U.S. patent application number 11/207735 was filed with the patent office on 2006-01-26 for method for manufacturing waterproof zipper and the device manufactured from the same.
This patent application is currently assigned to Yen-Ping Sun. Invention is credited to Yen-Ping Sun, Shin-Jen Wang.
Application Number | 20060016051 11/207735 |
Document ID | / |
Family ID | 33448909 |
Filed Date | 2006-01-26 |
United States Patent
Application |
20060016051 |
Kind Code |
A1 |
Wang; Shin-Jen ; et
al. |
January 26, 2006 |
Method for manufacturing waterproof zipper and the device
manufactured from the same
Abstract
A method for manufacturing a waterproof zipper comprises steps
of: feeding a nylon zipper to a feeding device; passing the nylon
zipper to a gluing device and coating PU gel on backsides of the
fastener strips of the nylon zipper; adhering a PU film with PU gel
on backsides of the fastener strips by using rollers to press the
PU film so as to be formed as a waterproof layer; wherein the PU
film is adhered on a release paper; heating the PU film and PU gel
to be formed as a waterproof layer; cutting the waterproof layer
along a center of the waterproof layer so as to form with two
waterproof layers are located at the two fastener strips. Thus a
waterproof zipper is formed. Finally, the waterproof zipper is
guided out. A nylon waterproof zipper is made by using method.
Inventors: |
Wang; Shin-Jen; (Taipei,
TW) ; Sun; Yen-Ping; (Taipei, TW) |
Correspondence
Address: |
Shin-Jen Wang
P.O. Box 166-13
Taipei
115
TW
|
Assignee: |
Yen-Ping Sun
|
Family ID: |
33448909 |
Appl. No.: |
11/207735 |
Filed: |
August 22, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10734912 |
Dec 9, 2003 |
|
|
|
11207735 |
Aug 22, 2005 |
|
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Current U.S.
Class: |
24/389 |
Current CPC
Class: |
A44B 19/32 20130101;
A44B 19/42 20130101; Y10T 24/2514 20150115 |
Class at
Publication: |
024/389 |
International
Class: |
A44B 19/32 20060101
A44B019/32 |
Foreign Application Data
Date |
Code |
Application Number |
May 27, 2003 |
TW |
TW 92114291 |
Claims
1. A nylon waterproof zipper comprising two symmetric fastener
strips; each fastener strip has a front surface and a back surface;
an inner side of the front surface of each fastener strip having a
cord thread protruded from the surface; two chains being mounted
along the cord threads, respectively; the cord threads being fixed
to the fastener strips, respectively; the two chains being engaged
by a coupling slider; a back surface of each fastener strip being
combined with a thin waterproof layer; characterized in that: a
back surface of each fastener strip is permeated with PU gel; and
then a PU film is adhered to the back surface by thermal plastic
stage so as to be formed as a waterproof layer which includes an
inner layer of the PU gel permeating into the fastener strips and
an outer layer at an outer side of the fastener strips.
2. The nylon waterproof zipper as claimed in claim 1, wherein the
waterproof layer is formed with textures.
3. The nylon waterproof zipper as claimed in claim 1, wherein a
thickness of the inner layer is over one third of each fastener
strip.
4. The nylon waterproof zipper as claimed in claim 1, wherein a
thickness of the inner layer is over one half of each fastener
strip.
5. The nylon waterproof zipper as claimed in claim 1, wherein the
waterproof layer is formed with printing patterns.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This is a divisional application Ser. No. 10/734.912, filed
Dec. 9, 2003 now a pending application is divided by products in
its entirety herein.
FIELD OF THE INVENTION
[0002] The present invention relates to waterproof zippers, and
particularly to a method for manufacturing a waterproof zipper and
the device made from the same.
BACKGROUND OF THE INVENTION
[0003] In the prior art of manufacturing slide fastener, it is
found that the slide fastener can be immersed in repellant liquid
so that mist will not be absorbed by stringer tapes easily.
However, the result cannot be maintained for a longer time. When it
is flushed by large amount of water, the stringer tapes always
exposes in the steam, the waterproof effect will be reduced.
[0004] In Taiwan Patent Publication No. 094285, published on Dec.
16, 1987, "an impermeable water proof slide fastener", applied by
Japanese YKK CO., a flexible plastic membrane with the stringer
tapes is heated and sealed for resisting water seepage. However,
this prior art still needs improvement. It needs a C type slider to
slide along the gripper elements to protect them from moisture. The
bond needs to be detached from the stringer tapes due to long time
abrasion. The adhesive of the bond between stringer tapes and
membrane would have been diminished.
[0005] In Taiwan Patent Publication No. 126351, published on Jan.
6, 1990. "water proof zipper" applied by Japanese YKK Co. disclosed
a prior art, where in manufacturing slide fasteners,
water-absorptive swollen material Lanceal-F must be incorporated
into nylon gripper elements. Then the nylon gripper elements with
Lanceal-F is seamed on the stringer tapes. This prior art needs
more labors and costs than other ways of manufacturing.
[0006] In another Taiwan Patent Publication No. 503715, published
on Sep. 21, 2002. "liquid impermeable slide fastener" also applied
by Jap. YKK Co. In this prior art, a special kind of slider instead
of the popular coupling slider is used, but this special slider can
not be matched with other sliders and thus can not be widely
used.
[0007] Moreover, in U.S. Pat; No. 6,105,214 patent, "water proof
slide fastener and process for preparing the same" assigned to
Stuart Press on Aug. 22, 2000. The characteristics of the invention
are a water resistant slide fastener, including a pair of stringer
tapes each having first and second opposed surfaces and each having
a series of gripper elements positioned along edges of said first
surface; and a water resistant layer on said second surfaces,
wherein said water resistant layer has an adhesion to said stringer
tapes of at least about 6 lb/in. Thus, a combined multi-layer film
adheres to the surface of stringer tapes. As they oriented outward
to bear the abrasion or impact directly, they will be damaged. The
water proof effect is reduced.
[0008] In U.S. Pat. No. 6,427,294 "water proof slide fastener and
manufacturing method thereof assigned to YKK Co on Aug. 6, 2002,
disclosed a multi-layer film laminated to the stringer tapes.
Providing a waterproof slide fastener in which a synthetic resin
film is fused to a fastener tape in order to prevent a perforation
phenomenon that the synthetic resin film does not exist locally. A
laminated synthetic resin film composed of low melting point resin
layer having melting point of, for example, 100-140.degree. C. and
high melting point resin layer having melting point of, for
example, 150-230.degree. C. is fused to a surface or both surfaces
of a pair of the fastener tapes with the low melting point resin
layer being in contact with and opposing the fastener tape by
heating with pressure. Fastener elements are mounted onto a side
edge of the fastener tape and the laminated synthetic resin film is
formed so as to protrude outward from the side edge of the fastener
tape and a center point of coupling of the fastener elements.
Because the high melting point resin layer disposed on the surface
of the fastener tape is not melted, no perforation phenomenon
occurs. Further, because the laminated synthetic resin film
protrudes from the side edge, waterproof function is secured.
[0009] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawing.
SUMMARY OF THE INVENTION
[0010] Accordingly, the primary object of the present invention is
to provide a method for manufacturing a waterproof zipper
comprising steps of: (a) feeding a nylon zipper to a feeding
device; (b) passing the nylon zipper to a gluing device and coating
PU gel on backsides of the fastener strips of the nylon zipper; (c)
adhering a PU film with PU gel on backsides of the fastener strips
by using rollers to press the PU film so as to be formed as a
waterproof layer; wherein the PU film is adhered on a release
paper; (d) heating the PU film and PU gel to be formed as a
waterproof layer; (e) cutting the waterproof layer along a center
of the waterproof layer so as to be formed with two waterproof
layers which are located at the two fastener strips; and thus a
waterproof zipper being formed and (f) guiding the waterproof
zipper out.
[0011] Another object of the present invention is to provide a
nylon waterproof zipper comprising two symmetric fastener strips;
each fastener strip has a front surface and a back surface; an
inner side of the front surface of each fastener strip having a
cord thread protruded from the surface; two chains being mounted
along the cord threads, respectively; the cord threads being fixed
to the fastener strips, respectively; the two chains being engaged
by a coupling slider; a back surface of each fastener strip being
combined with a thin waterproof layer; characterized in that: a
back surface of each fastener strip is permeated with PU gel; and
then a PU film is adhered to the back surface by thermal plastic
stage so as to be formed as a waterproof layer which includes an
inner layer of the PU gel permeating into the fastener strips and
an outer layer at an outer side of the fastener strips.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a front view of the waterproof zipper of the
present invention.
[0013] FIG. 2A is backside perspective view of the waterproof
zipper of the present invention.
[0014] FIG. 2B is a backside perspective view of the waterproof
zipper of the present invention, wherein the zipper is
patterned.
[0015] FIG. 2C is a backside elevation perspective view of the
waterproof zipper with patterns.
[0016] FIG. 3 is a block diagram of the first stage of the first
embodiment of the present invention.
[0017] FIG. 4 is a manufacturing flow diagram of the first stage of
the first embodiment of the present invention.
[0018] FIG. 4A is a cross sectional view showing the nylon zipper
of the present invention.
[0019] FIG. 4B is a cross sectional view showing the nylon zipper
added with PU gel.
[0020] FIG. 4C is a cross sectional view showing that the PU gel is
permeated into the fibers of the fastener strips of the present
invention.
[0021] FIG. 5 is a manufacturing block diagram of the second stage
of the first embodiment of the present invention.
[0022] FIG. 6 is a manufacturing flow diagram of the second stage
of the first embodiment of the present invention.
[0023] FIG. 6A is a cross sectional view showing the nylon zipper
of the present invention.
[0024] FIG. 6B is a cross sectional view about the nylon zipper
with PU film in the present invention, where the PU film is
combined with PU gel.
[0025] FIG. 6C is a cross sectional view about the nylon zipper of
the present invention, where the nylon zipper is combined with a
waterproof layer by thermal plastics, and the PU film is combined
with PU gel.
[0026] FIG. 7 is a block diagram for the manufacturing stage in the
second embodiment of the present invention.
[0027] FIG. 8 is a flow diagram about the manufacturing stage of
the second embodiment of the present invention.
[0028] FIG. 9 is a block diagram about the manufacturing stage of
the third embodiment of the present invention.
[0029] FIG. 10 is a flow diagram about the manufacturing stage of
the third embodiment of the present invention.
[0030] FIG. 11 is a block diagram about the manufacturing stage of
the fourth embodiment of the present invention.
[0031] FIG. 12 is a cross sectional view about the nylon zipper of
the present invention after screen printing.
[0032] FIG. 13 is a cross sectional view about the nylon zipper of
the present invention after press-printing.
[0033] FIG. 14 shows the appearances of the samples of the present
invention and the prior art are boiled in water.
[0034] FIG. 15 shows the appearances of the samples of the present
invention and the prior art are sunk in organic solvent.
[0035] FIG. 16 shows the waterproof zipper of the present invention
has two printed patterns.
DETAILED DESCRIPTION OF THE INVENTION
[0036] In order that those skilled in the art can further
understand the present invention, a description will be described
in the following in details. However, these descriptions and the
appended drawings are only used to cause those skilled in the art
to understand the objects, features, and characteristics of the
present invention, but not to be used to confine the scope and
spirit of the present invention defined in the appended claims.
[0037] Referring to FIG. 1, the nylon waterproof zipper 10 of the
present invention includes two symmetric fastener strips 11, 12.
Each fastener strip has a front surface and a back surface. An
inner side of the front surface of each fastener strip 11, 12 has a
cord thread 13, 14 protruded from the surface thereof. The chains
15, 16 are mounted along the cord threads 13, 14, respectively. The
cord threads 13, 14 are fixed to the fastener strips 11, 12,
respectively. Two chains 15, 16 are meshed with a coupling
slider.
[0038] Referring to FIG. 2A, the back surfaces of the fastener
strips 11, 12 are illustrated. It is illustrated that the cord
threads 13, 14 and chains 15, 16 are hidden in the fastener strips
11, 12. Each back surface is combined with a thin waterproof layer
17, 18. After engaging the chains 15, 16 closely, the waterproof
layers 17, 18 have the effect of waterproof so that water will not
drain into the fastener strips 11, 12.
First Embodiment
[0039] In this embodiment, the performance is described in two
stages. FIG. 3 shows the first stage and FIG. 5 shows the second
stage. At first, referring to FIG. 3, the first stage includes the
steps of feeding material 21, gluing 22, pressing 23, drying 24,
and outputting 25.
[0040] As shown in FIG. 4, in the feeding stage 21, the nylon
zipper 10 passes through a feeding device (formed by an upper and a
lower rollers 32, 33) and is taken out from the feeding tank 31 so
that the nylon zipper 10 is extended properly to be in flat state.
The cross section view thereof is shown in FIG. 4A.
[0041] Next, a gluing step 22 is performed. In this step, the
fastener strips 11, 12 are gluing so that the back sides of the
fastener strips 11, 12 are coated with a layer of high adhesive
gel. The main component of the glue is di-thermal liquid bridging
polyester urine resin (i.e., PU gel) mixed with bridging agent. The
gluing device is made of a gel storage tank 34 with a gluing roller
35 therein. A pressing roller 36 with a rotation direction opposite
to the gluing roller 35 is installed at one side of the nylon
zipper 10 opposite to the gluing roller 35. When the gluing roller
35 is adhered with PU gel 37 in the gel storage tank 34, the
pressing roller 36 presses the fastener strips 11, 12 so that the
PU gel 37 is transferred to the back sides of the fastener strips
11, 12 and is combined to the polyester fibers. The cross sectional
view of the gluing nylon zipper 10 is illustrated in FIG. 4B. The
PU gel includes PU adhesive and solvent. If material of the
fastener strips are changed the gel can be replaced by other
adhesives.
[0042] Next, a pressing step 23 is performed. When the fastener
strips 11, 12 passes through the pressing rollers 38, 39, the PU
gel is pressed into the polyester fibers of the fastener strips 11,
12. The capillary is helpful to the addition of the gel by pressing
without increasing the thickness of the fastener strips 11, 12.
Meanwhile, a good combining force is generated. At this time, the
cross sectional view of the nylon zipper 10' is illustrated in FIG.
4C. Besides, the pressing rollers 38, 39 have further function of
extending and smoothing the fastener strips 11, 12 with the guide
rollers 41, 42 for drying.
[0043] In drying step 24, the fastener strips 11, 12 are heated in
the heating box 40 so that solvent of the PU gel 37 vaporizes. The
temperature of the drying box is about 120-180.degree. C. The
heating time is determined by temperature, for example, about 12
seconds in 150.degree. C.
[0044] Finally, the guiding step 25 is performed. In the guide
device formed by the rollers 41, 42, when the active roller 41
rotates, the fastener strips 11, 12 will be driven so as to output
the nylon zipper 10 coated with PU gel. Besides, the two rollers
move speedily with a pull force for adjusting fastener strips 11,
12.
[0045] In above stages, the first stage can be repeated 1 to 3
times for increasing the coating and adhering effect between the PU
gel 37 and the fastener strips 11, 12. This is related to the
combining effect of the second manufacturing stage and PU gel
37.
[0046] With reference to FIG. 5, the block diagram of the second
stage of the present invention is illustrated. Moreover, FIG. 6
shows the flow diagram of the second stage. From FIG. 5, it is
shown that the stage includes the steps of feeding 26, adhering 27,
heating and extruding 28, cutting 29 and guiding 30.
[0047] In above feeding step 26, the nylon zipper 10 coated with PU
gel 37 are driven by two rollers 44, 45 and then are taken out from
the feeding tank 43. The nylon zipper 10 is extended properly. The
cross sectional view of the structure of the nylon zipper 10 is
illustrated in FIG. 6A.
[0048] Next, the adhering step 27 is executed. A compound film
formed by a release paper 50 and PU film 51 is wound along a
winding roller 46. The width of the film is equal to that of the
nylon zipper 10 coated with PU gel 37. When the compound film and
nylon zipper are pressed by the rollers 47, 48, the PU film 51 is
tightly adhered to the PU gel 37 at the backside of the fastener
strips, as shown in FIG. 6B. Furthermore, the release paper 50 of
the film is separated from the PU film 51 behind the roller 47,
then separated release paper 50 guided out by another roller 49.
Generally, the thickness of the PU film 51 is about 2-5 mm, which
can be increased based on the manufacturing conditions. The PU film
51 is a single layer film. It is especially suited for batch
production with a variety of types of different colors. Besides,
the pigment can be added in the manufacturing of the film for
getting the desired colors. If no pigment is added, agents for
preventing change of color or yellowing can be added for getting a
transparent PU film. Moreover, anti-freeze agent, anti-acid agent,
anti-alkali agent, anti-hardening agent, etc. can be added.
Moreover, since the coarseness of the surface of the release paper
is not uniform, when it is separated from the PU film 51, the inner
surface of the PU film 51 may be coarse or smooth. If it is a
coarse surface, the waterproof layer has a dim surface. If it is
smooth, the waterproof layer is bright. In other words, a bright
surface is transparent, and the dim surface is
semi-transparent.
[0049] Then, the heating step 28 is executed. Mainly, the nylon
zipper 10'' adhering on the PU film 51 is transferred to a heating
box 52 to be heated in a temperature of 120-200.degree. C. through
12-17 seconds so that the PU film 51 is combined with the PU gel 37
by thermal plastics (referring to FIG. 6C). Since the PU film 51
and PU gel 37 are main components, after overheating, they are
provided as plasticizer on the compatiblility of the zipper and
then they are combined. Furthermore, a rear end of the heating box
52 may be installed with an extruding device formed by an upper
press roller 54 and a lower press roller 53. The rollers presses
the zipper 10 so that the backsides of the fastener strips 11, 12
are formed with waterproof layers 17, 18. Since the adhesion of the
waterproof layers and the fastener strips 11, 12 are concrete, the
two are firmly secured.
[0050] Next, the cutting stage 29 is performed. A thin knife 55
between the two fastener strips 11, 12 cut the moving PU film 51
through the median line thereof so that the original single sheet
waterproof layer is cut into a left waterproof layer 17 and a right
waterproof layer 18 (referring to FIG. 2A). The cutting depth can
be determined by the thickness of the PU film 51. Since the
waterproof layer cut by the cutting knife 55, so general sliders
can be adapted to the well-formed zipper after it is finished.
There is no need to design a special kind of slider for the zipper
products of the present invention.
[0051] Finally, a guide device formed by a set of upper and lower
rollers 56 and 57 are used in the guide step 30. The roller 56 is a
driving wheel and the roller 57 is a driven roller. The driving
wheel 56 rotates to drive the fastener strips 11, 12 so as to
output the nylon zipper 10 with waterproof layers 17 and 18 at the
backside thereof. Besides, the two rollers 56, 57 have the
function-of adjusting the pull force and speed of the fastener
strips. Furthermore, when a distal end of the heating box 52 is
installed with two press rollers 53, 54, the rollers 56, 57 can be
used to replace the two press rollers 53, 54 for pressing the PU
film 51, PU gel 37 and the fastener strips 11, 12 so as to have an
optimum effect.
[0052] Above mentioned is one preferred embodiment of the present
invention for describing the present invention in detail, however,
some modified embodiments within the spirit of the present
invention can be used without confine the scope of the present
invention. For example, in the first stage, the feeding step 21 and
the gluing step 2 with a preheat step (not shown). Thereby, the
unglued zipper 10' is preheated in temperature between
70-120.degree. C. Thereby, the unglued nylon zipper 10' is more
suitable to be adhered to the PU gel 37. In other words, heated
unglued nylon zipper 10 has a preferred adhesion coating effect to
the PU gel 37.
[0053] Moreover, in the second step 22, other adhesive combinable
to the PU film 51, such as base material polymer (polyester polyol
or acrylic acid polyol) or micro inorganic stuff agent) which is
formed by bridging and hardening). Thereby, it is not confined to
above said PU gel 37.
[0054] Further, in second stage, the heating box 52 can be changed
as many sets of heating and pressing rollers necessary. Besides, a
plurality of press rollers or a plurality of heating sections can
be used in the present invention so that the PU film 51, PU gel 37
and fastener strips 11, 12 have an optimum combining effect.
Second Embodiment
[0055] In this embodiment, the first and second manufacturing
stages are integrated as a continuous production line, as shown in
FIGS. 7 and 8. The steps are feeding step 21, gluing step 22,
pressing step 23, drying step 24, adhesion step 27, heating step
28, cutting step 29, guide step 30. In this embodiment, the guide
device 25 in the first step and the feeding step 26 in the second
stage can be reduced.
Third Embodiment
[0056] To simplify the manufacturing lines in FIGS. 7 and 8, the
block diagram in FIG. 9 can be performed. The stages includes the
step of feeding step 21, gluing step 22, adhesion step 27, heating
step 28, cutting step 29 and guide step 30, as shown in FIG. 10. In
this embodiment, not only the manufacturing stage is simplified,
but also a batch of small amount in manufacturing can be performed
easily. From above description, it is known that the embodiments in
FIGS. 9 and 10 are basic and simple manufacturing method in the
present invention.
Fourth Embodiment
[0057] In above mentioned three manufacturing method, a printing
step 221 or a press step 222 is added between the gluing step 22
and the adhesion step 23 (referring to FIG. 11). In the printing
step 221, the inner surface of the PU film 51 (not outer surface)
is printed with beautiful pattern 512 (referring to FIG. 12) by
screen printing. If it is presented by a perspective view, as shown
in FIG. 2B, and practical view is illustrated in FIG. 16. In the
press step 222, the convex or concave textures are printed on the
inner surface (not outer surface) of the PU film 51 to form
textures 513 (referring to FIG. 13). A perspective view is
illustrated in FIG. 2C. In this embodiment, after the PU film 51 is
combined with the PU gel 37, the patterns 512 or the texture 513
will not disappear out due to friction or scraping. Since the
waterproof layer is transparent, the pattern or texture is clear
and it can be identified easily. Moreover, the transparent texture
513 can be presented as protrusion texture.
[0058] In above FIGS. 12, 13, it is found that for example, the
waterproof layer 18 includes an inner layer 18a in the fastener
strips 12 made of polyester fibers and an outer layer 18b at the
outer side of the fastener strips 12. The thickness of the inner
layer 18a is over 1/3 of the fastener strips, preferably, over
1/2.
[0059] The difference of the present invention with the
manufacturing stage disclosed in U.S. Pat. No. 6,105,214 is that in
the prior art, the glued waterproof film is transferred to the
backside of the fastener strip of the zipper after the waterproof
film is coated with gel, or after a low hardness film is
transferred to the fastener strip, it is coated on the backside of
the fastener strip. Then, the PU film is adhered to the backside of
the fastener strip. Then by heating, the PU gel and PU film are
combined as a waterproof layer by thermal plastic stage. Therefore,
in the present invention, the physical properties, such as
adhesion, heat-tolerance, etc. of the single layer waterproof layer
are improved so that the waterproof layer can be generated with
pattern or texture. This is not disclosed by the prior art.
[0060] Effect of the present invention will be described herein. In
the present invention, the PU gel is permeated into the fibers of
the fastener strip so that the fastener strip is adhesive and has
the function of waterproof. That is to say, when the outer PU film
is destroyed by external force, the inner PU gel has the effect of
waterproof. The PU gel and PU film are combined as a single film by
thermal plastic stage and thus the manufacturing stage is simple
and cost-efficient. The present invention can be suitable for
different climate factors even boiled in water, which is also
designed for preventing from yellowing and deformation. The solvent
of the inner PU gel can vaporize completely so as not to harm the
body. The inner texture or pattern of the waterproof layer can
prevent from scraping and have the function of
counterfeit-proof.
COMPARISON OF THE PRESENT INVENTION WITH PRIOR ART
[0061] In the following, the present invention is compared with a
waterproof zipper adhered by thermal melting gel.
[0062] As shown in FIG. 14, the waterproof zipper of the present
invention (black) and the prior art waterproof zipper (white) are
used as examples. In a temperature of 100.degree. C. and boiling in
water through 30 minutes, the waterproof layer of the waterproof
zipper of the present invention is retained in a good condition and
the waterproof layer of the prior art waterproof zipper
scraped.
[0063] Referring to FIG. 15, when the two waterproof zippers are
sunk in organic solvent (ether) through 5 minutes. The waterproof
layer of the waterproof zipper of the present invention is retained
as the original condition, but the waterproof layer of the prior
art has been scraped.
[0064] Both in physical and chemical tests, the waterproof zipper
of the present invention matches the requirement of international
standard.
[0065] Determination of Amines in Dyestuff
[0066] As per Adidas-Salomon A-01 requirement with reference to
German test procedure for detection of carcinogenic amine in dyed
materials published in German official compilation of test and
inspection procedures, extracted by citrate buffered solution pH 6
at 70.degree. C. and detected by combination of gas
chromatographic-mass spectrometric (GC-MS) and this layer
chromatographic (TLC) analysis. Based on German Texture method
(B82.02-2 January 1998) and polyester method (B82.02-4 January
1998) Following amino material is tested:
[0067] 4-Aminodiphenyl
[0068] Benzidin
[0069] 4-Chlor-O-Toluidin
[0070] 2-Naphthylamin
[0071] O-Aminoazotoluol
[0072] 2-Amino-4-Nitrotoluol
[0073]
P-Chloroanilin2,4'-Diaminoanisol(4-Methoxy-M-Phenylenediamin)
[0074] 4,4'-Diaminodiphenylmethan
[0075] 3,3'-Dichlorobenzidin
[0076] 3,3'-Dimethoxybenzidin
[0077] 3,3'-Dimethylbenzidin
[0078] 3,3'-Dimethyl-4,4'Diaminodiphenylmethan
[0079] P-Kresidin(2-Methoxy-5-Methylanilin)
[0080] 4,4'-Methylen-Bis-(2-Chloranilin)
[0081] 4,4'-Oxydianilin
[0082] 4,4'-Thiodianilin
[0083] O-Toluidin
[0084] 2,4-Toluylendiamin
[0085] 2,4,5-Trimethylanilin
[0086] O-Anisidine
[0087] 2,4-Xylidine
[0088] 2,6-Xylidine
[0089] 4-Aminoazobenzene
[0090] The test result is below 5 ppm, it can assure that the
minimum and maximum capacity is 30 ppm. The result is matched to
the test standard.
[0091] (2) Detection by German standard test method: the heavy
metal in the chromatography of the waterproof layer is lower than
standard value. TABLE-US-00001 Tested item Test method Result Limit
Sb DIN38405D 32 <1 10 ppm Cd DIN38406D 19 <0.01 0.1 ppm Pb
DIN38406D 6 <0.1 1 ppm Hg DIN38406D 12 <0.01 0.02 ppm Cr
DIN38406D 10 <0.1 2 ppm
[0092] Remarks: <=Less than
[0093] ppm=Parts per million
[0094] (3) Referring to German Industrial Standard (DIN53314:1996),
the content of the six bond chromium by the ultraviolet ray
analysis: TABLE-US-00002 Test component Result in ppm Limit ppm
(Max) Cr ND (<0.1) 3
[0095] Remarks: ppm=Parts per million
[0096] <=Less than
[0097] ND=Not detected
[0098] (4) Referring to Japan 112 by spectrophotometer analysis to
detect the content of Formaldehyde. TABLE-US-00003 Test component
Result in ppm Limit ppm Formaldehyde <1 75 ppm
[0099] Remarks: ppm=Parts per million
[0100] <=Less than
[0101] (5) By Analysis by gas chromatography TABLE-US-00004 Test
sample Result (ppm As Sn) Limit (ppm As Sn) Mono-butyl tin (MBT)
0.19 ppm 1 ppm
[0102] Remarks: ND=Not detected
[0103] Detection limit=0.05 ppm As Sn
[0104] ppm=Parts per million
[0105] (6) Analysis by gas chromatography TABLE-US-00005 Test
sample Result (ppm As Sn) Limit (ppm As Sn) Di-butyl tin (DBT) 0.40
1 ppm
[0106] Remarks: ND=Not detected
[0107] Detection limit=0.05 ppm As Sn
[0108] ppm=Parts per million
[0109] (7) Analysis by gas chromatography TABLE-US-00006 Test
sample Result (ppm As Sn) Limit (ppm As Sn) Tri-butyl tin (TBT) ND
ND
[0110] Remarks: ND=Not detected
[0111] Detection limit=0.05 ppm As Sn
[0112] ppm=Parts per million
[0113] (8) (PH) Vaule detection TABLE-US-00007 Test sample pH value
Limit PH 5.67 4.0-7.5
[0114] Result
[0115] All the test is in safety range: TABLE-US-00008 Item:
Result: Dry containing nitrogen qualified Components of heavy metal
qualified Content chromium qualified Content of Formaldehyde
qualified Mono-butyl tin (MBT) qualified Contents of Di-butyl tin
(DBT) qualified Contents of Tri-butyl tin (TBT) qualified PH value
qualified
[0116] Although the present invention has been described with
reference to the preferred embodiments, it will be understood that
the invention is not limited to the details described thereof.
Various substitutions and modifications have been suggested in the
foregoing description, and others will occur to those of ordinary
skill in the art. Therefore, all such substitutions and
modifications are intended to be embraced within the scope of the
invention as defined in the appended claims.
* * * * *