Fusible interlining may experience delamination, blisters, shrinkage, and hand feel changes if production conditions are not met. Therefore, it is important to establish testing standards before production.

Basic test items

bonding temperature
press pressure
bonding time
Bonding stability after cooling
Changes after washing or dry cleaning

Types of defects to check

Representative examples include bonding peeling, surface blisters, fabric shrinkage, discoloration, and hard hand feel. Even with the same interlining, results may vary depending on the fabric post-processing status.

Information to Prepare for Consultation

Product selection will be more accurate if you inform us of the shell fabric type, application area, target hand feel, washing conditions, and press equipment conditions.

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Why you need to record test conditions

Testing fusible interlining is not something you just put together and be done with. Temperature, pressure, time and cooling conditions must be recorded so that the same results can be reproduced in production. Without condition records, differences in quality can occur when operators or equipment change.

Press test sequence

Prepare shell fabric and interlining samples.
First bonding is performed based on the recommended temperature and time.
After cooling, check whether there is peeling and the surface condition.
Check for hand feel, wrinkles, air bubbles, shrinkage.
If necessary, recheck after washing or dry cleaning.

Example of defect cause

When bonding is weak due to low temperature
If the temperature is high and the fabric discolors or changes in hand feel occur.
When only some bonding occurs due to uneven pressure
When bonding stability is low due to fabric post-processing

Frequently Asked Questions

Are the bonding conditions the same for each interlining?

no. Since it may vary depending on the interlining resin, fabric, and equipment, testing for each specification is required.

How do you perform a peel test?

After bonding, it is recommended to cool sufficiently and then check with your hand whether there is peeling, and see if the bonding condition is maintained even after washing.

How to Judge Fusible Interlining Tests in Practice

Fusible interlining tests should be reviewed together with garment purpose, target quality and production schedule rather than judged by a single criterion. If material issues are found after bulk production begins, cutting and sewing schedules can be delayed, so standards should be clarified during the sample stage.

Quality Check Checklist

Check temperature, pressure, dwell time, peeling, shrinkage and stability after washing first.
Compare thickness and hand feel with the outer fabric and subsidiary material together.
Check that there are no appearance changes after sewing or fusing.
For repeat production items, check whether the same specification can be supplied again.

Information to Prepare Before Inquiry

If you prepare the outer fabric sample, press conditions, washing standard and target hand feel in advance, consultation and sample proposals can be much faster. If you have a material currently in use, sharing the product name, photos, sample and any issues is also helpful.

Final Decision Criteria

Even when subsidiary materials are not highly visible in the finished garment, they affect comfort, durability and production stability. Therefore, it is safest to compare price, delivery and quality standards together and, when necessary, test with the actual fabric before finalizing specifications.

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Fusible Interlining Test Checklist: Temperature, Pressure, Time and Washing