Metal Tooth Zippers

Zippers made with metal teeth go back to 1893, when Judson Whitcomb patented the first Slide Fastener.

Great advancements have been made since that first interlocking device was developed. Today, UZIP ZIPPER offers gold zipper in different gauges including #0, #1, #2, #3, #4, #5, #7, #8, #10, #12, #15 and distinct finishes. #5, #8 and #10 are used mostly.

The #5 gauge is a medium weight zipper with standard 9/16" tape width or a wider 3/4" tape width. The #10 gauge is a heavy weight zipper available in 3/4" tape width.

Shown below are the 4 different finishes that UZIP ZIPPER offers for metal tooth zippers.

If you want to know more about gold metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Inventions which may instead of zipper

It seems that there is always a need to open and close things repeatedly and quickly. The heavy duty zippers does a very good job of that, but there are other inventions designed to do the same thing.

Have you ever packed a lunch to take on a trip? You may have used a Ziploc bag to keep your sandwich fresh. Ziploc bags are made of plastic and have male and female sides that lock together. Originally, Ziploc bags had only one seal, but now many have two. The seals are very tight and can be waterproof. Try doing that with buttons!

Another invention you are probably familiar with is Velcro. Velcro is usually made from nylon and has two sides. One side is called the hook side (it looks like a forest made up of tiny mushrooms). The other side is called the loop side (it looks like chain stitching made from nylon threads). When you press the two sides together, the hooks and the loops lock together to fasten the material.

If you want to know more about gold metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Zipper Engineering

What makes a good Riri teeth zipper? Mostly, it must be strong! There are actually six engineering measurements that are made to determine just how strong a zipper is. Who would have thought that! The actual test descriptions get a little complicated to explain, but see if you can get an idea from the names of the tests as to what they are trying to measure:

•Crosswise Strength

•Vertical Tensile Strength of the Top Stop

•Bottom Stop Tearing Strength

•Tensile Strength of the Box

•Slide Lock Strength

•Overall Strength of the Slider

If you want to know more about corn teeth zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

zipper parts

If you have ever looked at a heavy duty zipper, you know that they seem to be pretty simple devices. But there is more to them than first meets the eye! In general, a zipper has 12 parts. They are:

     •Top Tape Extension: fabric that extends beyond the top of the zipper

     •Top Stop, or Bridge Stop: used at the top of the zipper to keep it from separating

     •Slider: the device that moves up and down the actual chain

     •Pull Tab: the part of the slider that moves up and down to open and close

     •Tape: the fabric part of the zipper

     •Chain: the piece (often metal) composed of the individual zipper teeth

     •Bottom Stop: a device at the bottom of the zipper to keep it from separating

     •Bottom Tape Extension: fabric that extends below the bottom of the zipper

     •Single Tape Width: the width of one half of the zipper fabric

     •Insertion Pin: a device used on a separating zipper (like the kind on a jacket) that allows a person to join the two sides of the zipper together.

     •Retainer Box: an end stop at the bottom of some zippers

     •Reinforcement Film: additional fabric to add reinforcement strength at the bottom of the zipper

Try taking a magnifying glass sometime and seeing how many of the zipper parts you can identify!

If you want to know more about gold metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

The Invention of the Zipper

Although buttons were easy to use, there were times when better ways to fasten clothing together were needed. Depending on how the buttons were arranged on one’s clothes, the simple act of sitting down could be cumbersome and could damage the upholstery on furniture. Also, buttons do not provide a very tight seal, which is important in cold climates.

In 1851, inventor Elias Howe (who also invented the sewing machine), received a patent for a device called an “Automatic Continuous Clothing Closure.” This would be the first version of what we commonly refer to as a zipper today. Although Howe invented this device, the popularity of the sewing machine occupied so much of his time and effort that he never pursued the development of a market for his invention.

Over forty years would go by with no zippers until another inventor, Whitcomb Judson, developed a similar device he called the “Clasp Locker.” Unlike Howe, Whitcomb decided to market his invention. He formed the Universal Fastener Company to manufacture clasp lockers. Unfortunately, in spite of his best efforts, his product did not capture the public’s attention and never really took off.

All was not lost, however. One of Judson’s engineers, a Swedish gentleman named Gideon Sundback, began working on different designs for the clasp locker. It was Sundback who would create what we would consider to be the first modern zipper, which Sundlack named the “Separable Fastener.” In addition to the “Separable Fastener,” he also invented a machine that could manufacture the device, making several hundred per day.

One of the first buyers for Sundback’s invention was the B.F. Goodrich Company. They wanted to use the device to act as a fastener for a new design they had for rubber boots. It was the people at Goodrich that coined the name “zipper.”

Now the heavy duty zippers are mostly use for garment and bags.

If you want to know more about high polished metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

The World Before the Zipper

Before the zipper was invented, what kinds of fasteners did people use? In biblical times, men and women wore tunics. Tunics were garments made from two pieces of material that were joined together by a seam at waist level. A tunic was held up against the wearer’s waist by a girdle made from leather or other coarse material. The girdle, which was akin to what we would know as abelt, served as a kind of fastener.

If a man had to work or run, he would pull up his tunic and tuck it into the girdle to give him greater freedom of movement for his legs. This was called girding up one’s loins. If you do a word search in the Bible, you will find the word gird appearing numerous times throughout Scripture. It often means “to fasten” something to a person, whether it be clothes or a weapon.

Another piece of clothing that was often worn, especially during cold weather, was a cloak. A cloak was a piece of cloth that had slits in it for arms. It was worn over the top of a tunic. Because of their designs, neither the tunic nor the cloak required any kind of special fastener to hold things together. Wearing them was simply a matter of sliding the garment on and adjusting the girdle.

About 2800 BC, people began to adorn clothes with ornaments and seals made from seashells that were carved into different shapes. These served no real functional purpose that we know of other than fashion. But that started to change in the 13th century.

The textile industry grew and matured in Europe. Clothing fashions began to change, and garments became increasingly snug. Buttons, and their associated buttonholes, were used to fasten clothes together.

Buttons had some great advantages: They were simple to use and easy to fix or replace. The first European buttons became status symbols. The larger and more intricate a man’s buttons were, the more power and prestige he was given. Gold and silver buttons were proudly displayed by nobility. Specialized button craftsmen were hired to manufacture increasingly ornate buttons that included carvings and paintings on them. Things started to get a bit out of hand, with some men having buttons nearly the size of dinner plates on their jackets!

If you want to know more about metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Zipper in My Life

A typical morning for me goes something like this: I get up, shower, shave, and get dressed for work. I button my shirt, zipper my pants, tighten my belt, and tie my shoelaces. I then go to the kitchen to make my lunch. I put a sandwich and snacks in zipper bags, throw them in my canvas lunch bag, and close the zipper.

Before I head out the door, I put on a light jacket and zip it up. When I get to work, I go through security where I unzip my lunch bag, show the guard the contents, and then zipper it back up.

Some days, I get calls asking me to test a piece of equipment. I throw my tools in a backpack and close the zipper. When I get to the work location, I unzip the backpack to get to my tools.

Do you see a recurring theme? Devices such as buttons, belts, laces, and zippers are actually tools that are known as fasteners. They are very useful, and you probably use them more than you think!

If you want to know more about metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Determining Your Zipper Size

For UZIP shiny sliver zipper you can determine the zipper size by looking on the "back" of the zipper slider.

Use

#1, #2, #3 and #4 zippers for children’s wear, pockets, light jackets and ultralight backpacking gear

#5 zippers for jackets, coats, lighter tents and standard backpacking gear, and light bags

#8 zippers for heavy jackets and coats, cases and medium bags, and heavier tents

#10 zippers for heavy bags and cases

If you want to know more about gold metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Methods to Determine Zipper Strength

There are various methods by which to evaluate highly polished metal zipper strength. The basic strength can be determined based on the results of the following inspection methods, from which all around strength appropriate for respective uses can be judged.

Crosswise Strength of chain (per 2.5cm)

To determine ordinary zipper strength: a zipper chain is interlocked, pulled at a fixed speed at a right angle to the chain interlocked direction, and the resistance is measured.

Vertical tensile strength of the top stop

The lower part of an interlocked zipper is fixed and the slider is pulled up to the top stop.

Holding strength is measured by pulling the slider top stop firmly.

Bottom stop tearing strength

A slider is pulled down to the bottom stop and single chains are opened to the right and left sides.

Bottom stop holding strength and resistance of the elements inside the slider are measured.

Horizontal tensile strength of the box

The open part is fixed to the tensile tester

(Only the open part as shown in the figure) so that the end of the last element falls into line with the clamp edge and the tensile strength can be measured.

Slider lock strength

A slider is locked at the middle of a zipper chain and single chains are opened to the right and left sides. Locking strength and resistance of the elements inside the slider are measured.

Overall strength of the slider (90 degrees)

For a completed slider, resistance of the slider is measured when power is put on the pull tab and the lower part of the body. In addition to the 90 degree method of measuring shown in the figure at left, there is one of 45 degrees.

If you want to know more about metal zipper two way and zipperpuller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Differences in Zipper Material

Metal zippers have been around quite a while. In fact, the first zippers were made of metal back in 1893. Metal zippers are available in different finishes:

Brass:  Chain that is constructed of brass, typically a combination of copper and zinc.

Antique Brass:  Chain made from brass that is chemically treated to give the appearance of worn or tarnished brass.

Black Oxidized: Chain made from brass that is chemically treated to a black matte finish.

Gauge

The gauge or size of the chain teeth is available in #3, 4, 5, 8 & #10. They are shown in proportion along with their respective tape width.

#5 Gauge   Actual Overall Width is 1.25"

#10 Gauge   Actual Overall Width is 1.75"

If you want to know more about metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com

Anti-slide zipper locks

Some heavy duty zippers include a designed ability for the slider to hold in a steady open or closed position, resisting forces that would try to move the slider and open the zipper unexpectedly. There are two commons ways this is accomplished:

The gold zipper handle can have a short protruding pin stamped into it, which inserts between the zipper teeth through a hole on the slider, when the handle is folded down flat against the zipper teeth. This appears on some brands of pants. The handle of the fly zipper is folded flat against the teeth when it is not in use, and the handle is held down by both slider hinge tension and the fabric flap over the fly.

The slider can also have a two-piece hinge assembly attaching the handle to the slider, with the base of the hinge under spring tension and with protruding pins on the bottom that insert between the zipper teeth. To move the zipper, the handle is pulled outward against spring tension, lifting the pins out from between the teeth as the slider moves. When the handle is released the pins automatically engage between the zipper teeth again.

A three-piece version of the above uses a tiny pivoting arm held under tension inside the hinge. Pulling on the handle from any direction lifts the pivoting arm's pins out of the zipper teeth so that the slider can move.

If you want to know more about metal zipper and zipper puller, please contact with UZIP ZIPPER.

Jessica Kung

Skype: tdysho

Wechat: jessicakung1017

Whats: 8613631458295

Email: uzipga@hotmail.com