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3D-Knitting: The Ultimate Guide

Completely seamless, removing waste while increasing strength and comfort.

Knitted fabric coming off the machine in one continuous piece
The knitting floor, rows of computerized machines with their yarn cones

What Is 3D-Knitting?

The term itself sounds sci-fi, so what exactly do we mean by 3D-knitting? Well, this method of garment making relies on the world’s most advanced computerized knitting machines, known as Wholegarment machines. It’s in the name; these machines are capable of knitting a whole garment seamlessly with little to no human input.

The process begins with a three-dimensional digital model, similar to what you’d encounter in a CAD (computer-aided design) program. Once a design is created, it can be transferred, downloaded, and knit on any 3D-knitting machine, anywhere.

Simply put, the machines work by utilizing 4 beds of needles. The computer reads the program and determines which needle needs to do what as we run yarn across the top of each bed. One of the beds might be knitting the arm, while another knits the body, while another connects the body with the arms.

This approach allows us to use 99% of the material intended for the sweater.

Seamless

Prints whole sweaters.

Zero Waste

No wasted materials.

Durability

No points of breakage.

Comfort

Forms to your body.

Inventory-less

0 inventory, 0 waste.

Finesse

Customize any sweater.

A knit design on screen at the programming station
The needle beds and yarn feeders a 3D-knitting machine works with

Why Use 3D-knitting?

If you’re anything like us, you’ve probably watched the rise of fast fashion with a knot in your stomach. Yes, the mechanization of clothing manufacturing has allowed everyday consumers to enjoy more choices than ever, but it also carried a decrease in quality and an immeasurable negative impact on the environment. In the next 10-20 years, we think the world will look back on fast fashion with a great degree of disgust and bafflement.

The era of slow fashion is upon us, ushered in by Wholegarment technology or, as we like to call it, 3D-knitting. Imagine if we could make clothing on demand that’s more comfortable, stronger, and better fitting, all while producing less than 1% waste. That’s what 3D-knitting enables, and here’s what you should know about the future of fashion.

  • Without seams, 3D-knitting produces garments with superior durability.
  • The finesse of 3D-knitting machines adjusts every stitch for ideal style/fit.
  • At 99% efficiency, 3D-knitting is far more sustainable than cut-and-sew.

Knitting a garment whole instead of cutting it out of fabric and sewing it back together is a single decision, and everything above follows from it. Here is what that decision is worth, measured. Every figure below is stated somewhere in this guide.

The material wasted when a sweater is knit in one piece
<1%
The fabric a typical cut-and-sew factory throws away
30%
The electricity saved compared with a cut-and-sew factory
43%
How much lighter a seamless sweater is
10%

That is what knitting a sweater in one piece gets you: almost nothing cut away, and nothing made before somebody has ordered it.

A knitted panel hanging from the machine that made it

When Was 3D-Knitting Invented?

The concept of 3D-knitting was first envisioned and then developed by the Japanese company SHIMA SEIKI. They launched their first WHOLEGARMENT knitting machine at the ITMA trade fair in 1995.

This was an incredible achievement because, unlike 3D-printing of a solid structure, 3D-knitting involved creating a product with dynamic stability and multiple planes that must work together flawlessly.

The founder of SHIMA SEIKI, Masahiro Shima, known as the “Thomas Edison of Wakayama”, received a patent for a glove knitting machine at the age of 16. This machine proved to be the inspiration for the first wholegarment machine some 40 years later.

SHIMA SEIKI continued to hone its technology over the next quarter-century. The result of their quest is that, here at Oliver Charles, we are able to create beautiful products for you using the 5th generation of their advanced 3D-knitting machines, affording expressive designs and seamless clothing with sustainable silhouettes as never before.

A knitting machine mid-run with a knit panel on the bed

What Are Some Of The Alternatives To 3D-Knitting?

Let’s explore 3D-knitting’s predecessors and why we believe it’s destined to be remembered as the apparel industry’s next evolutionary step.

Four garment manufacturing methods compared on cost, waste, labor and durability
Measure 3D-Knitting Cut-And-Sew Flatbed Knitting Circular Knitting
Knit Cost/Unit High Low Mid-Level Very Low
Waste Created Very Low High Low Low
Labor Intensity Low Very High Very High Mid-Level
Durability Very High Mid-Level Mid-Level High
A conventional garment factory floor, rows of machines and operators
A circular knitting machine producing a continuous tube of fabric

Pros And Cons Of Traditional Cut-And-Sew

Pros: cut-and-sew manufacturing is very cheap when used to produce large quantities of garments.

Cons: cut-and-sew techniques are very labor-intensive, requiring assembly lines of generally underpaid workers. These operations generate a lot of waste because they require a pattern cut out of a rectangular piece of fabric.

Typically 30% of the fabric is wasted. When quality is not prioritized, garments can come apart quickly. Everything breaks at the seams.

Diagram comparing two panel layouts side by side: cut-and-sew knitwear, whose back, front and sleeves are cut separately and joined at the seams, against fully fashioned knitwear, whose pieces are knit to shape

Pros And Cons Of Flatbed/Fully Fashioned

Pros: flatbed knitting, otherwise known as 2D-knitting, involves far less waste than cut-and-sew production because each garment component is created to size and shape. 2D-knitting is a cheap way to produce in large quantities.

Cons: because each item is made from several flat parts, the challenges of low-quality seams and human error remain. Also, similar to cut-and-sew, it’s also very labor intensive requiring large assembly lines.

A worker feeding yarn into a knitting machine by hand

Pros And Cons Of Circular Knitting

Pros: circular knitting creates tubes of fabric, like a sock or a sweater body, resulting in a stronger garment with fewer vulnerabilities thanks to the fewer seams.

Cons: circular knitting tends to create generic fits due to fixed machine sizes, plus seam vulnerability continues where the garment is joined, for example, in the addition of sleeves.

The finished knit worn, with no seams running through the fabric

Is 3D-Knitting Better For The Consumer?

We mentioned that 3D-knitting creates stronger seamless clothing, but what makes this technology so exciting? Well, with this tool, we can explore endless design capabilities because various stitches can be placed within a single garment. For example, a jersey knit, rib knit, or jacquard knit can transition into a mesh knit to create targeted ventilation. And just about any other permutation imaginable, whether functional or purely aesthetic.

Traditional clothing manufacturing often yields flawed results due to inconsistent cuts caused by shifting fabric layers, raw edges unraveling due to improper hemming, and seam pinching due to imprecise sewing.

In contrast, 3D-knitting technology facilitates perfectly realized garments that are, on average, 10% lighter than their seamed counterparts. Ultimately, consumers can enjoy higher-caliber apparel with a clear eco-friendly conscience.

Most important 3D-knitting offers the promise of customization, or as we call it, the chipotle effect. Size and fit are the number one reasons people return clothes purchased online and in person.

In the next few years, maybe even months, we’ll be able to solve that problem for good. Since 3D-knitting allows us to knit on demand, we’ll soon be able to offer every size imaginable in every style, material, and color.

How much of the fabric is thrown away

Share of material wasted making one garment. Lower is better.

  • Cut-and-sew 30%
  • 3D-knitting under 1%
Cutting a garment out of flat fabric means paying for cloth nobody ever wears. Knitting the shape instead is why a sweater made this way starts from almost nothing wasted, and why it can be made only once somebody has ordered it.

Inventory-Less Knits

We imagine a future where we switch to producing only what we need, when we need it, and nothing more. Through 3D-knitting, on-demand production is possible. It works like this:

  • After careful consideration, you order a comfortable 3D-knit sweater.
  • Our 3D-knitwear partners in Brooklyn get pinged the details.
  • The 3D-knitting machine starts its engine and knits your sweater.
  • After seamlessly knitting your sweater, it’s plucked and beautifully packaged.
  • Without ever sitting as inventory, the sweater is off to become your go-to.
Two people setting up a stitch file at the workstation
A worker threading yarn cones at a knitting machine

Does 3D-Knitting Cost More?

3D-knitting can’t compete with the cost of manufacturing most throw-away fast fashion products on the shelves, which is a good thing. Companies like ours that invest in creating beautiful, zero waste seamless clothing for forward-looking customers are driving the accessibility of 3D-knitted garments for everyone.

We anticipate that a 3D approach will soon exceed 2D-knitting in realizing better-quality clothing with greater longevity for less.

As the transition towards the future of fashion progresses, 3D-knitting is projected to save up to 40% of production costs compared to flatbed 2D-knitting.

Excitingly, price points have already become very competitive when we compare 3D-knitted products to those of similar character from a more traditional outlet.

For example, around 150 garments are brought to life in our 3D-knitting factory daily with only a six-person team. In contrast, the same number of items made at a cut-and-sew facility would call for roughly 30 operated sewing machines!

The factory floor, worked by a team of six

How Sustainable Is 3D-Knitting?

3D-knitting requires less raw material, produces less waste, and opens the door to an inventory-less future. The technology plays an important sustainability role because 35% of material in the global supply chain ends up as waste. That equates to approximately 36 billion pounds of lost fabric potential, which is 50x as heavy as the Empire State Building!

In addition to waste reduction, 3D-knitting factories are far more energy efficient, requiring 43% less electricity than a traditional cut-and-sew facility.

This is just the beginning; if you think 3D-knitting is futuristic, wait until you encounter 4D knitting and even 5D knitting. These technologies will facilitate things like knitting electrical wiring, sensors, composites, and other components into designs or creating fabrics that can change from one form to another and then back again.

So there you have it. A new era of clothing manufacturing is upon us. Quality seamless clothing that is zero waste, durable, and exceptionally wearable is not just on the way; it’s already arrived. And if you thought fast fashion was the end of the line, take heart because there is so much more yet to explore.

Tour Our 3D-Knitting Factory In Brooklyn, NY

We 3D-knit our sweaters in Industry City, Brooklyn, supporting the resurgence of US knitwear manufacturing.

  1. A member of the team at the Brooklyn factory
    Step 01

    Welcome!

    We knit our sweater with the world’s leading 3D-knitting manufacturer and bold inventor of on-demand manufacturing.

  2. The factory floor itself, small for what leaves it each day
    Step 02

    Small But Mighty

    Our 3D-Knitting factory is small, especially compared to the number of knitted garments produced here daily.

  3. A stitch program on screen, the garment mapped out panel by panel
    Step 03

    Starts With Programming

    Highly skilled professionals use special software to manipulate each individual stitch - like building LEGO blocks.

  4. A machine set up by hand, yarn threaded through to the needle beds
    Step 04

    Setting Up The Machine

    Meticulously precise arms feed yarn into the machines ever so slightly, automatically adjusting the tension, quantity, and color.

  5. The carriage running over the needle beds
    Step 05

    3D-Knitting The Design

    The “carriage” intakes the yarn and guides it over the various beds of needles. With each pass, a knitted sweater grows by one row.

  6. A knit taking shape on the machine roller
    Step 06

    The Sweater Takes Shape

    A sweater emerges! Reusable yarn on the base of the knit gives information on the size and style of the newly printed sweater.

  7. Hands mending the tie-on point by needle
    Step 07

    Finishing The Knit Sweater

    A worker removes the yarn at the base and mends the tie-on and tie-off points to seamlessly blend in with the rest of the knit.

  8. A finished knit checked over a light table
    Step 08

    Inspecting For Defects

    We check by pulling the sweater over a large light. Defects typically occur when a stitch is dropped or the yarn breaks in the machine.

  9. Repair work at the bench, where a defect is mended or the yarn unwound
    Step 09

    Fixing Defects

    Defects are fixed with a mend or re-knit. For sweaters that are beyond repair, we unwind them and use the yarn to make beanies.

  10. Sweaters in the wash cycle that removes the protective wax
    Step 10

    Washing Finished Sweaters

    Each sweater is washed on a specific cycle to remove a wax that protects yarn as it runs through the 3D-knitting process.

  11. Finished knits measured and set aside after pressing
    Step 11

    Dried And Pressed

    After washing, the sweaters are dried and measured to ensure they meet the correct specs. Then set aside to await labels.

  12. A label tacked on at a conventional sewing machine
    Step 12

    Tacking On Labels

    We use a conventional sewing machine for this step. After that, they are ready to be shipped off to lucky customers worldwide.

  13. Sweaters rolled into their shipping tubes
    Step 13

    Ships In Eco-Friendly Tubes

    The final step is rolling the sweater and sliding it neatly into a tube to protect it from the vastness of the global supply chain.

  14. The finished sweater worn
    Step 14

    Future Of Knitwear

    About 6 people are involved in the whole process; from programming to shipping, it’s a highly automated and sustainable operation.

3D-Knitting FAQ

Is 3D-Knitting The Same Thing As 3D-Printing?

No, and the difference is what made it hard. 3D-printing builds up a solid structure layer by layer. 3D-knitting has to create a soft, flexible, three-dimensional shape out of a single continuous yarn, with no seams anywhere in it. That is why the technology took a quarter of a century to mature after the first patent, and why it arrived long after 3D-printing did.

Who Invented 3D-Knitting?

The Japanese company SHIMA SEIKI. Its founder, Masahiro Shima, known as the “Thomas Edison of Wakayama”, received the patent for the technology and the company spent the next twenty-five years refining it. The machines are sold as WHOLEGARMENT machines. 3D-knitting is what we call the method they use.

How Much Fabric Does Traditional Manufacturing Waste?

About 30% of it. Cut-and-sew production cuts garment pieces out of flat fabric, and everything outside those shapes is offcut. 3D-knitting uses 99% of the material intended for the sweater, because the machine knits only the shape and never cuts anything away from it.

Does A 3D-Knit Sweater Cost More To Make?

Yes, and that is deliberate. Knitting a finished garment in one piece, in Brooklyn, on the gold-standard Japanese machines costs more per sweater than cutting and sewing panels somewhere cheaper. What it buys is a sweater with no seams to come apart, knit only once somebody has ordered it, and covered by a lifetime repair guarantee.

Where Are Oliver Charles Sweaters Knit?

In Industry City, Brooklyn, New York, with the leading 3D-knitting manufacturer in the world, as part of the resurgence of US knitwear manufacturing.

Is 3D-Knitting Actually More Sustainable?

Yes, in three ways. It uses 99% of the material instead of wasting about 30% of it, and the factories run on 43% less electricity than a traditional cut-and-sew facility. And because a garment is knit on demand from a digital file, it never has to sit as inventory waiting to be wanted, which is where a great deal of clothing is wasted before anyone wears it.

Oliver Charles knits every sweater in one piece, in Brooklyn.

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