Envelope Manufacturing

Tuesday, April 30, 2019

Reducing Scrap and Ensuring Quality with Luminescence Detectors

Envelope manufacturing

The Challenge

A major envelope manufacturer needs to verify the presence of seam gum on bright white envelope wings to assure product quality, reduce scrap and associated costs.

Recent trends in the paper industry have resulted in increased brightness of commercial white paper to 92 bright. Optical brighteners added to white paper causes the paper to fluoresce. Traditional gum verification systems that rely on UV additives in the gum to detect its presence cannot reliably differentiate between the background (92 bright paper) and the gum due to the strong emission of the paper.

Transparent Bottle Detection

Detecting Clear Bottles for Label Placement, Position, and More

Detecting the presence of transparent containers

The Challenge

A leading manufacturer of containers for the consumer goods industry needed to detect the presence of transparent containers for labeling, position detection and production counting purposes. It was imperative that the object detection be precise, repeatable and able to detect transparent, frosted and opaque objects.

High-cost, specialty sensors are often used to detect transparent objects.

Color Panel Matching

Thursday, April 4, 2019

Detecting Color Panel Accuracy with the ColorMax Sensor


Automated color matching process for hard woods

The Challenge

An innovative equipment manufacturer wanted to develop a machine to automate the color matching process for high quality solid wood panels. This machine would streamline the operation by eliminating the subjective nature of visual inspection while improving consistency and driving down operational costs.

Current processes generally involve inefficient, labor intensive and subjective manual inspection and sorting.

Tamper-Evident Seal

Ensuring the Proper Placement of Seals in Production Lines


Verification of tamper evident seal

The Challenge

A major manufacturer of shrink sleeve labeling and tamper-evident shrink banding systems needed to verify the presence of tamper-evident seal placement. Verification needed to be performed on every container during the high-speed process. Tamper-evident seals are mandatory for pharmaceutical products making it vital to verify the presence of the seal in the packaging process.

Use of shrink band films with optical brighteners to provide a tamper-evident seal has become a cost effective solution to improving the level of security provided by manufacturers in their products.

HDPE Blow Molding

Achieving the Right Level of Opacity and Light Protection

In-line blow molding opacity verification

The Challenge

One of the important factors in bottle use is the light barrier that the bottle provides to its contents. Since HDPE is a naturally translucent material, pigments are added to create the necessary opacity for the container. The most popular pigment is titanium dioxide, which provides excellent opacity and white coloring. During the manufacturing process it is important to maintain the required quantity of the pigments to achieve the proper opacity acceptable to the customer while protecting the contents from the damaging affects of light.

Glue Dispensing

Detecting the Presence and Placement of Glue Dispensing


Verification of glue placement for folder/gluer

The Challenge

A leading supplier of glue application and glue detection systems needed to verify the placement of glue on various packaging materials in a high-speed process to improve quality, throughput and to reduce operating cost by minimizing down-time. Proper glue placement on seams is necessary for packaging integrity.

The Solution

EMX Industries, Inc. has developed the UVX-300G-C Luminescence sensor designed to detect the presence of a wide variety of adhesives with luminescent tracers.

Discrete Output Configurations

Preventing Multiple Sensor Outputs from Becoming Connected


Forcing NPN or PNP operation

The Challenge

Many of the EMX sensor products such as the UVX, CNTX and CMYX feature automatic detection and configuration of the discrete output mode for PNP or NPN operation. This feature prevents connecting the outputs from multiple sensors in parallel. The following diagrams illustrate how to connect the EMX sensors in parallel to any other sensor.

Small Parts Color Verification

Wednesday, April 3, 2019

Ensuring Small Parts Color Accuracy at a Fraction of the Cost


Color verification for small automotive components

The Challenge

A major tier 1 automotive supplier needed to guarantee the correct color of small components used in automotive interiors to cover fasteners. It was imperative that these parts match the color schemes for the interior to error-proof the manufacturing process.

Current processes generally involve inefficient, labor intensive and subjective manual inspection.

Sugar Color Monitoring

Improving Processes and Consistency While Reducing Costs

On-line color monitoring of sugar in real-time

The Challenge

A major raw sugar producer seeks to improve process control methods to reduce production costs while maintaining the color characteristics of the sugar as required by their customers. Supplying sugar with lower ICUMSA color (higher quality) than required in order prevent customer rejection results in increased production costs.

Current process control methods involve color measurements of sugar in a solution.

Clear Label Verification

Tuesday, March 5, 2019

Identifying the Presence of Clear Labels on Products


High-speed clear label presence verification

The Challenge

A major manufacturer of labeling systems for cosmetic, food, chemical and pharmaceutical industries needed to verify the placement of clear labels in the high-speed labeling process to guarantee presence of product label on a wide variety of containers and cartons.

Currently, clear labels are difficult to verify due to the transparent properties of the label.