WO2018176173A1 - Shoe vamp having three-dimensional decorative pattern of polyurethane, preparation method therefor and shoe made therefrom - Google Patents

Shoe vamp having three-dimensional decorative pattern of polyurethane, preparation method therefor and shoe made therefrom Download PDF

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Publication number
WO2018176173A1
WO2018176173A1 PCT/CN2017/000269 CN2017000269W WO2018176173A1 WO 2018176173 A1 WO2018176173 A1 WO 2018176173A1 CN 2017000269 W CN2017000269 W CN 2017000269W WO 2018176173 A1 WO2018176173 A1 WO 2018176173A1
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shoe
printing
semi
finished product
polyurethane
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PCT/CN2017/000269
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French (fr)
Chinese (zh)
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李宇轩
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李宇轩
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Priority to PCT/CN2017/000269 priority Critical patent/WO2018176173A1/en
Publication of WO2018176173A1 publication Critical patent/WO2018176173A1/en

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing

Definitions

  • the shoe semi-finished product 60a which already has at least one PU decorative unit 40, is subjected to subsequent processing operations, such as processing in which the shoe semi-finished product 60a and the outsole 52 in the substrate 50 are combined (but not limited).
  • subsequent processing operations such as processing in which the shoe semi-finished product 60a and the outsole 52 in the substrate 50 are combined (but not limited).
  • the shoe 60 is completed as shown in FIG. 10. Since at least one PU decorative unit 40 is formed on the upper surface of the shoe 60, the shoe 60 is different from the existing shoe and is more varied, so the present invention does It can enhance the market competitiveness of the manufactured shoes 60.
  • the upper semi-finished product 10 provided in step 1 may further utilize other processing operations (such as adhesive bonding) to include an insole (not shown), a midsole 51, and a substrate 50 of the shoe.
  • the outsole 52 is integrally combined to form a shoe semi-finished product 60b having a shoe shape as shown in FIG. 12, wherein at least one of the bottom surface of the outsole 52 (including a side edge portion extending upward from the bottom surface) is further provided.
  • the groove 521, the shape of the groove 521 and its position on the bottom surface of the outsole 52 are not limited, and may be designed as needed, and are provided on the bottom surface of the outsole 52 as shown in FIGS. 13 and 14.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Disclosed are a shoe vamp (10a) having a three-dimensional decorative pattern of polyurethane (PU) (20), a preparation method therefor and a shoe (60) made therefrom, wherein a semi-finished shoe vamp product (10) is firstly provided, and the semi-finished shoe vamp product (10) is formed into the shape of a shoe vamp and may be subjected to a processing operation to combine all or part of a substrate (50) in advance; then, at least one PU decorative unit (40) is printed on the surface of the semi-finished shoe vamp product (10), with the PU (20) acting as a 3D printing material, by using at least one 3D printing device (30), wherein the PU decorative unit (40) can, according to requirements, form a variety of diverse decorative patterns and further has a reinforcing effect with regard to the structural strength of the shoe vamp; hardening is then carried out to complete a shoe vamp (10a) having a decorative pattern of PU (20); and a shoe (60) is further made using the shoe vamp (10a). Thus, the appearance of the shoe (60) can be diversified, and the cost expenditure and trouble of setting up forming moulds necessary for various semi-finished shoe vamp products or PU decorative units in the prior art can be avoided, thereby improving the processing efficiency of the shoe vamp and shoe.

Description

具聚氨酯立体装饰图案的鞋面及其制法以及所制成的鞋子Upper with polyurethane three-dimensional decorative pattern and its preparation method and made shoes 技术领域Technical field
本发明有关一种具聚氨酯(PU)立体装饰图案的鞋面及其制法以及所制成的鞋子，尤指一种以聚氨酯(PU)当3D打印材而利用3D打印方式以在一鞋面半成品的表面上打印成型至少一PU装饰单元，用以使鞋面及所制成的鞋子具有各种多样化立体装饰图案。The invention relates to an upper with a polyurethane (PU) three-dimensional decorative pattern and a preparation method thereof, and a shoe made thereof, in particular, a polyurethane (PU) as a 3D printing material and a 3D printing method on an upper At least one PU decorative unit is printed on the surface of the semi-finished product for the shoe upper and the finished shoe to have various diversified three-dimensional decorative patterns.
背景技术Background technique
3D打印技术及其应用目前极为风行，相关的现有技术包含US 9,538,738、US 9,522,522、US 9,460,557、US 9,453,142等；又由网络可知，多家大鞋厂如NIKE、ADIDAS、Reebok等最近都投入3D列印制鞋的研发，看重的就是可节省不少成本，例如以往打造一双鞋子的原型，须要12名技师且制作时间须4至6星期，若改成3D打印，只须2名技师就能操作，且3D打印比一般生产线更省时，可大幅缩短工作时间。3D printing technology and its application are currently very popular. The related prior art includes US 9,538,738, US 9,522,522, US 9,460,557, US 9,453,142, etc. It is also known from the network that many large shoe factories such as NIKE, ADIDAS, Reebok, etc. have recently invested in 3D. The development of printing shoes is worth noting. For example, the prototype of a pair of shoes used in the past requires 12 technicians and the production time is 4 to 6 weeks. If it is changed to 3D printing, only 2 technicians can Operation, and 3D printing is more time-saving than the average production line, can significantly reduce working hours.
在目前的制鞋领域中，虽然已存在一些利用3D打印技术来设计并制作一鞋子的先前技术，但目前的3D列印制鞋技术较偏向于制造高单价的客制化(custom-made)专属鞋子如高跟鞋或特殊用鞋，若要量产化制作非高单价的一般鞋子如慢跑鞋、各种球类运动鞋等，因为须同时顾虑到3D打印材、3D打印操作方式、量产化速度、鞋子功能(如配合运动的强度)、制作成本、或市场竞争力等多面向，因此目前尚未见有成熟的3D列印制鞋技术，尤其是使用于制作非高单价的一般运动鞋。In the current field of footwear, although there have been some prior art techniques for designing and making a shoe using 3D printing technology, the current 3D printing shoe technology is more inclined to manufacture a high unit price of custom-made. Exclusive shoes such as high-heeled shoes or special shoes, if you want to mass-produce non-high-priced general shoes such as jogging shoes, all kinds of ball sports shoes, etc., because you must also worry about 3D printing materials, 3D printing operation mode, mass production Speed, shoe function (such as the intensity of sports), production costs, or market competitiveness, etc., so there is no mature 3D printing technology, especially for the production of non-high-priced general sports shoes.
因此，在3D列印制鞋技术领域中，尤其是制作非高单价的一般运动鞋，如何兼顾及满足3D打印材、3D打印操作方式、量产化速度、鞋子功能(如配合运动的强度)、制作成本、或市场竞争力等多面向条件，此乃本发明主要解决的课题，本发明即针对上述课题提供最有效且最有利的解决方案。Therefore, in the field of 3D printing and footwear technology, especially for the production of non-high-priced general sports shoes, how to balance the 3D printing materials, 3D printing operation mode, mass production speed, and shoe functions (such as the intensity of the exercise) The production cost, the market competitiveness, and the like are many conditions, which are the main problems to be solved by the present invention, and the present invention provides the most effective and advantageous solution to the above problems.
发明内容Summary of the invention
本发明主要目的乃在于提供一种具聚氨酯(PU)立体装饰图案的鞋面及其制法以及所制成的鞋子，其中该制法包含下列步骤：提供一鞋面半成品，该鞋 面半成品是形成而具有一鞋面形状；利用至少一3D打印装置，并以PU作为3D打印材供能由该3D打印装置所设的喷头喷出以进行3D打印；利用上述的3D打印方式，在该鞋面半成品的表面上打印成型至少一PU装饰单元，该PU装饰单元可依图案设计需要以形成各种多样化装饰图案；再进行硬化以完成一具PU立体装饰图案的鞋面；藉此可增加鞋子的外观装饰图案的多样化，并提升该鞋面及所制成的鞋子的工艺效率及市场竞争力。The main object of the present invention is to provide an upper having a polyurethane (PU) three-dimensional decorative pattern, a method for manufacturing the same, and a manufactured shoe, wherein the method comprises the steps of: providing a shoe upper semi-finished product, the shoe The semi-finished product is formed to have an upper shape; the at least one 3D printing device is used, and the PU is used as a 3D printing material to be ejected by the nozzle provided by the 3D printing device for 3D printing; by using the above 3D printing method, Printing at least one PU decorative unit on the surface of the upper semi-finished product, the PU decorative unit can be designed according to the pattern to form various diversified decorative patterns; and then hardening to complete a PU three-dimensional decorative pattern upper; This can increase the variety of decorative patterns of the shoes, and improve the process efficiency and market competitiveness of the shoes and the shoes made.
在本发明中，用以作为3D打印材的PU包含：二液型PU(two components PU)、湿气硬化单液型PU(moisture curable one component PU)、热塑型PU(TPU，thermoplastic PU)，其中二液型PU是把反应迟缓的第一液在临使用前再用第二液加以混合；其中湿气硬化单液型PU是在3D打印成型之后再与空气中水分反应而硬化；其中热塑型PU(TPU)是先加热形成熔融状态再由3D打印装置的喷头喷出以进行打印。In the present invention, the PU used as the 3D printing material includes: a two-component PU (two components PU), a moisture curable one component PU, and a thermoplastic PU (TPU). , wherein the two-liquid type PU is to mix the first liquid which is slow in reaction, and then mix with the second liquid before use; wherein the moisture-hardened single-liquid type PU is hardened by reacting with moisture in the air after 3D printing; The thermoplastic PU (TPU) is first heated to form a molten state and then ejected by a head of a 3D printing apparatus for printing.
在本发明一实施例中，当以二液型PU作为3D打印材时，其是将第一液如多氰酸酯类及第二液如多醇类，在临使用前混合，如把第一液及第二液引导至设在3D打印装置的喷头(喷嘴)之前的容室中供进行均匀混合，再使混合后的二液型PU在硬化之前由喷头喷出以打印在该鞋面半成品的表面上。In an embodiment of the present invention, when the two-component PU is used as the 3D printing material, the first liquid such as polycyanate and the second liquid such as polyol are mixed before use, such as One liquid and the second liquid are guided to a chamber provided before the nozzle (nozzle) of the 3D printing device for uniform mixing, and then the mixed two-liquid type PU is ejected from the head before being hardened to be printed on the upper. On the surface of the semi-finished product.
在本发明一实施例中，该至少一3D打印装置所设的喷头得具有不同的喷口尺寸，供在打印工艺中得选择适当的喷口尺寸以进行打印作业，藉以增进3D打印的工作效率。In an embodiment of the invention, the nozzles provided in the at least one 3D printing device have different nozzle sizes for selecting a suitable nozzle size for printing operations in the printing process, thereby improving the working efficiency of the 3D printing.
在本发明一实施例中，该鞋面半成品摊平在3D打印装置的工作台平面上，使3D打印装置的喷头能快速地将PU打印在该鞋面半成品的表面上。In an embodiment of the invention, the upper semi-finished product is flattened on the table level of the 3D printing device, so that the nozzle of the 3D printing device can quickly print the PU on the surface of the upper semi-finished product.
在本发明一实施例中，该鞋面半成品进一步利用本发明所使用的3D打印装置而直接以3D打印方式打印成型，藉此避免现有制鞋工艺在制造鞋面半成品时须先制作一鞋面成型模具的制作成本及后续修除鞋面半成品毛边的加工成本。In an embodiment of the present invention, the upper semi-finished product is further printed by 3D printing by using the 3D printing device used in the present invention, thereby avoiding the prior shoe making process to first make a shoe when manufacturing the upper semi-finished product. The manufacturing cost of the face forming mold and the subsequent processing cost of repairing the raw edge of the upper half of the shoe.
在本发明一实施例中，该鞋面半成品进一步先经加工作业以与鞋子的底材如内底、中底、外底的全部或其中一部分组合成一体，藉以构成一已具有鞋子形状的鞋子半成品，再使该鞋子半成品架设在可转动的治具上，以使该鞋子半成品得相对于3D打印装置的喷头进行转动，使喷头能快速地将PU打印在该鞋面半成品的表面上。In an embodiment of the present invention, the upper semi-finished product is further processed in advance to be integrated with all or a part of the bottom material, the midsole, and the outsole of the shoe to form a shoe having the shape of a shoe. The semi-finished product is then placed on the rotatable jig to make the semi-finished product of the shoe rotate relative to the nozzle of the 3D printing device, so that the sprinkler can quickly print the PU on the surface of the upper semi-finished product.
在本发明一实施例中，该鞋面半成品先与鞋子的底材包含内底、中底、外底全部组合成一体以构成一已具有鞋子形状的鞋子半成品，并进一步在该外底 的底面上设置至少一凹槽，用以使3D打印装置的喷头能将PU分别打印在该鞋子半成品的鞋面的表面上及该至少一凹槽内，供可在该鞋子的鞋面的表面上及该外底的底面上能各成型具有至少一PU装饰单元。In an embodiment of the present invention, the upper semi-finished product is first combined with the bottom material of the shoe including the inner bottom, the middle bottom and the outer bottom to form a shoe semi-finished product having a shoe shape, and further in the outsole. Providing at least one groove on the bottom surface for enabling the nozzle of the 3D printing device to respectively print the PU on the surface of the upper of the shoe semi-finished product and the at least one groove for the surface of the upper of the shoe At least one PU decorative unit can be formed on the bottom surface of the upper and the outsole.
附图说明DRAWINGS
图1为本发明一实施例中3D打印装置的喷头在一鞋面半成品的表面上进行打印作业的立体示意图。1 is a perspective view showing a print operation of a nozzle of a 3D printing apparatus on a surface of a shoe upper semi-finished product according to an embodiment of the present invention.
图2为图1所示鞋面半成品在3D打印完成后的立体示意图。2 is a perspective view of the upper semi-finished product shown in FIG. 1 after 3D printing is completed.
图3为图2中打印完成后的鞋面半成品进一步与鞋子底材组合的立体分解示意图。FIG. 3 is a perspective exploded view of the shoe upper semi-finished product after the printing is completed in FIG. 2 and further combined with the shoe substrate.
图4为图3中组合完成的鞋子立体示意图。4 is a perspective view of the shoe assembled in combination in FIG.
图5为本发明中鞋面半成品先与鞋子底材(中底)组合的立体分解示意图。Fig. 5 is a perspective exploded view showing the combination of the upper semi-finished product and the shoe substrate (midfield) in the present invention.
图6为图5中鞋面半成品与鞋子底材组合形成的鞋子半成品的立体示意图。6 is a perspective view of the shoe semi-finished product formed by combining the upper semi-finished product and the shoe bottom material of FIG. 5.
图7为图6所示的鞋子半成品在进行3D打印的一侧面示意图。Figure 7 is a side elevational view of the shoe semi-finished product shown in Figure 6 in 3D printing.
图8为图7所示鞋子半成品在3D打印完成的一实施例立体示意图。FIG. 8 is a perspective view showing an embodiment of the shoe semi-finished product shown in FIG. 7 in 3D printing.
图9为图8所示3D打印完成的鞋子半成品再与鞋子底材(外底)组合的立体分解示意图。FIG. 9 is a perspective exploded view showing the combination of the shoe semi-finished product completed by the 3D printing shown in FIG. 8 and the shoe substrate (outsole).
图10为图9所示鞋子半成品与鞋子底材(外底)组合后的立体示意图。Figure 10 is a perspective view of the shoe semi-finished product shown in Figure 9 combined with the shoe substrate (outsole).
图11为本发明中鞋面半成品先与鞋子底材(中底、外底)组合的立体分解示意图。Figure 11 is a perspective exploded view showing the combination of the shoe upper semi-finished product and the shoe substrate (sole, outsole) in the present invention.
图12为图11中组合后的鞋子半成品的立体组合示意图。FIG. 12 is a schematic perspective view of the combined semi-finished shoes of FIG. 11 .
图13为图12所示的鞋子半成品在鞋面上进行3D打印的侧面示意图。Figure 13 is a side elevational view of the shoe semi-finished product of Figure 12 for 3D printing on the upper.
图14为图12所示鞋子半成品在外底的底面上进行3D打印的立体示意图。Figure 14 is a perspective view showing the 3D printing of the semi-finished shoe of Figure 12 on the bottom surface of the outsole.
图15为图14中在外底的底面上进行3D打印的立体(底视角)示意图。Figure 15 is a perspective view of the three-dimensional (bottom viewing angle) of Figure 3 on the bottom surface of the outsole.
图16为图15中3D打印完成后的鞋子立体(上视角)示意图。Figure 16 is a perspective view of the three-dimensional (upper viewing angle) of the shoe after the 3D printing in Figure 15 is completed.
附图标记说明：10-鞋面半成品；10a-鞋面；11-鞋带孔；20-聚氨酯(PU)；20a-二液型PU；21-第一液；22-第二液；30-3D打印装置；31-喷头；32-容室；33-输送管；40-PU装饰单元；40a-浮凸图形；40b-浮凸图形；40c-浮凸线条；40d-浮凸线条；41-浮凸图形；50-底材；51-中底；52-外底；521-凹槽；60-鞋子；60a-鞋子半成品；60b-鞋子半成品。 DESCRIPTION OF REFERENCE NUMERALS: 10--shoe semi-finished product; 10a-shoe upper; 11-lace hole; 20-polyurethane (PU); 20a-two-liquid type PU; 21-first liquid; 22-second liquid; 3D printing device; 31-nozzle; 32-capacity chamber; 33-transport tube; 40-PU decorative unit; 40a-embossed pattern; 40b-embossed pattern; 40c-embossed line; 40d-embossed line; Embossed graphics; 50-substrate; 51-mids; 52-outsole; 521-grooves; 60-shoes; 60a-shoe semi-finished products; 60b-shoe semi-finished products.
具体实施方式detailed description
为使本发明更加明确详实，兹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；其中在图式中各部件的尺寸并非依实际比例绘示。The structure of the present invention and its technical features are as described in detail below with reference to the accompanying drawings, in which FIG.
参考图1、图2所示，本发明提供一种具聚氨酯(PU)立体装饰图案的鞋面及其制法以及所制成的鞋子，其中该具聚氨酯立体装饰图案的鞋面如图2所示，其包含：一鞋面半成品10，其以鞋面材料制成而具有鞋面形状；及至少一PU装饰单元40，其利用至少一3D打印装置30且以聚氨酯(PU)20作为打印材，使通过3D打印装置30的喷头31喷出该聚氨酯20以打印在该鞋面半成品10的表面上并结合成一体而形成。Referring to FIG. 1 and FIG. 2, the present invention provides an upper for a polyurethane (PU) three-dimensional decorative pattern, a method for manufacturing the same, and a manufactured shoe, wherein the upper of the polyurethane three-dimensional decorative pattern is as shown in FIG. Illustrated, comprising: a upper semi-finished product 10 made of an upper material having an upper shape; and at least one PU decorative unit 40 using at least one 3D printing device 30 and using polyurethane (PU) 20 as a printing material The polyurethane 20 is ejected through the head 31 of the 3D printing device 30 to be printed on the surface of the upper semi-finished product 10 and integrated into one body.
本发明的具聚氨酯(PU)立体装饰图案的鞋面的制法包含下列步骤：The method for manufacturing an upper of a polyurethane (PU) three-dimensional decorative pattern of the present invention comprises the following steps:
步骤1：提供一鞋面半成品10。该鞋面半成品10可利用现有的制鞋工艺制成但不限制，例如利用合成皮革如聚氨酯(PU)、氯乙烯(PVC)、或其组合物当作鞋面材料，再藉成型加工作业，如先制作一鞋面成型模具，再藉该鞋面成型模具来进行浇注成型以形成一鞋面雏版，再修除鞋面雏版的毛边以完成一具有鞋面形状的鞋面半成品10如图1所示；其中，鞋面半成品10的形状包含如造型或鞋带孔11的位置及数目等并不限制，可依鞋面设计需要而做出不同形状变化。Step 1: Provide a shoe upper semi-finished product 10. The upper semi-finished product 10 can be made by using the existing shoe-making process, but is not limited, for example, using synthetic leather such as polyurethane (PU), vinyl chloride (PVC), or a combination thereof as the upper material, and then molding processing work. For example, an upper molding die is first prepared, and then the upper molding die is used for casting to form a vamp, and the embossing of the upper veneer is repaired to complete an upper semi-finished product having an upper shape. As shown in FIG. 1 , wherein the shape of the upper semi-finished product 10 includes, for example, the position and number of the shape or the lace hole 11 is not limited, and different shape changes may be made according to the design of the upper.
步骤2：利用至少一3D打印装置30，并以聚氨酯(PU)20作为3D打印材。该PU包含：二液型PU(two components PU)、湿气硬化单液型PU(moisture curable one component PU)、热塑型PU(TPU，thermoplastic PU)。在此以二液型PU作为3D打印材为例说明但非用以限制本发明，例如把反应迟缓的第一液21如多氰酸酯类但不限制，用第二液22如多醇类但不限制，在临使用前混合，在此更以图1为例说明但不限制，第一液21及第二液22被分别以输送管33送至一设在3D打印装置30的喷头(喷嘴)31之前的容室32中以进行均匀混合，混合方式可以在该容室32内部设置搅拌机构(图未示)但不限制；再使混合后的二液型PU20a在混合硬化之前由喷头31喷出以3D打印在该鞋面半成品10的表面上。由于3D打印装置30中各部件的结构及其功能，皆能利用现有技术来完成，故3D打印装置30及其各部件如喷头31、容室32(或内部所设的搅拌机构)、输送管33等的详细结构及其功能，在此不再赘述。Step 2: At least one 3D printing device 30 is used, and polyurethane (PU) 20 is used as the 3D printing material. The PU includes a two-component PU (two components PU), a moisture curable one component PU, and a thermoplastic PU (TPU). Here, the two-liquid type PU is used as a 3D printing material as an example, but is not intended to limit the present invention. For example, the first liquid 21 which is slow to react, such as polycyanate, is not limited, and the second liquid 22 such as a polyol is used. However, without limitation, the mixing is performed immediately before use, and the first liquid 21 and the second liquid 22 are respectively sent by the conveying pipe 33 to a nozzle provided in the 3D printing device 30 (for example, but not limited to FIG. 1). The chamber 32 before the nozzle 31 is uniformly mixed. In the mixing mode, a stirring mechanism (not shown) may be disposed inside the chamber 32, but is not limited; and the mixed two-component PU20a is used by the nozzle before the mixing and hardening. 31 is ejected in 3D on the surface of the upper semifinished product 10. Since the structure and functions of the components in the 3D printing device 30 can be completed by the prior art, the 3D printing device 30 and its components such as the shower head 31, the chamber 32 (or the internal stirring mechanism), and the transport The detailed structure of the tube 33 and the like and its functions will not be described herein.
步骤3：利用3D打印方式，在该鞋面半成品10的表面上打印成型出至少 一PU装饰单元40。该PU装饰单元40可依预先的图案设计以形成各种多样化装饰图案，如图2中所示的浮凸图形40a、40b或浮凸线条40c、40d等但不限制，甚至可形成兼具鞋面强度补强功能的浮凸图形，如图2中所示的浮凸图形41即形成在该鞋面半成品10的鞋带孔11的周围位置，藉以增进该鞋带孔11的拉扯强度。Step 3: using a 3D printing method to print at least the surface of the upper semi-finished product 10 A PU decoration unit 40. The PU decorative unit 40 can be designed according to a pre-pattern to form various diversified decorative patterns, such as the embossed patterns 40a, 40b or the embossed lines 40c, 40d shown in FIG. 2, but not limited thereto, and even form a combination The embossed pattern of the upper strength reinforcing function, such as the embossed pattern 41 shown in FIG. 2, is formed at a position around the lace hole 11 of the upper semi-finished product 10, thereby enhancing the pulling strength of the lace hole 11.
步骤4：再进行硬化以完成一具聚氨酯立体装饰图案的鞋面10a如图2所示。Step 4: The upper 10a of the polyurethane three-dimensional decorative pattern is further hardened to be completed as shown in FIG.
此外，再利用步骤4所制成的鞋面10a来进行后续加工作业，如使鞋面10a与鞋子的底材50安装组合成一体的加工作业如图3所示，其中该鞋子的底材50一般是包含一内底(图未示)、一中底51及一外底52但不限制，如此即完成一鞋子60如图4所示，因此本发明能提升所制成的鞋子60的市场竞争力。In addition, the upper surface 10a made in the step 4 is used for subsequent processing operations, such as the processing operation of integrally assembling the upper 10a with the bottom material 50 of the shoe as shown in FIG. 3, wherein the substrate 50 of the shoe Generally, an insole (not shown), a midsole 51 and an outsole 52 are included, but are not limited, so that a shoe 60 is completed as shown in FIG. 4, so that the present invention can enhance the market of the manufactured shoe 60. Competitiveness.
在本发明一实施例中，该3D打印装置30得设有多个具不同喷口尺寸的喷头31，如图1、图2所示设有二喷头31但不限制，其中各喷头31通过计算机程序设计而可分别各自作动或同步作动。此外，各喷头31更可被设计具有不同的喷口尺寸，供在3D打印工艺中能选择适当喷口尺寸的喷头31以针对不同的PU装饰单元40来进行打印成型作业，藉以增进各喷头31的工作效率。In an embodiment of the present invention, the 3D printing device 30 is provided with a plurality of nozzles 31 having different nozzle sizes. As shown in FIG. 1 and FIG. 2, two nozzles 31 are provided, but not limited thereto, wherein each nozzle 31 is passed through a computer program. Designed to operate separately or simultaneously. In addition, each of the nozzles 31 can be designed to have different nozzle sizes for selecting a nozzle size 31 of a suitable nozzle size in a 3D printing process to perform a printing operation for different PU decoration units 40, thereby enhancing the operation of each nozzle 31. effectiveness.
参考图1、图2，该鞋面半成品10摊平在3D打印装置30的工作台平面上(图未示)，使3D打印装置30的喷头31能将打印材PU20快速地打印在该鞋面半成品10的表面上。Referring to Figures 1 and 2, the upper semi-finished product 10 is flattened on a table plane (not shown) of the 3D printing device 30, so that the head 31 of the 3D printing device 30 can quickly print the printed material PU20 on the upper. On the surface of the semi-finished product 10.
此外，为提升本发明的鞋面10a的工艺效率，步骤1中所提供的鞋面半成品10进一步可利用本发明所使用的3D打印装置30而直接以3D打印方式来打印成型，即利用3D打印装置30的喷头(喷嘴)31以打印成型该鞋面半成品10(参考图1中右边的喷头31所示)，藉此节省现有制鞋工艺须先制作一鞋面成型模具的制作成本及后续修除毛边的加工成本。In addition, in order to improve the process efficiency of the upper 10a of the present invention, the upper semi-finished product 10 provided in the step 1 can be directly printed by 3D printing using the 3D printing device 30 used in the present invention, that is, using 3D printing. The nozzle (nozzle) 31 of the device 30 is used for printing and molding the upper semi-finished product 10 (refer to the nozzle 31 on the right side in FIG. 1), thereby saving the manufacturing cost and the subsequent production of an upper molding die for the existing shoe-making process. Repair the processing cost of the burrs.
参考图5，在步骤1所提供的鞋面半成品10进一步可先利用其他的加工作业(如黏着压合作业)以与鞋子的底材50中的全部或一部分，如内底(图未示)、中底51或其组合但不限制，组合成一体，藉以先构成一已具有鞋面半成品10及鞋子雏形的鞋子半成品60a如图6所示；进一步再藉相配合设计的治具或夹具(图未示)，例如将该鞋子半成品60a套设在可转动的治具上，使该鞋子半成品60a得相对于3D打印装置30的喷头31进行角度调整的转动如图7中箭头A所示，藉此使3D打印装置30的喷头31能在该鞋子半成品60a的鞋面半成品10的表面上进行3D打印作业如图7所示，使打印材PU20得在鞋面半成品10 的表面上打印成型出至少一PU装饰单元40如图8所示。Referring to FIG. 5, the upper semi-finished product 10 provided in step 1 may further utilize other processing operations (such as adhesive bonding) to match all or a portion of the substrate 50 of the shoe, such as an insole (not shown). The midsole 51 or a combination thereof, but not limited thereto, is combined to form a shoe semi-finished product 60a having a shoe upper semi-finished product 10 and a shoe prototype as shown in FIG. 6; further, a jig or jig designed to match the design ( For example, the shoe semi-finished product 60a is sleeved on the rotatable jig, so that the shoe semi-finished product 60a is angularly adjusted relative to the head 31 of the 3D printing device 30, as indicated by the arrow A in FIG. Thereby, the head 31 of the 3D printing apparatus 30 can perform a 3D printing job on the surface of the upper semi-finished product 10 of the shoe semi-finished product 60a as shown in FIG. 7, so that the printing material PU20 is obtained in the upper semi-finished product 10 At least one PU decorative unit 40 is printed on the surface as shown in FIG.
此外，再将已具有至少一PU装饰单元40的鞋子半成品60a进行后续加工作业，如进行鞋子半成品60a与底材50中的外底52(但不限制)组合成一体的加工作业如图9所示，如此即完成一鞋子60如图10所示，由于该鞋子60的鞋面上打印形成有至少一PU装饰单元40，故该鞋子60与现有鞋子不同且更具变化，因此本发明确实能提升所制成的鞋子60的市场竞争力。In addition, the shoe semi-finished product 60a, which already has at least one PU decorative unit 40, is subjected to subsequent processing operations, such as processing in which the shoe semi-finished product 60a and the outsole 52 in the substrate 50 are combined (but not limited). Thus, the shoe 60 is completed as shown in FIG. 10. Since at least one PU decorative unit 40 is formed on the upper surface of the shoe 60, the shoe 60 is different from the existing shoe and is more varied, so the present invention does It can enhance the market competitiveness of the manufactured shoes 60.
参考图11，在步骤1所提供的鞋面半成品10进一步可先利用其他的加工作业(如黏着压合作业)以与鞋子的底材50如包含内底(图未示)、中底51、外底52全部组合成一体，藉以构成一已具有鞋子形状的鞋子半成品60b如图12所示，其中在该外底52的底面上(包含由底面向上延伸的侧缘部分)进一步设有至少一凹槽521，该凹槽521的形状及其在该外底52的底面上位置并不限制，其可随需要而变化设计，如图13、图14所示在该外底52的底面上设有多条不规则的横向凹槽521但不限制；进一步，再藉相配合设计的治具或夹具(图未示)，例如将该鞋子半成品60b套设在可转动的治具上(图未示)，以使该鞋子半成品60b得相对于该喷头31进行角度调整的转动如图13中箭头B所示，藉此使喷头31能在该鞋子半成品60b中的鞋面半成品10的表面上进行3D打印作业，用以在该鞋面半成品10的表面上打印形成至少一PU装饰单元40，在此称为第一PU装饰单元(40)。此外，该喷头31进一步能在该鞋子半成品60b中的外底52的底面上进行3D打印作业如图14所示，用以在该外底52的底面的各凹槽521内打印形成至少一PU装饰单元70如图14-15所示，在此称为第二PU装饰单元(70)；其中，当第二PU装饰单元70的打印成型厚度(高度)被设计为略高于(略凸出于)该外底52的底面时，第二PU装饰单元70不但具有装饰功能且更具有防滑功能。Referring to FIG. 11, the upper semi-finished product 10 provided in step 1 may further utilize other processing operations (such as adhesive bonding) to include an insole (not shown), a midsole 51, and a substrate 50 of the shoe. The outsole 52 is integrally combined to form a shoe semi-finished product 60b having a shoe shape as shown in FIG. 12, wherein at least one of the bottom surface of the outsole 52 (including a side edge portion extending upward from the bottom surface) is further provided. The groove 521, the shape of the groove 521 and its position on the bottom surface of the outsole 52 are not limited, and may be designed as needed, and are provided on the bottom surface of the outsole 52 as shown in FIGS. 13 and 14. There are a plurality of irregular lateral grooves 521 but not limited; further, by means of a matching fixture or fixture (not shown), for example, the shoe semi-finished product 60b is sleeved on a rotatable fixture (not shown) The rotation of the shoe semi-finished product 60b relative to the head 31 is shown in Fig. 13 as indicated by the arrow B in Fig. 13, whereby the head 31 can be made on the surface of the upper semifinished product 10 in the shoe semifinished product 60b. 3D print job for printing on the surface of the upper semifinished product 10 At least one PU trim unit 40 is formed, referred to herein as a first PU trim unit (40). In addition, the head 31 can further perform a 3D printing operation on the bottom surface of the outsole 52 in the semi-finished product 60b of the shoe, as shown in FIG. 14, for printing at least one PU in each groove 521 of the bottom surface of the outsole 52. The decorative unit 70 is shown in FIGS. 14-15, here referred to as a second PU decorative unit (70); wherein, when the printing thickness (height) of the second PU decorative unit 70 is designed to be slightly higher (slightly convex) When the bottom surface of the outsole 52 is used, the second PU decorative unit 70 not only has a decorative function but also has a non-slip function.
此外，第二PU装饰单元70与第一PU装饰单元40的3D打印作业可以分开进行或连续进行，其中所述的分开进行乃是指喷头31可先在该鞋面半成品10的表面上打印完成全部的第一PU装饰单元40，之后再转动调整角度以使该鞋子半成品60b的外底52的底面朝向喷头31，供喷头31可针对外底52的底面的各凹槽521进行3D打印作业以打印完成全部的第二PU装饰单元70，即第一PU装饰单元40及第二PU装饰单元70是分开打印成型而形成分开状态。而所述的连续进行乃是指喷头31可以在该鞋面半成品10的表面上先打印其中一局部的第一PU装饰单元40如图13所示(或包含第二PU装饰单元70的侧缘部 分)，此时再转动调整角度以使该鞋子半成品述60b的外底52的底面朝向喷头31，以使喷头31可连续地再针对该外底52的底面上进行3D打印作业以打印一局部的第二PU装饰单元70如图14所示，之后又转动调整角度以使该鞋子半成品60b上的鞋面半成品10再朝向喷头31，以使喷头31连续地再针对该鞋面半成品10的表面上进行3D打印作业以再打印一局部的第一PU装饰单元40(又回到如图13所示)，如此交叉地且连续地进行3D打印作业以完成全部的第一PU装饰单元40及第二PU装饰单元70；也就是，第一PU装饰单元40及第二PU装饰单元70的3D打印作业得通过该鞋子半成品60b的转动调整角度而交叉地且连续地进行打印作业，而打印完成后的第一PU装饰单元40及第二PU装饰单元70之间因为连续地且交叉地打印成型，以致有局部是形成连结状态如第15-16图所示；此外，由于第一PU装饰单元40及第二PU装饰单元70之间具有局部的连结状态，故可进一步增进鞋子60的结构强度。In addition, the 3D printing job of the second PU decoration unit 70 and the first PU decoration unit 40 may be performed separately or continuously, wherein the separation process means that the nozzle 31 can be printed on the surface of the upper semi-finished product 10 first. All of the first PU decorative units 40 are then rotated to adjust the angle so that the bottom surface of the outsole 52 of the shoe blank 60b faces the head 31, and the head 31 can perform a 3D printing operation for each groove 521 of the bottom surface of the outsole 52. The entire second PU decorative unit 70, that is, the first PU decorative unit 40 and the second PU decorative unit 70, are printed separately to form a separated state. The continuous operation refers to that the first head PU decorative unit 40 can print a part of the first PU decorative unit 40 on the surface of the upper semi-finished product 10 as shown in FIG. 13 (or include the side edge of the second PU decorative unit 70). Ministry At this time, the adjustment angle is further rotated so that the bottom surface of the outsole 52 of the shoe semi-finished product 60b faces the head 31 so that the head 31 can continuously perform a 3D printing job on the bottom surface of the outsole 52 to print a part. The second PU trim unit 70 is shown in Fig. 14, and then rotated to adjust the angle so that the upper semifinished product 10 on the shoe semifinished product 60b is directed toward the head 31 so that the head 31 is continuously reoriented to the surface of the upper semifinished product 10. Performing a 3D print job to reprint a portion of the first PU decoration unit 40 (again back as shown in FIG. 13), thus performing a 3D print job crosswise and continuously to complete all of the first PU decoration unit 40 and The second PU decoration unit 70; that is, the 3D printing operation of the first PU decoration unit 40 and the second PU decoration unit 70 is performed by the rotation adjustment angle of the shoe semi-finished product 60b, and the printing operation is performed continuously and continuously, and after the printing is completed, Because the first PU decorative unit 40 and the second PU decorative unit 70 are continuously and cross-printed, so that a partial connection state is formed as shown in FIGS. 15-16; in addition, since the first PU decorative unit 40 And Having a coupling state between the local unit 70 PU decoration, it can further increase the structural strength of the shoe 60.
以上说明对本发明而言只是说明性的，而非限制性的，本领域普通技术人员理解，在不脱离以下所附权利要求所限定的精神和范围的情况下，可做出许多修改，变化，或等效，但都将落入本发明的保护范围内。 The above description is intended to be illustrative, and not restrictive, and many modifications and changes may be made without departing from the spirit and scope of the invention. Or equivalent, but all fall within the scope of the present invention.

Claims (13)

  1. 一种具聚氨酯立体装饰图案的鞋面，其特征在于，包含：An upper having a polyurethane three-dimensional decorative pattern, comprising:
    一鞋面半成品，其以鞋面材料制成而具有鞋面形状；及a shoe upper semi-finished product, which is made of an upper material and has an upper shape;
    至少一PU装饰单元，其利用至少一3D打印装置且以聚氨酯作为该3D打印装置的打印材料，使通过3D打印装置的喷头喷出聚氨酯以打印在该鞋面半成品的表面上并结合成一体而形成。At least one PU decorative unit that utilizes at least one 3D printing device and uses polyurethane as a printing material of the 3D printing device to eject the polyurethane through the nozzle of the 3D printing device to be printed on the surface of the upper semi-finished product and integrated into one body. form.
  2. 如权利要求1所述的鞋面，其特征在于，该鞋面半成品进一步利用该3D打印装置且以聚氨酯作为打印材料，使通过该3D打印装置的喷头喷出聚氨酯以打印成型。The upper according to claim 1, wherein the upper semifinished product further utilizes the 3D printing device and uses polyurethane as a printing material to eject polyurethane through the head of the 3D printing device for printing.
  3. 如权利要求1所述的鞋面，其特征在于，该聚氨酯系包含：二液型PU、湿气硬化单液型PU、热塑型PU。The upper according to claim 1, wherein the polyurethane comprises: a two-component PU, a moisture-curing single-liquid PU, and a thermoplastic PU.
  4. 如权利要求1所述的鞋面，其特征在于，当该聚氨酯是以二液型聚氨酯作为打印材时，其中该二液型聚氨酯的第一液及第二液被分别以输送管送至一设在该3D打印装置的喷头之前的容室中以进行均匀混合，再使均匀混合后的二液型PU在混合硬化之前由喷头喷出以进行打印作业。The upper according to claim 1, wherein when the polyurethane is a two-component polyurethane as a printing material, the first liquid and the second liquid of the two-component polyurethane are respectively sent to the conveying tube The chamber is placed in the chamber before the head of the 3D printing device to perform uniform mixing, and the uniformly mixed two-component PU is ejected from the head before the mixing and hardening to perform a printing operation.
  5. 一种鞋子，其特征在于，包含如权利要求1至4中任一项所述的该具聚氨酯立体装饰图案的鞋面。A shoe comprising the upper of the polyurethane three-dimensional decorative pattern according to any one of claims 1 to 4.
  6. 一种具聚氨酯立体装饰图案的鞋面的制法，其特征在于，包含下列步骤：The invention relates to a method for manufacturing an upper with a polyurethane three-dimensional decorative pattern, which comprises the following steps:
    步骤1：提供一鞋面半成品；Step 1: Provide a shoe upper semi-finished product;
    步骤2：利用至少一3D打印装置且以聚氨酯作为打印材；Step 2: using at least one 3D printing device and using polyurethane as a printing material;
    步骤3：利用该3D打印装置的喷头，以3D打印方式在该鞋面半成品的表面上打印成型出至少一PU装饰单元；及Step 3: using the nozzle of the 3D printing device, printing at least one PU decorative unit on the surface of the upper semi-finished product by 3D printing; and
    步骤4：再进行硬化以完成一具聚氨酯立体装饰图案的鞋面。Step 4: Harden again to complete a three-dimensional decorative pattern of polyurethane.
  7. 如权利要求6所述的制法，其特征在于，在该步骤1所提供的鞋面半成品进一步利用该3D打印装置且以聚氨酯作为打印材料，使通过该3D打印装置的喷头喷出该聚氨酯以3D打印成型。The method according to claim 6, wherein the upper semifinished product provided in the step 1 further utilizes the 3D printing device and uses polyurethane as a printing material to eject the polyurethane through the nozzle of the 3D printing device. 3D printing.
  8. 如权利要求6所述的制法，其特征在于，在该步骤4所制成的鞋面进一步进行加工作业以与鞋子的底材组合成一体而完成一鞋子。The method according to claim 6, wherein the upper made in the step 4 is further processed to be integrated with the substrate of the shoe to complete a shoe.
  9. 如权利要求6所述的制法，其特征在于，在步骤1所提供的鞋面半成品 进一步先与鞋子的底材中的一部分组合成一体，藉以先构成一已具有鞋面半成品的鞋子半成品，再使该鞋子半成品能相对于该3D打印装置的喷头进行角度调整的转动，藉此使该3D打印装置的喷头能在该鞋子半成品中的鞋面半成品的表面上进行3D打印作业，使在鞋面半成品的表面上打印形成该PU装饰单元。The method of claim 6 wherein the upper semi-finished product provided in step 1 Further, it is first integrated with a part of the bottom material of the shoe, thereby forming a semi-finished product of the shoe having the semi-finished upper, and then the semi-finished product of the shoe can be angularly adjusted with respect to the nozzle of the 3D printing device, thereby The nozzle of the 3D printing device is capable of performing a 3D printing operation on the surface of the upper semifinished product in the semi-finished product of the shoe, so that the PU decorative unit is formed on the surface of the upper semi-finished product.
  10. 如权利要求6所述的制法，其特征在于，在步骤1所提供的鞋面半成品进一步先与鞋子的底材全部组合成一体，藉以构成一已具有鞋子形状的鞋子半成品，其中在该底材中的外底的底面上进一步设有至少一凹槽；再使该鞋子半成品能相对于该3D打印装置的喷头进行角度调整的转动，使该3D打印装置的喷头能在该鞋子半成品中的鞋面半成品的表面上进行3D打印作业以打印形成第一PU装饰单元，并且能在该鞋子半成品中的外底的底面上进行3D打印作业以使PU打印在该外底的底面的各凹槽内以形成第二PU装饰单元。The method according to claim 6, wherein the upper semi-finished product provided in step 1 is further integrated with the bottom material of the shoe to form a shoe semi-finished product having a shoe shape, wherein Further, at least one groove is further disposed on the bottom surface of the outsole in the material; and the semi-finished product of the shoe can be angularly adjusted relative to the nozzle of the 3D printing device, so that the nozzle of the 3D printing device can be in the semi-finished product of the shoe. Performing a 3D printing job on the surface of the upper semi-finished product to form a first PU decorative unit, and performing a 3D printing job on the bottom surface of the outsole in the semi-finished product of the semi-finished product to cause the PU to print the grooves on the bottom surface of the outsole Internal to form a second PU decorative unit.
  11. 如权利要求10所述的制法，其特征在于，打印在该外底的底面的各凹槽内所形成的第二PU装饰单元的打印成型厚度高于该外底的底面。The method according to claim 10, wherein the printing thickness of the second PU decorative unit formed in each of the grooves of the bottom surface of the outsole is higher than the bottom surface of the outsole.
  12. 如权利要求10所述的制法，其特征在于，第二PU装饰单元的打印作业与第一PU装饰单元的打印作业分开进行或连续进行；The method according to claim 10, wherein the print job of the second PU decoration unit is performed separately or continuously from the print job of the first PU decoration unit;
    其中当第二PU装饰单元与第一PU装饰单元的3D打印作业分开进行时，该3D打印装置的喷头先在该鞋面半成品的表面上打印完成全部第一PU装饰单元，之后再转动调整角度以使该鞋子半成品的外底的底面朝向喷头，供喷头对外底的底面的各凹槽进行3D打印作业以打印完成全部第二PU装饰单元，使第一PU装饰单元及第二PU装饰单元是分开打印成型而形成分开状态；Wherein when the second PU decorative unit is separately performed from the 3D printing job of the first PU decorative unit, the nozzle of the 3D printing device first prints all the first PU decorative units on the surface of the upper semi-finished product, and then rotates the adjustment angle. So that the bottom surface of the outsole of the shoe semi-finished product faces the head, and the nozzles of the bottom surface of the nozzle are subjected to a 3D printing operation to complete all the second PU decorative units, so that the first PU decorative unit and the second PU decorative unit are Separate printing to form a separate state;
    其中当第二PU装饰单元与第一PU装饰单元的3D打印作业连续进行时，该3D打印装置的喷头在该鞋面半成品的表面上先打印其中一局部的第一PU装饰单元，此时转动调整角度以使该鞋子半成品的外底的底面朝向喷头，以使喷头能连续地再针对该外底的底面进行3D打印作业以打印一局部的第二PU装饰单元，之后又转动调整角度以使该鞋子半成品中的该鞋面半成品再朝向喷头，使喷头能连续地再针对该鞋面半成品的表面上进行3D打印作业以再打印另一局部的第一PU装饰单元，藉此第一PU装饰单元及第二PU装饰单元的3D的打印作业通过该鞋子半成品的转动调整角度而交叉地且连续地进行打印作业，使打印完成后的第一PU装饰单元及第二PU装饰单元之间会有局部形成连结状态。Wherein, when the second PU decoration unit and the first PU decoration unit perform the 3D printing job continuously, the nozzle of the 3D printing device first prints a part of the first PU decorative unit on the surface of the upper semi-finished product, and then rotates Adjusting the angle so that the bottom surface of the outsole of the semi-finished product of the shoe faces the head so that the head can continuously perform a 3D printing operation on the bottom surface of the outsole to print a partial second PU decorative unit, and then rotate the adjustment angle so that The upper half of the shoe semi-finished product is further oriented toward the spray head, so that the spray head can continuously perform a 3D printing operation on the surface of the upper semi-finished product to reprint another partial first PU decorative unit, thereby the first PU decoration The 3D printing operation of the unit and the second PU decorative unit cross-processes and continuously performs a printing operation by the rotation adjustment angle of the shoe semi-finished product, so that there is a relationship between the first PU decorative unit and the second PU decorative unit after the printing is completed. Partially forming a connected state.
  13. 一种鞋子，其特征在于，其是通过如权利要求6至12中任一项所述的 具聚氨酯立体装饰图案的鞋面的制法来制造的。 A shoe characterized by being as claimed in any one of claims 6 to 12 It is made by the method of making a vamp with a three-dimensional decorative pattern of polyurethane.
PCT/CN2017/000269 2017-03-31 2017-03-31 Shoe vamp having three-dimensional decorative pattern of polyurethane, preparation method therefor and shoe made therefrom WO2018176173A1 (en)

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CN111688208A (en) * 2020-06-10 2020-09-22 陈国军 Welding process of planar 3D printing part and cloth, artificial leather or genuine leather

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CN104428126A (en) * 2012-07-19 2015-03-18 耐克创新有限合伙公司 Direct printing to fabric
CN104812555A (en) * 2012-07-19 2015-07-29 耐克创新有限合伙公司 Footwear assembly method with 3d printing

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CN104428126A (en) * 2012-07-19 2015-03-18 耐克创新有限合伙公司 Direct printing to fabric
CN104812555A (en) * 2012-07-19 2015-07-29 耐克创新有限合伙公司 Footwear assembly method with 3d printing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111688208A (en) * 2020-06-10 2020-09-22 陈国军 Welding process of planar 3D printing part and cloth, artificial leather or genuine leather

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