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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

By iHeartPodcasts

On Stuff You Should Know, Josh and Chuck explore the transformation of Play-Doh from a household cleaning product into one of the world's most popular children's toys. The story begins with the McVicker family's wallpaper cleaning company, Kutol Products, and follows their pivot when Kay Zufall noticed children using their non-toxic cleaner as a creative medium.

The episode delves into the science behind Play-Doh's distinctive properties, explaining the precise ratios of ingredients that give it its unique texture and consistency. It also tracks the product's evolution from a single off-white color to a diverse range of hues and themed playsets, including its adaptation to the digital age with iPad-connected 3D printers. The hosts explain how Play-Doh maintains its appeal through careful formulation of colors, scents, and textures.

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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

1-Page Summary

The History and Origin of Play-Doh

Play-Doh's journey from wallpaper cleaner to beloved children's toy began with the McVicker family's company, Kutol Products. When the demand for wallpaper cleaner declined due to the shift to natural gas heating, Joe McVicker, along with his sister-in-law Kay Zufall, discovered children using their non-toxic wallpaper cleaner to make Christmas ornaments. This discovery led McVicker to repurpose the product, adding an almond scent and partnering with Captain Kangaroo, who promoted Play-Doh on his show in exchange for 2% of gross sales.

The Chemistry and Ingredients Behind Play-Doh

Play-Doh's unique properties come from a careful blend of ingredients. The foundation consists of wheat starch and warm water, combined with petroleum as a lubricant to maintain its distinctive texture. The formula relies on a specific ratio of starches—25% amylose to 75% amylopectin—to achieve the perfect consistency. Surfactants help bind the lubricant to the starch, while additives like salt serve as preservatives and antimicrobial agents. The mixture also includes carefully formulated colors and fragrances to enhance its appeal to children.

Evolution and Expansion of Play-Doh

Originally available only in off-white, Play-Doh expanded to include red, blue, yellow, and white in the 1950s, with many more colors added in the 1980s. The introduction of the Fun Factory playset by General Electric engineers in 1960 marked the beginning of specialized sets and themed collections. Under Hasbro's ownership, Play-Doh has continued to innovate, offering everything from Disney Princess themed sets to pizza-making kits. The company has even embraced modern technology, introducing Play-Doh 3D printers that connect to iPads for digital design integration.

1-Page Summary

Additional Materials

Clarifications

  • Before natural gas heating, homes used coal or wood stoves that produced soot and residue on walls. Wallpaper cleaner was needed to remove this buildup. Natural gas burns cleaner, producing less soot and residue. This reduced the need for wallpaper cleaner products.
  • Captain Kangaroo was a popular American children's television host from the 1950s to the 1980s. His show had a large, loyal audience of young children and their parents. Promotion on his program gave Play-Doh widespread exposure and credibility. This helped Play-Doh become a trusted and well-known toy brand quickly.
  • Amylose and amylopectin are two types of starch molecules found in wheat. Amylose has a linear structure, which helps create firmness and elasticity in Play-Doh. Amylopectin is branched, contributing to softness and flexibility. The balance between them controls Play-Doh’s moldability and smooth texture.
  • Surfactants are molecules that have both water-attracting and water-repelling ends. They help mix substances that normally don't combine well, like oil-based lubricants and water-based starch. By surrounding lubricant molecules, surfactants keep them evenly distributed within the starch mixture. This prevents separation and maintains Play-Doh’s smooth, pliable texture.
  • Petroleum derivatives, like mineral oil, are used as lubricants in Play-Doh to keep the dough soft and pliable by preventing it from drying out. These substances are refined to be safe and non-toxic for use in children's products. They help maintain the dough’s smooth texture and prevent it from sticking excessively. This ensures Play-Doh remains easy to mold and fun to use over time.
  • Salt helps prevent the growth of bacteria and mold by creating an environment that is inhospitable to these microorganisms. It draws moisture out of microbial cells through osmosis, which inhibits their survival and reproduction. This extends Play-Doh's shelf life and keeps it safe for children to use. Additionally, salt stabilizes the dough's texture by controlling moisture levels.
  • In the mid-20th century, General Electric employed engineers skilled in plastics and manufacturing. They applied their expertise to design innovative toys, including the Fun Factory playset, enhancing Play-Doh's creative potential. This collaboration reflected a broader trend of industrial companies diversifying into consumer products. The Fun Factory allowed children to shape Play-Doh into various forms using mechanical presses and molds.
  • Play-Doh 3D printers are devices that extrude Play-Doh in precise shapes based on digital designs. Users create or select models on an iPad app, which sends instructions wirelessly to the printer. The printer then layers the Play-Doh to build three-dimensional objects. This technology combines traditional modeling with digital creativity for interactive play.

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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

The History and Origin of Play-Doh

The colorful and creative substance known today as Play-Doh has an unconventional history—initially starting as a wallpaper cleaner before becoming a beloved children's toy.

Play-Doh Started As a Wallpaper Cleaner by the McVicker Family, Later Repurposed For Modeling in the 1950s

Play-Doh: From Wallpaper Cleaner to Kids' Toy

The company behind Play-Doh, Kutol Products, founded by Joe McVicker's father and uncle, was initially known for its wallpaper cleaner, which was used to remove coal soot from walls. However, as homes began to adopt natural gas heating, the need for wallpaper cleaner declined. It was Joe McVicker who took over the company from his father, Cleo, and along with his sister-in-law, Kay Zufall, identified a new opportunity. They noticed that a non-toxic version of the wallpaper cleaner could be repurposed when they discovered that children were using it to make Christmas ornaments.

Joe McVicker Inspired by Kids Using Wallpaper Cleaner For Ornaments

Indeed, it was this creative use by children that inspired McVicker. Witnessing children make decorations from the wallpaper cleaner, McVicker saw potential for the substance to serve an entirely different market. This epiphany led to the rebirth of the wallpaper cleaner as Play-Doh, a non-toxic, malleable compound perfect for children’s play and modeling, which was officially created in 1950 and enhanced with a pleasant almond scent.

McVicker Developed a Non-toxic, S ...

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The History and Origin of Play-Doh

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Actionables

  • You can repurpose existing materials for new uses by examining everyday items in your home to see if they can serve a different function. For example, if you have old kitchen utensils, consider how they might be used for gardening or art projects, like turning a fork into a tool for creating patterns in clay or soil.
  • Explore local partnerships to promote a product or service by reaching out to community influencers or businesses with a proposal for mutual promotion. If you make handmade jewelry, you could offer a local boutique a percentage of sales in exchange for them showcasing your work prominently.
  • Donate your product or service t ...

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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

The Chemistry and Ingredients Behind Play-Doh

Understanding the properties of Play-Doh involves delving into the blend of chemical compounds and additives that give this popular toy its unique characteristics.

Play-Doh's Properties Rely On a Blend of Chemical Compounds and Additives

Play-Doh’s fundamental ingredients—a starch-based binder, water, and a lubricant—combine to create its distinctive pliable, non-sticky texture.

Play-Doh Ingredients: Starch, Water, Lubricant For Pliable, Non-sticky Texture

The formulation of Play-Doh begins with a mixture of wheat starch and warm water to create a gelatinous substance. To prevent the goo from drying out into a brittle material, a process known as retrogradation, a lubricant is added to the mix. Petroleum, as a lubricant, gives Play-Doh its moistness, ensuring that the substance remains malleable but doesn't stick.

Amylose and Amylopectin Ratio Forms Play-Doh's Foundation for Desired Consistency

Starches are polysaccharides, made of sugar molecules, and they form the structural basis of Play-Doh. The two primary types of starch in Play-Doh are amylose and amylopectin. Amylose tends to form straight chains, and amylopectin has a branched structure. The ratio of 25% amylose to 75% amylopectin is pivotal in achieving the ideal consistency for Play-Doh, preventing it from becoming either too dry or too sticky.

Surfactants Bind Lubricant to Starch, Ensuring Cohesion

Surfactants play a crucial role within the Play-Doh recipe by suspending mineral oil within the compound. These surfactants have both hydrophilic and hydrophobic ends, letting them attract water and fats, respectively. This is essential in maintaining a homogeneous mixture, keeping the lubricant from separating and ensuring a consistent texture.

Additives Enhance Shelf Life, Color ...

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The Chemistry and Ingredients Behind Play-Doh

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Actionables

  • Experiment with creating your own non-toxic play material by mixing cornstarch and conditioner in equal parts. This combination can mimic the pliable texture of Play-Doh without using wheat, making it a good alternative for those with gluten sensitivities. You can add food coloring for vibrancy and essential oils for a pleasant scent.
  • Use the concept of surfactants to make a homemade cleaning slime for electronics. Combine a small amount of dish soap, which acts as a surfactant, with a mixture of baking soda and water to create a dough-like substance. This can be used to gently clean keyboards and other devices, as the surfactant will help lift dirt without leaving residue.
  • Enhance your gardening r ...

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SYSK's 12 Days of Christmas… Toys: How Play-Doh Works

Evolution and Expansion of Play-Doh

Play-Doh has become a classic toy with a storied history of diversification and innovation that has stimulated children's creativity through various colors, sets, and themed collections.

Play-Doh: Decades of Diversification and Innovation

Originally available only in an off-white color, Play-Doh introduced its first colors in the 1950s: red, blue, yellow, and white. These foundational hues remained the only options until the 1980s, when the company expanded the palette to encompass a galaxy of colors, capturing every part of the rainbow and allowing children to express themselves with a broader range of shades.

Specialized Sets and Themed Collections from Hasbro

Engineers from General Electric designed the Fun Factory playset for Play-Doh in 1960, which was the beginning of Play-Doh's expansions into specialized sets and themed collections under the Hasbro brand. The Fun Factory is a hand-pushed extruder that molds Play-Doh into various fun shapes, such as strands resembling spaghetti or thick ropes. There has been much jest about the amount of Play-Doh sold over the years and what it would amount to if all Play-Doh ever sold were extruded into one continuous rope through the Fun Factory.

Further expanding into licensing deals, Play-Doh now offers the ability to create dresses for Disney Princesses with its Play-Doh Disney Princess set. The tradition of making fake food has also been an enduring part of the Play-Doh experience, boasting sets where children can craft replicas of Pizza Hut pizzas or use sweeter, squishier textures of Play-Doh to simulate frosting in a sweet shop line.

Classic Play-Doh Formula Endures Amid Modern Innovations

Even whi ...

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Evolution and Expansion of Play-Doh

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Actionables

  • You can foster creativity in children by organizing a Play-Doh color-mixing workshop where they learn to blend primary colors to create their own unique palette. Explain the basics of color theory and let the kids experiment with mixing different amounts of Play-Doh to discover new shades and hues, which can then be used to craft original creations that they can take home.
  • Encourage imaginative storytelling by setting up a "Play-Doh World" challenge for children, where they pick a theme and create a scene or story using only Play-Doh and household items. For example, they could choose a jungle adventure and mold animals, trees, and a landscape, using cardboard boxes for mountains or a blue fabric for a river, thereby combining tactile play with narrative skills.
  • Introduce a "Sensory Exploration Day" using Play-Doh, where participants en ...

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