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preg_match - [internal], line ??
DboSource::name() - CORE/Cake/Model/Datasource/DboSource.php, line 916
DboSource::_quoteMatchedField() - CORE/Cake/Model/Datasource/DboSource.php, line 3001
preg_replace_callback - [internal], line ??
DboSource::_quoteFields() - CORE/Cake/Model/Datasource/DboSource.php, line 2977
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2746
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 2011
DboSource::buildAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1729
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1184
Model::_readDataSource() - CORE/Cake/Model/Model.php, line 3040
Model::find() - CORE/Cake/Model/Model.php, line 3012
SiteController::beforeFilter() - APP/Controller/SiteController.php, line 455
CakeEventManager::dispatch() - CORE/Cake/Event/CakeEventManager.php, line 243
Controller::startupProcess() - CORE/Cake/Controller/Controller.php, line 677
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 189
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 110

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preg_match - [internal], line ??
DboSource::name() - CORE/Cake/Model/Datasource/DboSource.php, line 916
DboSource::_quoteMatchedField() - CORE/Cake/Model/Datasource/DboSource.php, line 3001
preg_replace_callback - [internal], line ??
DboSource::_quoteFields() - CORE/Cake/Model/Datasource/DboSource.php, line 2977
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2746
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 2011
DboSource::buildAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1729
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1184
Model::_readDataSource() - CORE/Cake/Model/Model.php, line 3040
Model::find() - CORE/Cake/Model/Model.php, line 3012
SiteController::beforeFilter() - APP/Controller/SiteController.php, line 455
CakeEventManager::dispatch() - CORE/Cake/Event/CakeEventManager.php, line 243
Controller::startupProcess() - CORE/Cake/Controller/Controller.php, line 677
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 189
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 110

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$data = ''%Newsletter Archive%''
$cacheKey = 'c8028420c33b4e97d0eaf38f5f98b37a'
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preg_match - [internal], line ??
DboSource::name() - CORE/Cake/Model/Datasource/DboSource.php, line 916
DboSource::_quoteMatchedField() - CORE/Cake/Model/Datasource/DboSource.php, line 3001
preg_replace_callback - [internal], line ??
DboSource::_quoteFields() - CORE/Cake/Model/Datasource/DboSource.php, line 2977
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2746
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 2011
DboSource::buildAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1729
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1184
Model::_readDataSource() - CORE/Cake/Model/Model.php, line 3040
Model::find() - CORE/Cake/Model/Model.php, line 3012
SiteController::beforeFilter() - APP/Controller/SiteController.php, line 468
CakeEventManager::dispatch() - CORE/Cake/Event/CakeEventManager.php, line 243
Controller::startupProcess() - CORE/Cake/Controller/Controller.php, line 677
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 189
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 110

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            );
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        if (preg_match('/^[\w-_\s]*[\w-_]+/', $data)) {
$data = ''10-zdirection-tensile-strength-improvement-leads-to-40k-in-annual-production-increases''
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$return = null
$matches = array()
preg_match - [internal], line ??
DboSource::name() - CORE/Cake/Model/Datasource/DboSource.php, line 916
DboSource::_quoteMatchedField() - CORE/Cake/Model/Datasource/DboSource.php, line 3001
preg_replace_callback - [internal], line ??
DboSource::_quoteFields() - CORE/Cake/Model/Datasource/DboSource.php, line 2977
DboSource::conditions() - CORE/Cake/Model/Datasource/DboSource.php, line 2746
DboSource::buildStatement() - CORE/Cake/Model/Datasource/DboSource.php, line 2011
DboSource::buildAssociationQuery() - CORE/Cake/Model/Datasource/DboSource.php, line 1729
DboSource::read() - CORE/Cake/Model/Datasource/DboSource.php, line 1184
Model::_readDataSource() - CORE/Cake/Model/Model.php, line 3040
Model::find() - CORE/Cake/Model/Model.php, line 3012
SiteController::blog() - APP/Controller/SiteController.php, line 1354
ReflectionMethod::invokeArgs() - [internal], line ??
Controller::invokeAction() - CORE/Cake/Controller/Controller.php, line 491
Dispatcher::_invoke() - CORE/Cake/Routing/Dispatcher.php, line 193
Dispatcher::dispatch() - CORE/Cake/Routing/Dispatcher.php, line 167
[main] - APP/webroot/index.php, line 110

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10% Z-Direction Tensile Strength Improvement Leads to $40K in Annual Production Increases

Published on November 13, 2025

A brown and kraft paper mill wanted to increase machine speed by improving z-directional tensile strengh. Fiber strands are deposited in layers during the paper forming process. The z-directional tensile strength (z ply, ply bond, ZDT) is the measure of the internal strength between paper layers. The force required to pull fibers apart perpendicular to the plane of the paper is critical during converting for printing, folding, transit, and consumer applications. Improved z-direction strength contributes to improvements in roll wear, paper quality and machine speed.

The mill  partnered with Precision Roll Grinders with a focus on improved roll profile, concentricity, and roundness, with no deviations larger than 0.0002 inches. Upon installation of the Precision Ground rolls, the machine’s z-directional tensile strength increased by 10%. This increased z-direction strength allowed the mill to increase machine speed by 0.7 ton/hour, representing a $40,000 increase in annual production.

Contact your local Precision Roll Grinders account manager to learn more.

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