Leather non-pickling salt-free high-absorption chrome tanning process method
The invention provides a non-pickling salt-free high-absorption chrome tanning process method for leather. The method comprises the following steps: step 1, weighing and metering; step 2, soaking in water; step 3, liming; step 4, washing with water; step 5, pre-deliming; step 6, deliming and softeni...
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| creator | FAN SHAN JIN LONGTAO YANG JUNZI YIN DEHAI YANG SHICHAO |
| description | The invention provides a non-pickling salt-free high-absorption chrome tanning process method for leather. The method comprises the following steps: step 1, weighing and metering; step 2, soaking in water; step 3, liming; step 4, washing with water; step 5, pre-deliming; step 6, deliming and softening: adding 0.5-1 time of 30 DEG C water, adding 0.8% of a deliming agent and 0.2% of a degreasing agent, adding sulfuric acid to adjust the pH value to 3.5, and adding 0.5% of softening compound enzyme and 0.5% of an auxiliary agent; step 7, washing with water; step 8, chrome tanning; step 9, adding acid: adding formic acid and rotating for 30 minutes, wherein the use amount of the formic acid is 0.4-0.5% of the tare weight of the raw materials; step 10, adding acid for several times; the method has the characteristics that the production cost is saved, the environmental pollution is reduced, and the quality index of a finished product is not reduced by promoting chrome tanning absorption.
本发明提供一种皮革不浸酸无盐高吸收铬鞣工艺方法，该 |
| format | Patent |
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本发明提供一种皮革不浸酸无盐高吸收铬鞣工艺方法，该</description><language>chi ; eng</language><subject>APPARATUS THEREFOR ; CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING ; CHEMISTRY ; COMPOSITIONS FOR TANNING ; HIDES ; LEATHER ; METALLURGY ; PELTS ; SKINS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220325&DB=EPODOC&CC=CN&NR=114231672A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220325&DB=EPODOC&CC=CN&NR=114231672A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FAN SHAN</creatorcontrib><creatorcontrib>JIN LONGTAO</creatorcontrib><creatorcontrib>YANG JUNZI</creatorcontrib><creatorcontrib>YIN DEHAI</creatorcontrib><creatorcontrib>YANG SHICHAO</creatorcontrib><title>Leather non-pickling salt-free high-absorption chrome tanning process method</title><description>The invention provides a non-pickling salt-free high-absorption chrome tanning process method for leather. The method comprises the following steps: step 1, weighing and metering; step 2, soaking in water; step 3, liming; step 4, washing with water; step 5, pre-deliming; step 6, deliming and softening: adding 0.5-1 time of 30 DEG C water, adding 0.8% of a deliming agent and 0.2% of a degreasing agent, adding sulfuric acid to adjust the pH value to 3.5, and adding 0.5% of softening compound enzyme and 0.5% of an auxiliary agent; step 7, washing with water; step 8, chrome tanning; step 9, adding acid: adding formic acid and rotating for 30 minutes, wherein the use amount of the formic acid is 0.4-0.5% of the tare weight of the raw materials; step 10, adding acid for several times; the method has the characteristics that the production cost is saved, the environmental pollution is reduced, and the quality index of a finished product is not reduced by promoting chrome tanning absorption.
本发明提供一种皮革不浸酸无盐高吸收铬鞣工艺方法，该</description><subject>APPARATUS THEREFOR</subject><subject>CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS FOR TANNING</subject><subject>HIDES</subject><subject>LEATHER</subject><subject>METALLURGY</subject><subject>PELTS</subject><subject>SKINS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjEOwjAMAMAuDAj4g3lAhrQIZlSBGCom9soEt4lI7Sj2_4WQeADTLbduhoHQIlVgYVdSeOfEMyhmc1Mlgpjm6PCpUoslYQixykJgyPyNpUogVVjIory2zWrCrLT7uWn218ujvzkqMpIWDMRkY3_3_tB2_nhqz90_5wO6GTYV</recordid><startdate>20220325</startdate><enddate>20220325</enddate><creator>FAN SHAN</creator><creator>JIN LONGTAO</creator><creator>YANG JUNZI</creator><creator>YIN DEHAI</creator><creator>YANG SHICHAO</creator><scope>EVB</scope></search><sort><creationdate>20220325</creationdate><title>Leather non-pickling salt-free high-absorption chrome tanning process method</title><author>FAN SHAN ; JIN LONGTAO ; YANG JUNZI ; YIN DEHAI ; YANG SHICHAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114231672A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>APPARATUS THEREFOR</topic><topic>CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS FOR TANNING</topic><topic>HIDES</topic><topic>LEATHER</topic><topic>METALLURGY</topic><topic>PELTS</topic><topic>SKINS</topic><toplevel>online_resources</toplevel><creatorcontrib>FAN SHAN</creatorcontrib><creatorcontrib>JIN LONGTAO</creatorcontrib><creatorcontrib>YANG JUNZI</creatorcontrib><creatorcontrib>YIN DEHAI</creatorcontrib><creatorcontrib>YANG SHICHAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FAN SHAN</au><au>JIN LONGTAO</au><au>YANG JUNZI</au><au>YIN DEHAI</au><au>YANG SHICHAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Leather non-pickling salt-free high-absorption chrome tanning process method</title><date>2022-03-25</date><risdate>2022</risdate><abstract>The invention provides a non-pickling salt-free high-absorption chrome tanning process method for leather. The method comprises the following steps: step 1, weighing and metering; step 2, soaking in water; step 3, liming; step 4, washing with water; step 5, pre-deliming; step 6, deliming and softening: adding 0.5-1 time of 30 DEG C water, adding 0.8% of a deliming agent and 0.2% of a degreasing agent, adding sulfuric acid to adjust the pH value to 3.5, and adding 0.5% of softening compound enzyme and 0.5% of an auxiliary agent; step 7, washing with water; step 8, chrome tanning; step 9, adding acid: adding formic acid and rotating for 30 minutes, wherein the use amount of the formic acid is 0.4-0.5% of the tare weight of the raw materials; step 10, adding acid for several times; the method has the characteristics that the production cost is saved, the environmental pollution is reduced, and the quality index of a finished product is not reduced by promoting chrome tanning absorption.
本发明提供一种皮革不浸酸无盐高吸收铬鞣工艺方法，该</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING CHEMISTRY COMPOSITIONS FOR TANNING HIDES LEATHER METALLURGY PELTS SKINS |
| title | Leather non-pickling salt-free high-absorption chrome tanning process method |
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