Yoonimex Inc. dba U.S. Embroidery Co. : all the embroidery you need

1. HEAT SEAL EMBROIDERED TRIM items are bonded to a wide variety of fabrics. Because of the many variables in fabrics and equipment. Several factors should be considered in the selection of the adhesive, and in how to attain the optimum performance from that adhesive.
ADHESIVE SELECTION-(Made in U.S.A.) Bond a polyamide based adhesive, and a polyester based adhesive, work well on most fabrics. These adhesives produce very strong and bonds, which demonstrate excellent resistance to commercial washing. The bonds well to plasticized vinyl coatings and polyester fabric. The bond's show superior resistance to any deterioration of the bond's strength from dry cleaning and boiling. Lot more reliable than any heatseal bond from outside U.S.A.

2. GENERAL HEAT SEALING CONDITION RECOMMENDATIONS-The Maximum bond strength is produced at glue line temperatures between 270°F (132°C) and 310°F(155°C). maximum bond strength occurs at glue line temperatures between 280°F (137°C) and 320°F(160°C).

3. For a typical emblem (50-100%) embroidery, machine settings of 270°-310°F (132°-155°C) platen temperature (top heat only), 60-80 psi gauge pressure, and 10-15 seconds dwell time.
DWELL TIME-Most end users prefer to use the shortest dwell time possible, so as to achieve the highest production rates. When sealing to many fabrics, the dwell time can be shortened by simply increasing the temperature setting. However, the fabric should always be tested at this new setting prior to sealing the trim. Some heat sensitive fabrics, at the higher setting may show color changes, glazing, scorching, shrinkage or distortion. Very thick materials will usually require a longer dwell time. To allow the greater mass to be heated, and to conduct the heat to the glue line.

4. BONDING CONDITIONS- Temperature, pressure and dwell time are the three basic heat seal conditions which must be controlled in order to insure proper and repeatable bonds. Since each type of machine, and each fabric, is different; these three parameters should be established for each specific garment and embroidery combination
Equipment needed: A hot platen heat seal press designed specifically for bonding embroidered emblems to garments.

5. TEMPERATURE SETTING-Temperature is the major factor needed to activate the adhesive. Adhesives used in the emblem application must be melted by the heat transmitted through the fabrics on each side of the adhesive layer. As the temperature increases. Beyond the softening range, the melt viscosity of the adhesive continues to decrease. Therefore, the higher its temperature becomes. The more the adhesive will tend to flow into the substrates. Almost all hot platen presses have one hard platen (usually the top) and a sponge pad coated bottom platen. For the best heat sealing results, it is recommended that both the top and bottom platen be heated. If the press being used is not capable of applying top and bottom heat, the heat should be applied through the hard platen through the back of the garment fabric.