JPH03294594A - Cellulosic fiber of grass and vegetable, its production, paper made of cellulosic fiber of grass and vegetable and production thereof - Google Patents

Abstract

PURPOSE:To obtain a cellulosic fiber suppliable in large quantities at a low cost by cutting the stalk and petiole of various grasses and flowers belonging to order Liliiflorae, throwing the cut stalk, etc., into an alkaline aqueous solution, adding an anionic surfactant and heating the mixture. CONSTITUTION:The objective cellulosic fiber derived from grasses, flowers and vegetables can be produced by cutting the stalk or petiole of various grasses and flowers belonging to order Liliiflorae, class Monocotyledoneae to a prescribed length, throwing the cut stalk, etc., into an alkaline aqueous solution, adding an anionic surfactant and heating the mixture.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides cellulose fibers obtained from familiar plants such as flowers and vegetables, which have not been considered in the past, as well as a method for producing the same. This invention relates to paper made from cellulose fibers obtained as a raw material and a method for producing the same.

[Prior Art] In general, paper is made by skimming short cellulose fibers, intertwining the fibers, and bonding them with pectin to form a thin, flat plate.
Paperboard is made from pulp obtained by crushing or chemically treating various types of wood, and Japanese paper is made from bast fibers obtained by steaming the bark of mulberry, mitsumata, ganpi, etc. It is manufactured through processes such as , paper making, and pressing.

[Problem to be solved by the invention]

However, these papers are made from pulp obtained from wood, and in the current situation where the demand for paper, which is said to be a barometer of culture, is rapidly increasing due to the remarkable progress of culture in recent years, it is inevitable that The amount of timber harvested has increased significantly in recent years, and deforestation due to over-logging has become an extremely serious problem.

Therefore, in order to conserve the earth's natural environment and protect forests while at the same time maintaining and further developing the current civilization, it is necessary to develop new methods that can easily supply paper in place of wood pulp. There is an urgent need to secure textile materials.

However, if synthetic chemicals are used to create new fiber materials, there is a risk of creating new pollution problems, and in the case of paper, especially since large amounts of raw materials are required, if such problems are If it occurs, it could control the life and death of the earth. Therefore, the new material must be a natural substance,
Moreover, it must be able to be supplied cheaply and in abundance, but this problem has not been solved to date.

[Means to solve the problem]

This invention was made as a result of intensive research in view of the current situation, and it can be applied to the stems or petioles of various flowering plants belonging to the monocotyledonous order, as well as the stems and petioles of various flowering plants belonging to the winter order of the dicotyledonous order. The stems or petioles of vegetables are cut to a predetermined length and placed in an alkaline aqueous solution. Next, an anionic surfactant is added thereto and heated to form cellulose fibers. Cellulose fibers are swollen in water, then decomposed to create a sifting bath, then skimmed in a paper machine, dehydrated, pressed, and dried to make paper. By utilizing the neglected cellulose fibers found in common plants such as flowers and vegetables, this product contributes to the prevention of deforestation caused by excessive logging for pulp wood, which has become a major problem in recent years. be.

In this invention, the plants used as raw materials include various flowering plants belonging to the order Liliales of the monocotyledonous class that we come into contact with in our daily lives, flowering plants belonging to the winter order of the dicotyledonous class, and vegetables. The stems and petioles of these plants have bast-like cellulose fibers that maintain their strength. These cellulose fibers are of the same quality as cellulose fibers for clothing, and are also of the same quality as the cellulose fibers of wood pulp, which is the raw material for conventional paper.

Therefore, the stems or petioles of various flowering plants belonging to the order Liliales of the monocotyledonous class, and the stems or petioles of flowering plants and vegetables belonging to the winter order of the class dicotyledonous plants, are treated with alkaline and anionic surfactants. The cellulose fibers obtained from plants and vegetables can be used as raw materials for fibers for clothing, and if these cellulose fibers are used as raw materials to make paper using normal methods, paper with sufficient practicality can be obtained. It will be done.

In addition, the stems or petioles of flowers and vegetables containing these cellulose fibers can be supplied in large quantities as needed, so they can be supplied in large quantities in place of conventional wood bulbs. Large quantities of paper can be readily produced from these hitherto little utilized cellulose fibers. Moreover, large quantities of paper can be supplied from natural materials without the risk of causing new pollution problems, and the deterioration of the global environment due to deforestation can be prevented.

Furthermore, unlike traditional solid wood bulbs, the stems and petioles of flowers and vegetables require a large amount of energy and processing to produce pulp that can be made into paper, whether it is crushed or chemically treated. Does not require drugs
Cellulose fibers that can be made into paper can be obtained by extremely simple processing.

An extremely wide variety of flowering plants belonging to the monocotyledonous order Liliales are used to collect the stems or petioles that are used as raw materials for paper, etc., but in particular, rushes of the rush family and lily family are used. Suitable examples include lilies, tulips, hyacinths, bell orchids, daffodils of the Amaryllidaceae family, and irises of the Iridaceae family. Flowering plants and vegetables belonging to the winter class of the dicotyledonous class include many flowers and vegetables, such as Dianthus dianthus, a member of the Caryophyllaceae family,
Carnations, shepherd's purse, oil vegetables,
Radishes, turnips, legumes of the order Fabaceae, wisteria, Japanese bush clover, eggplants of the family Lamiaceae, tomatoes, potatoes, cucurbits of the order Cucurbitaceae, chrysanthemums of the family Asteraceae, sunflowers, Japanese yolks, dahlias, butterflies, and butterflies. , Japanese daisy, etc. are preferably used.

Cellulose fibers obtained from the stems or petioles of various flowering plants belonging to the order Liliales of the monocotyledonous class, and from the stems or petioles of flowering plants and vegetables belonging to the winter order of the class dicotyledonous plants, can be obtained from the stems or petioles of these plants. Alternatively, it is produced by cutting the petiole into a predetermined length, placing it in an aqueous alkaline solution, adding an anionic surfactant thereto, and heating it. At this time, the stems or petioles of these plants are usually cut and crushed before use, and the alkaline aqueous solution is 2 to 4 parts by weight of 0.5 to 1% sodium hydroxide aqueous solution,
Aqueous alkali solutions such as % sodium carbonate aqueous solution and 1-2% sodium silicate aqueous solution are used. In addition, as an anionic surfactant, soap etc. are used, and 0.01 to 0.02
It is used by adding parts by weight. Further, the heat treatment after adding the anionic surfactant is performed by boiling at a temperature of 95 to 100°C for 1 to 2 hours. By these treatments, most of the parts of the plant stems or petioles other than the fibers are dissolved, and cellulose fibers can be obtained by washing this with water.

The cellulose fibers obtained in this way can be used as they are, but if bleaching is required, the cellulose fibers may be immediately placed in an alkaline aqueous solution, a bleaching agent added thereto, and heated. bleached with In this bleaching treatment, the alkaline aqueous solution includes 2 to 3 parts by weight of a 0.1 to 0.5% sodium silicate aqueous solution, 0.
1-0.5% sodium carbonate aqueous solution, 0.1-0.5%
An alkaline aqueous solution such as an aqueous sodium hydroxide solution is used, and as a reducing agent, 0.01 to 0.05 parts by weight of hydrogen peroxide or sodium percarbonate, potassium hypochlorite, hydrosulfide, etc. are used. Also, heat treatment:
The fibers are boiled for 0.5 to 1 hour, and once the bleaching is complete, the fibers are taken out, washed with water, and then dried.

When the cellulose fibers obtained in this way are used as a raw material for paper, they are soaked in water to sufficiently swell them, and the sufficiently swollen fine cellulose fibers are further lysed by a normal method such as being placed in a mixer. A pain bath is then prepared. Then, using this making bath, the paper is made in a paper making machine in exactly the same manner as in ordinary paper making, and is then dehydrated, pressed, and dried to produce various kinds of paper. At this time, if necessary, sizing is performed in the same manner as in conventional paper manufacturing, and a filler is added.

〔Example〕

Next, embodiments of the invention will be described.

Example 1 Cut and grind 1 kg of tulip stems to give 0.2
% aqueous sodium hydroxide solution. 15 g of soap was added to this and boiled for 1 hour. When the stems turned into fibers, they were taken out and washed with water to leave only the fibers.

Next, this fiber was immediately put into a 0.2% sodium metasilicate aqueous solution 21, and 60ml of 30% hydrogen peroxide was added thereto.
was added, boiled for 30 minutes, and bleached. Thereafter, the fibers were taken out, washed with water, and dried to obtain about 50 g of bast-like cellulose fibers.

Next, the obtained cellulose fibers were thoroughly loosened, swollen in water, and dissolved in a mixer. This is then strained using a wire mesh imitating a paper machine, dehydrated, pressed,
Paper was made after drying.

Example 2 In Example 1, 1k of radish stems were used instead of tulips.
Cellulose fibers were produced and paper was made in the same manner as in Example 1, except that the cellulose fibers were cut and ground before use.

Example 3 In Example 1, 1k of daffodil stems were used instead of tulips.
Cellulose fibers were produced and paper was produced in the same manner as in Example 1, except that the cellulose fibers were cut and used after being rubbed.

Example 4 In Example 1, 1 kg of turnip stems were used instead of tulips.
Cellulose fibers were produced and paper was made in the same manner as in Example 1, except that the fibers were cut and ground before use.

Example 5 In Example 1, 1k lily stems were used instead of tulips.
Cellulose fibers were produced and paper was made in the same manner as in Example 1, except that the cellulose fibers were cut and ground before use.

Example 6 Cellulose fibers were produced and paper was produced in the same manner as in Example 1, except that 1 kg of broccoli stems were cut and rubbed instead of tulips.

Example 7 In Example 1, except that 1 kg of carnation stems were cut and ground in place of tulips,
Cellulose fibers were produced and paper was produced in the same manner as in Example 1.

Comparative Example 1 200 g of commercially available pulp, which is a conventional raw material for paper, was thoroughly peeled, swollen in water, and dissolved in a mixer. The material was then strained using a wire mesh modeled on a paper-making machine, dehydrated, pressed, and dried to make paper.

When the paper quality of the papers obtained in each Example and Comparative Example was compared, they were almost the same.

〔Effect of the invention〕

As is clear from the quality of the paper obtained in each of the above Examples and Comparative Examples, the paper obtained by this invention (Examples 1 to 7)
The paper quality is almost the same as that of the conventional paper pulp (Comparative Example 1). Therefore, according to the present invention, instead of the conventional wood pulp, cellulose from flowers and vegetables, which has been hardly used until now, can be used. It is possible to easily produce large amounts of paper from fibers without causing new pollution problems, and it is possible to supply large amounts of paper from natural materials, preventing deterioration of the global environment due to deforestation. It turns out that you can do it.

Claims (1)

[Scope of Claims] 1. Cellulose fibers of flowers and vegetables obtained by treating the stems or petioles of various flowering plants belonging to the order Liliales, class Monocots, with alkali and anionic surfactants. The stems or petioles of various flowering plants belonging to the order Liliales are cut to a predetermined length and placed in an alkaline aqueous solution, and then an anionic surfactant is added thereto,
Method 3 for producing cellulose fibers from flowers and vegetables, characterized by heating them to form cellulose fibers, treating the stems or petioles of various flowering plants belonging to the monocotyledonous order Liliales with an alkali and anionic surfactant Paper made from cellulose fibers of flowers and vegetables formed by straining the cellulose fibers obtained by the process 4, stems or petioles of various flowering plants belonging to the order Liliales of the monocotyledonous class are treated with an alkali and anionic surfactant. The cellulose fibers obtained by the treatment are swollen in water, then decomposed to make a straining bath, and then strained with a paper machine, dehydrated,
A method for producing paper made from cellulose fibers of flowers and vegetables by pressing and drying to make paper 5. Process for producing paper made from cellulose fibers of flowers and vegetables, which is characterized by pressing and drying to make paper. Cellulose fibers of flowers and vegetables obtained by treatment with a surfactant6, stems or petioles of flowers and vegetables belonging to each order of the dicotyledonous class are cut to a predetermined length and placed in an alkaline aqueous solution. Then, an anionic surfactant is added thereto and heated to produce cellulose fibers. Method 7 for producing cellulose fibers for flowers and vegetables. Flowers belonging to each order of the class Dicotyledonous Plants. Also, paper made from cellulose fibers of flowers and vegetables formed by filtration of cellulose fibers obtained by treating the stems or petioles of vegetables with alkali and anionic surfactants, 8, and each order of dicotyledonous plants. Cellulose fibers obtained by treating the stems or petioles of various flowers and vegetables with alkaline and anionic surfactants are swollen in water, then dissolved to make a straining bath, and then strained with a paper machine. ,
A method for producing paper made from cellulose fibers of flowers and vegetables, which comprises dehydrating, pressing, and drying the paper.