<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31299331</termId><termName>Tyvek (TM)</termName><termType>PT</termType><termNote><![CDATA[ Trademarked name for series of spunbonded sheet products made of olefin fiber. This durable, tear resistant, waterproof polyethylene fabric has many applications. These include use as paper, garments, a protective liner in packing crates and display, and is widely used as a material in book conservation. ]]></termNote><termCreatedDate>2026-03-30 20:20:19</termCreatedDate><relation><relationType>BT</relationType><termId>31297611</termId><termName>brand name materials</termName><termType>PT</termType></relation></term>  </Zthes>