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Sunday, 25 October 2020

Manufacturing & Service Operations | Functions of Supply Chain

Supply Chain

supply chain is a network of individual functions within an organization that begins with the development of a strategic plan and ends with the delivery of a product or service. Those functions are listed below:
  1. Demand Planning
  2. Supply Management and Procurement
  3. Inventory Management
  4. Warehousing Operations
  5. Manufacturing and Service Operations
  6. Transportation Operations
  7. Customer Service Operations

Saturday, 24 October 2020

Fibre Properties Affected by Spinning Methods

Different spinning methods have different types of influences on fibre properties. So output yarn properties vary according to the spinning methods as below-

Order of importance
Ring
Rotor
Air-jet
Friction
1
Length &
length uniformity
Strength
Fineness
Strength
2
Strength
Fineness
Cleanliness
Fineness
3
Fineness
Length & length Uniformity
Strength
Length & length uniformity
4


Length & length uniformity
Cleanliness

What is Ring data system?

Ring data is an additional attachment for data collection. It is one kind of software which collects data about the ring frame. It is also called production controlling system of the ring frame.

The data collected on:
👉Production data (OPS, GMS total data of previous 3 shift)
👉End breakage rate
👉Machine efficiency
👉Doffing time
👉No. of Doff
👉Machine downtime
👉Yarn count
👉Yarn lot
👉No. of working spindle
👉Fibre type
👉TPI
👉Spindle speed

Friday, 23 October 2020

Comparison of different spinning methods

             
Ring-Spun yarn
Open-end yarn
Air-jet yarn
Wrap yarn
Classic
Compact
Rotor spun
Friction spun
Jet spun, two nozzles,
False twist process
Vortex spun, one nozzle
Filament wrapped
Fibre deposition:
In the core
Parallel, helical
Parallel, helical
Less parallel, helical
Less parallel, helical
Parallel w/o twist
Parallel w/o twist
Parallel w/o twist
In the sheath
Parallel, helical
Parallel, helical
More random, less twisted
Less parallel, helical
6% of fibres twisted around the core in spirals
20% of fibres twisted around the core in spirals
Filament windings
Fibre orientation:
Parallelism
Good
Very good
Medium
Low
Medium
Good
Very good
Compactness
Compact
Very compact, round
Open
Compact to open
Compact
Compact
Compact
Handle
Soft
Soft
Hard
Hard
Hard
Medium to hard
Soft
Hairiness
Noticeable
Low
Very low
low
Some
Low to medium
Very low
Stiffness
Low
Low
High
High
High
Fairly high
Low

Thursday, 22 October 2020

Bangladeshi Cotton

The basic raw material of the textile sector is cotton. Cotton is commonly known is “Kapas Tula” in Bangladesh. The annual requirement of raw cotton for the textile industry of Bangladesh is estimated at around 2.5 million bales. Local production is only about 0.1 million bales. Around 4-5% of the national requirement is fulfilled through the local production, remaining 95-96% is fulfilled by importing raw cotton from India, CIS (Commonwealth of Independent States) countries, the United States of America and African countries. As per the latest information, within total cotton import, 46% comes from India and 20% from the African region and different cotton growing industries.

Manufacturing & Service Operations | Functions of Supply Chain

Supply Chain A  supply chain  is a network of individual functions within an organization that begins with the development of a stra...