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  <xsd:element abstract="true" id="ntic_statement-statement-note-13-cost-of-goods-sold-by-segment-details" name="statement-statement-note-13-cost-of-goods-sold-by-segment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-fees-for-services-provided-to-joint-ventures-by-geographic-location-as-a-percentage-of-total-fees-for-services-provided-to-joint-ventures-details" name="statement-statement-note-13-fees-for-services-provided-to-joint-ventures-by-geographic-location-as-a-percentage-of-total-fees-for-services-provided-to-joint-ventures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-geographic-and-segment-information-tables" name="statement-statement-note-13-geographic-and-segment-information-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-net-sales-by-geographic-location-as-percentage-of-total-consolidated-net-sales-details" name="statement-statement-note-13-net-sales-by-geographic-location-as-percentage-of-total-consolidated-net-sales-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-net-sales-by-segment-details" name="statement-statement-note-13-net-sales-by-segment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-total-longlived-assets-by-geographic-distribution-details" name="statement-statement-note-13-total-longlived-assets-by-geographic-distribution-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-13-total-net-sales-by-geographic-distribution-details" name="statement-statement-note-13-total-net-sales-by-geographic-distribution-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-deferred-tax-assets-valuation-allowance-details" name="statement-statement-note-17-deferred-tax-assets-valuation-allowance-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-income-taxes-tables" name="statement-statement-note-17-income-taxes-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-provision-for-income-taxes-details" name="statement-statement-note-17-provision-for-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-reconciliation-of-the-total-amounts-of-unrecognized-tax-benefits-details" name="statement-statement-note-17-reconciliation-of-the-total-amounts-of-unrecognized-tax-benefits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-reconciliations-of-the-expected-federal-income-tax-at-the-statutory-rate-with-the-provisions-for-income-taxes-details" name="statement-statement-note-17-reconciliations-of-the-expected-federal-income-tax-at-the-statutory-rate-with-the-provisions-for-income-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-17-tax-effect-of-the-temporary-differences-and-tax-carry-forwards-comprising-net-deferred-taxes-details" name="statement-statement-note-17-tax-effect-of-the-temporary-differences-and-tax-carry-forwards-comprising-net-deferred-taxes-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-19-statements-of-cash-flows-tables" name="statement-statement-note-19-statements-of-cash-flows-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-19-supplemental-disclosures-of-cash-flow-information-details" name="statement-statement-note-19-supplemental-disclosures-of-cash-flow-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-20-assets-and-liabilities-measured-at-fair-value-recurring-basis-details" name="statement-statement-note-20-assets-and-liabilities-measured-at-fair-value-recurring-basis-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-20-fair-value-measurements-tables" name="statement-statement-note-20-fair-value-measurements-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-21-quarterly-information-details" name="statement-statement-note-21-quarterly-information-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-21-quarterly-information-unaudited-tables" name="statement-statement-note-21-quarterly-information-unaudited-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-3-allocation-of-the-total-transaction-amount-details" name="statement-statement-note-3-allocation-of-the-total-transaction-amount-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-3-nti-asean-tables" name="statement-statement-note-3-nti-asean-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-4-inventories-details" name="statement-statement-note-4-inventories-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-4-inventories-tables" name="statement-statement-note-4-inventories-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-5-components-of-property-and-equipment-net-details" name="statement-statement-note-5-components-of-property-and-equipment-net-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-5-property-and-equipment-net-tables" name="statement-statement-note-5-property-and-equipment-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-6-patents-and-trademarks-net-details" name="statement-statement-note-6-patents-and-trademarks-net-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-6-patents-and-trademarks-net-tables" name="statement-statement-note-6-patents-and-trademarks-net-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-7-condensed-balance-sheet-of-excor-and-tianjin-zerust-and-all-other-joint-ventures-details" name="statement-statement-note-7-condensed-balance-sheet-of-excor-and-tianjin-zerust-and-all-other-joint-ventures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-7-condensed-income-statement-of-excor-and-tianjin-zerust-and-all-other-joint-ventures-details" name="statement-statement-note-7-condensed-income-statement-of-excor-and-tianjin-zerust-and-all-other-joint-ventures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-7-investments-in-joint-ventures-tables" name="statement-statement-note-7-investments-in-joint-ventures-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-8-china-operations-tables" name="statement-statement-note-8-china-operations-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-note-8-investment-in-tianjin-zerust-details" name="statement-statement-note-8-investment-in-tianjin-zerust-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="ntic_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>