Why Batch Coding Matters More Than Ever

Walk into any supermarket, pharmacy, warehouse, or manufacturing facility and you'll find one thing nearly every product has in common:

It carries a date.

Sometimes it is a manufacturing date.

Sometimes it is an expiry date.

Sometimes it includes a lot number, production shift, or traceability code.

These markings may appear simple, but they play a critical role in modern supply chains.

Without accurate coding, manufacturers may face:

Product recalls

1. Compliance violations

2. Customer complaints

3. Inventory confusion

4. Traceability failures

As regulatory requirements continue to increase across industries, reliable date and batch coding has become a core operational process rather than a secondary packaging task.

For businesses seeking flexible coding solutions, handheld inkjet printers have become one of the most practical tools available.

If you're comparing different coding technologies or evaluating equipment for long-term production use, our complete guide to handheld inkjet printer applications and selection provides a broader overview of printer types, industrial use cases, buying considerations, and implementation strategies.

The challenge, however, is not simply printing information.

The challenge is printing the correct information consistently, accurately, and efficiently.

This guide explains how manufacturers can implement batch coding and expiry date printing using handheld inkjet technology.

What Information Is Typically Printed?

Before configuring a printer, it is important to identify exactly what information must appear on the product.

The requirements vary by industry.

Food Manufacturing

Typical information:

Pharmaceutical Production

Typical information:

Cosmetics Industry

Typical information:

Industrial Manufacturing

Typical information:

Understanding these requirements before setup helps prevent coding errors later in the process.

Step 1: Determine Where the Code Will Be Printed

One of the most common mistakes is choosing the wrong print location.

The code must remain:

1. Visible

2. Legible

3. Durable

throughout the product lifecycle.

Common Print Locations

Factors to Consider

Surface Quality

Uneven surfaces can reduce print clarity.

Available Space

The code must fit comfortably without affecting branding.

Scanner Accessibility

QR codes and barcodes should remain easy to scan.

Step 2: Select the Correct Ink

The printer itself is only part of the solution.

Ink selection often determines whether the project succeeds.

Porous Materials

Suitable examples:

1. Cartons

2. Paper

3. Corrugated boxes

Generally easier to print.

Non-Porous Materials

Examples:

1. Plastic

2. Glass

3. Metal

Require specialized inks.

Manufacturers working across different materials often evaluate printing on plastic, metal, and glass surfaces before selecting a coding solution.

Step 3: Create the Print Template

Modern handheld printers allow operators to create reusable templates.

Typical template elements include:

Static Information

Variable Information

Example Layout

Templates improve consistency and reduce operator mistakes.

Not sure which printer fits your application?

Consulting experts' advice

Step 4: Configure Automatic Date Functions

Many printers support automatic date generation.

This feature significantly reduces human error.

Instead of manually entering:

each day,

the system automatically updates:

based on predefined rules.

Example

Manufacturing Date:

Shelf Life:

Automatically Generated:

This is particularly useful for food and pharmaceutical applications.

Step 5: Verify Print Quality Before Production

Never begin production without verification.

Perform test prints on actual products.

Check:

√ Character clarity

√ Alignment

√ Ink adhesion

√ Drying time

√ Scanner readability

Industrial Case Study: Food Packaging Facility

A food manufacturer producing sauces experienced recurring coding errors.

Root causes included:

1. Manual date entry

2. Multiple operators

3. Frequent product changes

After implementing template-based coding with automatic date generation:

1. Coding errors fell by 87%

2. Product recalls were avoided

3. Operator training time decreased

The company also improved traceability compliance.

Common Batch Coding Mistakes

Mistake #1: Manual Date Entry

Human error remains one of the leading causes of coding failures.

Automation should be used whenever possible.

Mistake #2: Wrong Ink Selection

Poor adhesion can result in:

1. Smudging

2. Fading

3. Customer complaints

Mistake #3: Skipping Verification

Even a perfectly configured system requires routine quality checks.

Mistake #4: Poor Operator Training

Simple mistakes can affect thousands of products.

Compliance Considerations

Different markets have different requirements.

Manufacturers should verify:

1. Date format

2. Language requirements

3. Product-specific regulations

4. Industry standards

before deployment.

Batch Coding vs Traceability Coding

Many companies mistakenly treat them as identical.

In reality:

Batch Coding

Tracks production groups.

Traceability Coding

Tracks individual products.

Traceability systems often include:

1. QR codes

2. Serial numbers

3. Database integration

Businesses implementing advanced traceability frequently begin with industrial applications of handheld marking equipment before expanding into more comprehensive coding programs.

ROI of Automated Date Coding

Example:

This demonstrates why coding systems often pay for themselves relatively quickly.

When Should You Upgrade Your Coding Process?

Signs include:

√ Frequent coding errors

√ Product recalls

√ Manual data entry

√ Growing traceability requirements

√ Increased SKU count

FAQ

Can handheld printers automatically print expiry dates?

Yes. Most industrial models support automatic date calculations.

Can batch numbers be generated automatically?

Yes. Dynamic fields can generate sequential or rule-based batch codes.

Can handheld printers print QR codes alongside dates?

Absolutely.

What industries require batch coding?

Food, beverage, pharmaceutical, cosmetics, electronics, and many industrial sectors.

How often should coding accuracy be checked?

Typically at the start of each production run and during periodic inspections.

Batch coding and expiry date printing are no longer simple packaging tasks.

They are essential components of modern traceability systems.

When implemented correctly, handheld inkjet printers provide a flexible and cost-effective solution for printing accurate production information across a wide range of products and materials.

By combining proper template design, automatic date functions, suitable ink selection, and routine verification procedures, manufacturers can improve compliance, reduce errors, and increase operational efficiency.

Need help selecting the right handheld coding solution for your products?

Our technical team can evaluate:

1. Your packaging materials

2. Required date formats

3. Traceability requirements

4. Ink compatibility

and recommend the most effective coding setup for your production environment.