Unfortunately, this causes 5 columns per page rather than 6, but it's just a series of nudges to get it there. On the Drupal side, there are classes added to QR code and descriptors (see below).

qr label css

@page {
		margin-top: 13mm;
		/*margin-bottom: 8mm; factor for padding */
		margin-left: 20mm;
		margin-right: 20mm;}

#page {padding: 0; margin: 0;}



td div {
		margin-right: auto;
		margin-left: auto;
		text-align: center;
	}

		
	td {
	/*	padding-bottom: 5mm;
		padding-right: 8mm; */
	}

	tr { 
  		max-height: 380px;
	    height: 180px;
	}

	table {  
  		page-break-inside: avoid; 
  		max-height: ;
	}

	.itemname {
		font: 10pt Arial;
        margin-top: -40px;
  		height: 15px;
  		width: 160px;
  		overflow: hidden;
	}
	
	.views-field { 
		font: 10pt Arial;
	}
    .itemnumber {
    	font: bold;
      }

	.itemqr {
  		max-width: 250px; 
  		margin-bottom: -35px;
  		margin-top: -30px;
    }
	.itemqr img {
  		height: 150px;
   		margin-top: -30px; 

  }

	.view-filters {
		display: none;
	}
	
	#branding {
		display:none;
	}