<?xml version="1.0" encoding="UTF-8"?>

<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink">
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    <link:loc xlink:type="locator" xlink:href="https://www.xbrl.org/taxonomy/int/lei/2020-07-02/lei.xsd#lei_LEI" xlink:label="lei_LEI_loc"/>
    <link:label xlink:type="resource" xlink:label="lei_LEI_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xlink:title="label_LegalEntityIdentifier" xml:lang="de">Legal Entity Identifier (LEI)</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="lei_LEI_loc" xlink:to="lei_LEI_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_BusinessNames" xlink:label="kvk_BusinessNames_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_BusinessNames_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Handelsnamen</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_BusinessNames_loc" xlink:to="kvk_BusinessNames_label_de"/>
    <link:label xlink:type="resource" xlink:label="kvk_BusinessNames_verboseLabel_de" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="de">Name des berichtenden Rechtsubjekts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_BusinessNames_loc" xlink:to="kvk_BusinessNames_verboseLabel_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_CashFlowStatementMethodType" xlink:label="kvk_CashFlowStatementMethodType_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_CashFlowStatementMethodType_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Art (der) Kapitalflussrechnung</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_CashFlowStatementMethodType_loc" xlink:to="kvk_CashFlowStatementMethodType_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_IncomeStatementClassificationType" xlink:label="kvk_IncomeStatementClassificationType_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_IncomeStatementClassificationType_terseLabel_de" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="de">Typ Erfolgsrechnung</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_IncomeStatementClassificationType_loc" xlink:to="kvk_IncomeStatementClassificationType_terseLabel_de"/>
    <link:label xlink:type="resource" xlink:label="kvk_IncomeStatementClassificationType_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Typ Gewinn- und Verlustrechnung</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_IncomeStatementClassificationType_loc" xlink:to="kvk_IncomeStatementClassificationType_label_de"/>
    <link:label xlink:type="resource" xlink:label="kvk_IncomeStatementClassificationType_verboseLabel_de" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xml:lang="de">Typ Stand der Erträge und Aufwendungen</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_IncomeStatementClassificationType_loc" xlink:to="kvk_IncomeStatementClassificationType_verboseLabel_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_TitleOfTheDocument" xlink:label="kvk_TitleOfTheDocument_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_TitleOfTheDocument_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Titel des Dokuments</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_TitleOfTheDocument_loc" xlink:to="kvk_TitleOfTheDocument_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySize" xlink:label="kvk_LegalEntitySize_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySize_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Business-Klasse</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySize_loc" xlink:to="kvk_LegalEntitySize_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LineItemsInSeparateFinancialStatementsPlaceholder" xlink:label="kvk_LineItemsInSeparateFinancialStatementsPlaceholder_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LineItemsInSeparateFinancialStatementsPlaceholder_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Posten in den Einzelabschlussen [Platzhalter]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LineItemsInSeparateFinancialStatementsPlaceholder_loc" xlink:to="kvk_LineItemsInSeparateFinancialStatementsPlaceholder_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LineItemsInConsolidatedFinancialStatementsPlaceholder" xlink:label="kvk_LineItemsInConsolidatedFinancialStatementsPlaceholder_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LineItemsInConsolidatedFinancialStatementsPlaceholder_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Posten der konsolidierten Jahresabschlüsse [Platzhalter]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LineItemsInConsolidatedFinancialStatementsPlaceholder_loc" xlink:to="kvk_LineItemsInConsolidatedFinancialStatementsPlaceholder_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_NullDimension" xlink:label="kvk_NullDimension_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_NullDimension_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Null-Dimension</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_NullDimension_loc" xlink:to="kvk_NullDimension_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_NullHypercube" xlink:label="kvk_NullHypercube_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_NullHypercube_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Null-Hypercube</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_NullHypercube_loc" xlink:to="kvk_NullHypercube_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_NullLineItems" xlink:label="kvk_NullLineItems_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_NullLineItems_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Null-Positionen</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_NullLineItems_loc" xlink:to="kvk_NullLineItems_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_AnnualReportFilingInformationTitle" xlink:label="kvk_AnnualReportFilingInformationTitle_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_AnnualReportFilingInformationTitle_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Informationen über die Einreichung des Jahresberichts</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_AnnualReportFilingInformationTitle_loc" xlink:to="kvk_AnnualReportFilingInformationTitle_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_PresentationOrder" xlink:label="kvk_PresentationOrder_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_PresentationOrder_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Eingegebene Präsentation</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_PresentationOrder_loc" xlink:to="kvk_PresentationOrder_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_NonDimensionalHypercube" xlink:label="kvk_NonDimensionalHypercube_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_NonDimensionalHypercube_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Nichtdimensionale Hypercube</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_NonDimensionalHypercube_loc" xlink:to="kvk_NonDimensionalHypercube_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_NonDimensionalLineItems" xlink:label="kvk_NonDimensionalLineItems_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_NonDimensionalLineItems_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Nicht-dimensionale Elemente</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_NonDimensionalLineItems_loc" xlink:to="kvk_NonDimensionalLineItems_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_AuditorsReportFinancialStatementsPresent" xlink:label="kvk_AuditorsReportFinancialStatementsPresent_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_AuditorsReportFinancialStatementsPresent_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Bericht des Abschlussprüfers über die Ordnungsmäßigkeit des Jahresabschlusses liegt vor</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_AuditorsReportFinancialStatementsPresent_loc" xlink:to="kvk_AuditorsReportFinancialStatementsPresent_label_de"/>
    <link:label xlink:type="resource" xlink:label="kvk_AuditorsReportFinancialStatementsPresent_terseLabel_de" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="de">Der Bericht des Abschlussprüfers liegt vor</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_AuditorsReportFinancialStatementsPresent_loc" xlink:to="kvk_AuditorsReportFinancialStatementsPresent_terseLabel_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeMicroMember" xlink:label="kvk_LegalEntitySizeMicroMember_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySizeMicroMember_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Kleinste juristische Person</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySizeMicroMember_loc" xlink:to="kvk_LegalEntitySizeMicroMember_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeSmallMember" xlink:label="kvk_LegalEntitySizeSmallMember_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySizeSmallMember_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Kleine juristische Person</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySizeSmallMember_loc" xlink:to="kvk_LegalEntitySizeSmallMember_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeMediumMember" xlink:label="kvk_LegalEntitySizeMediumMember_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySizeMediumMember_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Mittlere juristische Person</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySizeMediumMember_loc" xlink:to="kvk_LegalEntitySizeMediumMember_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeLargeMember" xlink:label="kvk_LegalEntitySizeLargeMember_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySizeLargeMember_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Große juristische Person</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySizeLargeMember_loc" xlink:to="kvk_LegalEntitySizeLargeMember_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_LegalEntitySizeDomain" xlink:label="kvk_LegalEntitySizeDomain_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_LegalEntitySizeDomain_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Business-Klasse [Bereich]</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_LegalEntitySizeDomain_loc" xlink:to="kvk_LegalEntitySizeDomain_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle403" xlink:label="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle403_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle403_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Jahresbericht eines ausländischen Konzernvorstands, der sich auf die Gruppenfreistellung gemäß Artikel 2:403 BW bezieht</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle403_loc" xlink:to="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle403_label_de"/>
    <link:loc xlink:type="locator" xlink:href="kvk-cor.xsd#kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle408" xlink:label="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle408_loc"/>
    <link:label xlink:type="resource" xlink:label="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle408_label_de" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="de">Jahresbericht eines ausländischen Konzernvorstands, der sich auf die Konsolidierungsbefreiung gemäß Artikel 2:408 BW bezieht</link:label>
    <link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle408_loc" xlink:to="kvk_AnnualReportOfForeignGroupHeadForExemptionUnderArticle408_label_de"/>
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