Did you face challenges when printing in polyester? Polyester has changed so much in its texture over time, which has led to constant changes in printing mechanisms. The stretch ability of the polyester fabric comes in a wide range, needing a change in the printing mechanism.
A high temperature of the heating iron melts the polyester fabric, leaving shiny iron stains on the fabric. The gorgeous print you have worked for leaves you in despair in a moment. It is important to adjust the temperature of the heat press to the polyester fabrics as they vary in heat tolerance. With a basic knowledge of some techniques, you can avoid heat press marks on polyester fabrics.
The Reasons For Heat Mark On Polyester Fabric
The temperature of the iron press is the major reason for the heat mark on fabrics. It is difficult to adjust the press to a single temperature, as the resistance of different polyester fabrics varies. Usually, you can select a safe range of temperature to heat the iron. For polyester, the safe range is to stay at 300-degree as a higher temperature will scorch the fabric. You may begin adjustment with a lower range, and increase until you get to the best temperature for the polyester fabric you have.
How To Avoid Heat Pressmarks?
To avoid heat marks on fabrics, you need to follow some basic techniques. These include:
- Thread ability of the Fabric
- The right size of heat press platen
- Use of pillows for heat printing
1. Threading Apparel on the Platen of a Heat Press
Thread ability means threading or placing the apparel you want to print on the platen of the heat-pressing machine. Perfect threading will allow heat to fabric in the area where the design will print. Let the garment with the transfer face the top of the platen. The side of the garment without the pattern should be underneath the platen.
For perfect threading, avoid placing the buttons, seams, and pockets directly under the heating press. Let the heat press have a distinct area to allow a flat surface of heat.
2. The Right Size of Heat Press Platen
The platen of the printing press comes in different sizes. Small platens will cover small designs. Some pressing machines carry various sizes of platens. While preparing your heat press machine, determine the type of platen that will allow perfect heat spread on the design you want to transfer.
3. Use of Pillows for Heat Printing
Using about ¾ inch foam pillows with a non-stick backing makes an excellent finish of the garments. Because of the sinking of the seams and buttons, the heat marks do not appear. It is a simple way of printing without creating a heat pressmark.
How To Get Rid Of Heat Press Marks From Polyester
Although it is difficult to remove press marks from fabric made of polyester, the method below is applicable for good result. The steps are as follows.
- First, wet a pressing fabric and wring out the water.
- Lay it on top of the scorched part of the fabric.
- Set iron on the steam and hold it on top of the pressing cloth. Let the steam come in touch with the pressing cloth and the garment underneath. Let it stay for one minute.
- Put off the iron, you will find loose residues in the garment. Rub it with a cloth brush.
- Use steel wool to rub off the burnt marks.
- You may wash the fabric and dry it in the air.
How To Remove Shiny Heat Marks From Fabric?
- Soak the pressmark fabric in cold water for about 24 hours.
- Add one of cup vinegar to a bucket and use this water to wash the fabric with detergent.
- Use steam as described to remove the light marks that remain.
Use Of Hydrogen Peroxide For Scorch Marks
- If you have a very light pressmark, wet or dampen the mark with a solution of 3% hydrogen peroxide. Or, you may also soak the fabric in bleaching powder. Do not mix the two. If you using these agents, make sure to wear gloves to protect your hands from burning.
- Wash it off with laundry detergent.
- You may also sprinkle salt and wash with cold water.
How To Avoid Burn Marks When Ironing
Ironing a fabric can leave scorch marks if the iron is too hot. It is better to prevent burning than fixing. To avoid such burns here are some tips.
- Before ironing, check if the soleplate of the iron is clean. If there are any residues, clean well by applying a hard brush and wiping with a duster.
- Heat the iron to the correct temperature that the fabric can take. The temperature for polyester fabric will be much lower than cotton.
- Place the pressing cloth on top of the fabric you want to iron if the fabric is sensitive to high heat.
- If it is hard to get the wrinkles out, sprinkle water on the pressing cloth and then iron.
- Synthetic fabric will not take starch and create burns, so avoid starching.
- You may also use a steamer to avoid iron burns.
- It is also good to iron on the wrong side of the fabric.
The article will show how to avoid heat pressmarks on polyester fabric. As prevention is better than cure, we have given you tips on the prevention of heat pressmarks, while printing from machine presses and hot iron.
Polyester is a tough fabric to handle while printing by the press as well as removing accidental heat marks. No matter how much you know of the fabric you are using, it is always good to read the label of instruction that comes with the fabric. I hope with intent reading, you will have no more heat pressmarks!