SU389183A1 - METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS - Google Patents

METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS

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Publication number
SU389183A1
SU389183A1 SU1432498A SU1432498A SU389183A1 SU 389183 A1 SU389183 A1 SU 389183A1 SU 1432498 A SU1432498 A SU 1432498A SU 1432498 A SU1432498 A SU 1432498A SU 389183 A1 SU389183 A1 SU 389183A1
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SU
USSR - Soviet Union
Prior art keywords
films
light
viscose
hydratsteamally
modification
Prior art date
Application number
SU1432498A
Other languages
Russian (ru)
Inventor
Б. А. Карась О. И. Волкова Константинова С. Л. Дич А. М. Блиндер Г. Б. Штрейс И. С. Сафронопа
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to SU1432498A priority Critical patent/SU389183A1/en
Application granted granted Critical
Publication of SU389183A1 publication Critical patent/SU389183A1/en

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Description

1one

Изобретение относитс  k способу Модифйка НИИ гидратцеллюлозных плеиок.This invention relates to the k method of Modifika Research Institute of Cellulose Pulp Syrup.

Светостойкие гидратцеллюлозные пленки могут быть использованы дл  упаковки лекарственных препаратов, разрушающихс  под действием света, продуктов и других целей.Light resistant cellulose cellulose films can be used to pack drugs that are destroyed by light, food, and other uses.

Известен способ получени  светостойких гидратцеллюлозных пленок введением светочувствительных добавок в пр дильный раствор;A method is known for producing light-resistant cellulose-hydrated films by introducing photosensitive additives into a spinning dope;

С целью придани  светозащитных свойств предлагаетс  вводить в вискозу в качестве добавок сульфатные щелока в количестве 10- 14 г на 100 и вискозы.For the purpose of imparting light-shielding properties, it is proposed to add sulfate liquors in the amount of 10-14 g per 100 and viscose to the viscose.

Сульфатные щелока  вл ютс  отходами целлюлозной промышленности, дешевы, легкодоступны и содержат большое количество хромофорных и хиноиных групп.Sulphate liquors are waste products from the pulp industry, are cheap, readily available and contain a large number of chromophore and hinoin groups.

После введени  сульфатных щелоков и эффективного перемешивани  формуют пленку, промывают ее, пластифицируют, сушат на гладкой поверхности и покрывают с двух сторон лакам1И на основе нитроцеллюлозы или синтетических смол.After the introduction of sulphate liquors and effective mixing, the film is molded, washed, plasticized, dried on a smooth surface and coated on both sides with lacquers based on nitrocellulose or synthetic resins.

Полученные пленки испытывают на спектрофотометре СФ-4А.The films obtained are tested on an SF-4A spectrophotometer.

Пример 1. В вискозиый раствор, содержащий 7% а-целлюлозы, ввод т 10 г сульфатных щелокоз на 100 г вискозы. Пленки формуют по двухванному способу. Перва  ванна содержит 225 г/л NaaSO и (NH4)2S04 при 25°С, втора  80 г/л llzSO при 25°С.Example 1. In a viscose solution containing 7% a-cellulose, 10 g of sulphate liquorosis per 100 g of viscose is added. Films are molded according to the two-step method. The first bath contains 225 g / l NaaSO and (NH4) 2S04 at 25 ° С, the second 80 g / l llzSO at 25 ° С.

аbut

Дл  сравнительной оценки светостойкости из вискозного раствора того же состава и в тех же осадительных ваннах формуют пленки без добавок. Затем пленки промывают водой, пластифицируют раствором глицерина (уд. вес 1,012-1,015), сушат на гладкой поверхности при 70-бО С и покрывают с двух сторон лаком на основе нитроцеллюлозы.For a comparative evaluation of the light fastness, films without additives are formed from a viscose solution of the same composition and in the same precipitation baths. Then the films are washed with water, plasticized with a solution of glycerin (sp. Weight 1,012-1,015), dried on a smooth surface at 70-C, and coated on both sides with a varnish based on nitrocellulose.

Пленки, полученные в присутствип сульфатных щелоков, устойчивы к действию ультрафиолетовых лучей. Они пропускают 10% лучейFilms obtained in the presence of sulfate liquors are resistant to ultraviolet rays. They miss 10% of the rays.

оabout

света с длиной волны 3600 А, тогда как пленки , полученные из вискозного раствора, не содержащего добавок, пропускают 90% лучей света с указанной длиной волны, т. е. введение сульфатных нделоков ослабл ет действие ультрафиолетового света в 9 раз.light with a wavelength of 3600 A, while the films obtained from the viscose solution containing no additives transmit 90% of the light rays with the specified wavelength, i.e. the introduction of sulphate fractions reduces the effect of UV light by 9 times

П р и м е р 2. Опыт нровод т в тех же услови х , что и в примере 1, но в вискозный раствор добавл ют 14 г сульфатных щелоков на 100 г вискозы.EXAMPLE 2. The test was carried out under the same conditions as in Example 1, but 14 g of sulphate liquors per 100 g of viscose were added to the viscose solution.

Полученна  пленка пропускает только 1 %The resulting film passes only 1%

ОABOUT

лучей света с длиной волны 3600 Л.Rays of light with a wavelength of 3600 L.

Предмет изобретени Subject invention

Способ модификации гидратцеллюлозных пленок путем введени  добавок в пр дильный раствор, отличающийс  тем, что, с целью придани  светозащитных свойств, в качестве добавок иснользуют сульфатные щелока в количестве 10-И г на 100 г вискозы.The method of modifying hydrated cellulose films by introducing additives into a spinning solution, characterized in that, in order to impart light-protective properties, sulfate liquors in an amount of 10 g per 100 g of viscose are used as additives.

SU1432498A 1970-04-20 1970-04-20 METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS SU389183A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1432498A SU389183A1 (en) 1970-04-20 1970-04-20 METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1432498A SU389183A1 (en) 1970-04-20 1970-04-20 METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS

Publications (1)

Publication Number Publication Date
SU389183A1 true SU389183A1 (en) 1973-07-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1432498A SU389183A1 (en) 1970-04-20 1970-04-20 METHOD OF MODIFICATION OF HYDRATSTEAMALLY FILMS

Country Status (1)

Country Link
SU (1) SU389183A1 (en)

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