Knitting is a method of fabric formation that involves interlocking loops of yarn. There are two main types of knitting - weft and warp. Weft knitting forms loops across the width of the fabric using a single yarn, while warp knitting forms loops along the length using multiple yarns. Common weft knits include plain, purl, rib, and interlock stitches which are used to make various garments and textiles. Warp knits like tricot and raschel are produced more quickly on specialized machines and can incorporate diverse yarn types and complex structures. Knitted fabrics have different properties depending on factors like stitch type, yarn used, and intended application.
Plain design is basic design. There are many derivatives of plain design.Like Rib:A weave in which either owing to the interlacing or to the yarns used, warp or weft is the stronger or remains comparatively straight, while the other material does all the bending.
Plain design is basic design. There are many derivatives of plain design.Like Rib:A weave in which either owing to the interlacing or to the yarns used, warp or weft is the stronger or remains comparatively straight, while the other material does all the bending.
Feed system plays a vital role for fabric feeding and it's movement
Apparel Engineering II describes different types of feed system in garment industry.
Satin Weave & it’s derivatives by: Khodadad Ibrahim Anikfahim zauwad
Satin weave, although more complicated, is a flexible type of weave than the plain weave. It is called ‘satin’ when filament fibers such as silk or nylon are used and is called ‘sateen’ when short-staple yarns like cotton is used to make it.
The satin weave is lustrous with a smooth surface and it drapes in an excellent manner.
Twist is the measurement of the spiral turns gives to a yarn in order to hold the constituent fibre or together. Twist may defined as the rotation about the yarn axis of any line drawn on the yarn which was originally that is before twisting parallel to the yarn axis.
Jacquard loom is a mechanical loom that produces elaborate design in an complex weave.
1. Scope of Jacquard Shedding
2. Classification of jacquard
Broadly:
Ordinary jacquard
Special jacquard
According to lift and no. of pattern cylinder:
Single lift single cylinder jacquard
Double lift single cylinder jacquard
Double lift double cylinder jacquard
According to figuring capacity:
100’s, 200’s, 300’s (100’s………………………..1800’s +)
According to type of shed :
Bottom close shed jacquard
Centre close shed jacquard
Semi-open shed jacquard
Open shed jacquard
According to pitch of jacquard :
Fine pitch jacquard
Medium pitch jacquard
Coarse pitch jacquard
According to position of jacquard :
Vertical
Horizontal
4. What is JACQUARD Shedding
5. Description on Single Lift and Single Cylinder (SLSC) and
6. Description on double lift and single cylinder (DLSC)
7. References
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
Knowing the basics of raw material, yarn production process and the other factors influencing quality will put the sourcing manager at the same eye level as a spinner /supplier when negotiating quality issues.
As a consequence this puts the sourcing manager in the position to pay the right price for the corresponding quality level.
This kind of know-how supports a retailer enormously in his efforts to establish a reliable supply chain which is based on mutual understanding.
Feed system plays a vital role for fabric feeding and it's movement
Apparel Engineering II describes different types of feed system in garment industry.
Satin Weave & it’s derivatives by: Khodadad Ibrahim Anikfahim zauwad
Satin weave, although more complicated, is a flexible type of weave than the plain weave. It is called ‘satin’ when filament fibers such as silk or nylon are used and is called ‘sateen’ when short-staple yarns like cotton is used to make it.
The satin weave is lustrous with a smooth surface and it drapes in an excellent manner.
Twist is the measurement of the spiral turns gives to a yarn in order to hold the constituent fibre or together. Twist may defined as the rotation about the yarn axis of any line drawn on the yarn which was originally that is before twisting parallel to the yarn axis.
Jacquard loom is a mechanical loom that produces elaborate design in an complex weave.
1. Scope of Jacquard Shedding
2. Classification of jacquard
Broadly:
Ordinary jacquard
Special jacquard
According to lift and no. of pattern cylinder:
Single lift single cylinder jacquard
Double lift single cylinder jacquard
Double lift double cylinder jacquard
According to figuring capacity:
100’s, 200’s, 300’s (100’s………………………..1800’s +)
According to type of shed :
Bottom close shed jacquard
Centre close shed jacquard
Semi-open shed jacquard
Open shed jacquard
According to pitch of jacquard :
Fine pitch jacquard
Medium pitch jacquard
Coarse pitch jacquard
According to position of jacquard :
Vertical
Horizontal
4. What is JACQUARD Shedding
5. Description on Single Lift and Single Cylinder (SLSC) and
6. Description on double lift and single cylinder (DLSC)
7. References
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
Knowing the basics of raw material, yarn production process and the other factors influencing quality will put the sourcing manager at the same eye level as a spinner /supplier when negotiating quality issues.
As a consequence this puts the sourcing manager in the position to pay the right price for the corresponding quality level.
This kind of know-how supports a retailer enormously in his efforts to establish a reliable supply chain which is based on mutual understanding.
In weft knitting, the loops are formed across width of the fabric Each weft thread is fed , more or less at right angles to the direction in which the fabric is produced.Weft-knit fabrics may also be knit with multiple yarns, usually to produce interesting color patterns.
Introduction of knitting, prepared by students of Daffodil International Univ...Matiur Rahman khan Babu
This slide is for the student of Textile Engineering of initial stage of knitting of fabric formation. prepared by Matiur,Mesbah, Amzad, Shakil, Rifat & tuhin
Knit fragments dating back to 250 BC
◦
Compared to 9,000 years for wovens
y
Introduced to Europe by the Arabs
◦
Did not gain popularity until around 1,000 AD
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This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
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Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
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Charlie Greenberg, Host
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
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The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
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Bob Boule
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Let me take this questions and provide you a short journey through existing deployment models and use cases for AI software. On practical examples, we discuss what cloud/on-premise strategy we may need for applying it to our own infrastructure to get it to work from an enterprise perspective. I want to give an overview about infrastructure requirements and technologies, what could be beneficial or limiting your AI use cases in an enterprise environment. An interactive Demo will give you some insides, what approaches I got already working for real.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
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Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
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The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
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https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
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GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
2. .
What is knitting and knit fabric?01Education
Plan
WEFT KNITTING02
WARP KNITTING03
.
Applications And End-Uses04
3. .
• Knitting is a method by
which thread or yarn is used
to create a cloth.
• Knitted fabric consists of a
number of consecutive rows
of loops, called stitches.
• As each row progresses, a
new loop is pulled through
an existing loop.
• The active stitches are held
on a needle until another
loop can be passed through
them.
What is knitting and knit fabric?
4. .
•This process eventually
results in a fabric, often used
for blankets or garments.
•Fabrics made from only one
set of yarns, all running in
the same direction. Some
knits have their yarns
running along the length of
the fabric, while others have
their yarns running across
the width of the fabric.
•Knit fabrics are held together
by looping the yarns around
each other.
What is knitting and knit fabric?
5. Eng.mostafa mahmoud
Simply stated, knitting is the inter
looping of yarns to form a textile
structure.
There are two classifications of
knits – weft and warp.
Weft formations have yarns which
are knit across the width of the
fabric while warp formations have
yarns being knitted along the
length of the fabric
6.
7. Weft knitting:
Weft knitting is a method of fabric
forming in which loops are formed
in a horizontal way from a single
yarn & intermeshing of loops takes
place in a circular & flat from on
across wise basis.
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Warp knitting is a method of
fabric forming in which the loops
are formed in a vertical way along
the length of fabric from each
warp yarn & intermeshing of
loops takes place in a flat from of
length wise basis.
Warp knitting:
9. WEFT KNITTING
Weft knitted fabrics curl
up at the edges when they
are cut.
Weft or filling knits is
the most common
type used to produce
textile knitted
products.
Weft knitted fabrics curl
up at the edges when
they are cut.
The loops of yarn trap
air which retains body
heat to keep us warm.
.
the fabrics can
lose shape
easily.
Weft knits are
constructed from one
yarn which is fed into a
knitting machine in a
horizontal direction.
The fabric has high
elasticity and stretch.
10. Classification of weft knitting machine
• According to the frame design &
needle bed arrangement.
• Circular knitting machine
• Flat knitting machine
11. Classification of weft knitting machine
• According to the no. of needle
bed.
• Single jersey circular knitting
machine
• Double jersey circular knitting
machine
12. Classification of weft knitting machine
• According to the basic structure of the weft
knitting
• Plan or single jersey circular knitting machine
• Purl or link-link flat or circular knitting machine
• Rib flat or circular knitting machine
• Interlock flat or circular knitting machine
Brand Origin
Orizio Italy
Fukahama Taiwan
Terrot Germany
Teinyang Taiwan
Well Knit Taiwan
Fukahara Japan
Mayer & cie Germany
Hanma China
Hupter Taiwan
Jiunn long Taiwan
Masa Taiwan
Dong ho Taiwan
Jinhar Taiwan
Pailung Taiwan
Lisky Taiwan
Tayo Taiwan
Zentex Singapore
13. BASIC STITCH
SINGLE JERSEY STITCH
• Plain jersey fabric is the
simplest weft knitted
structure.
• Jersey knits have flat
vertical lines on the front
and dominant horizontal
ribs on the back of the
fabric.
14. SINGLE JERSEY
STITCH
End-uses
Used form making
hosiery and
pantyhose.
Characteristics
Tend to run or ladder
if stitch breaks .
End-uses
Used for making sweaters,
terry robes, t-shirts, men’s
underwear and dresses. Also
used for making fully fashion
garments..
End-uses
Also used for making
fully fashion garments..
.
Characteristics
Stretch crosswise and
lengthwise, stretches
more in the crosswise.
Characteristics
Fabric less stable and
curls when cut..
15. BASIC STITCH
PURL STITCH
• A simple purl fabric looks
like the back of jersey
knit on the both side of
the fabric.
• Purl fabrics are made on
knitting machines called
purl knit machines or
links-or links machines.
16. PURL STITCH
End-uses
Used for making
sweaters and
scarves.
Characteristics
Good stretch in all
direction but stretches out
of shape easily.
.
End-uses
Used for making infant
and children’s wear.
End-uses
Used for doing fancy
garment parts.
Characteristics
The production process
of purl knit is slow. Both
side similar appearance
Characteristics
Thicker than jersey knits
and does not curl on edges
17. BASIC STITCH
RIB STITCH
• Rib fabric is a double jersey knitted
fabric with vertical rows (wales) of
loops.
• Simplest rib fabric is 1 x 1 rib
having alternate wales knitted to
the front and back.
• The ribs tend to close up to create
a double faced fabric, which has
the same appearance on both
sides.
• Rib knits fabrics are produced with
the knitting machines having two
sets of needle, normally positioned
at rights angle to each other.
18.
19. RIB STITCH
End-uses
Used for doing bottom
edges of sweaters
Characteristics
More elastic and more
thicker than jersey knits.
End-uses
Used for making Collars
and cuffs and necklines.
.
End-uses
Used for making double
knits jackets, knit hats and
men’s hosier
.
Characteristics
Its reversible fabric
More stretch crosswise than
length.
Characteristics
More expensive to produce
20. BASIC STITCH
INTERLOCK STITCH
• Interlock stitch knits
are variations in rib
stitch knits.
• Interlock is produce on
a cylinder and dial
circular weft knitting
machine, with alternate
long and short needles
opposite to each other
on cylinder and dial.
21.
22. INTERLOCK STITCH
End-uses
Used for doing bottom
edges of sweaters
Characteristics
It is a good insulator..
End-uses
Used for making Skirt,
blouses and t-shirts.
End-uses
Used as an outwear
fabric for making
dresses..
Characteristics
It is a reversible fabric.
Costlier fabric .
Characteristics
. It is heavier and thicker as
compare to rib and it does
not curl at the edges
23. WARP KNITTING
The production system is
fast so the fabrics are
quick to make.
It is mainly used with
synthetic filament yarns.
Higher production
rates than for weaving
A low stress rate on
the yarn that facilitates
careful handling of
fibres such as glass,
aramide and carbon
(particularly when
using weft-insertion
techniques).
A wide variety of
fabric constructions
Large working widths.
The fabric is elastic
but it can keep its
shape.
.
24. Classification of WARP knitting
machine
• There are two types of warp knitting
machines – Tricot or Raschel.
• The Tricot machine makes fabrics
that are less complicated, finer in
gauge and more rapidly produced)
,while the Raschel machine has the
ability to make more complex
structures , but it is slower in
production speed
Raschel warp knitting machine
Tricot warp knitting machine
25. • Infographic Style
Raschel knits are produced
from spun or filament
yarns of different weights
and types.
Made out of conventional
or novelty yarns which
allows for interesting
textures and designs to be
created.
It is coarser than other
warp knit fabrics
Used for making lace
fabric and trimmings.
Tricot is very common fabric
for making lingerie
The right side of the fabric
has fine lengthwise ribs while
the reverse has
crosswise ribs.
.
A soft and 'drapey' texture
with some lengthwise
stretch and almost no
crosswise stretch.
.
Tricot fabric is soft, wrinkle
resistant.
Tricot Knits Raschel Knits
26. • Infographic Style
It is made from two sets of
yarn knitted diagonally, which
results in the face fabric
having a fine vertical rib and
the reverse having a diagonal
structure.
Milanese fabric is superior to
tricot in smoothness, elasticity,
regularity of structure & friction
resistance
It is stronger, more stable,
smoother and more expensive
than tricot.
Stitch-Bonding is a special form of warp
knitting and is commonly used for the
production of composite materials and
technical textiles.
The advantages of includes its
high productivity rate and the
scope it offers for functional
design of textiles, such as fiber-
reinforced plastics
.Fabrics produced with this process
offer the potential of using
“sensitive fiber materials such as
glass and carbon with only little
damage, non-crimp fiber orientation
and variable distance between
threads”.
Being used in fields as wind energy
generation and aviation.
.
Stitch-Bonding Knits Milanese Knits
28. Warp knitting can
be used in different
application areas
(Automotive,
Geotextiles
, construction and
components of bed,
Building, Filtration,
Sports , Safety and
Protection……)
.
Applications
And End-Uses
29. WEFT KNITTING WARP KNITTING
Plain, rib, interlock, purl Tricot, raschel, milanese, crochet etc.
Loops are produced along the width of fabric Loops are produced along the length of fabric
Less production speed More production speed
Not necessarily each needle has its own thread Each needle has its own thread
Yarn is supplied from a cone held on creel Yarn is supplied from a beam
Knitting process can be done from a single yarn
Large number of yarns are required for knitting a
fabric
Staple yarn is preferable but filament is also used
Filament yarns are preferable but staple yarns are
also used
Less preparatory processes are required More preparatory processes are required
Less variety of structure can be made Wide variety of structure can be made
Fabric has less aesthetic value Fabric has more aesthetic value
Fabric has good stretch ability in both directions,
higher in width direction
Fabric has low stretch ability in both directions,
higher in width direction
Dimension stability of fabrics is lower Dimension stability of fabrics is higher
Machines may be flat or circular Warp knitting machines are generally flat
Width wise more elastic Length wise more elastic
More shrinkage AND Easy snagging Less shrinkage AND Less snagging
Conclusion
30. Presented by
• Textile engineer
• Teaching Assistant in spinning waving and knitting
department applied arts helwan university
Email :eidomostafaa@gmail.com
Face book : https://www.facebook.com/mostafa.mohmoud.758
What's app :01154995545
eng.Mostafa Mahmoud Eid
Work Experience
31. Thank You
Formation and properties of knitted structures and
types of knitting machines
loop
Weft knitting