All About Zippers
                                                                                                                            


















    The teeth
    These are the little metal, plastic, or nylon pieces that come together to form the chain when
    the zipper is zipped (for more on zipper teeth, see further down).

    The chain
    This is what forms when the zipper teeth are joined.

    The slider
    This is the y-shaped channel that runs up and down the length of the zipper. It’s what joins or
    disengages the teeth. The slider has a way of locking itself to stay in place.

    The pull tab
    This is the tiny handle that’s used to move the slider up and down the length of the zipper.

    The stops
    Present at both ends of a zipper, these are pieces that block the slider from slipping off the end
    of the zipper.

    The Insertion pin
    Present on a separating zipper, it’s the end piece that’s inserted into a retaining box to join the
    two sides of the zipper together.

    The Retaining box
    This is a type of zipper stop on a separating zipper. The retaining box receives an insertion pin to
    join the two sides of the zipper together so it can be zipped.


Zipper teeth materials
                                                                                   

    Metal
    Individual pieces of metal, such as brass, nickel, or aluminum, make up the teeth of this zipper.
    This creates a strong zipper that’s often used in jeans and work clothes. The drawback to
    metal is that it can corrode.

    Plastic
    Individual pieces of molded plastic make up the teeth of this zipper. Plastic zippers are also
    strong and durable.

    Coil
    A continuous coil of nylon or polyester make up the “teeth” of this zipper. Each coil loop acts as
    a “tooth.” It’s more flexible than metal or plastic zippers, making it a good choice for curved
    areas. Coil zippers are generally lighter in weight than metal teeth zippers, are smoother, are
    “self-fixing,” and don’t jam.


Basic Zipper types
                                                                                   

    Conventional zipper (also called a standard or closed-end zipper)
    This type of zipper is closed at one end. It’s usually sewn into an area that’s covered by a
    placket so the zipper won’t show.

    Invisible zipper
    This type of zipper is also closed at one end. However, the zipper teeth are located behind the
    tape so they won’t show when sewn into a seam. This kind of  zipper is often used in dresses
    and skirts.

    Separating zipper
    This type of zipper is sewn into seams that will open completely, such as the front of a jacket.
    The two sides of the zipper separate completely when unzipped.


Choosing a zipper
                                                                                   

    Zippers are numbered with sizes to indicate the width of their teeth when the zipper is closed.
    The smaller the number, the smaller the teeth.

    Zippers are also available in many lengths. The length of a zipper will be indicated on its
    package. Zippers can also be purchased by the yard, allowing you to make your own custom
    zippers.

    When choosing a zipper, choose a color that matches or compliments your fabric. Also consider
    the weight of your fabric and how durable your zipper needs to be. The back of your pattern
    will indicate the zipper length you need. But when in doubt, purchase a zipper longer than you
    think you'll need. You can always shorten the zipper before sewing it into your item (see below).


How to Shorten a zipper
                                                                                   

    A zipper can be shortened from the top or the bottom. To shorten a zipper from the bottom,
    create a new stop by sewing a bar tack across the teeth of the zipper where you want the
    slider to stop. Cut the zipper off about a half an inch below this bar tack.

    If the zipper is to be placed into a garment with a waistband, it can be shortened from the top.
    Sew the zipper in as you normally would. The waistband will automatically create the new stop.
    All you have to do is cut off the extra tape. Just make sure to unzip the zipper first so the slider
    is below your cutting line.


More tips
                                                                                   

    Preshrink your zipper prior to sewing. Either machine-wash and dry it, placing it in a lingerie
    bag so it won’t get lost, or submerge it in warm water for a few minutes and let it air-dry.

    Use a zipper foot to sew in zipper. The design of this pressure foot will allow you to sew close to
    the zipper teeth.

    To reduce wear and tear on a zipper, close all zippers in your garments and bags before
    laundering.
Zippers provide a strong and smooth closure for
our garments and bags. We can position them to
be virtually invisible or install bold, decorative
ones meant to be noticed. Zippers come in a
variety of types, colors, and lengths to suit every
purpose.


The parts of a zipper
                                                                         

    The tape
    This is the woven fabric part of the zipper
    that holds the zipper teeth. It’s what’s
    stitched into a seam to anchor the zipper in
    place.
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