What Is Marker? How to Calculation of Marker Efficiency?

Marker:

A marker is a diagram of a precise arrangement of pattern pieces for sizes of a specific style that are to be cut from in one spread. Marker is a thin paper which contains the patterns of all the components needed to produce a garment ensuring the least fabric wastage.

Marker Efficiency:

Marker efficiency is defined as a ratio of area of marker used in a garment and area of total marker. 

Secondly, Glock and Kunz have defined this term in their book, Apparel Manufacturing as Marker efficiency is determined from fabric utilization, the percentage of total fabric that is actually used in garment parts. 

Marker efficiency and Fabric utilization is not same thing. In marker efficiency calculation fabric wastage due to end bits and end loss is not included but in fabric utilization calculation all kinds of fabric wastage are included.

Calculation of Marker Efficiency:

Calculation method of marker efficiency has been explained below with formula.

Formula#1

Marker efficiency% = (Area of marker used for garments / Area of total marker) * 100

Area of marker used for garments: In case of CAD marker, CAD system automatically calculates total area of garment pattern pieces placed in a marker. So you get area of marker that is consumed by garments from CAD system.

Total Marker Area: To calculate total marker area simply multiply marker length by marker width. In manual marker it is difficult to measure surface area of garments patterns in a marker. You can use a mechanical device, Planimeter, to calculate the surface area of pattern pieces from outlines of the pattern pieces. Another method can be practiced to calculate marker efficiency when you don’t have CAD system or Panimeter. Calculate ratio of weight of fabric consumed by pattern pieces and total weight fabric under total marker area. So a separate formula is used to find marker efficiency.

Factors of Marker Efficiency:
- Fabric Characteristics
- Characteristics of Pattern Pieces
- Grain Line Orientation
- Standards of Fabric Utilization

শেয়ার করুন

লেখকঃ

পূর্ববর্তী পোষ্ট
পরবর্তী পোষ্ট
November 1, 2019 at 4:08 AM

Nice post. Waiting to get more.

Reply
avatar
December 30, 2019 at 6:16 PM

BCI Engineering Institute.Best polytechnic institute in Dhaka,Bangladesh

https://www.bci.edu.bd/

Reply
avatar