U.S. patent application number 15/205572 was filed with the patent office on 2018-01-11 for method of making a moisture-permeable and waterproof shoe.
The applicant listed for this patent is HUGE DEVELOPMENT LIMITED, SHUANG BANG INDUSTRIAL CORP.. Invention is credited to Chung-Tang CHANG, Ho-Pin LIN.
Application Number | 20180007999 15/205572 |
Document ID | / |
Family ID | 60892733 |
Filed Date | 2018-01-11 |
United States Patent
Application |
20180007999 |
Kind Code |
A1 |
CHANG; Chung-Tang ; et
al. |
January 11, 2018 |
METHOD OF MAKING A MOISTURE-PERMEABLE AND WATERPROOF SHOE
Abstract
A method of making a moisture-permeable and waterproof shoe
includes: forming a vamp and a bottom liner from a fabric laminate
and connecting the vamp and the bottom liner to form a
semi-finished shoe with seams; disposing a shoe last in a
foot-receiving space provided in the semi-finished shoe; coating an
outer surface of the semi-finished shoe with a resin material and
curing the resin material to form a moisture-permeable and
waterproof resin layer on the outer surface of the semi-finished
shoe and to cover the seams; attaching a shoe sole to the bottom
liner; and removing the shoe last from the receiving space.
Inventors: |
CHANG; Chung-Tang; (Nantou
City, TW) ; LIN; Ho-Pin; (Taichung City, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SHUANG BANG INDUSTRIAL CORP.
HUGE DEVELOPMENT LIMITED |
Nantou City
Hong Kong |
|
TW
CN |
|
|
Family ID: |
60892733 |
Appl. No.: |
15/205572 |
Filed: |
July 8, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A43B 23/022 20130101;
A43D 95/10 20130101; A43B 23/0205 20130101; B29D 35/0054 20130101;
A43B 13/32 20130101; A43D 3/02 20130101; A43B 1/0072 20130101; A43B
7/125 20130101; A43B 23/026 20130101 |
International
Class: |
A43B 7/12 20060101
A43B007/12; A43B 23/02 20060101 A43B023/02; A43B 13/32 20060101
A43B013/32; A43D 95/10 20060101 A43D095/10; A43D 3/02 20060101
A43D003/02 |
Claims
1. A method of making a moisture-permeable and waterproof shoe,
comprising: forming a vamp and a bottom liner from a fabric
laminate and connecting the vamp and the bottom liner to form a
semi-finished shoe with seams; disposing a shoe last in a
foot-receiving space provided in the semi-finished shoe; coating an
outer surface of the semi-finished shoe with a resin material and
curing the resin material to form a moisture-permeable and
waterproof resin layer on the outer surface of the semi-finished
shoe and to cover the seams; attaching a shoe sole to the bottom
liner; and removing the shoe last from the receiving space.
2. The method of claim 1, wherein prior to curing of the resin
material, the shoe last is rotated to evenly distribute the resin
material on the outer surface of the semi-finished shoe.
3. The method of claim 1, wherein coating the outer surface of the
semi-finished shoe with the resin material is performed by
immersing the semi-finished shoe together with the shoe last in a
resin material bath.
4. The method of claim 1, wherein the fabric laminate includes an
outer fabric layer and an inner fabric layer connected to the outer
fabric layer.
5. The method of claim 4, wherein the fabric laminate further
includes a foam layer interposed between the outer fabric layer and
the inner fabric layer.
6. The method of claim 4, wherein an outer surface of the outer
fabric layer is patterned.
7. The method of claim 4, wherein an outer surface of the outer
fabric layer is embossed.
8. The method of claim 1, wherein the resin layer has a water
resistance greater than 2000 mm as measured by the method in
accordance with JIS L-1092B.
9. The method of claim 1, wherein the resin layer has a moisture
permeability greater than 2000 g/m.sup.2/24 hr as measured by the
method in accordance with JIS L-1099B1.
10. The method of claim 1, wherein the resin material is made from
polyurethane resin.
11. The method of claim 1, wherein the resin layer has an outer
surface that is opposite to the outer fabric layer and that
exhibits a glossy appearance.
12. The method of claim 1, wherein the resin layer has an outer
surface that is opposite to the outer fabric layer and that
exhibits a matte appearance.
Description
FIELD
[0001] The disclosure relates to a method of making a shoe, and
more particularly to a method of making a moisture-permeable and
waterproof shoe.
BACKGROUND
[0002] Conventional shoes, such as walking shoes, sneakers or
boots, may have a vamp made from fabrics, natural leather or
synthetic leather. The shoes with the fabric or natural leather
vamp have the advantages of breathability and perspiration
repellence, but are not water resistant. The shoes with the
synthetic leather vamp have the advantage of water resistance, but
are defective in breathability and often cause a sweltering
feeling. Besides, the water-resistant effect of the conventional
shoes cannot be comprehensively achieved without application of
strips made from a waterproof material or waterproof adhesive to
seams of the synthetic leather vamp.
[0003] The galoshes are generally made from a waterproof rubber
material in one piece without formation of seams by injection
molding techniques. Since the rubber material is relatively dense,
the conventional galoshes are relatively rigid, heavy and
moisture-impermeable. After wearing the galoshes for a long time, a
user may experience discomfort from sweltering feelings.
SUMMARY
[0004] Therefore, an object of the disclosure is to provide a
method of making a moisture-permeable and waterproof shoe that can
alleviate at least one of the drawbacks of the prior art.
[0005] According to one aspect of the disclosure, the method of
making a moisture-permeable and waterproof shoe includes: forming a
vamp and a bottom liner from a fabric laminate and connecting the
vamp and the bottom liner to form a semi-finished shoe with seams;
disposing a shoe last in a foot-receiving space provided in the
semi-finished shoe; coating an outer surface of the semi-finished
shoe with a resin material and curing the resin material to form a
moisture-permeable and waterproof resin layer on the outer surface
of the semi-finished shoe and to cover the seams; attaching a shoe
sole to the bottom liner; and removing the shoe last from the
receiving space.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Other features and advantages of the disclosure will become
apparent in the following detailed description of the embodiment
with reference to the accompanying drawings, of which:
[0007] FIG. 1 is a flow chart illustrating consecutive steps of an
embodiment of a method of making a moisture-permeable and
waterproof shoe according to the disclosure;
[0008] FIGS. 2 to 4 are schematic views illustrating formation of a
semi-finished shoe of the method shown in FIG. 1;
[0009] FIG. 5 is a schematic view illustrating disposing a shoe
last in the semi-finished shoe of the method shown in FIG. 1;
[0010] FIG. 6 is a schematic view illustrating coating of a resin
material on the semi-finished shoe of the method shown in FIG.
1;
[0011] FIG. 7 is a schematic view illustrating even distribution of
the resin material of the method shown in FIG. 1;
[0012] FIG. 8 is a schematic view illustrating attaching of a shoe
sole of the method shown in FIG. 1;
[0013] FIG. 9 is a schematic view illustrating removing of the shoe
last of the method shown in FIG. 1;
[0014] FIGS. 10 to 12 are schematic views illustrating changes in
an appearance of the shoe according to the disclosure.
DETAILED DESCRIPTION
[0015] Referring to FIGS. 1 to 4, an embodiment of a method of
making a moisture-permeable and waterproof shoe according to the
disclosure begins with forming a vamp 10 and a bottom liner 14 from
a fabric laminate 11, followed by connecting the vamp 10 and the
bottom liner 14 to form a semi-finished shoe 1 with seams 13 (step
S01). In this embodiment, the fabric laminate 11 may include an
outer fabric layer 111 and an inner fabric layer 113 connected to
the outer fabric layer 111. The fabric laminate 11 may further
include a foam layer 112 interposed between the outer fabric layer
111 and the inner fabric layer 113. In this embodiment, forming of
the vamp 1 and the bottom liner 14 is conducted by cutting a
plurality of pieces 12 corresponding to the vamp 1 and the bottom
liner 14 from the fabric laminate 11, and then connecting the
pieces 12 by sewing to form the semi-finished shoe 1 provided with
a foot-receiving space 101.
[0016] Referring to FIGS. 1 and 5, in step S02, a shoe last 2 is
disposed in the foot-receiving space 101 provided in the
semi-finished shoe 1.
[0017] Referring to FIGS. 1, 6 and 7, in step S03, an outer surface
100 of the semi-finished shoe 1 is coated with a resin material 3,
and the resin material 3 is cured to forma moisture-permeable and
waterproof resin layer 32 on the outer surface 100 of the
semi-finished shoe 1 and to cover the seams 13. As an example,
coating the outer surface 100 of the semi-finished shoe 1 with the
resin material 3 is performed by immersing the semi-finished shoe 1
together with the shoe last 2 in a resin material bath for a
predetermined immersing time. For obtaining an intended or required
thickness, the shoe last 2 is optionally rotated about an axis (L)
extending in the lengthwise direction of the shoe last 2 to evenly
distribute the resin material 3 on the outer surface 100 of the
semi-finished shoe 1. Then, the resin material 3 is cured by
heating the resin material 3 formed on the outer surface 100 of the
semi-finished shoe 1 in an oven (not shown) under a predetermined
heating temperature for a predetermined heating time. The
moisture-permeable and waterproof resin layer 32 formed on the
outer surface 100 of the semi-finished shoe 1 may have a thickness
ranging between 25 .mu.m and 50 .mu.m. The resin material 3 may be
made from polyurethane resin. Based on a composition of the resin
material 3, the immersing time may range between 5 seconds and 20
seconds. Based on the required thickness of the resin layer 32 and
the composition of the resin material 3, the heating time may range
between 1 minute and 30 minutes, and the heating temperature may
range between 50.degree. C. and 180.degree. C.
[0018] Referring to FIGS. 1 and 8, in step S04, a shoe sole 5 is
attached to the bottom liner 14 through an adhesive 4. Referring to
FIG. 9, in step S05, the shoe last 2 is removed from the receiving
space 101.
[0019] The moisture-permeable and waterproof resin layer 32 of the
vamp 1 may have different structures due to selection of the resin
material 3. For example, the moisture-permeable and waterproof
resin layer 32 may be in the form of a porous membrane or
non-porous membrane. The porous membrane has a plurality of pores,
each of which has a diameter smaller than that of a water molecule
and larger than that of a water vapor molecule. By way of a proper
pore size arrangement, the porous membrane is waterproof and
moisture-permeable. The non-porous membrane is free of pores and
has a hydrophilic functional group-providing side and a hydrophobic
functional group-providing side. When the non-porous member serves
as the moisture-permeable and waterproof resin layer 32, the water
vapor molecules will be adsorbed on the hydrophilic functional
group-providing side, diffused to the hydrophobic functional
group-providing side through capillary action and finally
transpired to the environment.
[0020] As for the properties of the moisture-permeable and
waterproof resin layer 32, the layer 32 may have a water resistance
greater than 2000 mm as measured by the method in accordance with
JIS L-1092B, and a moisture permeability greater than 2000
g/m.sup.3/24 hr as measured by the method in accordance with JIS
L-1099B1.
[0021] Referring to FIGS. 10 and 11, an outer surface 1111 of the
outer fabric layer 111 may be subjected to a surface treatment in
cooperation with texture modification of the moisture-permeable and
waterproof resin layer 32, and an outer surface 321 of the resin
layer 32 may exhibit different appearances, such as a glossy or
matte appearance. Referring to FIG. 12, alternatively, the outer
surface 1111 of the outer fabric layer 111 may be embossed or
patterned and the moisture-permeable and waterproof resin layer 32
may be made from a transparent resin material, and the shoe may
have different appearances.
[0022] It is noted that based on the intended application and
requirements, an additive, such as a pigment, a UV absorber, or an
antibacterial agent, may be added to the resin material so that the
waterproof and moisture-permeable resin layer 32 may achieve one or
more of hyperchromic, ultraviolet resistant and antibacterial
effects, etc.
[0023] Moreover, incorporation of the foam layer 112 would allow
for the shoe to be soft, comfortable and lightweight for wearing.
In one form, the foam layer 112 is omitted so that the outer fabric
layer 111 is in direct contact with the inner fabric layer 113.
[0024] In summary, compared with the conventional shoes made from
the fabrics, the natural leather or the synthetic leather, with the
moisture-permeable and waterproof resin layer 32 covering the outer
surface 1111 of the outer fabric layer 111 and the seams 13, the
vamp 10 of the shoe of this disclosure is both waterproof and
moisture-permeable. Besides, cutting the pieces 12 from the fabric
laminate 11 and connecting the pieces 12 to form the vamp 10 and
the bottom liner 14 make the semi-finished shoe 1 more flexible to
match with designs and property requirements of different shoes,
and the requirement for developing molds for different shoes can be
eliminated. The structural arrangement of the outer fabric layer
111, the foam layer 112 and the inner fabric layer 113 makes the
moisture-permeable and waterproof fabric laminate 11 of the shoe
relatively lightweight and comfortable for wearing. Surface
treatment performed on the outer surface 1111 of the outer fabric
layer 111, such as embossing or patterning makes the appearance of
the shoe more changeable so as to increase the aesthetic value of
the shoe.
[0025] In the description above, for the purposes of explanation,
numerous specific details have been set forth in order to provide a
thorough understanding of the embodiment. It will be apparent,
however, to one skilled in the art, that one or more other
embodiments may be practiced without some of these specific
details. It should also be appreciated that reference throughout
this specification to "one embodiment," "an embodiment," an
embodiment with an indication of an ordinal number and so forth
means that a particular feature, structure, or characteristic may
be included in the practice of the disclosure. It should be further
appreciated that in the description, various features are sometimes
grouped together in a single embodiment, figure, or description
thereof for the purpose of streamlining the disclosure and aiding
in the understanding of various inventive aspects.
[0026] While the disclosure has been described in connection with
what is considered the exemplary embodiment, it is understood that
this disclosure is not limited to the disclosed embodiment but is
intended to cover various arrangements included within the spirit
and scope of the broadest interpretation so as to encompass all
such modifications and equivalent arrangements.
* * * * *