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Introduction: What is Iron on  . . . ?

Iron-on is a widely used technique of transferring designs or pictures or patches onto cloth with the help of heat and pressure. 

Wikipedia says that iron-on transfers are done by putting a design face-down on the cloth and putting heat on the cloth that melts a glue backing or heat reactive adhesive, then the design is permanently stuck to the material.  

It has been a common way of personalizing clothes, T-shirts, uniforms, bags and other textile products due to its fastness, flexibility and it does not entail sewing. Printed transfers, embroidered patches, appliques, and labels may also be used as iron-on products using a variety of materials; plastisol inks and sublimation papers may all be used to achieve durable, vibrant and professional-appearing results. 

The technique is popular not only among amateur users in their homes but also with commercial producers of large or small scale.

1. Wholesale bulk patches and their details

a) What does it mean by iron on?

Iron-on is a technique of decorating cloth with heat and pressure to fix designs, images or patches. The support of an Iron-on product is a heat activated adhesive which becomes melted when applied with an iron or heat press and the design permanently sticks to the material. It is easy to use without sewing.

b) What is the use of iron on?

The application of Iron-on is to print the fabric by applying heat and pressure by designs and patches, labels, and graphics rather than using sewing. Iron-on products contain a heat-activated adhesive layer which melts under pressure of an iron or heat press and adheres the design to clothing or other textile surfaces.

Customization of T-shirts, uniforms, hats, bags and promotional products using iron-on is popular since it gives a fast, convenient and professional appearance. Among hobbyists, small enterprises, schools, and manufacturers, it is favored to add logos, names, numbers or decorations without the use of complicated equipment or needling.

History of iron on transfers

a) How did iron on transfers come to exist

Iron-on transfers were developed in the 20th century due to the improvements in textile printing and heat-reactive adhesives. With the evolution of screen printing and plastisol ink technology, manufacturers found that one could print the design on a special transfer paper and apply the print to fabric with the use of heat and pressure. 

This invention enabled mass production of pictures independently and then transferred on clothes with ease without necessarily printing on the cloth.

The technique was particularly widespread in the 1960s and 1970s with the emergence of custom T-shirts, advertising merchandise and home crafted clothes. Both commercial printers and home users could now have the ability to create customized clothing easily and cheaply with the aid of heat transfer paper and enhanced adhesive coatings, and iron on transfers became common in the customization of apparel.

b) Growth of iron on transfers

Expansion of the custom apparel business and advancement of printing technology enhanced the rate of growth of Iron-on transfers. Since heat transfer paper, plastisol inks, and sublimation techniques were also being improved, iron-on applications provided more durability, brighter color and longer lasting effects. This made them more popular custom T-shirts, uniforms, sportswear and promotional products.

As the small business, virtual markets, and DIY crafting subcultures rose to prominence, the emergence of iron-on products gave the hobbyists and businessmen easy access to Iron-on products. Their introduction of home heat presses and printable transfer papers added more fuel into the demand as now people could make professional quality designs at the comfort of their homes which led to the gradual development of the iron on market across the globe.

2. How are iron on transfers made

a) The ultimate process

• A combination of design printing and heat-activated adhesive bonding is used to make iron-on transfers.
• To begin with, a computerized design or artwork is done through the graphics software.
• Depending on the method, the design is printed onto special heat transfer paper, or transfer film, with ink, e.g. plastisol or sublimation ink.
• The first sheet is processed in such a way that when heat and pressure are applied on it, the printed image would bond to the fabric.
• During the last application phase the printed transfer is lined either face-down or face-up to the fabric, depending on the paper used.
• An iron or heat pressing platform is used to subject strong pressure and temperature onto the printing surface in a given duration enabling the adhesive layer to react and bond the design permanently to the textile surface.
• The image is permanently fixed after cooling or peeling the backing sheet leaving a professional and durable finish.

b) What kind of fabric should and should not be used

Iron-on transfers can be applied to cotton fabrics, polyester fabrics or blends of cotton and polyester due to their ability to withstand heat necessary to activate the adhesive. Cotton is particularly perfect in terms of its longevity and the capacity to deal with high temperatures without being destroyed.

Polyester is also suitable especially with transfers using sublimation because it can be bonded with bold colors when heat is used. 
The cleaner finish and better adhesion on smooth and tightly woven fabrics usually give a better finish.

Examples of such fabrics that should not be worn are delicate fabrics such as silk, nylon, rayon or spandex blends, which are very heat-sensitive. 
Such materials are scalding, melting, and deforming at a high temperature. Fabrics with waterproofing, heavy textures or coating might also not adhes to properly and could therefore split or drop off time. To be sure that ironing transfers safely and effectively, always read the labels of clothes before using transfers.

c) How to apply an iron on transfer correctly

In order to transfer an Iron-on, you first must preheat your iron/heat press to whatever the paper and fabric type suggested heat. Lay the garment on a flat surface with no heat and iron the wrinkles. Place the transfer where desired keeping the printed side down against the fabric as advised and place a thin protective cloth over the transfer in case necessary.

Continuously press the iron on the design with firm pressure within the suggested time, slowly moving at the whole design without relocating it. Heat then and then cool the transfer, should it be a cold peel type, or peel off-the-bat, should it be a hot-peel transfer, again as per the product instructions. Lastly, allow the garment to rest some hours prior to washing so that there are high adhesion and lasting effects.

d) How much does it cost to apply and make iron on transfers

Iron-on transfers cost is determined by a number of factors such as material and equipment cost, as well as the scale of production. In the case of one home project that is done with printable transfer paper, the primary costs are transfer sheets (prices are between 0.50-3.00 per sheet), cost of ink or printer and time taken in applying the transfer paper. 

When you have a heat press, the device will be between 100 and 400 dollars or more, but irons have the capability to be used with sporadic use.
The expenses involved in commercial production are bulk transfer paper, professional inks, labor and use of a heat press which reduces the per-piece price when it is done in large quantities. When ordered in large quantities, the average cost per piece to create and implement each iron-on transfer can be between $1-$5 per transfer based on the level of design intricacy, the mediums employed and the amount ordered. 

An increase in the size of production runs tends to lower the price per transfer to a considerable extent. Such estimates may be different depending on the pricing of suppliers, the number of orders, and the region.

Conclusion

Summing up, Iron-on is an easy-to-use, multifunctional, and efficient method of adopting patterns, patches, or labels on a piece of cloth. It can be used to customize and produce high quality and lasting effects on clothes, handbags and other fabrics using pressure combined with heat to activate adhesives making it an option of choice in individual customization and commercial manufacturing.

FAQ’s

Q1: What does iron-on mean?

Answer: Iron-on patches are heat activated and bind to a piece of clothing when an iron is applied.

Q2: how do iron-on patches work?

Answer: The adhesive is melted by heat and bonded the patch to the cloth.

Q3: Where are they used?

Answer: On T-shirts, jackets, bags and caps to be decorated, branded or uniforms.

Q4: Can they be washed?

Answer: Yes, but soft rolling and swapping the clothes inside out is employed to maintain adhesion.

Q5: Do they stay on permanently?

Answer: Sewing edges is mostly done to make the garment more durable, alongside ironing it on

Q6: Best fabrics?

Answer: Polyester blends with cotton and denim; delicate materials might not show good results.

Q7: Heat press vs home iron?

Answer: The heat press provides a higher level of evenness of heat and pressure thus making patches more resistant.