(吸湿)及凉爽(吸热)效应。
背景技术
鞋垫是塞置在鞋子的内底面上使用，供可在鞋子内底面与人体的足部皮肤(脚底)的间形成一接触层，使该鞋垫能通过其所产生或提供的使用效果来满足消费者穿鞋时足部皮肤(脚底)的舒适感。由于大部分鞋子如运动鞋，几乎都是环周缘包覆在人体的足部上，其中包覆在脚背部分的鞋接触面虽可利用网布或防水透气性布材(如市面的COTEX防水透气布)来改善透气或散热效果，但包覆在脚底部分的鞋接触面则只能依靠鞋垫来加以改善，故对消费者而言，鞋垫的选择及其所附加的功能性设计就相对重要。
然而，市面上已有的鞋垫，虽有生产者已在鞋垫做出各种附加的功能性设计，但是之前这些所具有的各种功能性设计，常局限在某一特定功能，例如针对一鞋垫所常见的缺点及问题，例如吸震性不足、平均释压性不足，尤其是吸湿性(moisture absorbing)不足及吸热性(thermo absorbing)不足等，目前却未见有能一次解决上述问题的技术方案产生，因此已有的鞋垫在使用一段时间之后，使用者脚底即容易产生闷热感，故已有鞋垫对使用者所提供的舒适感是不够的。
因此，如何制造一具简单结构又方便制造且成本相对较低的鞋垫，更能用来提升鞋垫使用的舒适度，并能同时避免足部或脚底接触面产生闷热感，乃是当前鞋垫的重要课题，也是本发明所要解决的问题。
发明内容
本发明是为解决上述现有技术中的问题而提出，其目的在于提供一种使用时能同时兼具吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo absorbing)的复合式鞋垫及其制造方法，以使其与人体的足部或脚底接触时能达成干爽(吸湿)及凉爽(吸热)效应。
为达成上述目的，本发明采用了以下技术手段：
本发明的一种复合式鞋垫，其包含：
一亲水性表垫层，其是利用PU(聚氨酯，Polyurethane)形成的亲水性泡绵体制成；
一底垫层，其是利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)形成的泡绵体制成，该底垫层的上表面贴合在该亲水性表垫层的下表面上以连结成一体。
在本发明中，优选的，其中用以形成该亲水性表垫层的泡绵体是利用PU预聚合物40～60重量份以及压克力乳化高分子化合物(Acrylic Emulsion polymer)9～20重量份，作为发泡原材料的主要构成成分；其中构成该发泡原材料的成分中还包含有聚醚多元醇0～25重量份、水0～30重量份、表面活性剂0～25重量份以及氨催化剂0～1重量份又其中该PU预聚合物含有聚醚多元醇40～70％重量比及异氰酸酯30～60％重量比，且PU预聚合物所含有的聚醚多元醇的分子量介于50到2000之间，且至少含有40mole％以上的乙醚基(-EO-)，且乙醚基(-EO-)含量在20～99.9％重量比；而整体可通过该异氰酸酯与大量水作用产生的CO2做为发泡剂，而发泡成型，其中，优选的，所述聚醚多元醇选自PEG200、PEG 300、PEG 400、PEG 600或由乙二醇，二乙二醇，丙二醇或甘油生成的聚合物中的任一种或两种以上的混合，所述异氰酸酯选自TDI(Toluene Diissocyanate)、MDI(Methylene Diphenyl Diisocyanate)、IPDI(Isophorone Diisocyanate)中的一种或两种以上的混合，所述表面活性剂选自Pluronic 61、62、64或101、LK443、DC-198、DC504、LH525、LK260、Brig 93或Emulgale 1000 NI中的任一种或两种以上的混合，所述氨催化剂选自Dabco 33LV、Dabco DMEA、Dabco BL-11、Dabco BL-19、Dabco BL-22、ZF-20、ZR-70或DMP中的任一种或两种以上的混合。
在本发明中，优选的，其中该发泡原材料中还包括凉粉0～20重量份，其中该凉粉为熔点28.3℃的三聚氰胺树脂包覆的粉状材料。
所述凉粉(或称吸热粉)为一种微粒包裹材料(micro encapsulation particle)，美国Frisby公司约7年前曾使用凉粉当作添加剂而制成具有绝缘及凉感效应的织布和亲水性(开孔性)泡绵，并使该泡绵使用于寝具床垫(home furnishing)或医疗床垫(medical bed)等多种产品上。
在本发明中，优选的，其中该底垫层上进一步设有多个孔洞。
在本发明中，优选的，其中该多个孔洞系均匀分布或非均匀分布在该底垫层上。
在本发明中，优选的，其中在该亲水性表垫层的上表面上进一步贴合一可透气的面布并压制形成一表垫层半成品。
在本发明中，优选的，其中该亲水性表垫层的厚度是2～4mm，该底垫层的厚度是2～4mm。
其中，本发明的亲水性PU泡绵体可依据下列步骤完成：
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚醚多元醇(Polyether polyol)40～70％重量比及异氰酸酯30～60％重量比；而PU预聚合物所含有的聚醚多元醇的分子量介于50到2000之间，且至少含有40mole％以上的乙醚基(-EO-)，且乙醚基(-EO-)含量在20～99.9％；
步骤<2>提供成型模具；
步骤<3>将上述制备得到的PU预聚合物40～60重量份以及压克力乳化高分子化合物(Acrylic Emulsion polymer)9～20重量份，作为发泡原材料的主要构成成分；其中构成该发泡原材料的成分中还包含有聚醚多元醇0～25重量份、水0～30重量份、表面活性剂0～25重量份、氨催化剂0～1重量份以及凉粉0～20重量份组成；原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；又其中，凉粉(微粒包裹材料)可为熔点为28.3℃的三聚氰胺树脂包覆的粉状材料；
步骤<4>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<5>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<6>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成亲水性泡绵体的制程。
又上述制程中，PU预聚合物(PU prepolymer)是由聚醚多元醇及异氰酸酯以适当比例构成，但该PU预聚合物可先经过一制备程序如步骤<1>而制成，而对于现有化工技术而言，该先行步骤<1>及<3>亦可简化成”一次成型技术”(one shot technique)，即将上述原料直接按适当比例混合注入模具发泡成型，而不须经制备PU预聚合物(PU prepolymer)的制备程序或步骤。
本发明上述构成中，所添加的凉粉(吸热粉)系一种微粒包裹材料(micro encapsulation particle)，而该凉粉可添加或不添加(占0～20％)，因为在泡绵中添加凉粉，该凉粉与泡绵原材料间只产生物理变化(physical reaction)而未产生化学变化 (chemical reaction)，致凉粉与泡绵原材料间并未产生新化学结构或新化学键(chemical bond)，因此添加或不添加凉粉基本上并不影响本发明亲水性PU泡绵(Hydrophilic PU foam)所具有的吸湿性(moisture absorbing)及吸热性(thermo absorbing)，也就是本发明亲水性PU泡绵仍然可达成干爽(吸湿)及凉爽(吸温)的接触使用效果。
进一步的，本发明还提出了一种复合式鞋垫的制造方法，其是用以制造如上任一项所述的复合式鞋垫，包含下列步骤：
将利用(hydrophilic)PU(聚氨酯，Polyurethane)发泡成型的一亲水性泡绵体裁切成多片具一厚度的薄片供当作该亲水性表垫层，以使各薄片形成一亲水性表垫层半成品；
利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)发泡成型一泡绵体，再裁切成多片具一厚度的薄片供当作该底垫层，以使各薄片形成一底垫层半成品；
将该亲水性表垫层半成品与该底垫层半成品相互贴合压制以连结成一片体；
通过成型模具以对该片体进行鞋垫定形作业，以完成一鞋垫半成品；及
经裁段或整理修边作业，以完成一复合式鞋垫。
在本发明所述的制造方法中，优选的，其中在该当作该亲水性表垫层的薄片的上表面上进一步贴合一可透气的面布，再压制形成该亲水性表垫层半成品。
在本发明所述的制造方法中，优选的，其中在当作该底垫层的薄片上进一步设有多个孔洞。
由此制造得到的该复合式鞋垫能够同时兼具吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo absorbing)，使其与人体的足部脚底接触时能达成干爽(吸湿)及凉爽(吸热)效应，进而增进舒适度及使用效率，并符合量产化需求。
附图说明
图1为本发明复合式鞋垫一实施例的外观立体示意图。
图2为图1所示鞋垫的结构分解示意图。
图3为图1所示鞋垫的上视示意图。
图4为图3中剖线4-4的剖视示意图。
图5为图3中剖线5-5的剖视示意图。
图6为本发明复合式鞋垫的制作流程中亲水性表垫层半成品与底垫层半成品在 压合及定型的前的示意图。
符号的简单说明：
1  复合式鞋垫
10 亲水性表垫层
11 上表面
12 下表面
20 底垫层
21 上表面
22 下表面
23 孔洞
30 面布
40 亲水性表垫层半成品
50 底垫层半成品
具体实施方式
为使本发明更加明确详实，现列举较佳实施例并配合下列图示，将本发明的结构及其技术特征详述如后，其中如图所示的复合式鞋垫1为本发明的一较佳实施例，因此本实施例的外形是用以说明本发明的结构特征但非用以限制本发明。
实施例一亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水(H2O) 19.6 32.67
压克力乳化高分子化合物 10 16.67
表面活性剂B(surfactant B) 0.4 0.67
PU预聚合物(PU prepolymer) 30 50
Total(合计) 60 100
其中，表面活性剂B可为Pluronic 61、62、64或101(德国BASF公司产品)；或LK443，DC-198、DC504(美国AIRPRODUCTS公司产品)；或LH525、LK260(德国TH.Goldschmidt公司产品)等。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有PEG 600 40％重量比及甲苯二异氰酸酯(Toluene Diisocyanate，TDI)60％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵的抗拉性及抗撕性较强，回弹时间1～5秒，具吸湿性及吸热性，适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品；但以鞋材、坐垫、床垫为主要适用对象。其中，一泡绵体(表面活性剂B为Pluronic 61)的物性数据如下：
密度Density(g/cm3) 0.148 0.189
质地 非常细致柔软 非常细致柔软
回弹时间Recovery Time(sec) 3 2
透气性Breath Ability 佳 佳
拉伸强度Tensile Strengh(kg/cm2) 1.44 1.47
伸长率Elongation(％) 323 390
撕裂强度Tear Resistance(kg/cm) 0.79 1.52
吸水倍数*Water Absorbency(wet/dry) 12 7.7
永久变形率**(22hrs/50℃) 19.01 8.58
*吸水倍数：吸水后重量/吸水后重量
**永久变形率：依据ASTM D395，方法B，压缩50％条件下测试
实施例二亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水(H2O) 14.6 24.33
压克力乳化高分子化合物 10 16.67
表面活性剂A(surfactant A) 5 8.33
表面活性剂B(surfactant B) 0.4 0.67
PU预聚合物(PU prepolymer) 30 50
Total(合计) 60 100
其中，表面活性剂A可为Brig 93(ICI America公司)或Emulgale 1000NI(Henktel公司)等。表面活性剂B同实施例1。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有PEG 400 50％重量比及二苯基甲烷-4，4′-二异氰酸酯(Methylene Diphenyl Diisocyanate，MDI)50％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵比实施例一柔软，回弹时间1～5秒，具吸湿性及吸热性；适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品；但以枕头、坐垫、床垫为主要适用对象。其中，一泡绵体(表面活性剂A可为Brig 93，表面活性剂B为Pluronic 61)的物性数据如下：
Figure PCTCN2016000323-appb-000001
Figure PCTCN2016000323-appb-000002
实施例三亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水(H2O) 7 12.24
压克力乳化高分子化合物 7 12.24
表面活性剂A(surfactant A) 7.1 12.42
表面活性剂B(surfactant B) 0.14 0.24
氨催化剂I(amine catalyst I) 0.07 0.12
氨催化剂II(amine catalyst II) 0.07 0.12
聚醚多元醇A(polyol A) 7.21 12.62
PU预聚合物(PU prepolymer) 28.59 50
Total(合计) 57.18 100
其中，表面活性剂A以及表面活性剂B同实施例二，聚醚多元醇A的分子量介于50～1000之间，但以50～400为佳，乙醚基(-EO-)含量在20～99.9‰，但以50～85％为佳，其可为：PEG(Polyoxyethylene glycol)200、PEG 600或混合Ethylene glycol、Diethylene glycol、Propylene glycol或Glycerol等。氨催化剂I(amine catalyst I)可为Dabco 33LV、Dabco DMEA(美国AIR PRODUCTS公司产品)，氨催化剂II(amine catalyst II)可为：Dabco BL-11、Dabco BL-19、Dabco BL-22(美国AIR PRODUCTS公司产品)；ZF-20、ZR-70、DMP(美国HUNTSMAN公司产品)
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚丙二醇400 40％重量比及甲苯二异氰酸酯(Toluene Diisocyanate，TDI)60％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～ 100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵比实施例二柔软，但略有尺寸萎缩的小缺点。回弹时间可调整在1～10秒之间。适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品，但以枕头、坐垫、床垫为主要适用对象。
实施例四亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水 7 10.18
压克力乳化高分子化合物 7 10.18
表面活性剂A 10 14.50
表面活性剂B 0.14 0.2
氨催化剂I 0.12 0.17
氨催化剂II 0.10 0.14
聚醚多元醇B 10 14.50
PU预聚合物(PU prepolymer) 34.36 50
Total(合计) 68.72 100
其中，表面活性剂A以及表面活性剂B同实施例二，聚醚多元醇B是分子量介于50～1000之间，但以50～400为佳，乙醚基(-EO-)含量在20～99.9％，但以50～85％为佳，其可为：PEG 300或混合Ethylene glycol，Diethylene glyco，Propylene glycol或Glycerol等。氨催化剂I、氨催化剂II同实施例三。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚乙二醇200 70％重量比及异佛尔酮二异氰酸酯(Isophorone Diisocyanate，IPDI)30％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵柔软度与实施例三相同，完全没有尺寸萎缩现象，变形率低，回弹时间可调整在1～10秒之间。适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品，但以枕头、坐垫、床垫为主要适用对象。其物性数据如下：
密度(g/cm3) 0.145
柔软度(在-15℃) 柔软
回弹时间(sec) 5～10
透气性 佳
拉伸强度(kg/cm2) 0.158
伸长率(％) 140
撕裂强度(kg/cm 0.315
吸水倍数*(wet/dry) 6.3
实施例五亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水 7 9.77
压克力乳化高分子化合物 7 9.77
表面活性剂A 7.1 9.92
表面活性剂B 0.14 0.20
氨催化剂I 0.07 0.10
氨催化剂II 0.07 0.10
聚醚多元醇C 14.42 20.14
PU预聚合物(PU prepolymer) 35.80 50
Total(合计) 71.60 100
其中，表面活性剂A以及表面活性剂B同实施例二，聚醚多元醇C系分子量介于50～1000之间，但以50～400为佳，乙醚基(-EO-)含量在20～99.9％，但以50～85％为佳，其可为：PEG 400或混合Ethylene glycol，Diethylene glycol，Propylene glycol 或Glycerol等。氨催化剂I、氨催化剂II同实施例三。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚丙二醇600 50％重量比及甲苯二异氰酸酯(Toluene Diisocyanate，TDI)50％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵柔软度与实施例三相同，完全没有尺寸萎缩现象，变形率低，回弹时间可较长，约1～20秒。适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品，但以枕头为主要适用对象。
实施例六亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
水 7 11.51
压克力乳化高分子化合物 7 11.51
表面活性剂A 7.1 11.68
表面活性剂B 0.14 0.23
氨催化剂I 0.07 0.11
氨催化剂II 0.07 0.11
聚醚多元醇B 3.61 5.94
聚醚多元醇C 5.41 8.90
PU预聚合物(PU prepolymer) 30.40 50
Total(合计) 60.80 100
其中，原料的选择同上述实施例一至五。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚丙二醇400 60％重量比及异佛尔酮二异氰酸酯(Isophorone Diisocyanate，IPDI)40％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵柔软度与实施例三相同，完全没有尺寸萎缩现象，变形率低，回弹时间1～10秒。适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品，但以枕头为主要适用对象。
实施例七亲水性PU泡绵体的制备
<构成比例>
原料 重量单位 重量百分率(％)
压克力乳化高分子化合物 8 14.1
表面活性剂A 12 21.2
表面活性剂B 0.12 0.21
氨催化剂I 0.12 0.21
氨催化剂II 0.12 0.21
聚醚多元醇B 8 14.1
PU预聚合物(PU prepolymer) 28.36 50
Total 56.72 100
其中，原料的选择同上述实施例一至五。
<制备方法>
步骤<1>提供一亲水性PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚丙二醇300 40％重量比及甲苯二异氰酸酯(Toluene Diisocyanate，TDI) 60％重量比；
步骤<2>提供成型模具；
步骤<3>将上述原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
步骤<4>待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
步骤<5>将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成泡绵产品的制程。
<特性>
本泡绵柔软度与实施例三相同，完全没有尺寸萎缩现象，变形率低(low resistance under pressure)，回弹时间1～10秒。适用产品：枕头、医疗床垫、办公椅坐垫、寝具床垫或鞋材等产品。
实施例八本发明的复合鞋垫及其制备方法
如图1至图5所示，本发明提供一种复合式鞋垫1，其主要包含：一亲水性表垫层10及一底垫层20，其中在图式中所示的亲水性表垫层10、底垫层20及第6图中所示的亲水性表垫层半成品40、底垫层半成品50，各层所绘示的厚度只是用以说明该复合式鞋垫1的结构，故各层的厚度及比例关系并非依实际尺寸绘示。
该亲水性表垫层10是利用PU(聚氨酯，Polyurethane)形成的亲水性泡绵体制成(按照实施例一至七任一方法制备)，该亲水性表垫层10的厚度可设定约2～4mm但不限制，在本实施例中该亲水性表垫层10的厚度为3mm。由于该亲水性表垫层10设在该复合式鞋垫1的上表层位置，在使用时可直接与人体的脚底接触，且该亲水性表垫层10又具有一适当厚度如2～4mm，因此当该复合式鞋垫1在使用时，该亲水性表垫层10能同时兼具吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo absorbing)等多种作用功效，足以使人体的脚底达成干爽(吸湿)及凉爽(吸热)效应。
此外，在该亲水性表垫层10的上表面11上可设置一面布30，该面布30是一可透气的布面，其系贴合并压制在该亲水性表垫层10的上表面11上，供作为与人体脚底接触的接触面，借以进一步提升人体脚底在接触该复合式鞋垫1时的触感及/或该复合式鞋垫1的外观美感。由于该面布30为一可透气的布面，故不影响该亲水性表垫层10原具有的吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo  absorbing)等作用功效。
该底垫层20是利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)形成的泡绵层，该底垫层20的厚度可设定约2～4mm但不限制，在本实施例中该底垫层20的厚度为3mm。该底垫层20的上表面21贴合压制在该亲水性表垫层10的下表面12上以结合形成一不易分离的垫体；此外，在该底垫层20上可随使用需要或造型设计需要而设置多个孔洞23，如使该底垫层20形成一网状结构体(如图2所示)但不限制，该些孔洞23可利用冲孔作业形成，也就是该底垫层20可依需要进行或不进行冲孔作业。又该些孔洞23在该底垫层20上的设置或分布型态并不限制，包含可均匀分布或非均匀分布在该底垫层20上，如在本实施例中，该些孔洞23是均匀分布在该底垫层20上，以使该底垫层20形如一网状结构体。当本实施例的复合式鞋垫1塞置在鞋子(未图示)的内底面上使用时，该底垫层20的下表面22系贴合该鞋子的内底面上，则该些孔洞23所形成的各个空间可进一步提供如气囊般的缓冲效果或散热效果。
请同时参考图6所示，本发明的复合式鞋垫1的制造方法，包含下列步骤：
步骤1：将利用PU(聚氨酯，Polyurethane)发泡成型的一亲水性泡绵体裁切成多片具一厚度的薄片供当作该亲水性表垫层10(亦可视为一表垫层半成品40，如第6图所示)；此外，亦可再于该亲水性表垫层10的表面11上贴合一可透气的面布30，使该面布30与该亲水性表垫层10贴合并压制以形成一亲水性表垫层半成品40。
步骤2：利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)发泡成型一泡绵体，再将该泡绵体裁切成多片具一厚度的薄片供当作该底垫层20(亦可视为一底垫层半成品50，如第6图所示)；此时该底垫层20上可随使用需要或造型设计需要而设置多个孔洞23但不限制，以形成一底垫层半成品50；其中该些孔洞23是利用冲孔作业形成但非用以限制本发明。
步骤3：将该亲水性表垫层半成品40与该底垫层半成品50相互贴合压制成一片体60。
步骤4：通过一成型模具(未绘示)以对该片体60进行鞋垫定形作业，以完成一鞋垫半成品。
步骤5：经裁断或整理修边作业，以完成一复合式鞋垫1。
在本发明的复合式鞋垫1的制造方法中，用以形成一亲水性表垫层半成品40的步骤1及用以形成一底垫层半成品50的步骤2，在实际流程中可以分开进行，也就是，可以在不同场所分开制造该亲水性表垫层半成品40及该底垫层半成品50，二者之间不限定先后次序关系。
本发明的复合式鞋垫1，与现有技术比较，具有下列优点：
(一)、由于本发明的复合式鞋垫1具有一适当厚度的亲水性表垫层10，能对人体脚底接触面直接产生吸震性、平均释压性、吸湿性(moisture absorbing)及吸热性(thermo absorbing)等作用功效，故可对人体脚底达成比已有鞋垫更干爽(吸湿)及更凉爽(吸热)的使用效果。
(二)、本发明的亲水性表垫层10的厚度是占该复合式鞋垫1整体厚度的一部分，使该复合式鞋垫1能在具有相同程度的作用功能的情况下，相对降低该亲水性表垫层10的材料成本。
(三)、以本发明的复合式鞋垫1的制造方法而言，其中所包含的步骤1～5，皆能利用相关的治具、模具来进行生产，故有利于该复合式鞋垫1的量产化，可相对提升产品的市场竞争力。
以上所述仅为本发明的优选实施例，对本发明而言仅是说明性的，而非限制性的；本领域普通技术人员理解，在本发明权利要求所限定的精神和范围内可对其进行许多改变，修改，甚至等效变更，但都将落入本发明的保护范围内。

Claims (10)

  1. 一种复合式鞋垫，其包含：
    一亲水性表垫层，其是利用(hydrophilic)PU(聚氨酯，Polyurethane)形成的亲水性泡绵体制成；
    一底垫层，其是利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)形成的泡绵体制成，该底垫层的上表面贴合在该亲水性表垫层的下表面上以连结成一体。
  2. 如权利要求1所述的复合式鞋垫，其中用以形成该亲水性表垫层的泡绵体是利用PU预聚合物40～60重量份以及压克力乳化高分子化合物(Acrylic Emulsion polymer)9～20重量份，作为发泡原材料的主要构成成分；其中构成该发泡原材料的成分中还包含有聚醚多元醇0～25重量份、水0～30重量份、表面活性剂0～25重量份以及氨催化剂0～1重量份又其中该PU预聚合物含有聚醚多元醇40～70％重量比及异氰酸酯30～60％重量比，且PU预聚合物所含有的聚醚多元醇的分子量介于50到2000之间，且至少含有40mole％以上的乙醚基(-EO-)，且乙醚基(-EO-)含量在20～99.9％重量比；其中，优选的，所述聚醚多元醇选自PEG200、PEG 300、PEG 400、PEG 600或由乙二醇，二乙二醇，丙二醇或甘油生成的聚合物中的任一种或两种以上的混合，所述异氰酸酯选自TDI(Toluene Diissocyanate)、MDI(Methylene Diphenyl Diisocyanate)、IPDI(Isophorone Diisocyanate)中的一种或两种以上的混合，所述表面活性剂选自Pluronic 61、62、64或101、LK443、DC-198、DC504、LH525、LK260、Brig 93或Emulgale 1000NI中的任一种或两种以上的混合，所述氨催化剂选自Dabco 33LV、Dabco DMEA、Dabco BL-11、Dabco BL-19、Dabco BL-22、ZF-20、ZR-70或DMP中的任一种或两种以上的混合。
  3. 如权利要求2所述的复合式鞋垫，其中该发泡原材料中还包括凉粉0～20重量份，其中该凉粉为熔点28.3℃的三聚氰胺树脂包覆的粉状材料。
  4. 如权利要求1所述的复合式鞋垫，其中该底垫层上进一步设有多个孔洞。
  5. 如权利要求4所述的复合式鞋垫，其中该多个孔洞均匀分布或非均匀分布在该底垫层上。
  6. 如权利要求1所述的复合式鞋垫，其中在该亲水性表垫层的上表面上进一步贴合一可透气的面布并压制形成一表垫层半成品。
  7. 如权利要求1所述的复合式鞋垫，其中该亲水性表垫层的厚度是2～4mm， 该底垫层的厚度是2～4mm。
  8. 一种复合式鞋垫的制造方法，其是用以制造如权利要求1至7任一项所述的复合式鞋垫，包含下列步骤：
    提供一PU预聚合物(hydrophilic PU prepolymer)；该PU预聚合物含有聚醚多元醇40～70％重量比及异氰酸酯30～60％重量比，且PU预聚合物所含有的聚醚多元醇的分子量介于50到2000之间，且至少含有40mole％以上的乙醚基(-EO-)，且乙醚基(-EO-)含量在20～99.9％重量比；
    提供成型模具；
    将上述制备得到的PU预聚合物40～60重量份以及压克力乳化高分子化合物(Acrylic Emulsion polymer)9～20重量份，作为发泡原材料的主要构成成分；其中构成该发泡原材料的成分中还包含有聚醚多元醇0～25重量份、水0～30重量份、表面活性剂0～25重量份、氨催化剂0～1重量份以及凉粉0～20重量份组成；原料依照设定的重量比例混合，并注入成型模具内，模温控制在30～50℃之间，进行发泡成型制程，发泡时间约5～10分钟；
    待发泡完成后，自模具中取出已发泡成型的泡绵成型体；
    将泡绵成型体置放在烤箱中进行高温烘烤作业，烤箱温度约50～100℃之间，烘烤时间视对象大小及重量而定，短则几十分钟，长则几个小时，以达成脱水效果，而完成亲水性泡绵体的制程；
    将利用PU(聚氨酯，Polyurethane)发泡成型的一亲水性泡绵体裁切成多片具一厚度的薄片供当作该亲水性表垫层，以使各薄片形成一表垫层半成品；
    利用PU(聚氨酯)或EVA(Ethylene Vinyl Acetate)发泡成型一泡绵体，再裁切成多片具一厚度的薄片供当作该底垫层，以使各薄片形成一底垫层半成品；
    将该表垫层半成品与该底垫层半成品相互贴合压制以连结成一片体；
    通过成型模具以对该片体进行鞋垫定形作业，以完成一鞋垫半成品；及
    经裁段或整理修边作业，以完成一复合式鞋垫。
  9. 如权利要求8所述的复合式鞋垫的制造方法，其中在该当作该亲水性表垫层的薄片的上表面上进一步贴合一可透气的面布，再压制形成该表垫层半成品。
  10. 如权利要求8所述的复合式鞋垫的制造方法，其中在当作该底垫层的薄片上进一步设有多个孔洞。
PCT/CN2016/000323 2016-06-21 2016-06-21 复合式鞋垫及其制造方法 WO2017219161A1 (zh)

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CN109096464A (zh) * 2018-07-05 2018-12-28 山东诺威聚氨酯股份有限公司 透气鞋垫及其制备方法
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109096464A (zh) * 2018-07-05 2018-12-28 山东诺威聚氨酯股份有限公司 透气鞋垫及其制备方法
CN109096464B (zh) * 2018-07-05 2020-12-18 山东一诺威聚氨酯股份有限公司 透气鞋垫及其制备方法
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole
USD935758S1 (en) 2019-02-19 2021-11-16 S. C. Johnson & Son, Inc. Insole

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