The paper bag is such an ordinary part of daily life that almost nobody stops to think about it. You get handed one at a grocery store or retail counter, you carry your things home in it, and it ends up recycled, reused, or forgotten in a drawer. But that unremarkable object is actually the product of more than a century of engineering, manufacturing breakthroughs, and shifting retail habits, and the story of how it came to be is a lot messier than a single date of invention would suggest.
So, when were paper bags actually invented? There isn’t one clean answer.
Commercial paper bags were already being produced before the automated machinery we’d recognize today existed. Packaging historians point to Bristol, England, around 1844 as one of the earliest examples of commercial paper-bag manufacturing. In the U.S., Francis Wolle patented a bag-making machine in 1852. Nearly two decades later, Margaret E. Knight developed the machinery that made flat-bottomed bags practical, earning her a patent in 1871. Charles Stilwell then refined the design further in the 1880s, adding pleated sides and creating what became known as the Self-Opening Sack, or S.O.S. bag.
In other words, the paper bag wasn’t invented; it evolved through the work of several people solving different pieces of the same problem.
The Short Version
- Commercial paper bags were being made in Bristol, England, by 1844
- Francis Wolle patented an automated bag-making machine in the U.S. in 1852
- Margaret E. Knight patented her flat-bottomed bag machine in 1871, making bags far more practical for retail use
- Charles Stilwell’s later work introduced the pleated, square-bottom S.O.S. design
- Paper bags grew increasingly essential as mass retail and self-service shopping took off
- Handles, printing, and stronger paper expanded their use throughout the 20th century
- Plastic bags eventually overtook paper for a stretch
- Concerns over plastic waste have brought paper packaging back into focus
- Today’s paper bags blend century-old design principles with modern materials and manufacturing
A Timeline of Paper Bag History
| Year | Development | Why It Mattered |
| 1844 | Commercial paper bags are produced in Bristol, England | Mark’s early commercial use of paper bags |
| 1852 | Francis Wolle patents a paper-bag-making machine | A major step toward automated production |
| 1871 | Margaret E. Knight patents her paper-bag machine | Flat-bottomed bags become practical |
| 1883 | Charles Stilwell patents a square-bottomed, pleated bag design | Foundation of the S.O.S.-style bag |
| Early 1900s | Paper bags become standard in mass retail | Packaging becomes part of the shopping experience |
| 1912 | Walter Deubener introduces a handled shopping bag | Carrying multiple bags gets easier |
| Mid-1900s | Paper dominates most retail packaging | Becomes the default shopping container |
| Late 1900s | Plastic bags expand rapidly | Paper faces serious competition |
| 21st century | Renewed interest in recyclable, renewable packaging | Paper regains ground |
What Came Before the Paper Bag?
Before standardized bags existed, retailers relied on whatever containers were available: baskets, wooden boxes, cloth sacks, and crude paper wrappers. Loose goods like flour, seeds, sugar, and other dry staples were usually wrapped on the spot or scooped into makeshift paper containers that happened to work that day.
The paper itself was nothing new by this point. What actually changed during the Industrial Revolution was the ability to produce paper products quickly, consistently, and cheaply enough to matter commercially. As factories multiplied, transportation networks expanded, and cities grew, retailers suddenly needed a lot more packaging than they ever had before, and they needed it to be affordable.
A shopkeeper didn’t just need paper. They needed something that could be manufactured fast, filled easily, carried without falling apart, and produced cheaply enough to make business sense. That was the real problem the 19th century needed to solve.
1844: Early Commercial Bags in Bristol, England
One date that often gets overlooked in this story predates the American patents everyone talks about. Packaging historians identify 1844 as an important early moment for commercial paper-bag production in Bristol, England, a reminder that this story doesn’t start with a single American inventor.
The bags being made at the time looked nothing like today’s grocery bags. Cutting, folding, and gluing paper by hand limited what was possible, so the real challenge wasn’t dreaming up the concept of a bag; it was figuring out how to make large quantities of consistent ones. That challenge is exactly what pulled American inventors into the picture over the following decades.
Francis Wolle’s Machine (1852)
Francis Wolle deserves real credit here because he helped shift bag production from a mostly manual craft into something closer to mechanized manufacturing. On October 26, 1852, he received U.S. Patent No. 9,355 for a “Machine for Making Bags of Paper or Other Material” — machinery built to automate several steps of forming a paper bag at once.
Wolle had hands-on experience in paper manufacturing, which gave him a practical understanding of both the material and the machinery needed to work it. His invention answered a growing commercial question: how to supply retailers with large numbers of cheap bags without making each one by hand.
That shift in thinking mattered more than it might seem. Instead of treating every bag as an individually crafted object, Wolle’s machine treated bag-making as a continuous process paper fed through machinery, shaped, folded, and turned out at a speed no one could match by hand.
Still, his design had a real limitation. The bags it produced looked more like paper envelopes than the sturdy grocery bags we know today no flat, stable bottom, which made them awkward to fill. A retail clerk had to hold the bag open with one hand while loading it with the other. Wolle had cracked the manufacturing problem. The design problem was still waiting for someone else.
Margaret E. Knight and the Flat-Bottomed Bag (1871)
If there’s one person most associated with the modern grocery bag, it’s Margaret Eloise Knight. Born in York, Maine, in 1838, she showed mechanical talent early she started working in a cotton mill as a child and went on to become a prolific inventor. That hands-on factory experience gave her a real, practical understanding of machinery and manufacturing problems most engineers of her era simply didn’t have.
While working at the Columbia Paper Bag Company in Springfield, Massachusetts, she ran into the same problem retailers had been dealing with for years: existing bags didn’t have a stable, flat base, which made packing goods slow and clumsy. She set out to fix it.
According to the Lemelson-MIT Program, Knight developed her paper-bag machine in the late 1860s and had to fight to keep credit for it after a man named Charles Annan tried to claim the invention as his own. Her original drawings and notes ultimately proved her authorship, and she was granted U.S. Patent No. 116,842 on July 11, 1871, for an improved paper-bag machine capable of forming flat or satchel-bottom bags from a continuous paper tube.
The improvement went well beyond simply forming a paper tube. Her machinery folded and shaped the bottom through a series of mechanical steps, producing a bag that could actually stand upright on its own. Once opened, a small mechanical detail with huge practical consequences.
Picture a clerk trying to fill one of the old envelope-style bags: one hand holding it open, the other trying to load groceries in, the whole thing threatening to collapse. A flat-bottomed bag could just sit on the counter, stable and open, ready to be filled with several items at once. It wasn’t a cosmetic tweak it genuinely changed how retailers, clerks, and customers interacted with packaging.
Knight’s fight to defend her invention is also worth remembering on its own terms. Mechanical engineering and industrial invention were overwhelmingly male-dominated fields in the 1800s, and she still managed to establish herself as the rightful inventor using her own documentation. She went on to hold dozens of patents over her lifetime, but the paper-bag machine remains her best-known achievement.
Wolle vs. Knight, at a Glance
| Francis Wolle | Margaret E. Knight | |
| Year | 1852 | 1871 |
| Main contribution | Automated bag-making machinery | Flat-bottomed bag-making machinery |
| Bag shape | Envelope-style | Flat or satchel-bottom |
| Could it stand upright? | Not really | Yes |
| Retail impact | Faster production | Easier filling and carrying |
| Legacy | Mechanized the process | Established the practical grocery-bag shape |
So when someone asks who invented the paper bag, the honest answer is: no single person did. Wolle mechanized production. Knight solved the structural problem. Others kept refining it from there.
Charles Stilwell and the S.O.S. Bag
Knight’s flat-bottom design was a major leap forward, but the story didn’t stop there. During the 1880s, Charles B. Stilwell worked on further improvements to paper-bag machinery, focused specifically on adding pleated sides to the bag’s construction.
That work became the basis for what’s still known today as the Self-Opening Sack, or S.O.S. bag. Historical sources point to June 12, 1883, as a key patent date connected to Stilwell’s square-bottomed sack, which could fold flat for storage and pop open easily when it was time to fill it. The Museum of Modern Art credits Stilwell’s work from around the same period as a crucial step in the further development of the flat-bottomed bag, largely thanks to its pleated sides, which made the bags dramatically easier to fold, stack, and store.
The key innovation was really a combination of features working together: a square or flat bottom, pleated sides that let the bag expand when opened but lie flat when stored, and a design that could be produced and stacked in large volumes without eating up shelf space. A retailer could keep a huge stack of these bags on hand and pop one open in seconds when a customer needed it.
That basic design, flat bottom, pleated sides, quick to open, is still exactly what you’ll find in a paper grocery bag today.
None of this success came from how the bag looked. It came from how well it worked. Retailers wanted something cheap, compact to store, quick to open, sturdy enough for everyday goods, and easy to mass-produce. Stilwell’s design checked nearly every box at once. It’s a good example of how packaging tends to improve: not through a single dramatic breakthrough, but through a series of smaller refinements that add up over time.
Paper Bags and the Rise of Modern Retail
The paper bag’s development aligned almost perfectly with major shifts across American and European retail. As cities grew and department stores multiplied through the late 1800s and early 1900s, packaging stopped being an afterthought and started becoming part of the shopping experience itself.
Retailers weren’t just selling products anymore; they were selling presentation, convenience, and eventually branding. The paper bag fits that shift well. It was cheap, light, and could be printed with a store’s name or logo, which meant a customer walking down the street with a shopping bag was, without really thinking about it, carrying a small piece of advertising for that store.
That printed surface turned the bag into something more than packaging it became a communication tool. Store names, logos, addresses, slogans, and brand colors could all live on that surface, which meant packaging didn’t just disappear the moment someone got home. It traveled through streets, offices, and neighborhoods, quietly building brand recognition along the way.
1912: Deubener Adds Handles
Another meaningful improvement came from Walter Deubener, a grocer working in St. Paul, Minnesota. Deubener came up with a design that used cord to reinforce the bag and give it carrying handles, making it much easier for shoppers to manage more than one bag at a time.
By this point, the question driving innovation had shifted. It wasn’t “can we make a paper bag” anymore; that had been solved decades earlier. It had become “how do we make this easier for actual people to use?” The progression from envelope bags to flat-bottomed bags to pleated S.O.S. bags and finally handled shopping bags shows packaging design responding directly to how people actually shopped.
Paper Bags and the Self-Service Grocery Store
One of the bigger shifts in retail history was the move to self-service grocery shopping. Once customers started picking out their own items instead of handing a list to a clerk, stores needed a simple way for shoppers to gather and carry their purchases themselves.
The paper bag fit that role perfectly. Instead of waiting on a clerk to package each item individually, shoppers could just load their own bag as they went, effectively making the bag part of the self-service system itself, not just a container for it. That’s really why the story of the paper bag is tied so closely to the story of modern retail: packaging let stores serve customers faster, while customers gained more independence in how they shopped.
Custom Bags and Brand Identity
Retailers today treat their packaging as a genuine extension of their brand, not just a functional afterthought. A paper bag communicates a lot more than a store’s name its color, texture, typography, handle style, dimensions, and finish all shape how customers perceive the business behind it.
A premium retailer might invest in thick, high-quality paper, elaborate printing, and rope or twisted-paper handles. A bakery or food business will usually prioritize grease resistance and food-safe materials. A grocery chain cares more about raw strength and capacity. And plenty of small businesses use custom-printed bags as a genuinely cost-effective marketing tool. This is exactly where The Premier Packaging comes in, offering tailored paper bag solutions for each of these needs, from elegant retail packaging to sturdy, food-safe options for bakeries and grocers. In every case, the paper bag has moved well beyond “container” and become part of the actual customer experience.
From Grocery Bags to Industrial Packaging
Paper bags didn’t stay confined to grocery stores. As industrial production ramped up through the 20th century, manufacturers developed heavier-duty paper sacks for far more demanding uses, everything from flour and grain to construction materials.
Multiwall paper sacks became especially important here, offering enough strength to start replacing traditional cloth sacks in some industrial settings. That was a real shift in what paper packaging even meant. It wasn’t just a lightweight retail convenience anymore it had become a legitimate industrial packaging technology in its own right.
Printing Turns Bags Into Advertising
As bag-making and printing machinery both advanced, the commercial value of the paper bag grew right along with it. By the early 1900s, manufacturers had developed ways to print directly onto bags as part of the production process. Packaging historians often cite 1905 as a milestone for automated, in-line-printed paper bags.
That shift mattered a lot for branding. Companies no longer needed to slap labels onto finished bags after the fact; printed designs could be built directly into the manufacturing process. At that point, the paper bag had effectively become three things at once: a container, a carrier, and an advertisement. That combination is still central to how retail packaging works today.
The Rise of Plastic and Why Paper Came Back
Paper held its position as the dominant shopping-bag material for most of the 20th century. But plastic eventually changed the equation. It was lighter, cheaper, resistant to moisture, and took up far less storage space, advantages that mattered a lot as supermarkets and big retail chains kept expanding. By the late 1900s, plastic had become the default single-use shopping bag in most markets, and “paper or plastic” had become a genuine checkout-line question.
For a while, it looked like the paper was losing.
Then the environmental cost of plastic began to catch up with its reputation. The same durability that made plastic so convenient became a liability once discarded bags started piling up in landfills and oceans. As public awareness of plastic pollution and microplastics grew, paper’s different end-of-life profile, made mostly of cellulose fibers, recyclable through existing paper systems, and biodegradable under the right conditions, started to look a lot more appealing again.
That said, it’s worth resisting the temptation to call paper automatically “the green choice.” A fair comparison has to look at the whole life cycle of each material: raw material sourcing, manufacturing energy and water use, transportation, how many times a bag actually gets reused, local recycling infrastructure, and how it’s ultimately disposed of. Paper production tends to use more energy and water per unit weight than plastic production, even as it offers real advantages in renewability, recyclability, and biodegradability. The honest answer is that a bag’s environmental impact depends on its full life cycle material, manufacturing, use, and disposal, not on which category it falls into.
The Modern Paper Bag
A paper bag might look simple sitting on a store counter, but the manufacturing behind it has gotten genuinely sophisticated. Today’s paper packaging can be engineered for higher tensile strength, better tear resistance, sharper print quality, greater load capacity, moisture resistance, a range of handle styles, multiple sizes, recycled or virgin fiber content, food-safe applications, and strong retail branding, often all at once.
Modern kraft paper is a good example of how far this has come, offering serious strength while still keeping the final product lightweight. Products like Kraft landscape paper bags show how traditional materials and modern printing and structural design now work together seamlessly.
Manufacturing and Sustainability Today
Modern manufacturers now have access to far more precise equipment for cutting, folding, gluing, printing, and forming bags, enabling them to produce large volumes consistently with a fraction of the manual labor required by earlier generations.
Sustainability has become a major research focus alongside that efficiency push. Manufacturers are increasingly working with recycled fibers, responsibly sourced virgin fibers, lightweighting techniques, water-based inks, repulpable coatings, alternative natural fibers, and improved recycling systems overall, all aimed at reducing manufacturing waste without sacrificing performance. Businesses in this space increasingly operate in a market where customers expect packaging to balance good looks, real functionality, and genuine environmental responsibility all at once.
Why the Paper Bag Has Lasted More Than 170 Years
What’s genuinely remarkable about the paper bag isn’t that someone invented it, it’s that the basic design has stayed useful for well over a century and a half. The reason is simple: the core problems it solves haven’t gone away. People still need packaging that’s affordable, lightweight, easy to carry, simple to manufacture, printable, stackable, and recyclable wherever the infrastructure supports it.
That’s why the paper bag isn’t some outdated relic; it’s a genuine example of a design that keeps adapting to whatever economic or environmental pressure comes its way.
The Three Inventors Who Shaped Paper Bag History
Francis Wolle (1852) Mechanized bag production for the first time, with a patented machine that automated multiple steps of the bag-making process.
Margaret E. Knight (1871) solved the structural problem, patenting machinery that produced flat, stable bags that could stand upright and hold merchandise far more practically.
Charles Stilwell (1880s) refined the design further, developing the square-bottomed, pleated-side format that became the enduring S.O.S. bag.
Between the three of them, it’s clear why no single name fully answers “who invented the paper bag.” Each one solved a different piece of the same ongoing problem.
Frequently Asked Questions
When were paper bags invented? There’s no single invention date. Commercial paper bags were being manufactured in Bristol, England, by 1844, and Francis Wolle received a U.S. patent for a paper-bag-making machine in 1852. The grocery-bag form we recognize today developed later, mainly through Margaret Knight’s flat-bottomed design in 1871 and Charles Stilwell’s refinements afterward.
Who invented the paper bag? It depends on which stage you mean. Francis Wolle is credited with early automated bag-making machinery, Margaret E. Knight with the practical flat-bottomed bag, and Charles Stilwell with the square-bottom, pleated S.O.S. design that followed.
Was Margaret Knight the inventor of the grocery bag? She’s widely credited with inventing the machine that produced flat-bottomed paper bags, one of the most important steps toward the modern grocery bag. Her 1871 patent covers machinery for manufacturing flat or satchel-bottom bags.
What did Francis Wolle invent? Wolle patented a machine for making bags from paper or similar materials in 1852, helping push bag manufacturing toward automation for the first time.
What is an S.O.S. paper bag? S.O.S. stands for Self-Opening Sack. It refers to bags with square or flat bottoms and pleated sides, designed to store flat and pop open into a stable shape when needed.
Why are paper bags flat at the bottom? A flat bottom lets the bag stand upright on its own and creates more stable interior space for holding merchandise a major upgrade from the earlier envelope-style bags.
When did paper bags become popular? They grew steadily more important through the late 1800s and early 1900s, as mechanized manufacturing, department stores, and eventually self-service grocery shopping all expanded together.
Why did plastic bags replace many paper bags? Plastic was lighter, cheaper, more compact to store, and moisture-resistant, advantages that made it attractive to retailers as supermarkets and chain stores grew, which cut significantly into paper’s market share for a few decades.
Are paper bags recyclable? Many are, but it depends on local recycling infrastructure and what the bag is made of. Coatings, food residue, or mixed materials can complicate or limit recyclability.
Are paper bags biodegradable? Generally, yes, since paper is mostly cellulose fiber — but how completely and how quickly it breaks down depends on environmental conditions and whatever coatings or inks were used.
Where Paper Bags Go From Here
The story of the paper bag isn’t finished. The next chapter probably won’t involve one dramatic invention; the way the 1800s did it’ll more likely come from a steady accumulation of smaller improvements. Manufacturers are already working on stronger papers that use less raw material, more efficient recycling systems, and coatings that add functionality without making the bag harder to recycle. Digital printing is also opening up real customization options for smaller businesses that never had access to such flexibility before.
At the same time, more consumers are paying attention to where their packaging comes from and what happens to it after use. That’s likely to push future paper bags toward a fuller sustainability model, responsible sourcing, efficient manufacturing, a genuinely useful service life, and recovery or recycling that feeds back into new material. That’s a meaningful shift away from a simple “use it once and toss it” model, and toward something closer to a circular economy.
The Bottom Line
The paper bag’s history isn’t a single invention; it’s a chain of them. Commercial paper bags were already in production in England by 1844. Francis Wolle’s 1852 patent helped mechanize the process in the U.S. Margaret Knight’s 1871 invention gave the bag its practical flat-bottomed form. Charles Stilwell and others kept refining the design, eventually landing on the pleated, square-bottomed S.O.S. shape still in use today.
Later developments layered on printing, stronger materials, handles, automated manufacturing, and specialized designs for different industries. Plastic eventually pulled much of that market away for a few decades, but the same qualities that made paper useful in the first place (its versatility, its printable surface, its adaptability, and its fiber-based makeup) are exactly what have brought it back into focus.
