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Product Development > Quiz 4 > Flashcards

Quiz 4 Flashcards

1
Q

ASTM International D6193-97

A

The Standard Practice for Seams and Stitches designation for classifying stitches and seams

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2
Q

Stitch

A

The unit of thread formation in production of seams and stitching

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3
Q

Seams

A

Formed by a series of stitches joining two or more pieces of fabric together

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4
Q

Lockstitch machine

A

Requires both a needle thread and a bobbin thread to form a stitch

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5
Q

Chain stitch machine

A

Interlocks one or more threads to form a stitch. No bobbin—only needles and threads

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6
Q

Stitch class

A

A three digit number that identifies the stitch configuration. The first number identifies the class and the last two digits identify the specific stitch type within the class

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7
Q

100 class stitches

A

Chain stitches are formed by a single needle thread which interloops with itself

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8
Q

200 class stitches

A

Hand stitches and a few machine imitations

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9
Q

300 class stitches

A

Lock stitches formed by a needle thread and a bobbin thread

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10
Q

400 class stitches

A

Multithread chain stitches formed by multiple interlooped needle threads

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11
Q

500 class stitches

A

Over edge stitches that are formed over the edge of the fabric by multiple interlooped needle threads

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12
Q

600 class stitches

A

Cover stitches that are formed by multiple interlooped needle threads

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13
Q

Safety stitches

A

Two parallel rows of stitches that produce a very secure seam; formed by a row of overedge stitches and a row of either multithread chain stitches or lock stitches and found in the 500 stitch class only

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14
Q

Seam classification

A

The position of pieces relative to each other at the point where they are sewn

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15
Q

Seam allowance

A

The extension between the row of stitching and the edges of the fabric. Standard industry seam allowances are 1/2 inch in straight seams and 1/4 inch on curves. Tailored apparel at designer price points may contain 1 inch seam allowances on major vertical seams.

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16
Q

Seam class

A

Two uppercase letters identify the seam class and are followed by a lowercase letter or letters that identify the seam type

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17
Q

SS seam class

A

Superimposed seam that is formed by stacking plies of fabric on top of one another and stitching them near the edge.

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18
Q

How many variations are in the SS seam class?

A

54

19
Q

LS seam class

A

lapped seam that is formed by overlapping the seam allowances of two or more plies of fabric and sewing them together

20
Q

How many variations are in the LS seam class?

A

102

21
Q

BS seam class

A

Bound seam that is formed by encasing the raw edges of a seam with fabric strips

22
Q

How many variations are in the BS seam class?

A

18

23
Q

FS seam class

A

Flat seam is formed by joining fabric plies by butting the raw edges together and securing them with a 600 class cover stitch or zigzag stitch

24
Q

How many variations are in the FS seam class?

A

6

25
Q

OS seam class

A

Ornamental stitching is decorative details such as tucks, pleats, piping, embroidery. Bridge the gap between stitch types and true seams

26
Q

How many variations are in the OS seam class?

A

8

27
Q

EF seam class

A

Edge finishes that prevent raveling of woven fabrics and curling of knit fabrics. Used at hems and facings. Bridge the gap between stitch types and true seams

28
Q

How many variations are in the EF seam class?

A

32

29
Q

What is the scale for spec sheets?

A

1/8” on paper = 1” real life

30
Q

How many inches do you add to a circumference that is not chest width?

A

4

31
Q

How many inches do you add to chest width circumference?

A

7

32
Q

HPS

A

High point of shoulder

33
Q

Tolerance

A

The difference between the allowable minimum and maximum on a process or finished measurement

34
Q

Raw material standards

A

For fabrics and findings and are used to communicate with suppliers during the planning stages of product development

35
Q

Specification libraries

A

A database of previously developed styles, patterns, and measurement specifications that can be recalled and reused within specification packages for new styles

36
Q

Size specifications

A

The measurements for an individual style that are based on the combination of body measurements, functional ease required for body movement, and styling ease to achieve the desired look for the product

37
Q

Croquis

A

An illustrated body form used for creating proportional technical flat drawings of garments

38
Q

CF

A

Center front

39
Q

CB

A

Center back

40
Q

SS

A

Side seam

41
Q

TM

A

Total measurement or circumference

42
Q

Stitch classes

A 
100 Single thread chain stitches
200 Hand stitches
300 Lock stitches
400 Multithread chain stitches
500 Over edge stitches
600 Cover stitches
43
Q

Seam classes

A 
SS Superimposed seams
LS Lapped seams
BS Bound seams
FS Flat seams
OS Ornamental stitching
EF Edge finish stitching

Product Development (6 decks)

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