Ayrton Oneill
Basketballs are nearly always made with an inflatable inner rubber bladder, wrapped in layers of fiber, and covered in leather, rubber, or a synthetic composite. The traditional color scheme of basketballs is an orange surface with black ribs and a possible logo, but they are sold in various colors. The orange color is described as a light medium bright shade of red, with high lightness and medium saturation.
| Characteristics | Values |
|---|---|
| Material | Leather |
| Leather Type | Genuine leather |
| Leather Thickness | 1.4-2 millimeters |
| Leather Manufacturer | Horween Leather Co. |
| Leather Colour | Orange |
| Leather Texture | Pebbled |
| Leather Backside | Unfinished, smooth |
| Inner Bladder | Butyl rubber |
| Winding Layer | Nylon 6,6 |
| Rubber Carcass | Mix of butyl rubber and natural rubber |
| Leather Durability | Wear-resistant |
| Leather Feel | Soft and flexible |
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What You'll Learn
Leather basketballs start off orange and darken over time
Basketballs are made from leather, rubber, or synthetic composite materials. Leather basketballs are the traditional option, and nearly all basketballs feature an inflatable inner rubber bladder, wrapped in layers of fibre, and then covered with leather.
The Horween Leather Company of Chicago is the official manufacturer of NBA basketball leather. The company uses steer hides, which are initially chrome-tanned and then re-tanned with a blend of tree bark extracts and emulsified oils. The leather is then dried in a pasting unit, with starch paste sticking to glass frames that allow the leather to run through a hot-air dryer. The leather then goes through an embossing process to create the pebbled texture.
Leather basketballs are more expensive than rubber or composite balls, and they are more suitable for indoor use. The abrasiveness of asphalt and the dirt and moisture present in an outdoor setting will usually ruin an indoor ball within a short period.
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Leather basketballs need to be broken in before competition
Basketballs made from leather need to be broken in before they are used in competition. This is because, when new, the leather is stiff and rough, which makes the ball difficult to grip. However, as the leather softens, the grip and feel of the ball improve. This process of breaking in a basketball can take a few weeks, depending on how often the ball is used. The more the ball is dribbled and used, the faster the leather will break in.
Leather basketballs are special because they need to be broken in, which is not the case for most composite basketballs. This process of breaking in the leather is what gives the basketball its optimal performance. Over time, the leather becomes softer and develops a feel that players appreciate. Breaking in a leather basketball will give players better control and grip.
The colour of a leather basketball can also change as it is broken in. A new leather ball will start off a light brown colour, but as the leather softens, the ball will slowly turn a darker brown shade. This change in colour is a sign that the leather is starting to break in and is almost ready for competition.
The NBA uses leather basketballs that are manufactured by Horween in Chicago, Illinois. These leather basketballs are unique because they do not have any added chemicals or agents to increase grip. Instead, the sweatier the ball gets, the better the grip becomes. This is why leather basketballs are preferred by professionals over synthetic balls.
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Leather basketballs are made from steer hides
Basketballs have traditionally been made of leather, and while the NBA has largely migrated to synthetic materials, they still use genuine leather for the outer layer of the ball. The NBA is the only league that uses a genuine leather ball, and each team receives an allotment of new balls every year.
After drying, the leather is surface-dyed to meet Wilson's specifications for stain and pigment (with a focus on stain). The leather then undergoes an embossing process to create the pebbled texture characteristic of basketballs. This texture is created by a German-made plate, about the size of a small dinner table, that uses 1,000 pounds of pressure. The denser the hide, the better the pebble pattern holds.
The entire process of turning blue-tinted steer hide into a pebbled sheet of leather ready for shipment to the factory takes about 22 working days. The leather is then sent to a factory in China, where Wilson's basketballs are manufactured. The final product has a leather thickness of about 1.4 millimeters.
While leather basketballs remain popular, the rise in environmental awareness has led to the development of more sustainable alternatives. These include basketballs made from rubber, recycled rubber, or biodegradable materials.
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Leather basketballs are stitched with nylon 6,6
Basketballs are made of leather, rubber, or synthetic composite. Leather basketballs are stitched with nylon 6,6, which is a type of nylon made up of two monomers with six carbons each: adipic acid and hexamethylenediamine. This specific type of nylon is well-suited for basketball manufacturing due to its ability to form into a fibre and its high tensile strength, which prevents it from snapping under tension when wrapped around the ball. Nylon 6,6 also exhibits excellent stiffness and elasticity, allowing basketballs to hold their shape during bouncing and enhancing their durability.
The manufacturing process of leather basketballs involves several steps. Firstly, the leather is sourced from steer hides, which undergo a chrome-tanning process to preserve the hide. The hides are then retanned with a blend of tree bark extracts and emulsified oils, specifically formulated for basketballs. Following this, the leather is dried using a pasting unit, where starch paste adheres to glass frames, enabling the leather to pass through a hot-air dryer.
One of the critical steps in the leather basketball manufacturing process is embossing, which creates the distinctive pebbled texture on the leather's surface. This texture plays a crucial role in enhancing the friction between the ball and the player's hand, resulting in improved grip. The leather is also treated to achieve the desired surface texture and is typically dyed to meet specific standards or team preferences.
After the leather is prepared, it is cut into panels and glued or stitched onto the rubber panels that surround the bladder. The stitching process involves using nylon 6,6 thread, which provides exceptional strength and durability. This stitching ensures that the leather panels remain securely attached to the core of the ball, even during intense gameplay.
The choice of nylon 6,6 for stitching leather basketballs is strategic. Its high tensile strength and durability ensure that the stitches can withstand the stress of constant dribbling, passing, and shooting without easily snapping or tearing. Moreover, the elasticity of nylon 6,6 allows the basketball to retain its shape effectively, contributing to consistent performance during gameplay.
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Leather basketballs have a pebbled texture
Basketballs are made from a variety of materials, including leather, rubber, and synthetic composite. Leather basketballs are traditionally used for indoor play, while outdoor balls are usually made from rubber to withstand rougher conditions.
The pebbled texture also contributes to the ball's overall durability. The raised pebbles tend to flatten with use, and the leather itself becomes softer and more pliable over time. This transformation is part of the breaking-in process, during which the leather ball darkens in color and develops a feel that players appreciate.
The Horween Leather Company of Chicago, the official manufacturer of NBA basketball leather, uses a specific process to create the pebbled texture. After preparing the leather to the required size and thickness, it undergoes an embossing process with a specialized plate in an embossing press. This process imprints the distinctive pebbled pattern onto the leather, enhancing its performance characteristics.
The pebbled texture of leather basketballs is, therefore, a carefully designed feature that not only improves grip and durability but also contributes to the unique feel and tradition of the game.
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Frequently asked questions
The traditional color scheme of basketballs is an orange surface with black "ribs" and a possible logo. However, basketballs are sold in various colors.
Basketballs are made from leather (traditional), rubber, or a synthetic composite.
The NBA still uses leather basketballs, specifically, those made by Horween, the official manufacturer of the NBA basketball leather. However, the NBA has started to use synthetic materials for the basketball's inner layers.
