Texitles & Fabrics inspection are an essential process in the texitles industry to ensure that the fabrics meet the required quality standards. The procedure involves a series of activities that are required for identifying defects, assessing the physical properties, and analyzing the fiber content of the fabric. The importance of fabric inspection cannot be overemphasized, as it is critical to achieving consistency and quality in textile products. In this article, we will discuss the fabric inspection procedure in detail, including the various steps involved, a 4-point system of fabric inspection, and the importance of each step.

SIT Inspection is a trusted leader in fabric inspection services. Our textiles & fabrics inspection experts are well-versed in fabric quality control standards and can assist you in ensuring that your textile products meet the highest standards of quality, safety, and performance. Our inspection process goes beyond surface-level checks and employs advanced techniques and equipment to measure critical parameters.

Key Aspect of Texitles & Fabrics Inspection

At SIT ,Our quality-assurance experts usually follow ASTM D5430-13(2017) (“American 4 point system”)*. This is a points-based inspection where points are deducted for defects as penalties, with the most serious defects being up to 4 points.

Fabric quality assurance can be inspected by eye or by machine (more common), where the roll of fabric that has been sampled is passed over the glass inspection table and the light emitted below shows up defects that are marked by the inspector.

1. Visual Fabric Inspection

Experience has shown that visual inspection is one of the most common methods of fabric inspection in apparel production, where the inspectors examine the fabric themselves for any forms of defects. This process aims to identify defects such as stains, discolouration, holes, and other defects that may affect the final product and/or its quality. A pre-production quality control check on fabrics involves laying the fabric flat or rolling it on an inspection table so as to prevent overlooking of defects. The inspectors lay the fabric flat and systematically examine the material under adequate light.

Material Inspection Tips:

These potential flaws can be unveiled through natural or bright white lighting.
Make trainers familiar with regular imperfections and distinctive non-conformities that are frequent in each sort of fabric material.
Record the defects encountered and their respective positions so that the findings can be reported effectively to the suppliers.
Visual inspection can appear to be benign yet is critical in ensuring that proper fabric quality is achieved prior to the start of a production line.

2. The 4-Point System

The 4-point system is one of the leading methods used in fabric inspection in apparel production all over the world. This means that the time taken by the fabric inspector can be quantified, and each defect is given a point value on the fabric in question. For example, defects up to 3 inches are awarded one point; defects measuring 3 to 6 inches are awarded two points; 6 to 9 inches are awarded 3 points; and any defect sized 9 inches or more is awarded 4 points. The obtained points are then summed, and if the points are greater than a certain limit, the fabric cannot be used for manufacturing.

Products have a number of possible defects, such as broken yarns, holes, and misprints, and this system of pre-production quality control makes it possible to detect all these. It is very effective when it comes to offering an impartial figure of fabric quality, especially when in the process of deciding whether to go ahead with the production or not of a particular fabric batch.

Material Inspection Tips:

Define the acceptable point threshold based on the usage of fabric.
Make sure all inspectors are familiar with the point system to warrant standardisation.
Daily, weekly, or monthly review and adjust the point system standard with suppliers to prevent misunderstandings.
The use of a 4-point system is also effective in ensuring that quality is standard and/or consistent and that the quality expectation is clearly communicated with the fabric suppliers.

3. Shading or Color Matching Inspection

Another common type of fabric inspection in apparel production is known as shading inspection, also known as color inspection. This inspection process ensures that the fabric rolls are of the right color or shade so that seemingly different colors are picked out and not used. Two similar fabric rolls are exposed to standard lighting, and the inspectors visually match the color of the batch. Small variations in shade can create garments that do not blend, and this would mean that clients or customers find them off-putting.

Material Inspection Tips:

It is advisable to perform shading inspections always under standardised lighting conditions to avoid preventing variance.
You should maintain an approved colour swatch or even a control sample from which you can compare when inspecting.
It is advisable to have colour inspections periodically throughout the production process since some fabrics may alter in colour according to the particular environment they are in.
This pre-production quality control step is vital as it gives special emphasis to shade consistency; this is made exceedingly important by the fact that for large orders, variation in shade can end up affecting and ruining the appearance of the apparel.

4. Fabric Weight and Density Check

Fabric weight and fabric density are important preproduction quality control parameters to assess the fabric quality as they affect the wearing performance of the fabric. This inspection in fabric apparel production entails looking into sample weights to ensure they are of the right standard; also check on density and ensure you have the right standardised density. Fabric properties are critical when it comes to performance and functional wear. Worst of all, fluctuation of any measurements such as weight and density can alert the organisation of potential quality problems or even suggest that the production processes are not standard.

Material Inspection Tips:

For regular and correct determination of fabric weight, use calibrated calves.
When measuring density, use a ruler or any device that ensures uniformity.
It is essential to identify what level of tolerance is acceptable regarding each type of fabric in order to make the best call swiftly.
Thus, through confirmation of weight and density, manufacturers proceed with production, assuring that the fabric meets their expectations in regards to quality, thus eliminating expensive problems that could result from low-quality fabric.

5. Fabric Width and Shrinkage Test

One process during fabric inspection in apparel production that should be kept in mind is fabric width and shrinkage. Since garment manufacturing involves cutting and utilising fabrics, there is always a need to understand fabric width. Shrinkage testing enables the makers of a cloth to understand how the material of the product will look after it has been worn. The sample should be measured and then washed, and then the washed sample should again be measured to figure out how much the shrinkage is. It also allows the makers to figure out what needs to change in the production process to avoid cases of variation.

Material Inspection Tips:

For fabric width accuracy, check the width of the fabric across various areas of the roll.
Implement predetermined parameters for shrinkage allowances so that adjustments can be made for production.
If fabric rolls are from different suppliers or dye lots, then conduct more than one shrinkage test.
Maintaining fabric width and shrinkage tests are key pre-production quality controls to verify the finished garment size to the intended size.

Common Quality Defects Identified in Texitles & Fabric Inspection

Textile manufacturing is a sophisticated process that blends art and science. Despite technological advancements, the occurrence of defects remains an inherent challenge. Identifying and understanding these defects is crucial in implementing effective quality control measures. Here, we outline the most commonly encountered defects in textile inspection:

1. Appearance Defects
These include any visual imperfections that affect the aesthetic appeal of the textile. Common examples are:

> Surface Marks: Stains, dirt marks, oil spots, or any unwanted prints.
> Fraying Fabric: Unraveled or worn-out edges indicating poor finishing.
> Unfinished Edges: Raw, unhemmed, or improperly finished edges that compromise the garment’s integrity.

2. Seams and Stitching Irregularities
Key aspects to inspect here are:

> Open Seams: Portions where the seam is not properly closed or joined.
> Incorrect Thread Selection: Using threads that are incompatible in terms of color, thickness, or material with the fabric.
> Skipped Stitches: Missing stitches which can lead to seam failure or holes.
> Uneven Stitching: Irregular stitch lines that can affect both appearance and durability.

3. Color and Dye Issues
Critical for maintaining aesthetic consistency:

> Dye Spots: Unintended spots or splashes of color.
> Color Fastness: The ability of the fabric to retain its color during washing and use.

4. Fabric Quality Concerns
Directly related to the material’s quality and durability:

> Material Flaws: Using lower-grade materials than specified.
> Fabric Weight Discrepancies: Deviation from the specified weight, affecting the fabric’s feel and draping quality.
> Cuts/Tears: Accidental damage to the fabric.
> Slubs or Misweaves: Thicker or irregular threads in woven fabrics.
> Texture & hand feel: Rough, scratchy, stiffness, or uncomfortable fabrics

5. Sizing, Labeling, and Packaging Errors
Ensuring accurate information and compliance:

> Misaligned Sizes: Discrepancy between labeled and actual sizes.
> Missing Labels: Absence of required labels including size, care instructions, and material composition.
> Packaging Non-compliance: Polybags larger than 5″x7″ lacking child suffocation warnings.

6. Logo Print/Screen Printing Errors
Ensuring the correct logo and correct placement:

> Incorrect logo: Discrepancy in the actual printed logo content, size
Defective printing: Misprint,
Incorrect placement: Inaccurate printing placement

7. Label Information Accuracy
Crucial for consumer information and legal compliance:

> Care Label Discrepancies: Incorrect washing or care instructions.
> Content Label Errors: Inaccurate material composition details.
> Hang Tag Inconsistencies: Misleading or incorrect product descriptions.

8. Component and Trim Quality
Ensuring all parts of the textile product meet standards:

> Zip Teeth Smoothness: Zippers should operate smoothly without snagging.
> Component Quality: Ensuring buttons, snaps, and other components are of good quality and securely attached.

9. Measurement and Fit
Ensuring the textile product fits as intended:

> Size Deviations: Products not meeting the specified dimensions.
> Poor Fit: Garments that do not conform to the intended fit standards.

10. Safety Concerns
Eliminating any potential hazards:

> Loose Snaps: Snaps that can detach and pose a choking hazard.
Foul Odors: Indicating the use of harmful chemicals or dyes.
Removal of Sharp Objects: Ensuring no pins, needles, or staples are left in the product.

11. Overall Workmanship
The general craftsmanship of the textile product:

Uniformity in Construction: Consistency in design and construction across all products.
Attention to Detail: Ensuring all aspects of the product are finished to a high standard.
During a textile inspection, these aspects are scrutinized against the specified quality criteria. The inspection process involves a systematic examination of the textiles, using both visual inspection and physical testing where necessary. The aim is to identify any deviations from the agreed-upon standards and specifications, ensuring that the final product delivered to the customer meets their expectations in terms of quality, safety, and functionality.

Standards Used in Texitles & Fabric Inspection

1. Fabric Inspection
For fabric inspection, ASTM D5430 – Standard Test Methods for Visually Inspecting and Grading Fabrics is commonly used and is often associated with the “4-Point System” for fabric inspection. It outlines methods for assessing fabric quality and identifying any imperfections or irregularities that may affect the fabric’s performance or suitability for its intended application.

2. Dimensional Stability Testing
Dimensional stability refers to a fabric’s ability to maintain its original dimensions after washing and drying. Textile inspectors use standards like ISO 5077 and ASTM D4970 to assess shrinkage or elongation of the fabric after laundering.

3. Colorfastness Testing
Colorfastness is a crucial quality aspect, determining whether a fabric’s color will bleed or fade under various conditions. Tests are conducted for colorfastness to washing (ISO 105-C06), rubbing (ISO 105-X12), and light exposure (ISO 105-B02).

4. Strength Testing
The strength of the textile is evaluated to ensure durability. Tensile strength tests (ISO 13934-1) measure the force required to break the fabric, while tear strength tests (ISO 13937-2) assess the force needed to propagate an existing tear.

5. Flammability Testing
For certain textiles, especially those used in home furnishings and children’s wear, flammability tests are crucial. Standards like the U.S. Flammable Fabrics Act (FFA) set requirements for fabric flammability.

6. Chemical Testing
Textiles are tested for harmful substances to ensure they meet health and safety standards. Tests include checking for pH value (ISO 3071), presence of azo dyes (EN 14362-1), and formaldehyde content (ISO 14184-1).

7. Fiber Composition Analysis
Fiber composition is verified using methods like the burn test or chemical analysis to ensure the product matches its label. This is important for consumer trust and regulatory compliance.

8. Pilling Resistance Testing
Pilling is the formation of small, fuzzy balls on the surface of the fabric. Resistance to pilling is assessed using tests like the Martindale method (ISO 12945-2).

9. Seam Strength and Slippage
Seam strength is vital for garment durability. Tests like ASTM D1683 measure the strength of sewn seams, while seam slippage tests (ASTM D4034) assess the integrity of the fabric at the seam.

10. Water Resistance Testing
For fabrics that are meant to be water-resistant, tests like the Spray Test (AATCC 22) or Hydrostatic Pressure Test (AATCC 127) are conducted.

11. Compliance with International and Regional Standards
Finally, textile inspections ensure compliance with international standards such as ISO, ASTM, and AATCC, as well as regional regulations like REACH in Europe and CPSIA in the USA.

Conclusion: The Ultimate Guide toTextiles Inspection and Quality Control

Fabric quality-assurance inspection is vital to ensure fabric quality in terms of colour, density, weight, printing, measurement and defects. Fabric inspection can help prevent production challenges, reduce wastage, and improve customer satisfaction.

If you are looking for a quality-assurance company to help you conduct fabric inspection professionally, contact SIT. As a leading provider of quality control services in Asia, with a team of experienced and qualified inspectors who can perform fabric inspection according to your requirements and standards, help you ensure the quality of your fabric and achieve your business goals.